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1
M8SL2-00-002-812
T800 SL2
Base Station Equipment
400 to 520MHz 25 Watt Continuous
Service Manual
August 2004
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
2
M8SL2-00-002-812
T800
T800
North America
South East Asia
Regional Head Office
Canada
Regional Head Office
Singapore
Tait Mobile Radio Inc.
Unit 5, 158 Anderson Avenue
Markham
Ontario L6E 1A9
Canada
Phone: 1 905 472 1100
Toll Free: 1 800 890 TAIT (8248)
Fax: 1 905 472 5300
E-mail: canada@taitworld.com
Tait Electronics (Far East) Pte Ltd
491B River Valley Road
#09-02 Valley Point Office Tower
Singapore 248373
Phone: 65 471 2688
Fax: 65 479 7778
E-mail: singapore@taitworld.com
North Asia
Regional Head Office
Hong Kong
Europe
USA
Corporate Head Office
Tait Electronics Ltd
175 Roydvale Avenue
P.O. Box 1645
Christchurch
New Zealand
Toll Free: 1 800 890 TAIT (8248)
E-mail: usa@taitworld.com
Latin America
E-mail: latinamerica@taitworld.com
Technical Support Enquiries
Phone: 64 3 357 9991
Fax: 64 3 358 0320
E-mail: support@taitworld.com
Internet
http://www.taitworld.com
New Zealand
Tait Communications Ltd
540 Wairakei Road
P.O. Box 1185
Christchurch
Phone: 64 3 357 2750
Fax: 64 3 358 2029
E-mail: headoffice@tcl.tait.co.nz
Australia
Tait Electronics (Aust) Pty Ltd
186 Granite Street
Geebung
Queensland 4034
P.O. Box 679
Virginia
Queensland 4014
Australia
Phone: 61 7 3865 7799
Toll Free: 1 300 304 344
Fax: 61 7 3865 7990
E-mail: australia@taitworld.com
Thailand
Tait Mobile Radio Ltd
14/1 Suwan Tower
Third Floor
North Sathorn Road
Soi Saladaeng 1
Bangrak
Bangkok 10500
Thailand
Phone: 662 267 6290
Fax: 662 267 6293
E-mail: thailand@taitworld.com
TEL Contact Information
Tait Mobile Radio (HK) Ltd
Unit 2216, North Tower
Concordia Plaza
No. 1 Science Museum Road
Tsim Sha Tsui East
Kowloon
Phone: 852 2369 3040
Fax: 852 2369 3009
E-mail: hongkong@taitworld.com
Beijing
Tait Mobile Radio (HK) Ltd
Beijing Representative Office
Room 610, Tower 2
Beijing Henderson Centre
No. 18 Jianguomennei Da Jie
Doncheng District
Beijing
China 100005
Phone: 86 10 6518 6290
Fax: 86 10 6518 6296
E-mail: beijing@taitworld.com
Regional Head Office
United Kingdom
Tait Europe Ltd
Ermine Business Park
Ermine Road
Huntingdon
Cambridgeshire PE29 6WT
United Kingdom
Phone: 44 1480 52 255
Fax: 44 1480 411 996
E-mail: unitedkingdom@taitworld.com
France
Antenne Française
E-mail: france@taitworld.com
Germany
Zweigstelle Deutschland
E-mail: germany@taitworld.com
Taiwan
Tait Mobile Radio (Taiwan) Ltd
5Fl., No. 159, Keelung Road
Sec. 1
Taipei 110
Taiwan
Phone: 886 2 2768 6600
Fax: 886 2 2761 9970
E-mail: taiwan@taitworld.com
© Copyright Tait Electronics Limited August 2004. All rights reserved.
3
M8SL2-00-002-812
About This Manual
Scope
This manual contains general, technical and servicing information on T800 SL2 25W continuous base station which comprise
the following equipment:
T800 SL2 25W base
station
T855 receiver
T854 25W continuous transmitter
T803-02 tone remote (optional)
T800-23-0011 Power supply
Format
We have published this manual in a ring binder so that “revision
packages” containing additional information pertaining to new
issues of PCBs can be added as required.
PCB Information
PCB information is provided for all current issue PCBs, and is
grouped according to PCB. Thus, you will find the parts list,
grid reference index (if necessary), PCB layouts and circuit diagram(s) for each individual PCB grouped together.
Errors
If you find an error in this manual, or have a suggestion on how
it might be improved, please do not hesitate to contact Technical
Support, Tait Electronics Ltd, Christchurch, New Zealand (full
contact details are on page 2).
Updating Equipment and Manuals
In the interests of improving performance, reliability or servicing, Tait Electronics Ltd
reserve the right to update their equipment and/or manuals without prior notice.
Copyright
All information contained in this manual is the property of Tait Electronics Ltd. All
rights are reserved. This manual may not, in whole or part, be copied, photocopied,
reproduced, translated stored or reduced to any electronic medium or machine readable
form without prior written permission from Tait Electronics Ltd.
Ordering Tait Service Manuals
You can order additional copies of this service manual from your nearest Tait Dealer or
Customer Service Organisation. When ordering, make sure you quote the correct Tait
product code (“M” number). Note that only the latest issue of the manual will be available for order.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
4
M8SL2-00-002-812
Publication Information
T800 SL2 Service Manual
Publication Date
Product Code
June 2002
M8SL2-00-001-812
August 2004
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
1
5
T800 Product Codes
The T800 product code provides information about the model, type and options fitted,
according to the conventions described below
You can identify the unit’s type by checking the product code printed on a label on the
rear of the chassis (Figure 1.1 in Part A shows typical labels). You can further verify the
type by checking the placement of an SMD resistor in the table that is screen printed
onto the PCB..
© Copyright Tait Electronics Limited August 2004. All rights reserved.
6
2
M8SL2-00-002-812
T800 SL2 Product Range
The following table lists the range of standard T800 types (i.e. no options fitted) available at the time this manual was published. Consult your nearest Tait Dealer or Customer
Service Organisation for more information
T800 SL BSM Conventional Ordering Number System
System
Type
Frequency
Band
RF Output
Power
Channel
Spacing
Power
Supply
Coaxial
Relay /
Duplexer
18/11/02
Ancillary
Options
L A 1 W B 0 0
1
2
L = T800 SL BSM
(T800-56-X0XX)
3
4
1
7
A = 66 - 88 MHz (T82x-xx-02xx)
B = 136 - 156 MHz (T83x-1x-02xx)
C = 148 - 174 MHz (T83x-2x-02xx)
D = 400 - 440 MHz (T85x-1x-02xx)
E = 440 - 480 MHz (T85x-2x-02xx)
F = 480 - 520 MHz (T85x-3x-02xx)
P = 800 - 870 MHz (T88x-1x-02xx)
* Q = 860 - 910 MHz (T88x-2x-02xx)
R = 890 - 960 MHz (T88x-3x-02xx)
* = Not Available for US Market
1 = 25 Watts
4 = 5 Watts
*5 = 25 Watts (Cont)
2
6
6
No Ancillary Option
Multi-Channel Option (10 CH)
Cabinet Desktop 3U (Blk)
Cabinet Desktop 4U (Blk)
Cabinet Transportable 6U (Blk)
Tone Remote Module
0 = No Duplexer Fitted
1 = 50 Watt Duplexer Kit
2 = Coaxial Relay Kit
7
(T992-03-0002)
(T992-04-0002)
(T992-06-0002)
(T803-00-0000)
(T991-09-0001)+(T993-XX)
(T800-09-0002)
If Duplexer item code is set to (1), then Base/Repeater/
Slimline Requirement sheet must be completed. This is
required so correct Duplexer Frequency and Spacing can be
calculated.
T991-09-0001 is a 1U 19" Tray for Duplexer fitting.
3
* Only Available in Frequency
Bands
400-520Mhz
0=
4=
6=
7=
8=
9=
5
5
B = BSM Kit with Power Supply
D = BSM Kit with External DC
4
N = 12.5 kHz
M = 20 kHz
W = 25 kHz
(T800-56-X0X2)
(T800-56-X0X4)
© Copyright Tait Electronics Limited August 2004. All rights reserved.
7
M8SL2-00-002-812
Table of Contents
This manual is divided into nine parts as listed below, with each part being further subdivided into sections. There is a detailed table of contents at the start of each part and/
or section.
Part
Title
A
Introduction To Servicing
B
T855 Receiver
C
T854 Transmitter
D
T803-02-9000 Tone Remote
E
T850 VCO PCB Information
F
T800-23-0011 Power Supply
G
Installation and Configuration
H
T800 Ancillary Equipment
© Copyright Tait Electronics Limited August 2004. All rights reserved.
8
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
AI
M8SL2-00-002-812
Part A
Introduction To Servicing
This part of the manual is divided into the sections listed below. These sections provide
some general and advisory information on servicing procedures.
Section
1
Title
Page
General
1.1
1.1
Additional Technical Information
1.1
1.2
Caution: CMOS Devices
1.1
1.3
Caution: Aerial Load
1.2
1.4
Caution: Beryllium Oxide and Power Transistors
1.2
Mechanical
2.1
2.1
Torx Recess Head Screws
2.1
2.2
Pozidriv and Philips Recess Head Screws
2.2
2.3
2.3.1
Disassembly/Reassembly
Receivers/Transmitters
2.3
2.3
2.4
Cover Screw Torques
2.3
Component Replacement
3.1
3.1
3.1.1
3.1.2
Leaded Components
Desoldering Iron Method
Component Cutting Method
3.1
3.1
3.1
3.2
Surface Mount Devices
3.2
3.3
Cased Mica Capacitors
3.2
2
3
Figure
Title
Page
1.1
Typical Product Code and Serial Number Labels
1.1
1.2
Typical Anti-static Bench Set-up
1.2
2.1
Torx Screw Identification
2.1
2.2
Pozidriv and Philips Screw and Screwdriver Identification
2.2
© Copyright Tait Electronics Limited August 2004. All rights reserved.
AII
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
General
M8SL2-00-002-812
1
General
1.1
Additional Technical Information
A1.1
If you have any questions about this manual or the equipment it describes, please contact your nearest Tait Dealer or Customer Service Organisation. If necessary, you can get
additional technical help from Technical Support, Tait Electronics Ltd, Christchurch,
New Zealand (full contact details are on page 2).
When requesting information, please quote either the manual product code (e.g.
M8SL2-00-002-812), or the equipment product code, build revision number and serial
number which are printed on a label on the back of the product (as shown in Figure 1.1).
Figure 1.1 Typical Product Code and Serial Number Labels
If you require information about a particular PCB, please quote the full PCB internal
part number (IPN) which is screen printed onto the top side of the board (refer to the
appropriate PCB Information section in this manual for more details).
1.2
Caution: CMOS Devices
This equipment contains devices which are susceptible to damage from static charges.
You must handle these devices carefully and according to the procedures described in
the manufacturers’ data books.
We recommend you purchase an antistatic bench kit from a reputable manufacturer and
install and test it according to the manufacturer’s instructions. Figure 1.2 shows a typical antistatic bench set-up.
You can obtain further information on antistatic precautions and the dangers of electrostatic discharge (ESD) from standards such as ANSI/ESD S20.20-1999 or
BS EN 100015-4 1994.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
A1.2
General
M8SL2-00-002-812
conductive wrist strap
dissipative rubber
bench mat
Common point ground
(building ground or
mains ground via
1MΩ series resistor)
Figure 1.2 Typical Anti-static Bench Set-up
1.3
Caution: Aerial Load
The equipment has been designed to operate safely under a wide range of aerial loading
conditions. However, we strongly recommend that the transmitter should always be
operated with a suitable load to prevent damage to the transmitter output power stage.
1.4
Caution: Beryllium Oxide and Power Transistors
The RF power transistors in current use all contain some beryllium oxide. This substance, while perfectly harmless in its normal solid form, can become a severe health
hazard when it has been reduced to dust. For this reason the RF power transistors
should not be broken open, mutilated, filed, machined, or physically damaged in any
way that can produce dust particles.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Mechanical
M8SL2-00-002-812
2
Mechanical
2.1
Torx Recess Head Screws
A2.1
Torx recess head screws are becoming the standard screw head type in all T800 SL2
equipment, with Pozidriv and Philips recess head screws being used in fewer applications.
The Torx recess head has the advantage of improved screwdriver tip location, reducing
the chances of screw head damage caused by the driver tip rotating within the recess. In
addition, using a ball-tip Torx screwdriver allows you to drive a Torx head screw with
the driver on a slight angle, which can be useful in situations where access is restricted.
It is important that you use the correct Torx screwdriver tip:
M3 screws
M4 screws
T10
T20
Figure 2.1 below shows a typical Torx recess head screw (actual hardware may differ
slightly from this illustration due to variations in manufacturing techniques).
"star” shaped recess with
six internal notches
Figure 2.1 Torx Screw Identification
© Copyright Tait Electronics Limited August 2004. All rights reserved.
A2.2
Mechanical
2.2
Pozidriv and Philips Recess Head Screws
M8SL2-00-002-812
Pozidriv and Philips recess head screws will continue to be used in T800 SL2 equipment
in a few special applications. It is important that you use the correct type and size
screwdriver for each screw type to avoid damaging the screw head.
It is particularly important that you do not use Philips screwdrivers on Pozidriv screw
heads as the tapered driving flutes of the Philips screwdriver do not engage correctly
with the parallel-sided slots in the Pozidriv screw head. This can result in considerable
damage to the screw head if the screwdriver tip turns inside the recess.
Note:
If you find you need excessive downwards pressure to keep the screwdriver
tip in the Pozidriv screw head, you are probably using the wrong type and/
or size screwdriver.
Figure 2.2 below shows the main differences between typical Pozidriv and Philips screw
heads and screwdriver tips (actual hardware may differ slightly from these illustrations
due to variations in manufacturing techniques).
Pozidriv
Philips
internal notches
no special markings
"star" markings
between slots
slots with parallel sides
slots with tapered sides
driving flutes with
parallel sides
driving flutes with
tapered sides
ridges between
driving flutes
Figure 2.2 Pozidriv and Philips Screw and Screwdriver Identification
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Mechanical
M8SL2-00-002-812
2.3
Disassembly/Reassembly
2.3.1
Receivers/Transmitters
A2.3
To carry out alignment or change option links, you need to remove only the top cover,
i.e. the one on the opposite side to the main D-range connector (D-range 1/PL100).
You need to remove the bottom cover to:
• access transmitter RF power transistors and many SMD components
• change solder blob links
• fit test leads to circuit block access points.
2.4
Cover Screw Torques
Receivers/Transmitters
… 1.36Nm/12in.lbf.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
A2.4
Mechanical
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
Component Replacement
3
Component Replacement
3.1
Leaded Components
A3.1
Whenever you are doing any work on the PCB that involves removing or fitting components, you must take care not to damage the copper tracks. The two satisfactory methods of removing components from plated-through hole (PTH) PCBs are detailed below.
Note:
The first method requires the use of a desoldering station, e.g. Philips SBC
314 or Pace MBT-100E.
3.1.1
Desoldering Iron Method
Place the tip over the lead and, as the solder starts to melt, move the tip in a circular motion.
Start the suction and continue the movement until 3 or 4 circles have been completed.
Remove the tip while continuing suction to ensure that all solder is removed from
the joint, then stop the suction.
Before pulling the lead out, ensure it is not stuck to the plating.
If the lead is still not free, resolder the joint and try again.
Note:
The desoldering iron does not usually have enough heat to desolder leads
from the ground plane. Additional heat may be applied by holding a soldering iron on the tip of the desoldering iron (this may require some additional
help).
3.1.2
Component Cutting Method
Cut the leads on the component side of the PCB.
Heat the solder joint sufficiently to allow easy removal of the lead by drawing it
out from the component side: do not use undue force.
Fill the hole with solder and then clear with solderwick.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
A3.2
Component Replacement
3.2
Surface Mount Devices
Caution:
3.3
M8SL2-00-002-812
Surface mount devices (SMDs) require special storage, handling,
removal and replacement techniques. This equipment should be serviced only by an approved Tait Dealer or Customer Service Organisation equipped with the necessary facilities. Repairs attempted with
incorrect equipment or by untrained personnel may result in permanent damage. If in doubt, contact your nearest Tait Dealer or Customer
Service Organisation.
Cased Mica Capacitors
Cased mica capacitors can be removed by heating the top with a heavy-duty soldering
iron and gently lifting the capacitor off the PCB with a solder-resistant spike or equivalent.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
BI
M8SL2-00-002-812
Part B
T855 Receiver
This part of the manual is divided into six sections, as listed below. There is a detailed
table of contents at the start of each section.
Section
Title
1
General Information
2
Circuit Operation
3
Initial Tuning and Adjustment
4
Functional Testing
5
Fault Finding
6
PCB Information
© Copyright Tait Electronics Limited August 2004. All rights reserved.
BII
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 General Information
M8SL2-00-002-812
1
B1.1
T855 General Information
This section provides a brief description of the T855 receiver, along with detailed specifications.
The following topics are covered in this section.
Section
Title
Page
1.1
Introduction
1.5
1.2
Specifications
1.6
1.2.1
Introduction
1.6
1.2.2
General
1.7
1.2.3
RF Section
1.7
1.2.4
1.2.4.1
1.2.4.2
1.2.4.3
Audio Section
General
CTCSS
Mute Operation
1.9
1.9
1.9
1.10
1.2.5
Microprocessor Controller
1.10
1.2.6
1.2.6.1
1.2.6.2
1.2.6.3
Test Standards
European Telecommunication Standard (ETS)
DTI CEPT Recommendation T/R-24-01
Telecommunications Industry Association
1.10
1.10
1.11
1.11
Figure
Title
Page
1.1
T855 Main Circuit Block Identification
1.3
1.2
T855 Front Panel Controls
1.4
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B1.2
T855 General Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Key:
1
2
3
4
5
6
7
low pass filter
receiver front end
receiver IF
audio processor
VCO
regulators
synthesiser
4
3
Figure 1.1 T855 Main Circuit Block Identification
© Copyright Tait Electronics Limited August 2004. All rights reserved.
8
9
microcontroller and CTCSS
duct for cabling to extra D-range (if fitted)
D-range
RF input
D-range connector (“D-range 1”) incl. audio out and DC in
(refer to Section 1.5 in Part G)
microcontroller
7
C
6
A
10
B
1
T855 General Information
C
8
9
10
A
B
5
2
M8SL2-00-002-812
B1.3
B1.4
T855 General Information
M8SL2-00-002-812
Supply LED
Gating Sensitivity
Sets the RF signal level required
to open the mute gate and allow
audio to pass to the output.
Gate LED
The Supply LED is lit when DC
power is supplied to the receiver.
The Gate LED indicates the status of the mute circuit. The LED
is lit when a signal above the
mute threshold is received.
Monitor Volume
Adjusts the speaker volume if
a speaker is connected.
Monitor
Line Level
This switch opens the mute,
allowing continuous monitoring
of the audio signal:
Sets the audio output line level.
On
Off
audio unmuted
audio muted.
Figure 1.2 T855 Front Panel Controls
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
1.1
T855 General Information
B1.5
Introduction
The T855 is a high performance microprocessor controlled FM base station receiver
designed for single or multichannel operation in the 400 to 530MHz frequency range1.
The receiver is a dual conversion superhet with a synthesised local oscillator. The first IF
is 45.0MHz, allowing exceptionally high spurious signal rejection to be achieved in the
receiver front end. The second IF section (455kHz) combines amplitude limiting, detection and audio preamplification within a single integrated circuit. It also drives carrier
and noise level detectors for signal strength indication and gating the audio output.
RSSI can be used to drive a carrier mute for audio output gating (link selectable) when
the optional T800-04-0000 RSSI PCB is fitted.
The audio section output can be adjusted to deliver >+10dBm to a 600Ω balanced output, and 1W to a local monitor speaker. A flat or de-emphasised audio response is link
selectable.
The synthesiser frequency is programmed via the serial communications port. Eight
channel select lines are accessible via an additional D-range connector (D-range 2 –
T800-03-0000) at the rear of the set.
All components except those on the VCO board are mounted on a single PCB. This is
secured to a die-cast chassis which is divided into compartments to individually shield
each section of circuitry. Access to both sides of the main PCB is obtained by removing
each of the two chassis covers. There is provision within the chassis to mount small
option PCBs.
The front panel controls include gating sensitivity, line level, monitor volume and a
monitor mute switch.
1. Although capable of operating over the 400 to 530MHz frequency range, the T855 has a
5MHz switching range (see Section 1.2.3 and Section 3.1).
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B1.6
T855 General Information
1.2
Specifications
1.2.1
Introduction
M8SL2-00-002-812
The performance figures given are minimum figures, unless otherwise indicated, for
equipment tuned with the maximum switching range and operating at standard room
temperature (+22°C to +28°C) and standard test voltage (13.8VDC).
Where applicable, the test methods used to obtain the following performance figures
are those described in the EIA and ETS specifications. However, there are several
parameters for which performance according to the CEPT specification is given. Refer to
Section 1.2.6 for details of test standards.
Details of test methods and the conditions which apply for Type Approval testing in all
countries can be obtained from Tait Electronics Ltd.
The terms “wide bandwidth”, “mid bandwidth” and “narrow bandwidth” used in this
and following sections are defined in the following table.
Channel Spacing
Modulation
100% Deviation
Receiver
IF Bandwidth
Wide Bandwidth
25kHz
±5.0kHz
15.0kHz
Mid Bandwidth
20kHz
±4.0kHz
12.0kHz
12.5kHz
±2.5kHz
7.5kHz
Narrow Bandwidth
Sensitivity and distortion figures are stated for standard operating conditions which
includes audio de-emphasis. Note that the sensitivity and distortion figures will be
degraded when flat audio is selected.
Link PL210a
Link PL220a
De-emphasised Audio
1-2 (A-B)
2-3 (E-F)
Flat Audio
2-3 (B-C)
1-2 (D-E)
a. The letters in this column refer to the identification letters screen printed onto the PCB beside each set of links.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
1.2.2
T855 General Information
B1.7
General
Number Of Channels
… 128 (standard)1
Supply Voltage:
Operating Voltage
Standard Test Voltage
Polarity
Polarity Protection
… 10.8 to 16VDC
… 13.8VDC
… negative earth only
… crowbar diode
Supply Current:
Standby
Full Audio
Operating Temperature Range
1.2.3
… 350mA
… 800mA
… –20°C to +60°C
RF Section
Frequency Range
… 400 to 530MHz
Type
… dual conversion superheterodyne
Frequency Increment
… 5 or 6.25kHz
Switching Range
… 5MHz (i.e. ±2.5MHz from the centre
frequency)
Input Impedance
… 50Ω
Frequency Stability
… ±1ppm, –20°C to +60°C
Signal Strength Indicator
(RSSI optional)
… –115dBm to –70dBm, 0 to 5V
at approx. 10dB/V
1. Additional channels may be factory programmed. Contact your nearest Tait Dealer or
Customer Service Organisation.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B1.8
T855 General Information
M8SL2-00-002-812
IF Amplifiers:
Frequencies
Bandwidths
Narrow Bandwidth (NB)
Mid Bandwidth (MB)
Wide Bandwidth (WB)
… 45MHz and 455kHz
… 7.5kHz
… 12kHz
… 15kHz
Sensitivity (De-emphasised Response):
Single Channel
Bandspread (12dB Sinad)
… –117dBm
… –115dBm (across switching range)
Sensitivity (Flat Response):
Single Channel
Bandspread (12dB Sinad)
… –111dBm
… –109dBm (across switching range)
Signal+Noise To Noise Ratio (Typical):
De-emphasised
Flat
RF Level –107dBm
…
30dB (WB)
25dB (NB)
20dB (WB)
15dB (NB)
RF Level –83dBm (CEPT)
…
54dB (MB)
50dB (NB)
49dB (MB)
45dB (NB)
RF Level –57dBm (EIA)
…
55dB (WB)
55dB (WB)
Selectivity:
Narrow Bandwidth (±12.5kHz)
Mid Bandwidth (±20kHz)
Wide Bandwidth (±25kHz)
… 83dB minimum, 85dB typical (CEPT)
… 87dB minimum, 90dB typical (CEPT)
… 87dB minimum, 90dB typical (CEPT)
Offset Selectivity (Canada only)
… 20dB
Spurious Response Attenuation
… 100dB (typical)
Intermodulation Response Attenuation:
Narrow Bandwidth
Mid Bandwidth
Wide Bandwidth
… 80dB CEPT (typical)
… 75dB CEPT (typical)
… 85dB EIA (typical)
Blocking
… 100dB
Co-channel Rejection
… 6dB
Amplitude Characteristic
… 3dB
Spurious Emissions:
Conducted
Radiated
… –90dBm to 4GHz
… –57dBm to 1GHz
–47dBm to 4GHz
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 General Information
M8SL2-00-002-812
1.2.4
Audio Section
1.2.4.1
General
Outputs Available
… line and monitor
Frequency Response
… flat or de-emphasised (750µs)
(link selectable)
B1.9
Flat Response:
Bandwidth
Response
… 67 to 3400Hz
… within +1, –2dB of output level
at 1kHz
De-emphasised Response:
Bandwidth
Response
… 300 to 3400Hz
… within +1, –3dB of a –6dB/octave
de-emphasis characteristic (ref. 1kHz)
Line Output:
Power
Load Impedance
Distortion (at –70dBm signal level):
Wide Bandwidth
Mid and Narrow Bandwidth
… adjustable to >+10dBm
… 600Ω
De-emphasised
Flat
≤2%
≤2%
≤2%
≤4%
…
…
Monitor Output:
Power
… 1W
Speaker Impedance
… 4Ω
Distortion
… ≤3%
(at –70dBm signal level, links set to de-emphasis)
1.2.4.2
CTCSS
Linkable High Pass Filter:
Bandwidth
Response
Hum And Noise
(1kHz at 60% system deviation
CTCSS at 10% system deviation)
… 350 to 3400Hz
… within +1, –3dB of level at 1kHz
… 30dB min. at 250.3Hz
35dB typical (67 to 240Hz)
Tone Detect:
Tone Squelch Opening
… better than 6dB sinad
3dB sinad at 250.3Hz (typical)
4dB sinad at 100Hz (typical)
Tone Detect Bandwidth
… ±2.1Hz accept (typical)
±3.0Hz reject (typical)
Response Time
… 150ms open and close (typical)
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B1.10
T855 General Information
1.2.4.3
Mute Operation
Systems Available
M8SL2-00-002-812
… noise mute and carrier mute
Noise Mute:
Operating Range
Hysteresis
Threshold
Opening Time
Closing Time
… 6 to 20dB sinad
… 1.5 to 6dB
… adjustable to –105dBm
… 20ms
… 50ms
Carrier Mute (Optional):
Operating Range
Hysteresis
Opening Time
Closing Time
…
…
…
…
–115 to –80dBm
2 to 10dB
5ms
50ms
Note:
The opening and closing times given above are for the standard setup
(SL210 linked and SL220 not linked. Refer to Section 3.8).
1.2.5
Microprocessor Controller
Auxiliary Ports:
Open Drain Type
Vds max.
1.2.6
… capable of sinking 2.25mA via 2k2Ω
… 5V
Test Standards
Where applicable, this equipment is tested in accordance with the following standards.
1.2.6.1
European Telecommunication Standard
ETS 300 086 January 1991
Radio equipment and systems; land mobile service; technical characteristics and test
conditions for radio equipment with an internal or external RF connector intended primarily for analogue speech.
ETS 300 113 March 1996
Radio equipment and systems; land mobile service; technical characteristics and test
conditions for radio equipment intended for the transmission of data (and speech) and
having an antenna connector.
ETS 300 219 October 1993
Radio equipment and systems; land mobile service; technical characteristics and test
conditions for radio equipment transmitting signals to initiate a specific response in the
receiver.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
T855 General Information
B1.11
ETS 300 279 February 1996
Radio equipment and systems; electromagnetic compatibility (EMC) standard for private land mobile radio (PMR) and ancillary equipment (speech and/or non-speech).
1.2.6.2
DTI CEPT Recommendation T/R-24-01
Annex I: 1988
Technical characteristics and test conditions for radio equipment in the land mobile
service intended primarily for analogue speech.
Annex II: 1988
Technical characteristics of radio equipment in the land mobile service with regard to
quality and stability of transmission.
1.2.6.3
Telecommunications Industry Association
ANSI/TIA/EIA-603-1992
Land mobile FM or PM communications equipment measurement and performance
standards.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B1.12
T855 General Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 Circuit Operation
M8SL2-00-002-812
2
B2.1
T855 Circuit Operation
This section provides a basic description of the circuit operation of the T855 receiver.
Unless otherwise specified, the term “PGM800Win” used in this and following sections refers to version 4.02 and later of the software.
Note:
Refer to Section 6 where the parts lists, grid reference index and diagrams will provide
detailed information on identifying and locating components and test points on the
main PCB. The parts list and diagrams for the VCO PCB are in Part E.
The following topics are covered in this section.
Section
Title
Page
2.1
Introduction
2.3
2.2
Receiver Front End
2.4
2.3
Mixer
2.5
2.4
IF Circuitry
2.5
2.5
Noise Mute (Squelch)
2.6
2.6
Carrier Mute
2.6
2.7
Audio Processor
2.7
2.8
Power Supply And Regulators
2.8
2.9
Microcontroller
2.9
2.10
Synthesised Local Oscillator
2.10
2.11
VCO
2.11
2.12
Received Signal Strength Indicator (RSSI)
2.12
Figure
Title
Page
2.1
T855 High Level Block Diagram
2.3
2.2
T855 Front End, IF and Mute Block Diagram
2.4
2.3
T855 Audio Processor Block Diagram
2.7
2.4
T855 Power Supply And Regulators Block Diagram
2.8
2.5
T855 Microcontroller Block Diagram
2.9
2.6
T855 Synthesiser Block Diagram
2.10
2.7
T855 RSSI Block Diagram (T800-04-0000 RSSI PCB)
2.12
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B2.2
T855 Circuit Operation
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 Circuit Operation
M8SL2-00-002-812
2.1
B2.3
Introduction
Noise
Mute
Mixer
Front
End
Mixer
45MHz
IF
Limiter
Speaker
Audio
Processor
455kHz
IF
FM
Detector
Synthesised
Local
Oscillator
Second
Local
Oscillator
12.8MHz
Master
Oscillator
} 600Ω
Line
Carrier
Mute
RSSI
Figure 2.1 T855 High Level Block Diagram
The T855 receiver consists of a number of distinct stages:
• front end
• mixer
• synthesised local oscillator
• IF
• audio processor
• mute (squelch)
• regulator circuits
• received signal strength indicator (RSSI).
These stages are clearly identifiable in Figure 2.1. Refer to the circuit diagrams in Section
6 for further detail.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B2.4
T855 Circuit Operation
2.2
Receiver Front End
M8SL2-00-002-812
(Refer to the front end, IF section and audio processor circuit diagrams (sheets 4, 3 and 2
respectively) in Section 6.3.)
Local Oscillator
(From Synthesiser)
RF In
400-530MHz
4dB Pad
Harmonic Helical
Filter
Filter
RF
Amp
Helical
Filter
2dB
Pad
Post
Mixer
Amp
Diplexer
IF
Amp
Mixer Ceramic
(MC3361) Filter
Limiter
(MC3361)
IF
Amp
45MHz
Mixer
2-Pole
Crystal
Filter
4-Pole
Crystal
Filter
FM
Detector
(MC3361)
Low
Pass
Filter
Audio
(To Audio
Processor)
45MHz
455kHz
Buffer
Amp
2nd LO
44.545MHz
RSSI Output
Voltage
(To D-Range
Connector)
RSSI
Comparator
Buffer
Amp
Link: Carrier Mute
Mute
Adjust
Noise Mute
Active
Filter
LF
Amp
Diode
Detector
Comparator
Rx Gate Out
(To Audio
Processor)
∆t
Gain
Adjust
Smoothing
Filter
Gating
Delays
Comparator
Mute
Adjust
Audio Section
Figure 2.2 T855 Front End, IF and Mute Block Diagram
The incoming signal from the N-type antenna socket is fed through a 9-pole, low pass
filter with a cut frequency of approximately 600MHz. This low loss filter (typically less
than 0.5dB over 400 to 530MHz) provides excellent immunity to interference from high
frequency signals.
The signal is then further filtered, using a high performance helical resonator doublet
(FL410) which provides exceptional image rejection, before being amplified by approximately 8dB (Q410). The signal is then passed through a further helical filter doublet
(FL420) before being presented to the mixer via a 2dB attenuator pad.
Each sub-block within the front end has been designed with 50Ω terminations for ease
of testing and fault finding. The overall gain from the antenna socket to the mixer input
is approximately 2dB.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
2.3
T855 Circuit Operation
B2.5
Mixer
(Refer to the front end circuit diagram (sheet 4) in Section 6.3 and Figure 2.2.)
IC410 is a high level mixer requiring a local oscillator (LO) drive level of +17dBm (nominal). The voltage controlled oscillator (VCO) generates a level of +21dBm (typical) and
this is fed to the mixer via a 5dB attenuator pad. A diplexer terminates the IF port of the
mixer in a good 50Ω, thus preventing unnecessary intermodulation distortion.
2.4
IF Circuitry
(Refer to the IF section circuit diagram (sheet 3) in Section 6.3 and Figure 2.2.)
Losses in the mixer are made up for in a tuned, common gate, post mixer amplifier
(Q310). Several stages of amplification and filtering are employed in the IF circuitry. The
first crystal filter is a 4-pole device (&XF300) which is matched into 50Ω on both its
input and output ports. This stage is followed by a common base amplifier (Q320)
whose output is matched into a 2-pole crystal filter (&XF301). The signal is then amplified using a high gain MOSFET amplifier (Q350), after which the signal is mixed down
to 455kHz with the second crystal local oscillator (44.5455MHz).
The 455kHz signal is filtered using a 6-pole ceramic filter (&XF302) before being limited
and detected. Q340 provides a buffered 455kHz output for use with the optional RF
level detector (RSSI)
The second IF mixer, limiter and detector is in a 16-pin IC (IC310). Quadrature detection
is employed, using L390, and the recovered audio on pin 9 of IC310 is typically 1Vpp for
60% system deviation.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B2.6
T855 Circuit Operation
2.5
Noise Mute (Squelch)
M8SL2-00-002-812
(Refer to the audio processor and IF section circuit diagrams (sheets 2 and 3 respectively) in Section 6.3 and Figure 2.2.)
The noise mute operates on the detected noise outside the audio bandwidth. An operational amplifier in IC310 is used as an active band pass filter centred on 70kHz to filter
out audio components. The noise spectrum is then further amplified in a variable gain,
two-stage amplifier (Q350 and Q360) with additional filtering. The noise is then rectified (D310) and filtered to produce a DC voltage proportional to the noise amplitude.
The lowest average DC voltage corresponds to a high RF signal strength and the highest
DC voltage corresponds to no signal at the RF input.
The rectified noise voltage is compared with a threshold voltage set up on RV230, the
front panel “Gating Sensitivity” potentiometer. Hysteresis is provided by the feedback
resistor (R267) to prevent the received message from being chopped when the average
noise voltage is close to the threshold. R281 and R280 determine the mute opening and
closing times and, in combination with solder links SL210 and SL220, provide three time
delay options (SL210 is linked as standard. Refer to Section 3.8). The mute control signal
at pin 7 of IC270 is used to disable the speaker and line audio outputs. The speaker output can be separately enabled for test purposes by operating the front panel mute disable switch, SW201.
2.6
Carrier Mute
(Refer to the audio processor and IF section circuit diagrams (sheets 2 and 3 respectively) in Section 6.3 and Figure 2.2.)
A high level carrier mute facility is also available. The RSSI (refer to Section 2.12) provides a DC voltage proportional to the signal strength. This voltage is compared with a
preset level, set up on RV235, and may be linked into the mute timing circuit using
PL250. PL250 selects either the noise mute or the carrier mute. From this point both the
noise and carrier mute circuits operate in the same manner, using common circuitry.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 Circuit Operation
M8SL2-00-002-812
2.7
B2.7
Audio Processor
(Refer to the audio processor circuit diagram (sheet 2) in Section 6.3.)
From
IF Stage
RSSI
RSSI Output
(Optional)
PL270
Carrier
Mute
Noise
Mute
3
2
1
2
Demodulated
Signal
(*IF Audio
Compensation
Circuit)
Rx Disable
Timer
Mute Disable
LPF
1
2
3
PL220
High Pass
Filter
1
2
3
4
5
Driver Amp
Speaker
Mute
Driver Amp
PL240
Line
Level
Rx Disable
(Optional Pad)
1
Monitor
Volume
Flat/Deemphasis
Amplifier
Mute Relay
Gate Output
PL260
Flat/Deemphasis PL210
2
*IF
3
Comp
12V
Relay
1
2
PL250
Line
Mute
1
2
3
Speaker Output
Line Output
Line Monitor
PL230
Audio 1
Output
Audio 2
Input
Speech
Figure 2.3 T855 Audio Processor Block Diagram
The recovered audio on pin 9 of IC310 is passed through a compensation network and
processed in a third order elliptic active filter to give the required response. Linking
(PL220 and PL210) is available to give either a flat or de-emphasised audio response,
with de-emphasis giving a –6dB/octave roll off. The output of IC210 is split to provide
separate paths for the speaker and line outputs. The “Audio 1”, Audio 2” and “Speech”
lines allow access to the receiver’s audio path for external signalling purposes (refer to
Section 3.5).
The signals are passed to audio drive amplifiers IC240 and IC260. Under muted conditions the inputs of these amplifiers are shunted to ground via transistors Q230 and Q290
respectively. The audio output of IC240 has a DC component which is removed by C249,
and this then drives a speaker directly. The output of IC260 is fed into a line transformer
to provide a balanced 2-wire or 4-wire, 600Ω output.
The speaker volume is set using the front panel “Monitor Volume” knob (RV205) and
the line level is set using the recessed “Line Level” potentiometer (RV210).
The red front panel “Gate” LED (D250) indicates the status of the mute circuit. When a
signal above the mute threshold is received, the LED is illuminated. The “Monitor”
switch (SW201) on the front panel opens the mute, allowing continuous monitoring of
the audio signal (on = audio unmuted; off = audio muted).
The mute control line is available on pad 234 ("RX GATE OUT") for control of external
circuitry. A high (9V) on pad 234 indicates that the audio is disabled and a low (0V) indicates that a signal above the mute threshold level is being received.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B2.8
T855 Circuit Operation
M8SL2-00-002-812
The audio can also be disabled using the “RX-DISABLE” inputs, pads 225 or 228, having
connected the “RX-DISABLE” link between pins 1 and 2 of PL260. An adjustable time
delay (RV220) is provided on these lines. In order to disable the audio, either pad must
be pulled to 0V.
An undedicated relay is provided (RL210) for transmitter keying or other functions and
this can be operated from the mute line by linking PL270.
2.8
Power Supply And Regulators
(Refer to the regulators circuit diagram (sheet 6) in Section 6.3.)
13.8V Nom.
From Rear
D-Range 1
DC
Amp
5V
Reg
Crowbar
Diode
13.8V
Nom.
5V
5V Dig
Reg
Switching
PS
9V
20V
LVI
µP
Reset
5V Dig
Figure 2.4 T855 Power Supply And Regulators Block Diagram
The T855 is designed to operate off a 10.8 to 16VDC supply (13.8V nominal). A 5.3V regulator (IC630) runs directly from the 13.8V rail, driving much of the synthesiser circuitry. It is also used as the reference for a DC amplifier (IC640, Q630 and Q620) which
provides a medium current capability 9V supply.
A switching power supply, based on Q670 and Q660, runs off the 9V supply and provides a low current capability +20V supply. This is used to drive the synthesiser loop filter (IC740), giving a VCO control voltage of up to 20V.
The 13.8V supply drives both output audio amplifiers without additional regulation. A
separate 5V regulator (IC610) drives the microprocessor and associated digital circuitry.
The output of this regulator is monitored by the Low Voltage Interrupt (LVI) circuit
(IC650).
A crowbar diode is fitted for protection against connection to a power supply of incorrect polarity. It also provides transient overvoltage protection.
Note:
A fuse must be fitted in the power supply line for the diode to provide effective protection.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 Circuit Operation
M8SL2-00-002-812
2.9
B2.9
Microcontroller
(Refer to the microcontroller circuit diagram (sheet 8) in Section 6.3.)
5V Digital
Regulator
5V
Watchdog Timer
& LVI
Reset
Watchdog
Microcontroller Cavity
12.8MHz
Clock
External
Serial
Port
Microcontroller
Channel
Select
Port
Auxiliary
Output
Port
Converter
Audio In
CTCSS
Decoder
Speech
EEPROM
Synthesiser
Figure 2.5 T855 Microcontroller Block Diagram
Overall system control of the T855 is accomplished by the use of a member of the 80C51
family of microcontrollers (IC810) which runs from internal ROM and RAM. Four ports
are available for input/output functions.
Non-volatile data storage is achieved by serial communication with a 16kBit EEPROM
(IC820). This serial bus is also used by the microcontroller to program the synthesiser
(IC740).
The main tasks of the microcontroller are as follows:
• program the synthesiser;
• interface with the PGM800Win programming software at 9600 baud via the
serial communication lines on D-range 1 (PL100) and D-range 2;
• monitor channel change inputs from D-range 2;
• generate timing waveforms for CTCSS detection;
• coordinate and implement timing control of the receiver;
• control the front panel “Supply” LED (refer to Section 5.3).
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B2.10
T855 Circuit Operation
2.10
Synthesised Local Oscillator
M8SL2-00-002-812
(Refer to the synthesiser circuit diagram (sheet 7) in Section 6.3 and the VCO circuit diagram in Part E.)
FREQUENCY SYNTHESISER IC
Reference
Divider
12.8MHz
Reference
Oscillator
Serial
Bus
f ref
Clk
Data
En
Phase
Detector
VCO PCB
Charge
Pump
Loop
Filter
VCO
Buffer
Output
Buffer
+22dBm
L.O.
/R
Programmable
Divider
Prescaler
/N
64/65
fin
Buffer
Controller
Figure 2.6 T855 Synthesiser Block Diagram
The synthesiser (IC740) employs a phase-locked loop (PLL) to lock a voltage controlled
oscillator (VCO) to a given reference frequency. The synthesiser receives the divider
information from the control microprocessor via a 3-wire serial bus (clock, data, enable).
When the data has been latched in, the synthesiser processes the incoming signals from
the VCO buffer (fin) and the reference oscillator (fref).
A reference oscillator at 12.8MHz (IC700) is buffered (IC710) and divided down to
6.25kHz or 5kHz within the synthesiser IC (IC740).
A buffered output of the VCO is divided with a prescaler and programmable divider
which is incorporated into the synthesiser chip (IC740). This signal is compared with the
reference signal at the phase detector (also part of the synthesiser chip). The phase
detector outputs drive a balanced charge pump circuit (Q760, Q770, Q775, Q780, Q785)
and active loop filter (IC750, Q790) which produces a DC voltage between 0V and 20V
to tune the VCO. This VCO control line is further filtered to attenuate noise and other
spurious signals. Note that the VCO frequency increases with increasing control voltage.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
2.11
T855 Circuit Operation
B2.11
VCO
(Refer to the VCO circuit diagram in Part E.)
The VCO transistor (Q1) operates in a common emitter, and uses a transmission line resonator (TL1). The transmission line is used in a two port configuration with varicaps
positioned at one end. The VCO control voltage from the loop filter (IC750) is applied to
the varicaps (D1 and D2) to facilitate tuning. The VCO output is coupled into a cascode
amplifier stage (Q2 and Q3) which supplies +10dBm (nominal) output. Further amplification in Q5 brings the output drive level to +20dBm to drive the mixer.
A low level “sniff” is taken from the input to Q5 to drive the divider buffer to the synthesiser (IC740).
The VCO operates at the actual frequency required by the first mixer, i.e. there are no
multiplier stages.
The VCO frequency spans from 355 to 395MHz, 395 to 435MHz or 435 to 485MHz
according to product type. The VCO is tuned to 45MHz below the desired receive frequency (low side injection) to produce a 45MHz IF signal at the output of the mixer.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B2.12
T855 Circuit Operation
2.12
Received Signal Strength Indicator (RSSI)
M8SL2-00-002-812
(Refer to the T800-04-0000 RSSI PCB circuit diagram in Section 6.2 and the IF section circuit diagram (sheet 3) in Section 6.3.)
The RSSI option PCB plugs directly into the main PCB (support circuitry being fitted as
standard). It is fitted to the T855 whenever receiver signal strength monitoring is
required, e.g. trunking or voting. Its function is to provide a DC voltage proportional to
the signal level at the receiver input. The DC voltage is available at D-range 1 (PL100
pin 5).
The RSSI also provides the capability for high level signal strength muting, which may
be selected on PL250 (refer to Section 3.5). The mute threshold may be set between
–115dBm and –70dBm by RV235.
+V
RSSI
Input
Amp
Detector
Q1C
Q1A &
Q1B
Variable
Gain Stage
Q1E
Error Amp
VDC
Temp Comp
Temp
Comp
Q1D
RSSI Output
1V/10dB
DC Amp
(Gain= x33)
NTC
DC Offset
(Ref)
Figure 2.7 T855 RSSI Block Diagram (T800-04-0000 RSSI PCB)
The variable gain stage (Q1A) is a common emitter amplifier with its emitter grounded
and the AGC control loop voltage applied to its base. Since the AGC loop will maintain
a constant signal level at the collector, the gain of Q1 must be proportional to the incoming 455kHz signal level. The gain of Q1 is linearly proportional to its collector current
which itself is exponentially related to the base-emitter voltage. Thus there is a logarithmic relationship between the base-emitter voltage and the gain. The circuit therefore
produces a feedback voltage, and an output voltage, logarithmically related to the RF
input signal.
The AGC loop is followed by a DC amplifier which provides level shifting, temperature
compensation and gain to give a nominal 1V/10dB at the RSSI output. RV320 on the
main PCB is used to set the RSSI voltage to a fixed value at a given RF input signal
strength.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 Initial Tuning and Adjustment
M8SL2-00-002-812
3
B3.1
T855 Initial Tuning and Adjustment
Caution:
This equipment contains CMOS devices which are susceptible to damage from static charges. Refer to Section 1.2 in Part A for more information on anti-static procedures when handling these devices.
The following section describes both short and full tuning and adjustment procedures
and provides information on:
• channel programming
• selecting the required audio links
• synthesiser alignment
• receiver front end and IF alignment
• noise and carrier level mute adjustment
• setting the line and monitor output levels
• setting up the RSSI.
Unless otherwise specified, the term “PGM800Win” used in this and following sections refers to version 4.02 and later of the software.
Note:
Refer to Figure 4.3 which shows the location of the main tuning and adjustment controls. Refer also to Section 6 where the parts lists, grid reference index and diagrams will
provide detailed information on identifying and locating components and test points on
the main PCB. The parts list and diagrams for the VCO PCB are in Part E.
Section
Title
Page
3.1
Introduction
3.3
3.2
Channel Programming
3.3
3.3
Test Equipment Required
3.4
3.4
Short Tuning Procedure
3.5
3.4.1
Introduction
3.5
3.4.2
Synthesiser Alignment
3.5
3.4.3
Front End Alignment
3.5
3.4.4
3.4.4.1
3.4.4.2
Mute Adjustment
Noise Mute
Carrier Level Mute
3.6
3.6
3.6
3.4.5
Line Amplifier Output
3.6
3.4.6
3.4.6.1
3.4.6.2
3.4.6.3
CTCSS
Decoder Operation
Opening Sinad
High Pass Filter
3.7
3.7
3.7
3.7
3.4.7
RSSI (If Fitted)
3.8
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B3.2
T855 Initial Tuning and Adjustment
Section
3.5
M8SL2-00-002-812
Title
Page
Audio Processor Links
3.8
3.5.1
General
3.8
3.5.2
Audio Processor Linking Details For CTCSS
3.9
3.6
Synthesiser Alignment
3.10
3.7
Alignment Of Receiver Front End And IF
3.10
3.8
Gating Delay
3.12
3.9
Noise Mute Adjustment
3.12
3.10
Carrier Level Mute
3.12
3.11
Audio Processor
3.13
3.11.1
Line Amplifier Output
3.13
3.11.2
Monitor Amplifier Output (Speaker Output)
3.13
CTCSS
3.13
3.12.1
Decoder Operation
3.13
3.12.2
Opening Sinad
3.13
3.12.3
High Pass Filter
3.14
RSSI
3.14
3.12
3.13
Figure
Title
Page
3.1
T855 Test Equipment Set-up For Short Tuning Procedure
3.4
3.2
T855 Test Equipment Set-up For Full Tuning and Adjustment
Procedure
3.4
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
3.1
T855 Initial Tuning and Adjustment
B3.3
Introduction
When you receive your T855 receiver it will be run up and working on a particular frequency (the “default channel")1. If you want to switch to a frequency that is within the
5MHz switching range (i.e. ±2.5MHz from the factory programmed frequency), you
should only need to reprogram the receiver with the PGM800Win software (refer to the
PGM800Win programming kit and Section 3.2 below).
However, if you want to switch to a frequency outside the 5MHz switching range, you
will have to reprogram and re-tune the receiver to ensure correct operation. In this case
you should carry out the short tuning procedure described in Section 3.4.
If you have carried out repairs or other major adjustments, you must carry out the full
tuning and adjustment procedure described in this section (except for Section 3.4).
3.2
Channel Programming
You can program up to 128 channel frequencies into the receiver’s EEPROM memory
(IC820) by using the PGM800Win software package and a PC. You can also use
PGM800Win to select the receiver’s current operating frequency (or “default channel").
You can program the receiver via the programming port in the front panel. However,
you can also program the receiver before it is installed in a rack frame as follows:
• by using a T800-01-0010 calibration test unit;
• via D-range 1;
• via D-range 2 (standard T800-03-0000 auxiliary D-range only);
• via SK805 (internal Micromatch connector).
If you do not use the T800-01-0010, you will have to connect the PC to the receiver via a
module programming interface (such as the T800-01-0004).
For a full description of the channel programming procedure, refer to the PGM800Win
programming software user’s manual.
Note:
When an auxiliary D-range kit (D-range 2 – T800-03-0000) is fitted, you can
also select a channel with an external switch, such as the DIP switch on a
backplane PCB. Consult your nearest Tait Dealer or Customer Service
Organisation for further details.
1. Use the “Read Module” function in PGM800Win to find out what the default channel
is.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B3.4
T855 Initial Tuning and Adjustment
3.3
Test Equipment Required
M8SL2-00-002-812
You will need the following test equipment:
• computer with PGM800Win installed
• T800 programming kit
• module programming interface (e.g. T800-01-0004 – optional)
• 13.8V power supply
• digital multimeter
• audio signal generator
• RF signal generator
or RF test set (optional)
• audio voltmeter
• sinad meter
• oscilloscope
not needed for short tuning procedure
• distortion meter
• T800-01-0010 calibration test unit (optional)
• 4Ω speaker (not needed if the calibration test unit is used)
Figure 3.1 and Figure 3.2 show
typical test equipment set-ups
(with and without a T800-01-0010
calibration test unit).
RF Signal
Generator
RF In
Receiver
External
Modulation
Sinad
Meter
Audio Signal
Generator
Audio
Voltmeter
Line
T800
Calibration
Test Unit
Line
PGM800Win
+13.8V
PSU
-Ve
Figure 3.1 T855 Test Equipment Set-up For Short Tuning Procedure
Distortion
Meter
+13.8V
Sinad
Meter
Audio
Voltmeter Oscilloscope
PSU
RF Signal
Generator
Receiver
External
Modulation
Line
600Ω
GND Speaker
Output
GND
Line
RF In
CH2
CH1
-Ve
Probe
Audio Signal
Generator
Serial
Com
via module programming interface
(e.g. T800-01-0004)
4Ω Speaker
(Or 4Ω Resistor)
PGM800Win
Figure 3.2 T855 Test Equipment Set-up For Full Tuning and Adjustment Procedure
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 Initial Tuning and Adjustment
M8SL2-00-002-812
3.4
B3.5
Short Tuning Procedure
Use this procedure only if you want to reprogram the receiver to a frequency outside the
5MHz switching range and do not intend to carry out any other major adjustments or
repairs.
3.4.1
Introduction
Reprogram the operating frequency as described in the PGM800Win programming kit (refer to Section 3.2).
Remove the top cover.
Set up the test equipment as described in Section 3.3.
Set the links in the audio processor section as required (refer to Section 3.5).
3.4.2
Synthesiser Alignment
•
Connect a high impedance voltmeter to the long lead of L1 in the VCO (this measures the synthesiser loop voltage).
•
Single Channel
Tune VCO trimmer C6 for a synthesiser loop voltage of
10V.
Multichannel
Tune VCO trimmer C6 for a synthesiser loop voltage of
10V on the middle channel.
If there is no middle channel, tune C6 so that the channels
are symmetrically placed around a loop voltage of 10V.
All channels should lie within the upper and lower limits
of 16V and 3V respectively.
Do not attempt to program channels with a greater frequency separation than the specified switching range of
5MHz.
3.4.3
Front End Alignment
Note 1:
In this and following sections deviation settings are given first for wide
bandwidth sets, followed by settings in brackets for mid bandwidth sets ( )
and narrow bandwidth sets [ ].
Note 2:
For multichannel operation align the receiver on a frequency in the middle
of the required band.
Set RV230 (front panel gating sensitivity) fully clockwise.
Inject a strong on-channel RF signal with ±3kHz deviation (±2.4kHz) [±1.5kHz] at
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B3.6
T855 Initial Tuning and Adjustment
M8SL2-00-002-812
1kHz into the antenna socket and adjust the helical resonators #FL410 and #FL420
to give best sinad.
Continually decrease the RF level to maintain 12dB sinad.
Readjust FL410 and FL420 to give best sinad.
With PL210 and PL220 connected for de-emphasised audio response, the receiver
sensitivity should be better than –117dBm, assuming that the audio levels are not
being overdriven (refer to Section 3.4.5).
3.4.4
Mute Adjustment
3.4.4.1
Noise Mute
Connect pins 1 and 2 of PL250 to enable the noise mute.
Set the RF level to –105dBm with ±3kHz deviation (±2.4kHz) [±1.5kHz] at 1kHz.
Set RV230 (front panel gating sensitivity) fully anticlockwise.
Adjust RV310 (noise mute gain) fully clockwise to close the mute (if necessary
turn off the RF signal and then turn it on again).
Rotate RV310 anticlockwise until the mute just opens.
Reset the signal generator for the required opening sinad and adjust RV230 clockwise until the mute just opens.
3.4.4.2
Carrier Level Mute
Connect pins 2 and 3 of PL250 to enable the carrier mute and disable the noise
mute.
Apply an on-channel signal from the RF generator at the required mute opening
level with ±3kHz deviation (±2.4kHz) [±1.5kHz] at ±1kHz.
Adjust RV235 (carrier mute) anticlockwise to close the mute (if necessary, momentarily turn off the RF), then slowly adjust it clockwise until the mute just opens.
The mute should now open at this preset level.
3.4.5
Line Amplifier Output
Apply an on-channel signal from the RF generator at a level of –70dBm with
±3kHz deviation (±2.4kHz) [±1.5kHz] at 1kHz.
Adjust RV210 (front panel line level) to set the line level to the required output
level.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 Initial Tuning and Adjustment
M8SL2-00-002-812
3.4.6
CTCSS
3.4.6.1
Decoder Operation
B3.7
Program a CTCSS tone on the default channel using PGM800Win.
Set the RF signal generator output to –70dBm.
Modulate the generator with both:
• a 1kHz tone at ±3kHz deviation (±2.4kHz) [±1.5kHz]
• and a CTCSS tone at the programmed frequency at ±500Hz deviation (±400Hz)
[±300Hz].
Check that the receiver gate opens and the front panel “Gate” LED is on.
3.4.6.2
Opening Sinad
Adjust RV230 (front panel gating sensitivity) fully clockwise.
Reduce the RF signal level to –110dBm.
Observe the sinad meter and reduce the RF level until the receiver mute closes.
Slowly increase the signal level until the receiver mute just opens and stays open.
With PL240 pins 1 and 2 linked (G–H; high pass filter bypassed), check that the
sinad is less than 6dB.
Reset the signal generator for the required opening sinad, adjust RV230 fully anticlockwise, then clockwise until the mute just opens.
3.4.6.3
High Pass Filter
Set the audio processor links as follows:
Plug
Link
Function
PL210
1–2
A–B
de-emphasised response
PL230
2–3
N–P
audio from internal CTCSS speech filter
PL240
4–5
K–L
audio input via PL230 or I/O pad
Reset the RF signal generator output to –70dBm and note the line level (measurement A).
Reduce the 1kHz generator to zero output and measure the line level again (measurement B).
Check that measurement B is at least 30dB below measurement A.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B3.8
T855 Initial Tuning and Adjustment
3.4.7
RSSI (If Fitted)
M8SL2-00-002-812
The T800-04-0000 RSSI is an optional PCB which adds signal strength monitoring and
high level mute facilities to the basic receiver.
Ensure the T800-04-0000 PCB is fitted in SK320 and SK330 in the IF compartment.
Apply an on-channel signal from the RF generator at a level of –110dBm with
±3kHz deviation (±2.4kHz) [±1.5kHz] at 1kHz.
Adjust RV320 (RSSI level) to give 2.0V RSSI output on pin 5 of D-range 1 (PL100)
when measured with a high impedance DMM.
3.5
Audio Processor Links
3.5.1
General
Use the following table to set up the audio processor to the configuration you require.
You should set the audio processor links before carrying out the receiver alignment. The
factory settings are shown in brackets [ ].
Linka
Plug
Function
PL210
[1 – 2]
2–3
[A – B]
B–C
de-emphasised response
flat response
PL220
1–2
[2 – 3]
D–E
[E – F]
flat response
de-emphasised response
PL230b
1–2
[2 – 3]
3–4
M–N
[N – P]
P–Q
audio input via AUDIO-2 pad
audio from internal CTCSS speech filter
audio input via I/O pad P250
1–2
G–H
bypass high pass filter
[2 – 3]
or
3–4
[H – J]
or
J–K
300Hz high pass filter in circuit
4–5
K–L
audio input via PL230 or I/O pad
PL250
[1 – 2]
2–3
[R – S]
S–T
noise mute
carrier mute
PL260
1–2
[2 – 3]
U–V
[V – W]
RX-DISABLE link
not connected
PL270
[1 – 2]
2–3
[X – Y]
Y–Z
relay link
not connected
PL240b
a. The letters in this column and in the table in Section 3.5.2 below refer to the identification
letters screen printed onto the PCB beside each set of pins.
b. Refer to Section 3.5.2 for further details.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
3.5.2
T855 Initial Tuning and Adjustment
B3.9
Audio Processor Linking Details For CTCSS
You must connect the audio processor links correctly according to the CTCSS option
used, as shown in the table below.
CTCSS Option
PL230
PL240
standard, no CTCSS
2–3
N–P
2–3
H–J
received CTCSS + speech
passed to line output
3–4
P–Q
1–2
G–H
high pass filtered speech,
internal CTCSS detection
2–3
N–P
4–5
K–L
external CTCSS detection
1–2
M–N
4–5
K–L
The conditions stated in the above table are defined as follows:
•
standard, no CTCSS
– no CTCSS or other sub-audio signalling used
– audio bandwidth 300Hz to 3kHz
– hum and noise –55dB
•
received CTCSS tone
+ speech to line output
– tone and speech transmitted down 600Ω line
– audio bandwidth 10Hz to 3kHz
– hum and noise –45dB
•
high pass filtered speech
– 400Hz to 3kHz
+ internal CTCSS detection – hum and noise –30dB with 250.3Hz tone present
•
external CTCSS detection
– decoding performed through the receiver (but
externally)
– speech injected back into receiver via “AUDIO-2"
and sent down 600Ω line
Note 1:
AUDIO-2 is available on D-range 1 (PL100) pin 7 via the link resistor R160.
Although PL100 pin 7 is already assigned to SERIAL-COM, this can be disabled by removing R808.
Note 2:
External CTCSS units can connect in series with the audio chain via
AUDIO-1 and AUDIO-2.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B3.10
T855 Initial Tuning and Adjustment
3.6
Synthesiser Alignment
M8SL2-00-002-812
•
Ensure that the receiver has been programmed with the required frequencies
using the PGM800Win software.
•
Connect a high impedance voltmeter to the long lead of L1 in the VCO (this measures the synthesiser loop voltage).
•
Single Channel
Tune VCO trimmer C6 for a synthesiser loop voltage of
10V.
Multichannel
Tune VCO trimmer C6 for a synthesiser loop voltage of
10V on the middle channel.
If there is no middle channel, tune C6 so that the channels
are symmetrically placed around a loop voltage of 10V.
All channels should lie within the upper and lower limits
of 16V and 3V respectively.
Do not attempt to programme channels with a greater frequency separation than the specified switching range of
5MHz.
•
The TCXO =(IC700) output frequency should be trimmed when the IF is tuned.
Refer to Section 3.7.
3.7
Alignment Of Receiver Front End And IF
Note:
In this and following sections deviation settings are given first for wide
bandwidth sets, followed by settings in brackets for mid bandwidth sets ( )
and narrow bandwidth sets [ ].
Align the synthesiser as instructed in Section 3.6. For multichannel operation align
the receiver on a frequency in the middle of the required band.
Set RV230 (front panel gating sensitivity) fully clockwise.
Inject a strong on-channel RF signal with ±3kHz deviation (±2.4kHz) [±1.5kHz] at
1kHz into the antenna socket and adjust the helicals (#FL410 and #FL420) to give
the best sinad.
Continually decrease the RF level to maintain 12dB sinad.
Roughly tune IF coils L310, L320, L330, L340, L350, L360, L370, L380, L385 and
L390 for best sinad.
While maintaining a low level unmodulated RF input to the receiver, loosely couple into the first IF an additional high level signal at 45MHz, you will hear a beat
note.
Trim the synthesiser TCXO (=IC710) for zero beat.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
T855 Initial Tuning and Adjustment
B3.11
While maintaining the low level RF input to the receiver, loosely couple into the
second IF an additional high level signal at 455kHz, you will hear a beat note.
Tune L385 for zero beat.
Note:
If a second oscillator is not available, you can connect a frequency counter to
IC710 pin 8 (i.e. after the TCXO buffer) via an oscilloscope probe to measure
the TCXO frequency directly (12.8MHz). At this point the voltage level is
approximately 4Vpp.
Readjust the front end helicals (#FL410 and #FL420) to give the best sinad.
Change the RF signal level to –75dBm and modulate with ±3kHz deviation
(±2.4kHz) [±1.5kHz] at 1kHz.
Connect an oscilloscope probe to SK320 pin 3 (RSSI 455kHz input) and connect
plugs PL210 and PL220 to give a flat audio response (refer to Section 3.5).
Readjust L310, L320, L330, L340, L350, L360, L370 and L380 to give a maximum
amplitude response on the oscilloscope with minimal amplitude modulation.
Note:
If you would like a more accurate method of tuning the IF, refer to the
sweep tuning method described in Section 5.5.5.
Further adjust these coils, along with L390, for minimum audio distortion, ensuring that the 455kHz level (on the oscilloscope) does not fall significantly.
Check that the distortion reading is:
wide bandwidth
mid and narrow bandwidth
≤2%
≤4%.
If required, reconnect plugs PL210 and PL220 to give a de-emphasised audio
response and check that the distortion reading is ≤2% (all bandwidths).
Reduce the RF level until 12dB sinad is reached. The receiver sensitivity should be
better than –117dBm (de-emphasised) or –111dBm (flat), assuming that the audio
levels are not being overdriven (refer to Section 3.11).
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B3.12
T855 Initial Tuning and Adjustment
3.8
Gating Delay
M8SL2-00-002-812
Two solder links (SL210 and SL220) are provided on the bottom of the PCB to allow
three gate delay time options, as shown in the table below.
SL210
SL220
Closing Delay
linked
not linked
<50ms*
not linked
linked
<25ms
not linked
not linked
<20ms
*Factory setting.
3.9
Noise Mute Adjustment
Connect pins 1 and 2 of PL250 to enable the noise mute.
Align the receiver as instructed in Section 3.6 and Section 3.7.
Set the RF level to –105dBm with ±3kHz deviation (±2.4kHz) [±1.5kHz] at 1kHz.
Set RV230 (front panel gating sensitivity) fully anticlockwise.
Adjust RV310 (noise mute gain) fully clockwise to close the mute (if necessary
turn off the RF signal and then turn it on again).
Rotate RV310 anticlockwise until the mute just opens.
Reset the signal generator for the required opening sinad and adjust RV230 clockwise until the mute just opens.
3.10
Carrier Level Mute
Connect pins 2 and 3 of PL250 to enable the carrier mute and disable the noise
mute.
Apply an on-channel signal from the RF generator at the required mute opening
level with ±3kHz deviation (±2.4kHz) [±1.5kHz] at ±1kHz.
Adjust RV235 (carrier mute) anticlockwise to close the mute (if necessary, momentarily turn off the RF), then slowly adjust it clockwise until the mute just opens.
The mute should now open at this preset level.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
3.11
Audio Processor
3.11.1
Line Amplifier Output
T855 Initial Tuning and Adjustment
B3.13
Apply an on-channel signal from the RF generator at a level of –70dBm with
±3kHz deviation (±2.4kHz) [±1.5kHz] at 1kHz.
Adjust RV210 (front panel line level) to give an output of +10dBm on the 600Ω
line.
Check for any clipping or distortion on the oscilloscope.
Set the line level to the required output level.
3.11.2
Monitor Amplifier Output (Speaker Output)
Adjust RV205 (front panel monitor volume) to give an output of 2Vrms into a 4Ω
resistive load.
Check for any clipping or distortion on the oscilloscope.
Switch to a 4Ω speaker and adjust RV205 to the required level.
3.12
CTCSS
3.12.1
Decoder Operation
Program a CTCSS tone on the default channel using PGM800Win.
Set the RF signal generator output to –70dBm.
Modulate the generator with both:
• a 1kHz tone at ±3kHz deviation (±2.4kHz) [±1.5kHz]
• and a CTCSS tone at the programmed frequency at ±500Hz deviation (±400Hz)
[±300Hz].
Check that the receiver gate opens and the front panel “Gate” LED is on.
3.12.2
Opening Sinad
Adjust RV230 (front panel gating sensitivity) fully clockwise.
Reduce the RF signal level to –110dBm.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B3.14
T855 Initial Tuning and Adjustment
M8SL2-00-002-812
Observe the sinad meter and reduce the RF level until the receiver mute closes.
Slowly increase the signal level until the receiver mute just opens and stays open.
With PL240 pins 1 and 2 linked (G – H; high pass filter bypassed), check that the
sinad is less than 6dB.
Reset the signal generator for the required opening sinad, adjust RV230 fully anticlockwise, then clockwise until the mute just opens.
3.12.3
High Pass Filter
Set the audio processor links as follows:
Plug
Link
Function
PL210
1–2
A–B
de-emphasised response
PL230
2–3
N–P
audio from internal CTCSS speech filter
PL240
4–5
K–L
audio input via PL230 or I/O pad
Reset the RF signal generator output to –70dBm and note the line level (measurement A).
Reduce the 1kHz generator to zero output and measure the line level again (measurement B).
Check that measurement B is at least 30dB below measurement A.
3.13
RSSI
The T800-04-0000 RSSI is an optional PCB which adds signal strength monitoring and
high level mute facilities to the basic receiver.
Ensure the T800-04-0000 PCB is fitted in SK320 and SK330 in the IF compartment.
Align the receiver as instructed in Section 3.6 and Section 3.7.
Apply an on-channel signal from the RF generator at a level of –110dBm with
±3kHz deviation (±2.4kHz) [±1.5kHz] at 1kHz.
Adjust RV320 (RSSI level) to give 2.0V RSSI output on pin 5 of D-range 1 (PL100)
when measured with a high impedance DMM.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 Functional Testing
M8SL2-00-002-812
4
B4.1
T855 Functional Testing
Caution:
This equipment contains CMOS devices which are susceptible to damage from static charges. Refer to Section 1.2 in Part A for more information on anti-static procedures when handling these devices.
The following test procedures will confirm that the T855 has been tuned and adjusted
correctly and is fully operational.
Note 1:
In this and following sections deviation settings are given first for wide
bandwidth sets, followed by settings in brackets for mid bandwidth sets ( )
and narrow bandwidth sets [ ].
Note 2:
Unless otherwise specified, the term “PGM800Win” used in this and following sections refers to version 4.02 and later of the software.
Refer to Figure 4.3 for the location of the main tuning and adjustment controls, and to
Section 3.3 for the test equipment set-up. Refer also to Section 6 where the parts lists,
grid reference index and diagrams will provide detailed information on identifying and
locating components and test points on the main PCB. The parts list and diagrams for
the VCO PCB are in Part E.
The following topics are covered in this section.
Section
Title
Page
4.1
Current Consumption
4.3
4.2
Sensitivity
4.3
4.3
Switching Range
4.3
4.4
Audio Distortion
4.4
4.5
Ultimate Signal-To-Noise Ratio
4.4
4.6
De-emphasised Audio Frequency Response
4.5
4.7
Noise Mute (If Linked In)
4.6
4.8
RSSI (If Fitted)
4.6
4.9
Carrier Level Mute (RSSI Fitted and Carrier Mute Linked
In)
4.7
Figure
Title
Page
4.1
T855 De-emphasised Audio Frequency Response
4.5
4.2
T855 RSSI Voltage vs Signal Strength
4.6
4.3
T855 Main Tuning and Adjustment Controls
4.9
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B4.2
T855 Functional Testing
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
4.1
T855 Functional Testing
B4.3
Current Consumption
Connect the T855 to a 13.8V power supply.
Rotate RV230 (front panel gating sensitivity) anticlockwise until the “Gate” LED is
extinguished.
Set switch SW201 (front panel monitor mute) to the on position.
Check that the current in the 13.8V power cable is less than 350mA.
Rotate the RV230 clockwise until the “Gate” LED is lit.
Rotate RV210 (front panel line level) and RV205 (front panel monitor volume) to
give maximum outputs.
Check that the current is less than 800mA.
Reset the front panel controls to the required settings.
4.2
Sensitivity
If CTCSS is enabled, disable the CTCSS tone by either programming the T855 for
“No Tone” on the set channel, or by pulling pin 10 of D-range 2 (CTCSS ENABLE)
low.
Apply an on-channel signal from the RF generator with ±3kHz deviation
(±2.4kHz) [±1.5kHz] at 1kHz.
Adjust the RF level to give 12dB audio sinad.
Check that the sensitivity is –117dBm or better.
4.3
Switching Range
Apply an on-channel signal from the RF generator at various frequencies within
the 5MHz switching range (front end bandwidth), corresponding to pre-programmed channels.
Measure the sensitivity at each frequency as described in Section 4.2.
Ensure that the sensitivity is –115dBm or better across the whole switching range.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B4.4
T855 Functional Testing
4.4
Audio Distortion
M8SL2-00-002-812
The level of distortion measured at the line output (refer to Figure 1.3 in Part G) gives an
indication of the accuracy of the IF alignment.
Apply an accurate on-channel signal from the RF generator at a level of –70dBm
with ±3kHz deviation (±2.4kHz) [±1.5kHz] at 1kHz.
Adjust RV210 (front panel line level) to give +10dBm into 600Ω.
Check that the distortion is approximately 1% THD.
Note:
For a flat response, the distortion should always be better than 2% for wide
bandwidth sets or 4% for mid and narrow bandwidth sets.
Adjust RV205 (front panel monitor volume) to give 2Vrms into a 4Ω resistive load.
Check that the distortion at the monitor output is better than 2% THD.
Reset the controls before proceeding to the next set of tests.
4.5
Ultimate Signal-To-Noise Ratio
Apply a signal from the RF generator at a level of –57dBm with ±3kHz deviation
(±2.4kHz) [±1.5kHz] at 1kHz.
Select de-emphasis on the links provided in the audio processor (refer to Section
3.5), and link pins 2 and 3 of PL240 to include the 300Hz filter.
Adjust RV210 (front panel line level) to provide +10dBm output.
Switch off the modulation, checking that the residual noise is lower than –45dBm
(–43dBm) [–39dBm] at the line output (this corresponds to S/N of 55dB (53dB)
[49dB] and is in accordance with EIA measurement conditions).
Note:
You can make the measurement without the 300Hz high pass filter, but the
result will be 10dB worse.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 Functional Testing
M8SL2-00-002-812
4.6
B4.5
De-emphasised Audio Frequency Response
Set RV210 (front panel line level) to provide 0dBm output at 1kHz modulating frequency.
Sweep the modulating frequency, checking that the line audio response closely
follows that shown in Figure 4.1 – the limits should not be exceeded.
Wide Bandwidth
25°C 13.8V
+25
+20
Ref. audio power:
+0.0dBm @ 1kHz
+15
Audio Level (dB ref. to O/P @ 1kHz)
+10
+5
+0
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
-55
100
200
300
500
1k
2k
3k
5k
10k
2k
3k
5k
10k
2k
3k
5k
10k
Frequency (Hz)
Mid Bandwidth
25°C 13.8V
+25
+20
Ref. audio power:
-2.5dBm @ 1kHz
+15
Audio Level (dB ref. to O/P @ 1kHz)
+10
+5
+0
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
-55
100
200
300
500
1k
Frequency (Hz)
Narrow Bandwidth
25°C 13.8V
+25
+20
Ref. audio power:
-2.2dBm @ 1kHz
+15
Audio Level (dB ref. to O/P @ 1kHz)
+10
+5
+0
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
-55
100
200
300
500
1k
Frequency (Hz)
Figure 4.1 T855 De-emphasised Audio Frequency Response
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B4.6
T855 Functional Testing
4.7
Noise Mute (If Linked In)
M8SL2-00-002-812
Rotate RV230 (front panel gating sensitivity) fully anticlockwise.
Apply an on-channel signal from the RF generator at a level of –110dBm with
±3kHz deviation (±2.4kHz) [±1.5kHz] at 1kHz.
Increase the RF level in 1dB steps, checking that the mute opens for an RF input
level of approximately –105dBm.
Turn the RF off and check that the mute closes.
Rotate RV230 clockwise and check that the mute opens.
Reset RV230 to give the required opening sinad.
Caution:
RSSI (If Fitted)
Apply an on-channel signal from the RF generator at a level of –110dBm with
±3kHz deviation (±2.4kHz) [±1.5kHz] at 1kHz.
Using a high impedance DMM, check that the RSSI output voltage on pin 5 of
D-range 1 (PL100) is 2V (nominal).
Vary the RF level in 5dB steps and check that the RSSI output voltage changes at a
rate of approximately 10dB/V over the range of –115dBm to –70dBm (refer to Figure 4.2 for RSSI voltage vs signal strength).
8
7
6
RSSI Voltage
4.8
Some RF generators can cause a false opening of the mute because the
generator produces a burst of noise when the attenuation range
changes. To correct the problem you will have to change generators.
5
4
3
2
1
-130
-120
-110
-100
-90
RF Level (dBm)
-80
-70
-60
Figure 4.2 T855 RSSI Voltage vs Signal Strength
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
4.9
T855 Functional Testing
B4.7
Carrier Level Mute (RSSI Fitted and Carrier Mute
Linked In)
Apply an on-channel signal from the RF generator at a level of –120dBm with
±3kHz deviation (±2.4kHz) [±1.5kHz] at 1kHz.
Increase the RF level in 2dB steps and check that the mute opens at an RF level
which corresponds with the preset level on RV235 (carrier mute), i.e. between
–115dBm and –70dBm.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B4.8
T855 Functional Testing
M8SL2-00-002-812
#FL410
SK805
L1
=IC700
TCXO
C6
IC710 pin 8
#FL420
TCXO frequency
measurement
L360
L390
L310
RV310
L320
noise mute gain
L370
L385
L350
L380
L340
RV320
L330
RSSI level
RV220
TP314
RX-DISABLE
PL210
SK320 pin 3
PL260
PL270
PL250
RV235
carrier mute
PL220
PL230
PL240
RV230
gating sensitivity
RV210
line level
RV205
monitor volume
SW201
monitor mute
Figure 4.3 T854 Main Tuning and Adjustment Controls
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 Fault Finding
M8SL2-00-002-812
5
B5.1
T855 Fault Finding
Caution:
This equipment contains CMOS devices which are susceptible to damage from static charges. Refer to Section 1.2 in Part A for more information on anti-static procedures when handling these devices.
The following test procedures and fault finding flow charts may be used to help locate a
hardware problem, however they are by no means a complete fault finding procedure.
If you still cannot trace the fault after progressing through them in a logical manner,
contact your nearest Tait Dealer or Customer Service Organisation. If necessary, you can
get additional technical help from Technical Support, Tait Electronics Ltd, Christchurch,
New Zealand (full contact details are on page 2).
Note 1:
In this and following sections deviation settings are given first for wide
bandwidth sets, followed by settings in brackets for mid bandwidth sets ( )
and narrow bandwidth sets [ ].
Note 2:
Unless otherwise specified, the term “PGM800Win” used in this and following sections refers to version 4.02 and later of the software.
Refer to Section 6 where the parts lists, grid reference index and diagrams will provide
detailed information on identifying and locating components and test points on the
main PCB. The parts list and diagrams for the VCO PCB are in Part E.
The following topics are covered in this section.
Section
Title
Page
5.1
Visual Checks
5.3
5.2
Component Checks
5.3
5.3
Front Panel LED Indicator
5.3
5.4
DC Checks
5.4
5.4.1
Power Rails
5.4
5.4.2
VCO Locking
5.4
5.4.3
Mute Operation
5.4
RF Checks
5.5
5.5.1
VCO Frequency
5.5
5.5.2
RF Sensitivity
5.5
5.5.3
5.5.3.1
5.5.3.2
Oscillator Stability
TCXO
Second IF
5.6
5.6
5.6
5.5.4
Demodulator Output
5.6
5.5.5
IF Distortion
5.6
5.5
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B5.2
T855 Fault Finding
M8SL2-00-002-812
Section
Title
Page
5.6
PGM800Win Generated Errors
5.8
5.7
Fault Finding Charts
5.9
5.7.1
5.7.1.1
5.7.1.2
5.7.1.3
Microcontroller (IC810)
Basic Checks
Serial Communication
CTCSS Decode
5.9
5.9
5.10
5.11
5.7.2
Regulator
5.12
5.7.3
Synthesiser
5.13
5.7.4
Noise Mute
5.16
5.7.5
Carrier Mute
5.17
5.7.6
Receiver
5.18
5.7.7
Audio
5.19
Figure
Title
Page
5.1
RF Test Cable
5.5
5.2
IF Swept Response
5.7
5.3
Ceramic Filter Swept Response
5.7
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 Fault Finding
M8SL2-00-002-812
5.1
B5.3
Visual Checks
Remove the covers from the T855 and inspect the PCB for damaged or broken components, paying particular attention to the surface mounted devices (SMDs).
Check for defective solder joints. If repair or replacement of components is considered
necessary, refer to Section 3 of Part A.
5.2
Component Checks
If you suspect a transistor is faulty, you can assess its performance by measuring the forward and reverse resistance of the junctions. Unless the device is completely desoldered, first make sure that the transistor is not shunted by some circuit resistance. Use a
good quality EVM (e.g. Fluke 75) for taking the measurements (or a 20kΩ/V or better
multimeter, using only the medium or low resistance ranges).
The collector current drawn by multi-junction transistors is a further guide to their performance.
If an IC is suspect, the most reliable check is to measure the DC operating voltages. Due
to the catastrophic nature of most IC failures, the pin voltages will usually be markedly
different from the recommended values in the presence of a fault. The recommended
values can be obtained from either the circuit diagram or the component data catalogue.
5.3
Front Panel LED Indicator
The green “Supply” LED on the front panel will flash according to the conditions
described in the following table:
Flash Rate
Condition
fast
(1s on/1s off
approx.)
receiver is linked with
PGM800Win
slow
(1s on/1s off
approx.)
VCO is out of lock –
refer to Section 5.4.2
unequal
(1s on/1s off
approx.)
microcontroller has detected an
internal communications error –
refer to Section 5.7.1
Where two or more conditions occur at the same time, the precedence is in the order
shown above (i.e. receiver linked has the highest priority, followed by VCO error, then
internal error).
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B5.4
T855 Fault Finding
5.4
DC Checks
5.4.1
Power Rails
M8SL2-00-002-812
Refer to the test points and options diagrams in Section 6 for test point locations, and to
the regulator fault finding chart (Section 5.7.2) for fault diagnosis.
Check the 9V (TP602) and 13.8V (TP601) power supply test points in the regulator
compartment with a DMM.
Check the 20V regulator output at the test point (TP603) in the regulator compartment.
Check the 5V regulator output at the test point (TP604) in the regulator compartment and on IC310 pin 4.
Check the 5V digital regulator output at the junction of C611A (+) and IC610 pin 2
in the regulator compartment.
5.4.2
VCO Locking
Using a DMM, monitor the VCO control voltage on the long lead of L1 on the
VCO PCB.
If the synthesiser is locked and the VCO aligned, the voltage at this point should
be between 3 and 16V.
If the VCO is not locked, refer to the synthesiser fault finding charts (Section 5.7.3).
5.4.3
Mute Operation
The front panel “Gate” LED will show the status of the mute circuitry and will turn on
when a signal is received above the threshold level.
Check that PL250 is linked correctly:
noise mute
carrier mute
1–2
2–3.
Check that the mute gate opens as follows:
noise mute
rotate RV230 (front panel gating sensitivity) fully clockwise and check that the front panel “Gate” LED turns on;
carrier mute
rotate RV235 (carrier mute) fully clockwise and check that
the front panel “Gate” LED turns on.
If the mute fails to operate correctly, refer to the noise mute fault finding chart (Section
5.7.4) or the carrier mute fault finding chart (Section 5.7.5).
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 Fault Finding
M8SL2-00-002-812
5.5
RF Checks
5.5.1
VCO Frequency
B5.5
Check that the VCO is phase locked (refer to Section 5.4.2).
Connect a frequency counter (level +20dBm) to the VCO input to the mixer
(IC410).
Monitor the local oscillator frequency and check that it is 45MHz below the
required receive frequency.
Refer to the synthesiser fault finding charts (Section 5.7.3) for further information.
5.5.2
RF Sensitivity
Ensure that the VCO is on the correct frequency and the receiver correctly aligned.
Check that the 12dB sinad sensitivity into the front end is as follows:
–117dBm (de-emphasised response)
–111dBm (flat response).
If the sensitivity is poor, you can trace the fault by measuring the sensitivity into
successive circuit blocks. Prepare a test cable by connecting a 1nF capacitor to the
end of a length of coax cable as shown in Figure 5.1.
1nF
To Test Cable
Coax
Connect To Earth
Figure 5.1 RF Test Cable
Note:
Before using the test cable, ensure the coax braid is connected to an earth
point on the PCB.
Using the RF test cable, apply a modulated 45MHz signal to the test breaks in the
IF section, or an on-channel RF signal to the front end test breaks.
Check that the sensitivity at each test break is within 2dB of the levels shown on
the circuit diagram.
Poor sensitivity indicates a fault in one of the circuit blocks following the test break.
Note:
Poor sensitivity into the mixer can be caused by lack of drive level from the
VCO (the drive level should be >+17dBm).
Refer to the receiver fault finding charts (Section 5.7.6) for further information.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B5.6
T855 Fault Finding
5.5.3
Oscillator Stability
5.5.3.1
TCXO
M8SL2-00-002-812
While maintaining a low level unmodulated RF input to the receiver, loosely couple into the first IF an additional high level signal at 45MHz. You should now hear
a constant low frequency beat note.
Tap the TCXO with a finger and replace it if the beat note permanently changes.
5.5.3.2
Second IF
While maintaining a low level unmodulated RF input to the receiver, loosely couple into the second IF an additional high level signal at 455kHz. You should now
hear a constant low frequency beat note.
Adjust L385 for “zero beat".
5.5.4
Demodulator Output
Apply an on-channel RF signal modulated by 1kHz with ±3kHz (±2.4kHz)
[±1.5kHz] deviation at an amplitude of –65dBm.
Connect an oscilloscope probe (DC coupled) to TP314 (audio output).
Check that an audio signal of approximately 800mV peak to peak is present.
Optimum tuning of the quad coil (L390) for minimum audio distortion (with a “flat”
audio response) should coincide with maximum audio amplitude and a DC level of
approximately 1.7V.
5.5.5
IF Distortion
If the audio distortion is still high after careful IF alignment (Section 3.7), sweep the IF to
investigate the bandpass response.
Apply an on-channel RF signal modulated at 10Hz (sine wave) with ±12kHz
(±9kHz) [±6kHz] deviation at an amplitude of –80dBm.
Connect the modulating 10Hz audio signal to the “X” input of an oscilloscope and
observe the 455kHz IF input to SK320 pin 3 via a suitable RF probe on the “Y”
input. Alternatively, if you have an RSSI PCB fitted, use an oscilloscope probe for
the “Y” input to monitor the RSSI output voltage at pad P238 (RSSI test point) or
pin 5 of D-range 1 (PL100). This will give a demodulated log response and only
the top half of the wave forms shown in Figure 5.2 and Figure 5.3 will be displayed on the oscilloscope screen.
Note:
The “X” input should be DC coupled.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 Fault Finding
M8SL2-00-002-812
B5.7
Check that the swept response has a rounded top and no sharp non-linearities
(refer to Figure 5.2).
Increase the RF level to –50dBm; the trace will now show the shape of the 455kHz
ceramic filter (&XF302).
Check that the response has no sharp non-linearities.
If sharp non-linearities do occur, replace the filter and sweep again to confirm a
satisfactory solution (refer to Figure 5.3).
Figure 5.2 IF Swept Response
Figure 5.3 Ceramic Filter Swept Response
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B5.8
T855 Fault Finding
5.6
PGM800Win Generated Errors
M8SL2-00-002-812
The following errors are those most likely to occur using PGM800Win. Refer to the
PGM800Win software user’s manual for a complete list of error messages.
Channel Switch Set
The (programmed) default channel change was not accepted by the base station because
a channel is selected externally. Try turning the external channel switch off to change the
default channel in PGM800Win.
Synth Out Of Lock
The synthesiser received incorrect data, or the data was corrupted. Enter a frequency
within the VCO switching range, or tune the VCO.
Internal Error
Data could not be read from the base station due to an internal error. Check for shorts or
open circuits on the SDA, SCK, SYNTH and EPOT lines. The SDA, SCK and SYNTH are
normally high.
Write/Read To An Unlinked Module
The link to the module does not exist. Undefined error.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 Fault Finding
M8SL2-00-002-812
B5.9
5.7
Fault Finding Charts
Note:
The standard test point designations used in this section are as follows:
TP601
TP602
TP603
TP604
13.8V
9V
20V
5V
5.7.1
Microcontroller (IC810)
5.7.1.1
Basic Checks
Is the 12.8MHz clock
present on IC810 pin 21
(microcontroller)?
N
Check IC710.
Y
Replace
IC810.
N
Is pin 30
pulsing?
Y
Replace
IC650.
Pulsing
Check the
state of
pin 10.
High or open circuit
Low
Check state of
pins 36 to 43.
Use a DSO* to check
operation of IC650
(i.e. active high
pulse at power up).
*digital storage oscilloscope
Pulsing
Static high/low
Replace IC810.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Check state
of pin 35.
High
Low/floating
Correct the fault causing
pin 35 to be low/floating.
Replace
IC810.
B5.10
T855 Fault Finding
5.7.1.2
Serial Communication
Disconnect the
programming lead.
Is IC810 pin 11 high?
(microcontroller)
M8SL2-00-002-812
Low/floating
N
Check pin state.
Check the transistor
interface circuitry.
Noise
on pin
Y
Check the SERIAL-COM
and AUDIO-1/2 links.
Connect the programming
lead and use PGM800Win
to read the rack/radio.
Check I/O pad P810
with a DSO*.
Does it swing from
0 to 5V?
*digital storage
oscilloscope
Check the transistor
interface circuitry
and/or replace the
programming lead.
N
Y
Use PGM800Win
to send a POLL
command to the
radio.
Check IC810 pin 13
with a DSO. Is there
a response from IC810 after
a poll command is sent?
N
Replace
IC810.
Y
Check the transistor
interface circuitry
and/or replace the
programming lead.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 Fault Finding
M8SL2-00-002-812
5.7.1.3
CTCSS Decode
Use PGM800Win to
select a channel
with a CTCSS tone
programmed.
Cannot select a channel
Set test equipment to correct
channel/CTCSS tone.
Check IC830 pin 7.
Is there a square wave at
the CTCSS input frequency?
No square wave or
uneven mark/space ratio
Check serial communications.
(See separate flow chart).
Check the input filter
is operating correctly
(IC830 pin 8).
Y
Check IC810 pins 24 & 26
(microcontroller).
Are there 5V square waves at
the CTCSS frequency?
No square waves or
uneven mark/space ratio
Replace IC810.
Y
Check IC850 pins 1 & 14.
Are there 9V square waves at
the CTCSS frequency?
No square waves or
uneven mark/space ratio
Replace IC850.
Y
Is IC850 pin 7 low and
Q845 collector high?
N
Replace IC850
or Q845.
Y
N
Is IC810 pin 31 low?
Y
Check the receiver
mute circuit.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Replace IC810.
B5.11
B5.12
T855 Fault Finding
5.7.2
Regulator
M8SL2-00-002-812
Check for
overheating
components &
short circuits.
N
13.8V present on
IC630 pin 3?
Check continuity
from D-range
connector pin 9.
(D-range 1)
Y
N
5.3V present on
IC630 pin 1?
Replace IC630.
Y
9.0V present
on TP602?
N
Check Q620,
Q630 & IC640.
Y
20V present
on TP603?
N
Check Q660 is
switching at
approx. 180kHz.
Y
5V present on
IC610 pin 1?
N
Check R615.
Replace IC610.
Y
Regulators OK.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 Fault Finding
M8SL2-00-002-812
5.7.3
B5.13
Synthesiser
Refer to the synthesiser circuit diagram (sheet 7) in Section 6 and the VCO circuit diagram in Part E.
A
B
No VCO RF output.
VCO out of lock.
N
9V present at
VCO Q4/Q5?
Check 9V reg.
+5V present
at IC700, IC710
& IC740?
Y
Check biasing
resistors, Q4 & Q5.
20V present
on IC750 pin 8?
Y
8.3V present
at VCO?
9V present on
Q795 divider buffer?
Y
N
N
20V inverter
supply faulty.
Y
Check Q4 C
multiplier
(synth).
N
DC V present at
VCO, Q1, Q2 & Q3?
Check 5V reg. &
supply resistor
to each IC.
Y
N
DC V present
at Q4 & Q5?
N
N
Check 9V supply.
Y
Check biasing
resistors, Q1,
Q2 & Q3.
DC V present
on Q795 emitter?
Y
N
Check biasing
resistors & Q1.
Y
Capacitors OK?
Check for cracks,
shorts, etc.
N
Replace
if faulty.
N
Y
Replace VCO.
Does VCO trimmer
adjust for stable
control line between
3 & 16V?
Y
N
VCO freq. correct?
Y
Check VCO tuning
caps & trimmer.
N
VCO trimmer
freq. range OK?
N
Does VCO trimmer
adjust for required
frequency range
between 3 & 16V?
Y
Y
Check #C1, L1, L2,
D1 & D2 in VCO.
N
Is 8MHz VCO range
achieved between
3 & 16V?
Y
VCO OK.
Continued on the next page
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Synthesiser OK.
Recheck
programming
via PGM800Win.
B5.14
T855 Fault Finding
M8SL2-00-002-812
B
Continued from previous page
Replace synthesiser
(IC740).
Y
Check phase detector output
pins (IC740 pins 3 & 4).
Are there very narrow pulses
(~50ns) at the reference frequency?
(i.e. 5kHz : 200µs period
6.25kHz : 160µs period)
*See Note below.
N
Check programming.
Check serial bus
when programming
i.e. clock/data/enable
activity (IC740 pins
18, 19 & 17).
Programming and
serial bus OK?
Y
Is reference
clock present
at IC740 pin 20
(12.8MHz >1.5Vpp)?
N
N
Y
Check microcontroller
section (IC810).
Is the charge pump bias
voltage at the base of
Q760 & Q780 between
3.5 and 5V? (5V when locked)
N
Check TCXO (IC700)
and buffers (IC710).
Check Q760, Q780,
R766 & C765.
Y
Is the voltage on C762,
R760, and R758 9V ±0.2V?
N
Check R762 & C762.
Y
Is the charge pump voltage
on Q790 gate between
3 and 8.5V? (6.5V ±0.2V locked)
N
Check charge pump components
(Q775 & Q780) and Q790.
Y
N
Is the loop filter reference
voltage at C772 (+) 6.5V ±0.2V?
Check C772, R774, R772,
C770, R763 & Q790.
Y
Check loop filter components
R775, C774, C776, R510,
C505, IC750. Is the supply
to IC750 +20V +4, -2V?
N
Check regulator circuitry.
Y
Check the signal path from
the VCO to synthesiser.
Measure the frequency from
the VCO at IC740 pin 11 using
a frequency counter.
No signal
Check VCO.
Signal
Is the level >-10dBm?
Does the frequency adjust
as the VCO trimmer is
adjusted (out of lock)?
Y
Replace synthesiser
(IC740).
N
Check divider buffer
circuit (Q795) and bias
voltages on Q795 emitter
(1.3V ±0.2V).
*Note:
When locked, both of these
are very narrow (~50ns).
If unlocked, one will be
very narrow (~50ns),
and the other wide (>15µs).
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 Fault Finding
M8SL2-00-002-812
C
Noisy synth; poor
selectivity &/or
poor residual FM.
VCO phase locked?
3-16V present on
control line?
N
Go to B.
Y
N
Correct DC V
present on Q1 VCO?
Check inductors,
biasing resistors
& Q1.
Y
Loop filter &
components around
op. amp. (IC750) OK?
N
Replace if faulty.
Y
N
Change trimmer;
still noisy?
Y
Change Q1;
still noisy?
N
Y
Change TCXO;
still noisy?
N
Y
Change varactors;
still noisy?
N
Y
Replace VCO
assembly.
Y
Synthesiser OK.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B5.15
B5.16
T855 Fault Finding
5.7.4
Noise Mute
M8SL2-00-002-812
Ensure PL250 is set
for noise mute operation.
Apply on channel signal
@ -117dBm* to receiver.
Y
Rotate RV230
(gating sensitivity)
c/w & cc/w & view
"Gate" LED.
Audio on
TP314?
Noise on
IC310 pin 11?
*Modulated by 1kHz signal with
±3kHz (±2.4kHz) [±1.5kHz] deviation
Refer to
receiver fault
finding chart.
N
N
Check components
around active filter.
Y
Does "Gate" LED
toggle on/off?
N
Y
Switch SW201 (monitor
mute) to ensure
mute is enabled.
N
Amplified noise
on C380?
Check Q340
& Q350.
Y
N
Approx. 0.6V DC rectified noise on pad 236?
Check D310 is
rectifying noise.
Y
Y
OK
Check Q230, Q245 &
Q290 for operation.
Vary RF level &
observe voltage
on pad 236.
Mutable audio
on outputs?
Pad 236 voltage
varies 0-1.8V?
N
Y
Refer to audio
fault finding chart.
Note:
c/w = clockwise
cc/w = counterclockwise
or anticlockwise
Check RV330
adjustment
(noise mute gain).
N
Adjust RV230
(gating sensitivity)
& observe voltage
on IC270 pin 3.
N
Voltage varies
0-2.5V?
Check 9V rail &
resistors R264,
R265 & R284.
Y
Set RF signal level to
-117dBm. Rotate
RV230 c/w & cc/w.
Monitor voltage on
IC270 pin 1. Switching
0-8V as RV230 rotated?
N
Replace IC270.
Y
Monitor voltage on
IC270 pin 7. Switching
0-8V as RV230 rotated?
N
Check/replace
IC270 & D240.
Y
Monitor voltage on
pad 234. Switching
0-8V as RV230 rotated?
N
Replace Q250.
Y
Y
Does "Gate"
LED toggle?
N
Check/replace
Q255 & D250.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 Fault Finding
M8SL2-00-002-812
5.7.5
B5.17
Carrier Mute
Ensure PL250 is set
for carrier mute operation,
and the RSSI PCB is fitted.
Apply on channel signal
@ -110dBm* to receiver.
Audio on
TP314?
*Modulated by 1kHz signal with
±3kHz (±2.4kHz) [±1.5kHz] deviation.
Refer to
receiver fault
finding chart.
N
Y
N
Approx. 2V at
D-Range 1 pin 5?
Check for short circuits
and/or replace IC310.
Y
Rotate RV235
(carrier mute) c/w & cc/w
& view "Gate" LED.
Y
Does "Gate" LED
toggle on/off?
N
N
Approx. 5V on
RSSI pad 238?
Check Q340 and
adjoining components.
Y
Switch SW201
(monitor mute) to ensure
mute is enabled.
N
Approx. 5V on
IC280 pin 1?
Check/replace IC280
& adjoining components.
Y
Check Q230, Q245 &
Q290 for operation.
Y
OK
Adjust RV235 &
observe voltage
on IC280 pin 6.
Mutable audio
on outputs?
Check 9V rail &
resistors R275,
R277 & RV235.
N
Voltage varies
0-6V?
N
Y
Refer to audio
fault finding chart.
Note:
c/w = clockwise
cc/w = counterclockwise
or anticlockwise
Set RF signal level
to -95dBm. Rotate
RV235 c/w & cc/w.
Monitor voltage on
IC280 pin 7. Switching
0-8V as RV235 rotated?
N
Replace IC280.
Y
Monitor voltage on
IC270 pin 7. Switching
0-8V as RV235 rotated?
N
Check/replace
IC270 & D240.
Y
Monitor voltage on
pad 234. Switching
0-8V as RV235 rotated?
N
Replace Q250.
Y
Y
Does "Gate"
LED toggle?
© Copyright Tait Electronics Limited August 2004. All rights reserved.
N
Check/replace
Q255 & D250.
B5.18
T855 Fault Finding
5.7.6
Receiver
M8SL2-00-002-812
Refer to the receiver IF and front end circuit diagrams (sheets 3 and 4) in Section 6.
A
Poor sensitivity:
worse than -117dBm.
Ensure VCO, RF
front end & IF
correctly aligned.
High audio
distortion?
B
Y
See Chart B
(below).
N
High audio
distortion.
N
Check DC
conditions OK?
(see cct diagrams)
Replace
faulty device.
Y
Quad coil L390
tuned for min.
distortion (flat
audio response)?
N
Adjust L390.
Retune all
IF coils.
Check sensitivity
into each stage
(see 5.5.2)
Y
Check VCO
frequency OK?
N
Readjust TCXO
frequency.
Check/repair faulty
stage or component.
Y
Check IF
alignment OK?
N
Adjust IF coils.
Y
Check distortion
TP314 OK?
Y
N
Check distortion
TP314,
injecting 45MHz
@ -47dBm into TP310
at Q320 input. OK?
N
Fault in IC310,
&XF302, Q330,
Q320, &XF301 or
surrounding circuitry.
Check/replace.
Y
Fault find audio.
Inject 45MHz
after mixer IF
output TP412.
Measure distortion.
OK?
N
Check
sensitivity
into each
IF stage.
Repair stage.
Y
Inject on-channel
RF into mixer TP411.
Measure distortion.
OK?
Y
OK
N
Check TCXO
stability OK?
(see 5.5.3)
Y
Refer to
synthesiser
fault finding
charts.
Y
Replace TCXO.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 Fault Finding
M8SL2-00-002-812
5.7.7
Audio
Apply on channel signal
@ -117dBm* to receiver.
*Modulated by 1kHz signal with
±3kHz (±2.4kHz) [±1.5kHz] deviation.
Refer to
receiver fault
finding chart.
N
Audio on
TP314?
Y
N
Audio on
IC210 pin 1?
Check components
around IC210.
Y
Audio at
top of RV205
& RV210?
N
Check C233.
Check link PL240.
Y
Ensure RV230
(gating sensitivity)
fully clockwise.
N
"Gate" LED on?
Refer to mute
fault finding charts.
Y
N
Audio on
C238/C259?
Refer to mute
fault finding charts.
Y
Audio on
IC240 pin 2 &
IC260 pin 2?
N
Replace
faulty IC.
Y
Audio on
speaker?
N
Replace C249 &
check continuity.
Y
Audio on line
monitor (pad 284)
& line output?
N
Y
OK
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Check/replace
output components.
B5.19
B5.20
T855 Fault Finding
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 PCB Information
M8SL2-00-002-812
6
B6.1.1
T855 PCB Information
Caution:
This equipment contains CMOS devices which are susceptible to damage from
static charges. Refer to Section 1.2 in Part A for more information on anti-static
procedures when handling these devices.
This section provides the following information on the T855 receiver:
• parts lists
• grid reference indexes
• mechanical assembly drawings
• PCB layouts
• test points and options connections drawings
• circuit diagrams.
Section
Title
IPN
Page
6.1
Introduction
6.2
T800-04-0000 RSSI PCB
220-01138-03
6.2.1
6.3
T855 Receiver PCB
220-01396-02
220-01396-03
6.3.1
6.3.31
© Copyright Tait Electronics Limited August 2004. All rights reserved.
6.1.3
B6.1.2
T855 PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 PCB Information
M8SL2-00-002-812
6.1
B6.1.3
Introduction
Product Type Identification
You can identify the receiver type by checking the product code printed on a label on the rear of the
chassis (product codes are explained in Section 1 in the front matter of this manual, and Figure 1.1
in Part A shows typical labels). You can further verify the product type by checking the placement
of an SMD resistor in the table that is screen printed onto the top side of the PCB, similar to the
example drawn below. In this example, the resistor indicates that the product was built as a
T855-10-XXXX.
855-30
855-10
855-20
855-
855-13
855-23
855-15
855-25
PRODUCT TYPE
Note:
PRODUCT TYPE
855-35
The only function of this resistor is to indicate the product type. It has no effect on the
circuitry or operation of the receiver.
PCB Identification
All PCBs are identified by a unique 10 digit “internal part number” (IPN), e.g. 220-01390-02, which
is screen printed onto the PCB (usually on the top side), as shown in the example below:
The last 2 digits of this number define the issue status, which starts at 00 and increments through 01,
02, 03, etc. as the PCB is updated. Some issue PCBs never reach full production status and are therefore not included in this manual. A letter following the 10 digit IPN has no relevance in identifying
the PCB for service purposes.
Note:
It is important that you identify which issue PCB you are working on so that you can
refer to the appropriate set of PCB information.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B6.1.4
T855 PCB Information
M8SL2-00-002-812
Parts Lists
The 10 digit numbers (000-00000-00) in this Parts List are “internal part numbers” (IPNs). We can
process your spare parts orders more efficiently and accurately if you quote the IPN and provide a
brief description of the part.
The components listed in this parts list are divided into two main types: those with a circuit reference (e.g. C2, D1, R121, etc.) and those without (miscellaneous and mechanical).
Those with a circuit reference are grouped in alphabetical order and then in numerical order within
each group. Each component entry comprises three or four columns, as shown below:
circuit reference lists components
in alphanumeric
order
variant column indicates that this is
a variant component
which is fitted only to
the product type listed
description gives a brief description
of the component
Internal Part Number order the component
by this number
The miscellaneous and mechanical section lists the variant and common parts in IPN order.
Variant Components
A variant component is one that has the same circuit reference but different value or specification in
different product types. Where two products share the same PCB, the term “variant” is also used to
describe components unplaced in one product. Variant components have a character prefix, such as
“&”, “=” or “#”, before the circuit reference (e.g. &R100).
The table below explains the variant prefixes used in T800 SL2 products:
If the variant prefix is. . .
the component will. . .
&
change according to channel spacing
=
change according to frequency stability
#
change according to frequency range
%
change or be placed/unplaced for special applications
*
be unplaced in one product
(where two products share the same PCB)
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 PCB Information
M8SL2-00-002-812
B6.1.5
Grid Reference Index
This section contains a component grid reference index to help you find components and labelled
pads on the PCB layouts and circuit diagrams. This index lists the components and pads in alphanumeric order, along with the appropriate alphanumeric grid references, as shown below:
PCB layout
reference
circuit diagram
reference
components listed
in alphanumeric order
component location
on the sheet
sheet number
component location
on the layer
layer number 1 = top side layer
2 = bottom side layer
Using CAD Circuit Diagrams
Reading a CAD circuit diagram is similar to reading a road map, in that both have an alphanumeric
border. The circuit diagrams in this manual use letters to represent the horizontal axis, and numbers
for the vertical axis. These circuit diagram “grid references” are useful in following a circuit that is
spread over two or more sheets.
When a line representing part of the circuitry is discontinued, a reference will be given at the end of
the line to indicate where the rest of the circuitry is located, as shown below. The first digit refers to
the sheet number and the last two characters refer to the location on that sheet of the continuation of
the circuit (e.g. 1R3).
DISCRIMINATOR
1R3
2R9
2R9
8A2
C371
%R338
100
10U
R339
100K
C369
100P
these grid references
show where the circuit
is continued
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C301
4N7
R303
L310
33U
D
4R4
G S
IF-SIG
12
B6.1.6
T855 PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T800-04-0000 RSSI PCB Information
M8SL2-00-002-812
6.2
B6.2.1
T800-04-0000 RSSI PCB
This section contains the following information.
IPN
220-01138-03
Section
Page
Parts List
6.2.3
PCB Layout – Top Side
6.2.5
PCB Layout – Bottom Side
6.2.6
Circuit Diagram
6.2.7
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B6.2.2
T800-04-0000 RSSI PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01138-03
T800-04-0000 RSSI PCB Information
M8SL2-00-002-812
B6.2.3
T800-04-0000 Parts List (IPN 220-01138-03)
How To Use This Parts List
The components listed in this parts list are grouped in alphabetical order and then in numerical order within each group. Each component entry comprises three or four columns: the circuit reference, variant (if applicable), IPN and description. A number in the variant
column indicates that this is a variant component which is fitted only to the product type listed.
This parts list is correct at the time of publishing, but is subject to change without notification. An up to date parts list can be obtained
from your local Customer Service Organisation
Ref
IPN
Description
C1
C2
C3
C4
C5
C6
C7
C8
C9
Var
015-24100-08
015-24100-08
015-23330-08
015-25100-08
015-24100-08
015-25100-08
015-24470-08
015-25100-08
015-24100-08
Cap Cer 0805 1n 10% X7r 50v
Cap Cer 0805 1n 10% X7r 50v
Cap Cer 0805 330p 10% X7r 50v
Cap Cer 0805 10n 10% X7r 50v
Cap Cer 0805 1n 10% X7r 50v
Cap Cer 0805 10n 10% X7r 50v
Cap Cer 0805 4n7 10% X7r 50v
Cap Cer 0805 10n 10% X7r 50v
Cap Cer 0805 1n 10% X7r 50v
D1
001-10000-99
Diode SMD BAV99 D-Sw SOT23
IC1
002-10003-24
IC SMD 324 4x 0-Amp S014
Q1
002-10033-46
IC SMD MC3346D Xst Aray S014
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R14
R15
R16
R17
R18
R19
R20
R21
R22
R23
R24
R25
R26
R29
R30
R31
R32
036-14100-10
036-14220-00
036-15560-10
036-15390-10
036-15100-10
036-13680-10
036-14820-10
036-16220-00
036-13470-00
036-16330-00
036-16100-10
036-16180-00
036-15220-00
036-17100-10
036-15330-10
036-14100-10
036-15100-10
036-15100-10
036-16330-00
036-14470-10
036-15100-10
036-16150-00
036-16180-00
036-15820-00
036-14470-10
036-15100-10
036-15220-00
036-14470-10
Res M/F SMD 0805 1k 1%
Res M/F SMD 0805 2k2 5%
Res M/F SMD 0805 56k 1%
Res M/F SMD 0805 39k 1%
Res M/F SMD 0805 10k 1%
Res M/F SMD 0805 680e 1%
Res M/F SMD 0805 8k2 1%
Res M/F SMD 0805 220k 5%
Res M/F SMD 0805 470e 5%
Res M/F SMD 0805 330k 5%
Res M/F SMD 0805 100k 1%
Res M/F SMD 0805 180k 5%
Res M/F SMD 0805 22k 5%
Res M/F SMD 0805 1M 1%
Res M/F SMD 0805 33k 1%
Res M/F SMD 0805 1k 1%
Res M/F SMD 0805 10k 1%
Res M/F SMD 0805 10k 1%
Res M/F SMD 0805 330k 5%
Res M/F SMD 0805 4k7 1%
Res M/F SMD 0805 10k 1%
Res M/F SMD 0805 150k 5%
Res M/F SMD 0805 180k 5%
Res M/F SMD 0805 82k 5%
Res M/F SMD 0805 4k7 1%
Res M/F SMD 0805 10k 1%
Res M/F SMD 0805 22k 5%
Res M/F SMD 0805 4k7 1%
369-00020-36
220-01138-03
356-00010-52
Tape Vinyl Foam 2Side 25.4*3mm
PCB T700 RSSI Brd
Pin Edge Mtg 0.8mm PCB Wako
Ref
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Var
IPN
Description
B6.2.4
T800-04-0000 RSSI PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01138-03
T800-04-0000 RSSI PCB Information
220-01138-03
A
M8SL2-00-002-812
T800-04-0000 PCB (IPN 220-01138-03) - Top Side
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B6.2.5
IPN 220-01138-03
B6.2.6
T800-04-0000 RSSI PCB Information
M8SL2-00-002-812
R8
R16
R6 R5 R9 C4
C6
R13
R7 C8 R32 C2
C1 R3
P2
Q1
C3 C5 R12 R14
R11
R10
D1
R15
R20 R29
R31
R18
R17
BBADMARK
IC1
R4 C7
C9
R26
R19 R21
R24
R22
R25 R23 R30
P1
T800-04-0000 PCB (IPN 220-01138-03) - Bottom Side
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01138-00
T800-04-0000 RSSI PCB Information
M8SL2-00-002-812
A
B
C
D
E
F
G
H
J
K
L
M
9
9
P2
P1
3 EDGE CONN PINS
4 EDGE CONN PINS
8
3 D1
BAV99
1
+9V-SW
GND
7
3 D1
BAV99
2
8
1
P2
+9V-SW
R7
10K
2
P2
7
R13
5
100K
R4
2K2
R8
680
R5
56K
6
R12
330K
Q1
3346
5
14
INPUT
5
3
P2
C1
C2
1N0
R3 1N0
1K0
12
Q1
3346
330P
2
R6
39K
13
R9
8K2
C4
10N
R29
4K7
-
R14
C7
180K
4N7
Q1
3346
R11
470
3
3
7
Q1
3346
6
7
6
4
6
C6
10N
+
IC1
LM324D
1
8
C3
R10
220K
R15
22K
5
C5
1N0
R20
1
P1
10K
C9
1N0
R31
22K
4
10
R16
1M0
12
3
R32
4K7
13
3
11
9
Q1
3346
+9V-SW
2
4
BBADMARK
BADMARK
2
+
R24
4K7
150K
-
9
8
R30
10K
-
2
P1
O/P
4
P1
GND
R25
1
R19
R21
10K
330K
R23
10K
-
2
R18
C8
10N
R17
33K
3
180K
IC1
LM324D
V+
IC1
LM324D
11
14
R22
+
10
4
IC1
LM324D
+
IC1
LM324D
REF
R26
82K
+9V-SW
3
P1
1K0
NTC
V-
1
1
TAIT
0
B6.2.7
3A
2A
1A
REV/ISS
ECO 770177
ECO 740091
ECO 770163 - MIGRATED TO UNICAD.
AMENDMENTS
M.HALL
MJ/TB
M.HALL
DRAWN
ELECTRONICS
T800-04-0000
RSSI BOARD
M.HALL
M.HALL
CHKD
M.HALL
M.HALL
D.O.
JACKSON 24/06/99
JACKSON 12/05/99
APVD
DATE
IPN:
ISSUE:
220-01138-03
PROJECT:
DESIGNER:
T700
M.HALL
A
FILE
T800-04-0000 RSSI
220-01138-00
© Copyright Tait Electronics Limited August 2004. All rights reserved.
NAME:
113803a
0
ID:.
2.SC. 1
FILE
DATE:
24-Aug-99
NO.SHEETS:
1
IPN 220-01138-00
B6.2.8
T800-04-0000 RSSI PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T855 PCB Information
M8SL2-00-002-812
6.3
B6.3.1
T855 Receiver PCB
This section contains the following information.
IPN
220-01396-03
Section
Page
Parts List
6.3.3
Mechanical and Miscellaneous Parts
6.3.8
Mechanical Assembly
6.3.9
Grid Reference Index
6.3.11
PCB Layout – Top Side
6.3.15
PCB Layout – Bottom Side
6.3.16
Test Points and Options Connections – Top Side
6.3.17
Test Points and Options Connections – Bottom Side
6.3.18
Receiver Overview Diagram
6.3.19
Audio Processor Circuit Diagram
6.3.20
IF Section Circuit Diagram
6.3.21
Front End Circuit Diagram
6.3.22
VCO Section Circuit Diagram
6.3.23
Regulators Circuit Diagram
6.3.24
Synthesiser Circuit Diagram
6.3.25
Microcontroller Circuit Diagram
6.3.26
Harmonic Filter Circuit Diagram
6.3.27
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B6.3.2
T855 PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01396-03
T855 PCB Information
M8SL2-00-002-812
B6.3.3
T855 Parts List (IPN 220-01396-03)
How To Use This Parts List
The components listed in this parts list are grouped in alphabetical order and then in numerical order within each group. Each component entry comprises three or four columns: the circuit reference, variant (if applicable), IPN and description. A number in the variant
column indicates that this is a variant component which is fitted only to the product type listed.
This parts list is correct at the time of publishing, but is subject to change without notification. An up to date parts list can be obtained
from your local Customer Service Organisation
Ref
C201
&C203
&C203
&C203
&C203
&C203
&C203
&C203
&C203
&C205
&C205
&C205
&C205
&C205
&C205
&C205
&C205
C207
C209
C210
C211
C213
C215
C217
C219
C221
C222
C223
C225
C227
C229
C231
C233
C235
C237
C238
C239
C240A
C240B
C240C
C249
C251
C253
C255
C257
C259
C260A
C260B
C260C
C261
C262
C264
C266
C268
C270
C272
C274
C276
C278
C280
C286
C302
C306
C308
C310
C312
C314
C316
&C318
&C318
&C318
&C318
&C318
&C318
&C318
&C318
&C320
&C320
Var
10
13
15
20
23
25
30
35
10
13
15
20
23
25
30
35
10
13
15
20
23
25
30
35
10
13
IPN
Description
Ref
Var
IPN
Description
020-08100-04
015-25100-08
015-25100-08
015-24470-08
015-25100-08
015-25100-08
015-24470-08
015-25100-08
015-24470-08
015-24470-08
015-24470-08
015-25100-08
015-24470-08
015-24470-08
015-25100-08
015-24470-08
015-25100-08
020-07100-02
020-08470-02
015-24100-08
015-24470-08
015-25470-08
015-21220-01
015-22470-01
015-24470-08
015-24100-08
020-08100-04
015-06100-08
015-06100-08
015-23100-01
020-08100-04
020-08100-04
020-08100-04
015-24100-08
015-24100-08
015-06100-08
020-09100-03
015-24100-08
015-06100-08
020-09220-01
020-09470-05
015-06100-08
020-09100-03
015-24100-08
015-24100-08
015-06100-08
015-24100-08
015-06100-08
020-09220-01
020-09100-03
020-09100-03
015-06100-08
020-07470-91
020-07470-91
015-06100-08
015-25100-08
015-06100-08
015-25470-08
015-06100-08
015-25470-08
015-24470-08
015-23100-01
015-24470-08
015-24100-08
015-25100-08
020-58100-03
015-24470-08
015-22150-01
015-21820-01
015-21820-01
015-21820-01
015-21820-01
015-21820-01
015-21820-01
015-21820-01
015-21820-01
015-21390-01
015-21390-01
CAP ELE RA 10M 16V 4X7MM
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP ELE RA 1M 50V 5X11MM
CAP ELE RA 47M 16V 6X11MM
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 47N 10% X7R 50V
CAP CER 0805 2P2+-1/4P NPO 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP ELE RA 10M 16V 4X7MM
CAP CER 1206 100N 10% X7R 50V
CAP CER 1206 100N 10% X7R 50V
CAP CER 0805 100P 5% NPO 50V
CAP ELE RA 10M 16V 4X7MM
CAP ELE RA 10M 16V 4X7MM
CAP ELE RA 10M 16V 4X7MM
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 1206 100N 10% X7R 50V
CAP ELE RA 100M 16V 8X11MM
CAP CER 0805 1N 10% X7R 50V
CAP CER 1206 100N 10% X7R 50V
CAP ELE RA 220M 16V 10X12.5MM
CAP ELE RAD 470M 16V 10X12.5MM
CAP CER 1206 100N 10% X7R 50V
CAP ELE RA 100M 16V 8X11MM
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 1206 100N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 1206 100N 10% X7R 50V
CAP ELE RA 220M 16V 10X12.5MM
CAP ELE RA 100M 16V 8X11MM
CAP ELE RA 100M 16V 8X11MM
CAP CER 1206 100N 10% X7R 50V
CAP ELE RA 4M7 63V 6X11MM BI-P
CAP ELE RA 4M7 63V 6X11MM BI-P
CAP CER 1206 100N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 1206 100N 10% X7R 50V
CAP CER 0805 47N 10% X7R 50V
CAP CER 1206 100N 10% X7R 50V
CAP CER 0805 47N 10% X7R 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 100P 5% NPO 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP ELE AI RDL 10M 50V 5X11MM
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 15P 5% NPO 50V
CAP CER 0805 8P2+-1/4P NPO 50V
CAP CER 0805 8P2+-1/4P NPO 50V
CAP CER 0805 8P2+-1/4P NPO 50V
CAP CER 0805 8P2+-1/4P NPO 50V
CAP CER 0805 8P2+-1/4P NPO 50V
CAP CER 0805 8P2+-1/4P NPO 50V
CAP CER 0805 8P2+-1/4P NPO 50V
CAP CER 0805 8P2+-1/4P NPO 50V
CAP CER 0805 3P9+-1/4P NPO 50V
CAP CER 0805 3P9+-1/4P NPO 50V
&C320
&C320
&C320
&C320
&C320
&C320
&C322
&C322
&C322
&C322
&C322
&C322
&C322
&C322
&C324
&C324
&C324
&C324
&C324
&C324
&C324
&C324
&C326
&C326
&C326
&C326
&C326
&C326
&C326
&C326
C328
C330
C331
C332
&C334
&C334
&C334
&C334
&C334
&C334
&C334
&C334
&C336
&C336
&C336
&C336
&C336
&C336
&C336
&C336
&C338
&C338
&C338
&C338
&C338
&C338
&C338
&C338
&C340
&C340
&C340
&C340
&C340
&C340
&C340
&C340
C342
C344
C346
C347
C348
C349
C350
C352
C354
C355
C356
C357
15
20
23
25
30
35
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13
15
20
23
25
30
35
10
13
15
20
23
25
30
35
10
13
15
20
23
25
30
35
015-21390-01
015-21390-01
015-21390-01
015-21390-01
015-21390-01
015-21390-01
015-22150-01
015-22150-01
015-22150-01
015-22150-01
015-22150-01
015-22150-01
015-22150-01
015-22150-01
015-21390-01
015-21390-01
015-21390-01
015-21390-01
015-21390-01
015-21390-01
015-21390-01
015-21390-01
015-21820-01
015-21820-01
015-21820-01
015-21820-01
015-21820-01
015-21820-01
015-21820-01
015-21820-01
015-24470-08
015-24100-08
015-21220-01
015-24470-08
015-22470-01
015-22470-01
015-24470-08
015-22470-01
015-22470-01
015-24470-08
015-22470-01
015-24470-08
015-22120-01
015-22120-01
015-22100-01
015-22120-01
015-22120-01
015-22100-01
015-22120-01
015-22100-01
015-22120-01
015-22120-01
015-22120-01
015-22120-01
015-22120-01
015-22100-01
015-22120-01
015-22120-01
015-22470-01
015-22470-01
015-24470-08
015-22470-01
015-22470-01
015-24470-08
015-22470-01
015-24470-08
015-24470-08
015-24470-08
015-24470-08
015-24470-08
015-24470-08
015-21270-01
015-24470-08
015-22270-01
025-08100-04
025-08100-04
015-22120-01
015-25100-08
CAP CER 0805 3P9+-1/4P NPO 50V
CAP CER 0805 3P9+-1/4P NPO 50V
CAP CER 0805 3P9+-1/4P NPO 50V
CAP CER 0805 3P9+-1/4P NPO 50V
CAP CER 0805 3P9+-1/4P NPO 50V
CAP CER 0805 3P9+-1/4P NPO 50V
CAP CER 0805 15P 5% NPO 50V
CAP CER 0805 15P 5% NPO 50V
CAP CER 0805 15P 5% NPO 50V
CAP CER 0805 15P 5% NPO 50V
CAP CER 0805 15P 5% NPO 50V
CAP CER 0805 15P 5% NPO 50V
CAP CER 0805 15P 5% NPO 50V
CAP CER 0805 15P 5% NPO 50V
CAP CER 0805 3P9+-1/4P NPO 50V
CAP CER 0805 3P9+-1/4P NPO 50V
CAP CER 0805 3P9+-1/4P NPO 50V
CAP CER 0805 3P9+-1/4P NPO 50V
CAP CER 0805 3P9+-1/4P NPO 50V
CAP CER 0805 3P9+-1/4P NPO 50V
CAP CER 0805 3P9+-1/4P NPO 50V
CAP CER 0805 3P9+-1/4P NPO 50V
CAP CER 0805 8P2+-1/4P NPO 50V
CAP CER 0805 8P2+-1/4P NPO 50V
CAP CER 0805 8P2+-1/4P NPO 50V
CAP CER 0805 8P2+-1/4P NPO 50V
CAP CER 0805 8P2+-1/4P NPO 50V
CAP CER 0805 8P2+-1/4P NPO 50V
CAP CER 0805 8P2+-1/4P NPO 50V
CAP CER 0805 8P2+-1/4P NPO 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 2P2+-1/4P NPO 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 12P 5% NPO 50V
CAP CER 0805 12P 5% NPO 50V
CAP CER 0805 10P+-1/2P NPO 50V
CAP CER 0805 12P 5% NPO 50V
CAP CER 0805 12P 5% NPO 50V
CAP CER 0805 10P+-1/2P NPO 50V
CAP CER 0805 12P 5% NPO 50V
CAP CER 0805 10P+-1/2P NPO 50V
CAP CER 0805 12P 5% NPO 50V
CAP CER 0805 12P 5% NPO 50V
CAP CER 0805 12P 5% NPO 50V
CAP CER 0805 12P 5% NPO 50V
CAP CER 0805 12P 5% NPO 50V
CAP CER 0805 10P+-1/2P NPO 50V
CAP CER 0805 12P 5% NPO 50V
CAP CER 0805 12P 5% NPO 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 2P7+-1/4P NPO 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 27P 5% NPO 50V
(L) CAP10M 35V 10%TANT2.5L/S
(L) CAP10M 35V 10%TANT2.5L/S
CAP CER 0805 12P 5% NPO 50V
CAP CER 0805 10N 10% X7R 50V
© Copyright Tait Electronics Limited August 2004. All rights reserved.
10
13
15
20
23
25
30
35
10
13
15
20
23
25
30
35
10
13
15
20
23
25
30
35
10
13
15
20
23
25
30
35
IPN 220-01396-03
B6.3.4
Ref
C358
C359
C360
C361
C362
C364
C366
C367
C368
C370
C372
C374
C376
C378
C380
C382
C384
C386
C388
C390
C392
C394
C410
C420
C430
C440
C450
C470
C480
C505
C515
C530
C535
C610A
C610B
C611A
C611B
C623
C625
C626
C628
C630
C631A
C631B
C637
C640
C651
C658
C660
C665
C670
C673
C677
C681
C684
C687
C690
C693
C700
C702
C703
C705
C707
C708
C709
C710A
C710B
C710C
C711
C712
C713
C735
C736
C740A
C740B
C741A
C741B
C742A
C742B
C743
C745
C750
C757
C759
C761
C762
C764
C765
C767
C769
C770
C772
C774
C776
C782
C784
C786
C788
Var
T855 PCB Information
M8SL2-00-002-812
IPN
Description
Ref
IPN
Description
015-25470-08
025-08100-04
015-24470-08
015-26100-08
015-25100-08
015-22390-01
015-22390-01
015-25100-08
015-05470-08
015-24470-08
015-05470-08
015-24470-08
015-23120-01
015-23120-01
015-25100-08
020-58100-03
015-05470-08
015-05470-08
015-24470-08
025-08100-02
015-24470-08
015-05470-08
015-21180-01
015-22470-01
015-23100-01
020-58100-03
015-22470-01
015-22100-01
015-22560-01
015-06100-08
015-06100-08
014-08220-01
015-06100-08
015-25100-08
020-09100-04
020-09100-04
015-25100-08
015-23120-01
020-09470-07
015-24470-08
015-24100-08
015-06100-08
015-06100-08
025-08100-02
015-23120-01
015-24100-08
015-06100-08
015-06100-08
015-06100-08
020-58100-03
025-07330-01
015-24470-08
020-07100-02
015-06100-08
025-08100-02
015-24100-08
015-06100-08
025-08100-02
015-06100-08
015-24100-08
015-24100-08
015-21820-01
015-22470-01
015-22470-01
015-22100-01
014-07470-00
015-06100-08
015-25100-08
015-22220-01
015-22220-01
015-25100-08
015-22470-01
015-22470-01
015-24100-08
015-25100-08
014-07470-00
015-25100-08
015-06100-08
015-25100-08
015-22470-01
015-23120-01
025-08100-03
015-25100-08
015-25100-08
015-25100-08
014-08220-01
015-25100-08
014-07470-00
015-24100-08
015-24100-08
014-08220-01
014-08220-01
022-06100-16
015-24680-08
015-23120-01
015-23120-01
015-06100-08
015-23120-01
CAP CER 0805 47N 10% X7R 50V
(L) CAP10M 35V 10%TANT2.5L/S
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 39P 5% NPO 50V
CAP CER 0805 39P 5% NPO 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 1206 47N 10% X7R 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 1206 47N 10% X7R 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 120P 5% NPO 50V
CAP CER 0805 120P 5% NPO 50V
CAP CER 0805 10N 10% X7R 50V
CAP ELE AI RDL 10M 50V 5X11MM
CAP CER 1206 47N 10% X7R 50V
CAP CER 1206 47N 10% X7R 50V
CAP CER 0805 4N7 10% X7R 50V
CAP TANT BEAD 10M 10% 16V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 1206 47N 10% X7R 50V
CAP CER 0805 1P8+-1/4P NPO 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 100P 5% NPO 50V
CAP ELE AI RDL 10M 50V 5X11MM
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 10P+-1/2P NPO 50V
CAP CER 0805 56P 5% NPO 50V
CAP CER 1206 100N 10% X7R 50V
CAP CER 1206 100N 10% X7R 50V
(L)CAP TANT 22UF10V276MSER
CAP CER 1206 100N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP ELE RA 100M 10V 6.3X9MM
CAP ELE RA 100M 10V 6.3X9MM
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 120P 5% NPO 50V
CAPEL470M16V20%V 8*20 3.5L.ESR
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 1206 100N 10% X7R 50V
CAP CER 1206 100N 10% X7R 50V
CAP TANT BEAD 10M 10% 16V
CAP CER 0805 120P 5% NPO 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 1206 100N 10% X7R 50V
CAP CER 1206 100N 10% X7R 50V
CAP CER 1206 100N 10% X7R 50V
CAP ELE AI RDL 10M 50V 5X11MM
CAP TANT BEAD 3M3 35V
CAP CER 0805 4N7 10% X7R 50V
CAP ELE RA 1M 50V 5X11MM
CAP CER 1206 100N 10% X7R 50V
CAP TANT BEAD 10M 10% 16V
CAP CER 0805 1N 10% X7R 50V
CAP CER 1206 100N 10% X7R 50V
CAP TANT BEAD 10M 10% 16V
CAP CER 1206 100N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 8P2+-1/4P NPO 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 10P+-1/2P NPO 50V
CAP TANT CHIP 4U7 3.5 X 2.8MM
CAP CER 1206 100N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 22P 5% NPO 50V
CAP CER 0805 22P 5% NPO 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP TANT CHIP 4U7 3.5 X 2.8MM
CAP CER 0805 10N 10% X7R 50V
CAP CER 1206 100N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 120P 5% NPO 50V
CAP 10M 35V 20% TANT 5MM L/S
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
(L)CAP TANT 22UF10V276MSER
CAP CER 0805 10N 10% X7R 50V
CAP TANT CHIP 4U7 3.5 X 2.8MM
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
(L)CAP TANT 22UF10V276MSER
(L)CAP TANT 22UF10V276MSER
CAP METAL POLY 100N +-10% 100V
CAP CER 0805 6N8 10% X7R 50V
CAP CER 0805 120P 5% NPO 50V
CAP CER 0805 120P 5% NPO 50V
CAP CER 1206 100N 10% X7R 50V
CAP CER 0805 120P 5% NPO 50V
C791
C792
C810
C812
C813
C814
C815
C816
C818
C819
C820
C822
C824
C826
C828
C830
C832
C833
C834
C836
C837
C838
C840
C842
C844
C846
C848
C850
C873
C876
C879
C910
C920
C930
C940
C950
015-21820-01
015-23120-01
015-25100-08
015-23100-01
015-24100-08
015-24100-08
015-05100-07
015-25100-08
015-25100-08
015-22330-01
015-23220-01
015-25220-08
015-25470-08
015-05100-07
015-05100-07
015-25470-08
016-07100-01
015-25220-08
015-25100-08
015-05100-07
015-05100-07
015-05100-07
015-25470-08
016-07100-01
016-07100-01
016-07100-01
016-07100-01
015-25470-08
015-25220-08
020-09100-04
020-08100-04
015-21330-01
015-21680-01
015-21820-01
015-21680-01
015-21330-01
CAP CER 0805 8P2+-1/4P NPO 50V
CAP CER 0805 120P 5% NPO 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 100P 5% NPO 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP 1206 CHIP NPO 10nF 25V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 33P 5% NPO 50V
CAP CER 0805 220P 5% NPO 50V
CAP CER 0805 22N 10% X7R 50V
CAP CER 0805 47N 10% X7R 50V
CAP 1206 CHIP NPO 10nF 25V
CAP 1206 CHIP NPO 10nF 25V
CAP CER 0805 47N 10% X7R 50V
CAP EL 6X4 1M 20% 50V
CAP CER 0805 22N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP 1206 CHIP NPO 10nF 25V
CAP 1206 CHIP NPO 10nF 25V
CAP 1206 CHIP NPO 10nF 25V
CAP CER 0805 47N 10% X7R 50V
CAP EL 6X4 1M 20% 50V
CAP EL 6X4 1M 20% 50V
CAP EL 6X4 1M 20% 50V
CAP EL 6X4 1M 20% 50V
CAP CER 0805 47N 10% X7R 50V
CAP CER 0805 22N 10% X7R 50V
CAP ELE RA 100M 10V 6.3X9MM
CAP ELE RA 10M 16V 4X7MM
CAP CER 0805 3P3+-1/4P NPO 50V
CAP CER 0805 6P8+-1/4P NPO 50V
CAP CER 0805 8P2+-1/4P NPO 50V
CAP CER 0805 6P8+-1/4P NPO 50V
CAP CER 0805 3P3+-1/4P NPO 50V
D111
D220
D230
D240
D250
D260
D270
D280
D285
D289
D290
D295
D310
D350
D610
D640
D730
D740
D820
D860
D880
001-00011-60
001-10000-56
001-10000-70
001-10000-99
008-00014-79
001-10084-33
001-10000-70
008-00014-80
001-00011-70
001-00011-70
001-00011-70
001-00011-70
001-10000-56
001-10000-17
001-10000-99
001-10000-70
001-10065-00
001-10065-00
001-10065-00
001-10000-70
001-10000-70
S) DIODE MR750 OR SR2607
S) DIODE SMD BAW56 D-SW SOT23
S) DIODE SMD BAV70 D-SW SOT23
S) DIODE SMD BAV99 D-SW SOT23
S)LED 3MM RED WITH WIRE
S)DIODE ZENSMD BZX84C3V3 SOT23
S) DIODE SMD BAV70 D-SW SOT23
S)LED 3MM GREEN WITH WIRE
S) DIODE 1N4001 1A/50V
S) DIODE 1N4001 1A/50V
S) DIODE 1N4001 1A/50V
S) DIODE 1N4001 1A/50V
S) DIODE SMD BAW56 D-SW SOT23
S) DIODE SMD DUAL BAT-17 SOT23
S) DIODE SMD BAV99 D-SW SOT23
S) DIODE SMD BAV70 D-SW SOT23
DIODE SHTKY SOD123 BAT65 BAT54
DIODE SHTKY SOD123 BAT65 BAT54
DIODE SHTKY SOD123 BAT65 BAT54
S) DIODE SMD BAV70 D-SW SOT23
S) DIODE SMD BAV70 D-SW SOT23
051-00576-00
051-00576-00
051-00576-00
051-00577-00
051-00577-00
051-00577-00
051-00578-00
051-00578-00
051-00576-00
051-00576-00
051-00576-00
051-00577-00
051-00577-00
051-00577-00
051-00578-00
051-00578-00
COIL HELIC 400-440MHz T855SII
COIL HELIC 400-440MHz T855SII
COIL HELIC 400-440MHz T855SII
COIL HELIC 440-480MHz T855SII
COIL HELIC 440-480MHz T855SII
COIL HELIC 440-480MHz T855SII
COIL HELIC 480-530MHz T855SII
COIL HELIC 480-530MHz T855SII
COIL HELIC 400-440MHz T855SII
COIL HELIC 400-440MHz T855SII
COIL HELIC 400-440MHz T855SII
COIL HELIC 440-480MHz T855SII
COIL HELIC 440-480MHz T855SII
COIL HELIC 440-480MHz T855SII
COIL HELIC 480-530MHz T855SII
COIL HELIC 480-530MHz T855SII
002-00012-40
002-00014-05
002-00014-05
002-00012-40
002-00012-40
002-00014-73
002-00014-58
002-00022-01
002-00014-58
002-00014-62
002-10003-58
002-10012-32
539-00010-50
002-74900-04
002-14519-10
002-10330-78
002-08951-20
002-12416-00
002-10003-24
002-10040-53
002-10003-24
S) IC 358 DUAL O-AMP
S) IC TDA7231 1.6W AF PWR
S) IC TDA7231 1.6W AF PWR
S) IC 358 DUAL O-AMP
S) IC 358 DUAL O-AMP
S) IC MC3361CP IF AMP
S) IC 78L05 5V 100MA REG TO92
S)MIXER DBLE TAK BLNCD2-750MHZ
S) IC 78L05 5V 100MA REG TO92
S) IC 317L 100MA REG 3TER TO92
S) IC SMD LM358 DUAL O-AMP
SMD DS1232LPS-2 LP RESET&W-DOG
TCXO 12.8MHZ +-1PPM -20 +70C
S) IC SMD 74HC04D 6X INV BUFFD
S) IC MC145191F SMD SYNTH
S) IC MC33078D 2X AMP LO NOISE
S) IC AT89C51 PLCC44 MIC 12MHZ
S)IC SMD AT24C16N-10SC EEPROM
S) IC SMD 324 4X O-AMP SO14
S)MC14053B SMD BREAK B4 MAKE
S) IC SMD 324 4X O-AMP SO14
#FL410
#FL410
#FL410
#FL410
#FL410
#FL410
#FL410
#FL410
#FL420
#FL420
#FL420
#FL420
#FL420
#FL420
#FL420
#FL420
IC210
IC240
IC260
IC270
IC280
IC310
IC320
IC410
IC610
IC630
IC640
IC650
=IC700
IC710
IC740
IC750
IC810
IC820
IC830
IC840
IC850
Var
10
13
15
20
23
25
30
35
10
13
15
20
23
25
30
35
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01396-03
T855 PCB Information
M8SL2-00-002-812
Ref
IPN
Description
Ref
Var
IPN
Description
L230
L310
L320
L330
L340
L350
L360
L370
L380
L385
L390
L420
L440
L740
L910
L920
L930
L940
056-00021-02
050-00016-22
050-00016-22
050-00016-22
050-00016-22
050-00016-22
050-00016-22
050-00016-22
050-00016-22
050-00016-22
050-00016-31
056-00021-04
056-00021-04
052-08125-15
052-08125-25
052-08140-15
052-08140-15
052-08125-25
IND FXD 100UH AX
COIL TAIT NO 622 20-120M
COIL TAIT NO 622 20-120M
COIL TAIT NO 622 20-120M
COIL TAIT NO 622 20-120M
COIL TAIT NO 622 20-120M
COIL TAIT NO 622 20-120M
COIL TAIT NO 622 20-120M
COIL TAIT NO 622 20-120M
COIL TAIT NO 622 20-120M
COIL TAIT NO 631 455KHZ
IND FXD 330NH AX
IND FXD 330NH AX
COIL A/W 1.5T/2.5MM HOR 0.8MM
COIL A/W 2.5T/2.5MM HOR 0.8MM
COIL A/W 1.5T/4.0MM HOR 0.8MM
COIL A/W 1.5T/4.0MM HOR 0.8MM
COIL A/W 2.5T/2.5MM HOR 0.8MM
20
23
25
30
35
PL200
PL210
PL220
PL230
PL240
PL250
PL260
PL270
240-00020-72
240-00020-59
240-00020-59
240-00020-63
240-00020-58
240-00020-59
240-00020-59
240-00020-59
HEADER 2W PCB MG ULTREX
HEADER 3 W 1 R PCB MTG
HEADER 3 W 1 R PCB MTG
HEADER 4 W X1R PCB MTG
HEADER 5 WX1 R PCB MTG
HEADER 3 W 1 R PCB MTG
HEADER 3 W 1 R PCB MTG
HEADER 3 W 1 R PCB MTG
Q210
Q220
Q230
Q240
Q245
Q250
Q255
Q260
Q270
Q280
Q290
Q310
Q320
Q350
Q340
Q350
Q360
Q410
Q540
Q620
Q630
Q660
Q670
Q750
Q760
Q770
Q775
Q780
Q785
Q790
Q795
Q810
Q820
Q840
Q850
Q860
Q870
Q880
Q890
Q895
000-10008-48
000-10008-48
000-10008-48
000-10008-57
000-10008-57
000-10008-48
000-10008-57
000-10008-48
000-10008-17
000-10008-48
000-10008-48
000-50020-18
000-10008-92
000-10009-91
000-10008-48
000-10008-48
000-10008-48
000-10057-10
000-10008-48
000-00012-15
000-50011-30
000-10008-17
000-10008-57
000-10008-07
000-10008-48
000-10008-57
000-10008-57
000-10008-48
000-10008-57
000-10003-12
000-10057-10
000-10008-17
000-10008-57
000-10008-57
000-10008-48
000-10008-57
000-10008-48
000-10008-48
000-10008-48
000-10008-48
S) XSTR SMD BCW60 NPN SOT23 SS
S) XSTR SMD BCW60 NPN SOT23 SS
S) XSTR SMD BCW60 NPN SOT23 SS
S) XSTR SMD BCW70 PNP SOT23 SS
S) XSTR SMD BCW70 PNP SOT23 SS
S) XSTR SMD BCW60 NPN SOT23 SS
S) XSTR SMD BCW70 PNP SOT23 SS
S) XSTR SMD BCW60 NPN SOT23 SS
S) XSTR SMD BC817-25 NPN SOT23
S) XSTR SMD BCW60 NPN SOT23 SS
S) XSTR SMD BCW60 NPN SOT23 SS
S) XSTR AI BF247A JFETTO92 VHF
S) XSTR SMD BFS17 NPN SOT23
S) XSTR SMD BF991 DG MFET
S) XSTR SMD BCW60 NPN SOT23 SS
S) XSTR SMD BCW60 NPN SOT23 SS
S) XSTR SMD BCW60 NPN SOT23 SS
S) XSTR SMD BR571 NPN SOT23
S) XSTR SMD BCW60 NPN SOT23 SS
S) XSTR BD234 PNP AF PWR TO126
S) XSTR AI BC557B PNP TO92 AF
S) XSTR SMD BC817-25 NPN SOT23
S) XSTR SMD BCW70 PNP SOT23 SS
S) XSTR SMD BC807 PNP SOT23 AF
S) XSTR SMD BCW60 NPN SOT23 SS
S) XSTR SMD BCW70 PNP SOT23 SS
S) XSTR SMD BCW70 PNP SOT23 SS
S) XSTR SMD BCW60 NPN SOT23 SS
S) XSTR SMD BCW70 PNP SOT23 SS
S) XSTR SMD BFR31 N JFET SOT23
S) XSTR SMD BR571 NPN SOT23
S) XSTR SMD BC817-25 NPN SOT23
S) XSTR SMD BCW70 PNP SOT23 SS
S) XSTR SMD BCW70 PNP SOT23 SS
S) XSTR SMD BCW60 NPN SOT23 SS
S) XSTR SMD BCW70 PNP SOT23 SS
S) XSTR SMD BCW60 NPN SOT23 SS
S) XSTR SMD BCW60 NPN SOT23 SS
S) XSTR SMD BCW60 NPN SOT23 SS
S) XSTR SMD BCW60 NPN SOT23 SS
036-12100-00
036-14470-00
036-14470-00
036-14470-00
036-14330-00
036-14470-00
036-14470-00
036-14330-00
036-14470-00
036-14330-00
036-15100-00
036-16220-00
036-14820-00
036-15220-00
036-15220-00
036-15180-00
036-15220-00
036-15220-00
036-15180-00
036-15220-00
036-15180-00
036-15150-00
036-15390-00
036-14270-00
036-15150-00
036-14390-00
036-14820-00
036-14820-00
036-14470-00
RES M/F 0805 10E 5%
RES M/F 0805 4K7 5%
RES M/F 0805 4K7 5%
RES M/F 0805 4K7 5%
RES M/F 0805 3K3 5%
RES M/F 0805 4K7 5%
RES M/F 0805 4K7 5%
RES M/F 0805 3K3 5%
RES M/F 0805 4K7 5%
RES M/F 0805 3K3 5%
RES M/F 0805 10K 5%
RES M/F 0805 220K 5%
RES M/F 0805 8K2 5%
RES M/F 0805 22K 5%
RES M/F 0805 22K 5%
RES M/F 0805 18K 5%
RES M/F 0805 22K 5%
RES M/F 0805 22K 5%
RES M/F 0805 18K 5%
RES M/F 0805 22K 5%
RES M/F 0805 18K 5%
RES M/F 0805 15K 5%
RES M/F 0805 39K 5%
RES M/F 0805 2K7 5%
RES M/F 0805 15K 5%
RES M/F 0805 3K9 5%
RES M/F 0805 8K2 5%
RES M/F 0805 8K2 5%
RES M/F 0805 4K7 5%
&R219
&R219
&R219
&R219
&R219
R221
R222
%R223
R224
R225
R227
R229
R230
R232
R233
R234
R236
R238
R239
R241
R242
R244
R245
R247
R249
R251
R252
R254
R255
R256
R258
R260
R261
R262
R264
R265
R266
R267
R269
R271
R272
R273
R275
R277
R278
R280
R281
R282
R284
R285
R287
R288
R289
R290
R292
R293
R294
R295
R296
R297
R298
R299
R302
R304
R306
R308
R310
R312
R314
R316
R318
R320
R322
R323
R324
R326
R328
R330
R332
R334
R336
R337
R338
R339
R340
R341
&R344
&R344
&R344
&R344
&R344
&R344
&R344
&R344
R346
R348
R350
R351
036-14820-00
036-14820-00
036-14470-00
036-14820-00
036-14470-00
036-15470-00
036-16100-00
036-12100-00
036-14390-00
036-13470-00
036-14100-00
036-14470-00
036-14470-00
036-15470-00
036-14820-00
036-15470-00
036-15470-00
036-11470-00
036-14100-00
036-14100-00
036-13100-00
036-14680-00
036-14100-00
036-14220-00
036-15100-00
036-15390-00
036-14470-00
036-14820-00
036-15470-00
036-14470-00
036-15470-00
036-11470-00
036-13150-00
036-14100-00
036-15270-00
036-13100-00
036-15220-00
036-16330-00
036-14220-00
036-16100-00
036-15470-00
036-15150-00
036-13100-00
036-14560-00
036-16220-00
036-16100-00
036-14470-00
036-16100-00
036-13100-00
036-15470-00
036-15100-00
036-14470-00
036-14680-00
036-14100-00
036-14680-00
036-13560-00
036-14100-00
036-14680-00
036-14120-00
030-52100-20
036-15470-00
036-15470-00
036-12390-00
036-14270-00
036-12100-00
036-12100-00
036-10000-00
036-14330-00
036-14470-00
036-12470-00
036-15100-00
036-14390-00
036-14820-00
036-15100-00
036-15220-00
036-15100-00
036-14100-00
036-12470-00
036-13330-00
045-03150-01
036-13470-00
036-13220-00
036-14100-00
036-15100-00
036-10000-00
036-10000-00
036-15560-00
036-15560-00
036-15820-00
036-15560-00
036-15560-00
036-15820-00
036-15560-00
036-15820-00
036-12100-00
036-13220-00
036-15180-00
036-15100-00
RES M/F 0805 8K2 5%
RES M/F 0805 8K2 5%
RES M/F 0805 4K7 5%
RES M/F 0805 8K2 5%
RES M/F 0805 4K7 5%
RES M/F 0805 47K 5%
RES M/F 0805 100K 5%
RES M/F 0805 10E 5%
RES M/F 0805 3K9 5%
RES M/F 0805 470E 5%
RES M/F 0805 1K 5%
RES M/F 0805 4K7 5%
RES M/F 0805 4K7 5%
RES M/F 0805 47K 5%
RES M/F 0805 8K2 5%
RES M/F 0805 47K 5%
RES M/F 0805 47K 5%
RES M/F 0805 4E7 10%
RES M/F 0805 1K 5%
RES M/F 0805 1K 5%
RES M/F 0805 100E 5%
RES M/F 0805 6K8 5%
RES M/F 0805 1K 5%
RES M/F 0805 2K2 5%
RES M/F 0805 10K 5%
RES M/F 0805 39K 5%
RES M/F 0805 4K7 5%
RES M/F 0805 8K2 5%
RES M/F 0805 47K 5%
RES M/F 0805 4K7 5%
RES M/F 0805 47K 5%
RES M/F 0805 4E7 10%
RES M/F 0805 150E 5%
RES M/F 0805 1K 5%
RES M/F 0805 27K 5%
RES M/F 0805 100E 5%
RES M/F 0805 22K 5%
RES M/F 0805 330K 5%
RES M/F 0805 2K2 5%
RES M/F 0805 100K 5%
RES M/F 0805 47K 5%
RES M/F 0805 15K 5%
RES M/F 0805 100E 5%
RES M/F 0805 5K6 5%
RES M/F 0805 220K 5%
RES M/F 0805 100K 5%
RES M/F 0805 4K7 5%
RES M/F 0805 100K 5%
RES M/F 0805 100E 5%
RES M/F 0805 47K 5%
RES M/F 0805 10K 5%
RES M/F 0805 4K7 5%
RES M/F 0805 6K8 5%
RES M/F 0805 1K 5%
RES M/F 0805 6K8 5%
RES M/F 0805 560E 5%
RES M/F 0805 1K 5%
RES M/F 0805 6K8 5%
RES M/F 0805 1K2 5%
RES FILM AI 10E 5% 0.4W 4X1.6
RES M/F 0805 47K 5%
RES M/F 0805 47K 5%
RES M/F 0805 39E 5%
RES M/F 0805 2K7 5%
RES M/F 0805 10E 5%
RES M/F 0805 10E 5%
RES M/F 0805 ZERO OHM
RES M/F 0805 3K3 5%
RES M/F 0805 4K7 5%
RES M/F 0805 47E 5%
RES M/F 0805 10K 5%
RES M/F 0805 3K9 5%
RES M/F 0805 8K2 5%
RES M/F 0805 10K 5%
RES M/F 0805 22K 5%
RES M/F 0805 10K 5%
RES M/F 0805 1K 5%
RES M/F 0805 47E 5%
RES M/F 0805 330E 5%
RES NTC 150E 0.5W 5MM DISC
RES M/F 0805 470E 5%
RES M/F 0805 220E 5%
RES M/F 0805 1K 5%
RES M/F 0805 10K 5%
RES M/F 0805 ZERO OHM
RES M/F 0805 ZERO OHM
RES M/F 0805 56K 5%
RES M/F 0805 56K 5%
RES M/F 0805 82K 5%
RES M/F 0805 56K 5%
RES M/F 0805 56K 5%
RES M/F 0805 82K 5%
RES M/F 0805 56K 5%
RES M/F 0805 82K 5%
RES M/F 0805 10E 5%
RES M/F 0805 220E 5%
RES M/F 0805 18K 5%
RES M/F 0805 10K 5%
R160
R201
&R202
&R202
&R202
&R202
&R202
&R202
&R202
&R202
R204
R205
R207
&R209
&R209
&R209
&R209
&R209
&R209
&R209
&R209
R210
R211
R213
R215
R218
&R219
&R219
&R219
Var
10
13
15
20
23
25
30
35
10
13
15
20
23
25
30
35
10
13
15
© Copyright Tait Electronics Limited August 2004. All rights reserved.
10
13
15
20
23
25
30
35
B6.3.5
IPN 220-01396-03
B6.3.6
Ref
R352
R353
R354
R356
R358
R360
R362
R364
R365
R366
R367
R368
R370
R372
R374
R376
R378
R380
R382
R384
R386
R388
R390
R392
R393
R394
R395
R396
R397
R398
R399
R405
R410
R415
R420
R425
R430
R435
R440
R445
R450
R455
R460
R465
R470
R475
R510
R515
R555
R615
R617
R619
R621
R625
R629
R633
R636
R637
R641
R645
R649
R653
R681
R685
R689
R693
R696
R701
R702
R703
R706
R707
R708
R709
R710
R711
R712
R742
R743
R744
R746
R747
R748
R749
R750
R752
R753
R754
R756
R757
R758
R759
R760
R762
R763
R765
R766
R767
Var
T855 PCB Information
M8SL2-00-002-812
IPN
Description
Ref
IPN
Description
036-16390-00
036-10000-00
036-17100-00
036-13180-00
036-12470-00
036-15150-00
036-14330-00
036-14100-00
036-16150-00
036-14330-00
036-16150-00
036-15220-00
036-16100-00
036-14270-00
036-14100-00
036-10000-00
036-16100-00
036-15100-00
036-15470-00
036-15470-00
036-15120-00
036-15100-00
045-05100-01
036-10000-00
036-15100-00
036-12470-00
036-10000-00
036-13390-00
036-13820-00
036-14220-00
045-05100-01
036-10000-00
036-10000-00
036-13330-00
036-12100-00
036-14100-00
036-13150-00
036-12100-00
036-10000-00
036-13470-00
036-12100-00
036-13470-00
036-13180-00
036-12330-00
036-13180-00
036-12470-00
036-14220-00
036-12560-00
036-13470-00
036-13100-00
036-10000-00
032-31100-00
032-31100-00
036-14100-00
032-33270-00
036-14680-00
036-12330-00
036-12330-00
036-14150-00
036-13470-00
036-14470-00
036-15100-00
036-13100-00
036-15150-00
036-12100-00
036-16100-00
036-15560-00
036-12220-00
036-17100-00
036-17100-00
036-15150-00
036-15470-00
036-13100-00
036-13100-00
036-13100-00
036-13100-00
036-12100-00
036-13150-00
036-13150-00
036-12220-00
036-12220-00
036-12220-00
036-15470-00
036-15470-00
036-12220-00
036-12220-00
036-17100-00
036-14100-00
036-16470-00
036-16470-00
036-14120-00
036-13330-00
036-13180-00
036-13100-00
036-13100-00
036-13680-00
036-14100-00
036-13680-00
RES M/F 0805 390K 5%
RES M/F 0805 ZERO OHM
RES M/F 0805 1M 5%
RES M/F 0805 180E 5%
RES M/F 0805 47E 5%
RES M/F 0805 15K 5%
RES M/F 0805 3K3 5%
RES M/F 0805 1K 5%
RES M/F 0805 150K 5%
RES M/F 0805 3K3 5%
RES M/F 0805 150K 5%
RES M/F 0805 22K 5%
RES M/F 0805 100K 5%
RES M/F 0805 2K7 5%
RES M/F 0805 1K 5%
RES M/F 0805 ZERO OHM
RES M/F 0805 100K 5%
RES M/F 0805 10K 5%
RES M/F 0805 47K 5%
RES M/F 0805 47K 5%
RES M/F 0805 12K 5%
RES M/F 0805 10K 5%
RES NTC 10K 5% 5MM DISC
RES M/F 0805 ZERO OHM
RES M/F 0805 10K 5%
RES M/F 0805 47E 5%
RES M/F 0805 ZERO OHM
RES M/F 0805 390E 5%
RES M/F 0805 820E 5%
RES M/F 0805 2K2 5%
RES NTC 10K 5% 5MM DISC
RES M/F 0805 ZERO OHM
RES M/F 0805 ZERO OHM
RES M/F 0805 330E 5%
RES M/F 0805 10E 5%
RES M/F 0805 1K 5%
RES M/F 0805 150E 5%
RES M/F 0805 10E 5%
RES M/F 0805 ZERO OHM
RES M/F 0805 470E 5%
RES M/F 0805 10E 5%
RES M/F 0805 470E 5%
RES M/F 0805 180E 5%
RES M/F 0805 33E 5%
RES M/F 0805 180E 5%
RES M/F 0805 47E 5%
RES M/F 0805 2K2 5%
RES M/F 0805 56E 5%
RES M/F 0805 470E 5%
RES M/F 0805 100E 5%
RES M/F 0805 ZERO OHM
RES M/F PWR 1E0 5% 1W 12X4.5MM
RES M/F PWR 1E0 5% 1W 12X4.5MM
RES M/F 0805 1K 5%
RES M/F PWR 270E 5% 1W 12X4.5
RES M/F 0805 6K8 5%
RES M/F 0805 33E 5%
RES M/F 0805 33E 5%
RES M/F 0805 1K5 5%
RES M/F 0805 470E 5%
RES M/F 0805 4K7 5%
RES M/F 0805 10K 5%
RES M/F 0805 100E 5%
RES M/F 0805 15K 5%
RES M/F 0805 10E 5%
RES M/F 0805 100K 5%
RES M/F 0805 56K 5%
RES M/F 0805 22E 5%
RES M/F 0805 1M 5%
RES M/F 0805 1M 5%
RES M/F 0805 15K 5%
RES M/F 0805 47K 5%
RES M/F 0805 100E 5%
RES M/F 0805 100E 5%
RES M/F 0805 100E 5%
RES M/F 0805 100E 5%
RES M/F 0805 10E 5%
RES M/F 0805 150E 5%
RES M/F 0805 150E 5%
RES M/F 0805 22E 5%
RES M/F 0805 22E 5%
RES M/F 0805 22E 5%
RES M/F 0805 47K 5%
RES M/F 0805 47K 5%
RES M/F 0805 22E 5%
RES M/F 0805 22E 5%
RES M/F 0805 1M 5%
RES M/F 0805 1K 5%
RES M/F 0805 470K 5%
RES M/F 0805 470K 5%
RES M/F 0805 1K2 5%
RES M/F 0805 330E 5%
RES M/F 0805 180E 5%
RES M/F 0805 100E 5%
RES M/F 0805 100E 5%
RES M/F 0805 680E 5%
RES M/F 0805 1K 5%
RES M/F 0805 680E 5%
R769
R771
R772
R774
R775
R780
R782
R784
R785
R786
R787
R790
R791
R804
R805
R808
R809
R810
R811
R812
R813
R815
R816
R818
R819
R820
R821
R822
R823
R824
R825
R826
R827
R828
R829
R830
R831
R832
R833
R835
R836
R837
R840
R841
R842
R843
R844
R845
R846
R847
R848
R849
R850
R851
R852
R853
R854
R855
R856
R857
R858
R859
R860
R861
R863
R865
R866
R867
R868
R869
R870
R871
R872
R873
R875
R876
R877
R878
R879
R881
R882
R884
R885
R886
R887
R888
R889
R890
R891
R892
R894
R895
R897
R898
Var
036-13180-00
036-14820-00
036-15220-00
036-14820-00
036-15180-00
036-12680-00
036-12180-00
036-13120-00
036-14330-00
036-12100-00
036-12100-00
036-13390-00
036-14100-00
036-15470-00
036-13470-00
036-12100-00
036-14470-00
036-14470-00
036-14470-00
036-14470-00
036-14470-00
036-15470-00
036-16150-00
036-14470-00
036-14470-00
036-15470-00
036-15470-00
036-15470-00
036-15470-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-15470-00
036-16150-00
036-14470-00
036-14470-00
036-13470-00
036-13470-00
036-13470-00
036-13470-00
036-14470-00
036-13470-00
036-16330-00
036-15470-00
036-16150-00
036-16150-00
036-15270-10
036-17120-10
036-16820-10
036-14510-10
036-14470-00
036-14270-00
036-16820-00
036-16820-00
036-14470-00
036-15270-10
036-17120-10
036-16820-10
036-14510-10
036-14220-00
036-14470-00
036-16100-00
036-16100-00
036-16100-00
036-16100-00
036-15470-00
036-15470-00
036-16150-00
036-16150-00
036-15100-10
036-14100-10
036-14820-10
036-16100-00
036-16150-00
036-16100-00
036-16330-00
036-14470-00
036-15100-00
036-15100-00
036-16470-00
RES M/F 0805 180E 5%
RES M/F 0805 8K2 5%
RES M/F 0805 22K 5%
RES M/F 0805 8K2 5%
RES M/F 0805 18K 5%
RES M/F 0805 68E 5%
RES M/F 0805 18E 5%
RES M/F 0805 120E 5%
RES M/F 0805 3K3 5%
RES M/F 0805 10E 5%
RES M/F 0805 10E 5%
RES M/F 0805 390E 5%
RES M/F 0805 1K 5%
RES M/F 0805 47K 5%
RES M/F 0805 470E 5%
RES M/F 0805 10E 5%
RES M/F 0805 4K7 5%
RES M/F 0805 4K7 5%
RES M/F 0805 4K7 5%
RES M/F 0805 4K7 5%
RES M/F 0805 4K7 5%
RES M/F 0805 47K 5%
RES M/F 0805 150K 5%
RES M/F 0805 4K7 5%
RES M/F 0805 4K7 5%
RES M/F 0805 47K 5%
RES M/F 0805 47K 5%
RES M/F 0805 47K 5%
RES M/F 0805 47K 5%
RES M/F 0805 2K2 5%
RES M/F 0805 2K2 5%
RES M/F 0805 2K2 5%
RES M/F 0805 2K2 5%
RES M/F 0805 2K2 5%
RES M/F 0805 2K2 5%
RES M/F 0805 2K2 5%
RES M/F 0805 2K2 5%
RES M/F 0805 2K2 5%
RES M/F 0805 2K2 5%
RES M/F 0805 2K2 5%
RES M/F 0805 2K2 5%
RES M/F 0805 2K2 5%
RES M/F 0805 2K2 5%
RES M/F 0805 2K2 5%
RES M/F 0805 2K2 5%
RES M/F 0805 2K2 5%
RES M/F 0805 47K 5%
RES M/F 0805 150K 5%
RES M/F 0805 4K7 5%
RES M/F 0805 4K7 5%
RES M/F 0805 470E 5%
RES M/F 0805 470E 5%
RES M/F 0805 470E 5%
RES M/F 0805 470E 5%
RES M/F 0805 4K7 5%
RES M/F 0805 470E 5%
RES M/F 0805 330K 5%
RES M/F 0805 47K 5%
RES M/F 0805 150K 5%
RES M/F 0805 150K 5%
RES M/F 0805 27K 1%
RES MF 0805 CHIP 1M2 1%
RES MF 0805 CHIP 820K 1%
RES MF 0805 CHIP 5K1 1%
RES M/F 0805 4K7 5%
RES M/F 0805 2K7 5%
RES M/F 0805 820K 5%
RES M/F 0805 820K 5%
RES M/F 0805 4K7 5%
RES M/F 0805 27K 1%
RES MF 0805 CHIP 1M2 1%
RES MF 0805 CHIP 820K 1%
RES MF 0805 CHIP 5K1 1%
RES M/F 0805 2K2 5%
RES M/F 0805 4K7 5%
RES M/F 0805 100K 5%
RES M/F 0805 100K 5%
RES M/F 0805 100K 5%
RES M/F 0805 100K 5%
RES M/F 0805 47K 5%
RES M/F 0805 47K 5%
RES M/F 0805 150K 5%
RES M/F 0805 150K 5%
RES M/F 0805 10K 1%
RES M/F 0805 CHIP 1K 1%
RES M/F 0805 8K2 1%
RES M/F 0805 100K 5%
RES M/F 0805 150K 5%
RES M/F 0805 100K 5%
RES M/F 0805 330K 5%
RES M/F 0805 4K7 5%
RES M/F 0805 10K 5%
RES M/F 0805 10K 5%
RES M/F 0805 470K 5%
RL210
237-00010-22
RELAY 12V DPDT 8PIN DIL PCB MT
RV205
040-05100-22
POT 10K LOG DUAL PCB 6 OD SFT
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01396-03
T855 PCB Information
M8SL2-00-002-812
Ref
IPN
Description
IPN
RV210
RV220
RV230
RV235
RV310
RV320
040-05100-23
042-05100-06
040-05100-21
042-05100-06
042-04220-06
042-04220-06
POT 10K LOG PCB 15MM SLOT SFT
RES PRE 10K CAR 6MM FLAT
POT 10K LIN PCB 15MM SLOT SFT
RES PRE 10K CAR 6MM FLAT
RES PRE 2K2 CAR 6MM FLAT
RES PRE 2K2 CAR 6MM FLAT
T855 Mechanical and Miscellaneous Parts
(220-01396-03)
066-00010-20
1
SHLD610
062-00010-13
CAN 10MM SQ X 11MM CAN A4M1017
070-01001-00
15/28 D-RANGE 15 WAY COMPL T800
SK320
SK330
SK501
SK502
SK503
SK504
SK505
SK513
SK522
SK531
SK532
SK533
SK534
SK535
SK805
SK810
240-04020-64
240-04020-64
240-04021-77
240-04021-77
240-04021-77
240-04021-77
240-04021-77
240-04021-77
240-04021-77
240-04021-77
240-04021-77
240-04021-77
240-04021-77
240-04021-77
240-10000-07
240-04020-42
SKT JACK 0.98MM PCB MTG 64 WAY
SKT JACK 0.98MM PCB MTG 64 WAY
SKT JACK 1.3 PCB MT 64W
SKT JACK 1.3 PCB MT 64W
SKT JACK 1.3 PCB MT 64W
SKT JACK 1.3 PCB MT 64W
SKT JACK 1.3 PCB MT 64W
SKT JACK 1.3 PCB MT 64W
SKT JACK 1.3 PCB MT 64W
SKT JACK 1.3 PCB MT 64W
SKT JACK 1.3 PCB MT 64W
SKT JACK 1.3 PCB MT 64W
SKT JACK 1.3 PCB MT 64W
SKT JACK 1.3 PCB MT 64W
CONN SMD SKT 16W 2R M-MATCH
SKT 44 PIN SMD PLCC
070-02001-00
LED RED COMPL T800 RX/TX/EX
070-02002-00
LED GREEN COMPL T800 RX/TX/EX
200-00010-04
WIRE T/C 0.7
SW201
230-00010-30
SWITCH TOG SPDT R-ANG PCB MTG
T210
T610
053-00010-17
050-00016-50
XFMR T4030 LINE MATCH POTCORE
COIL TAIT NO 650 455KHZ
276-00010-58
276-00010-58
276-00010-57
276-00010-58
276-00010-58
276-00010-57
276-00010-58
276-00010-57
276-00010-58
276-00010-58
276-00010-57
276-00010-58
276-00010-58
276-00010-57
276-00010-58
276-00010-57
276-00010-56
276-00010-56
276-00010-54
276-00010-56
276-00010-56
276-00010-54
276-00010-56
276-00010-54
276-00010-14
276-00010-76
276-00010-13
276-00010-14
276-00010-76
276-00010-13
276-00010-14
276-00010-13
FLTR XTAL 45MHZ 15K 4POLE 1PR
FLTR XTAL 45MHZ 15K 4POLE 1PR
FLTR XTAL 45MHZ 7.5K 4POLE 1PR
FLTR XTAL 45MHZ 15K 4POLE 1PR
FLTR XTAL 45MHZ 15K 4POLE 1PR
FLTR XTAL 45MHZ 7.5K 4POLE 1PR
FLTR XTAL 45MHZ 15K 4POLE 1PR
FLTR XTAL 45MHZ 7.5K 4POLE 1PR
FLTR XTAL 45MHZ 15K 4POLE 1PR
FLTR XTAL 45MHZ 15K 4POLE 1PR
FLTR XTAL 45MHZ 7.5K 4POLE 1PR
FLTR XTAL 45MHZ 15K 4POLE 1PR
FLTR XTAL 45MHZ 15K 4POLE 1PR
FLTR XTAL 45MHZ 7.5K 4POLE 1PR
FLTR XTAL 45MHZ 15K 4POLE 1PR
FLTR XTAL 45MHZ 7.5K 4POLE 1PR
FLTR XTAL 45MHZ 14KHZ BW 2 P
FLTR XTAL 45MHZ 14KHZ BW 2 P
FLTR XTAL 45MHZ 7.5KHZ 2POLE
FLTR XTAL 45MHZ 14KHZ BW 2 P
FLTR XTAL 45MHZ 14KHZ BW 2 P
FLTR XTAL 45MHZ 7.5KHZ 2POLE
FLTR XTAL 45MHZ 14KHZ BW 2 P
FLTR XTAL 45MHZ 7.5KHZ 2POLE
FLTR CER 455KHZ E 15KHZ B/W
FLTR CER 455KHZ F 12KHZ B/W
FLTR CER 455KHZ G 9KHZ B/W
FLTR CER 455KHZ E 15KHZ B/W
FLTR CER 455KHZ F 12KHZ B/W
FLTR CER 455KHZ G 9KHZ B/W
FLTR CER 455KHZ E 15KHZ B/W
FLTR CER 455KHZ G 9KHZ B/W
274-00010-22
XTAL 44.545MHZ TE/22 HC45/U
&XF300A
&XF300A
&XF300A
&XF300A
&XF300A
&XF300A
&XF300A
&XF300A
&XF300B
&XF300B
&XF300B
&XF300B
&XF300B
&XF300B
&XF300B
&XF300B
&XF301
&XF301
&XF301
&XF301
&XF301
&XF301
&XF301
&XF301
&XF302
&XF302
&XF302
&XF302
&XF302
&XF302
&XF302
&XF302
X310
Var
B6.3.7
10
13
15
20
23
25
30
35
10
13
15
20
23
25
30
35
10
13
15
20
23
25
30
35
10
13
15
20
23
25
30
35
Legend Description
SLUG BRASS A4M764 HELIC RESNTR
220-01145-02
2
PCB T855/856/857 VCO
220-01396-02
3
PCB T855 SERIES II
230-00010-31
4
SWITCH COVER FOR 230-00010-30
240-02100-06
5
SKT COAX N TYPE PNL MTG OP-TER
240-04020-62
SKT 2 W RECEP SHORTING LINK
PL210/220/230/240/250/260/270
303-11169-03
6
CHASSIS PAINTED T800 SERIES
303-23118-00
7
COVER A3M2247 D RANGE T855/7
303-50074-00
8
CLIP A3M2246 SPRING CLAMP T857
308-01007-01
9
HANDLE BASE STATION SERIES II
308-01048-00
10
HOUSING A3M2378 DOUBLET H/RES
311-01015-00
11
KNOB 15MM & SKIRT 6MM SFT
312-01052-01
12
LID TOP PNTD A1M2364 T800
312-01053-01
13
LID BOTTOM PNTD A1M2364 T800
316-06622-00
14
PNL FRT RX T800 SL2
345-00040-10
16
SCRW M3X6MM P/POZ ST BZ
349-00020-36
17
LIM)SCREW TT M3X8m PANTORX BLK
349-00020-43
18
SCRW T/T M4X12MM P/POZ BZ
349-00020-45
19
SCRW T/T M4X20MM P/POZ BZ
350-00016-42
20
SPACER 5MM HI 8MM ST 2.5MM HO
352-00010-08
21
NUT M3 COLD FORM HEX ST BZ
352-00010-29
22
NUT M4 NYLOC HEX
352-00010-54
23
NUT BRASS HEX 1/4” UNF 3MM
353-00010-10
24
WSHR M3 FLAT 7MMX0.6MM ST BZ
353-00010-13
25
WSHR M3 S/PROOF INT BZ
356-00010-03
TAG SOLDER 3MM LONG M614/3.2
Main PCB to chassis earth strap (via D-range
shield).
362-00010-23
26
GASKET SIL TO-220 CLIP MTG.
362-00010-33
27
GROMMET LED MTG 3MM
365-00011-53
LABEL 104X37MM
365-00100-09
LABEL WHITE VINYL 15X11MM S/A
365-00100-20
LABEL WHITE S/A 28X11MM
365-01541-00
LABEL TX/RX/EX TYPE APR/SER NO
399-00010-51
BAG PLASTIC 75X100MM
410-01081-01
CRT T800 SL2
410-01082-01
CRTN 10 T800 KIWI 423X410X360
© Copyright Tait Electronics Limited August 2004. All rights reserved.
B6.3.8
T855 PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01396-03
T855 PCB Information
M8SL2-00-002-812
B6.3.9
Key
33
2
© Copyright Tait Electronics Limited August 2004. All rights reserved.
The upper number is the component
identification number which appears in the
“Legend” column of the Mechanical and
Miscellaneous Parts on the facing page.
The lower number indicates how many of
this component are used in this location or
function.
T855 Mechanical Assembly
220-01396-03
IPN 220-01396-03
B6.3.10
T855 PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01396-03
T855 PCB Information
M8SL2-00-002-812
B6.3.11
T855 Grid Reference Index (IPN 220-01396-03)
How To Use This Grid Reference Index
The first digit in the PCB layout reference is a “1” or “2”, indicating the top or bottom side layout respectively, and the last two characters give the location of the component on that diagram.
The first digit in the circuit diagram reference is the sheet number, and the last two characters give the location of the component on
that sheet.
Device
PCB
Circuit
Device
PCB
Circuit
Device
PCB
Circuit
Device
PCB
Circuit
C201
&C203
&C205
C207
C209
C210
C211
C213
C215
C217
C219
C221
C222
C223
C225
C227
C229
C231
C233
C235
C237
C238
C239
C240A
C240B
C240C
C249
C251
C253
C255
C257
C259
C260A
C260B
C260C
C261
C262
C264
C266
C268
C270
C272
C274
C276
C278
C280
C286
C302
C304
C306
C308
C310
C312
C314
C316
&C318
&C320
&C322
&C324
1:D7
2:C6
2:C6
1:D6
1:C7
2:C7
2:C7
2:C7
2:C7
2:C7
2:C6
2:C6
1:C6
2:C6
2:C6
2:C6
1:C6
1:B3
1:B7
2:C5
2:C6
2:C5
1:C5
2:B5
2:B5
1:C5
1:B5
2:A5
1:C8
2:B7
2:B6
2:B6
2:B6
2:B6
1:B6
1:C6
1:B5
2:B5
1:D2
1:D3
2:B8
2:B8
2:B8
2:C4
2:C4
2:C4
2:B8
2:F8
2:F8
2:F8
2:F8
2:F8
1:F7
2:F8
2:F9
2:E8
2:E8
2:E8
2:E7
2-B9
2-B8
2-B8
2-C8
2-E8
2-C7
2-D7
2-E7
2-E7
2-E7
2-H6
2-H6
2-J9
2-J8
2-J8
2-J8
2-K8
2-K8
2-J7
2-M6
2-M5
2-N7
2-P6
2-Q8
2-R8
2-R8
2-Q7
2-R7
2-G5
2-L2
2-M2
2-M3
2-P4
2-P4
2-P4
2-N2
2-P3
2-P2
2-R3
2-R3
2-E3
2-D1
2-E1
2-B0
2-C0
2-F1
2-F1
3-C9
3-C9
3-D8
3-E8
3-E8
3-F8
3-F8
3-F9
3-A5
3-B5
3-C5
3-E5
&C326
C328
C330
C331
C332
&C334
&C336
&C338
&C340
C342
C344
C346
C347
C348
C349
C350
C351
C352
C354
C355
C356
C357
C358
C359
C360
C361
C362
C364
C366
C367
C368
C370
C372
C374
C376
C378
C380
C382
C384
C386
C388
C390
C392
C394
C410
C420
C430
C440
C450
%C460
C470
C480
C505
C515
C530
C535
C610A
C610B
C611A
2:E7
2:E7
2:F7
2:F7
2:E7
2:F7
2:E7
2:E7
2:E7
2:E6
2:E6
2:E6
2:E4
2:E6
2:E6
2:E6
2:E4
2:E4
1:F5
1:F4
2:E5
2:E5
2:F5
1:F4
2:F4
2:F5
2:E6
2:E5
2:E5
2:E5
2:F5
2:E4
2:F3
2:F3
2:E3
2:F3
2:E3
1:F3
2:E4
2:E4
2:E5
1:E6
2:E4
2:F3
2:L8
2:L8
2:L8
1:M7
2:K8
2:K8
2:G7
2:G8
1:K6
1:H5
1:K5
1:K5
1:M5
1:M5
1:L5
3-E5
3-F5
3-F6
3-H5
3-G4
3-H5
3-H5
3-J5
3-J5
3-K5
3-K6
3-L5
3-M5
3-M5
3-L6
3-M6
3-M6
3-N5
3-N6
3-P6
3-N6
3-Q5
3-Q6
3-P6
3-R6
3-Q6
3-R4
3-A2
3-B2
3-Q5
3-C2
3-C1
3-E1
3-D3
3-E2
3-E2
3-F2
3-G3
3-H2
3-J2
3-M2
3-M2
3-N2
3-P2
4-E4
4-F5
4-G6
4-H6
4-G5
4-H4
4-P5
4-Q5
5-L8
5-F3
5-K1
5-L1
6-C8
6-D8
6-E8
C611B
C623
C625
C626
C628
C630
C631A
C631B
C637
C640
C651
C658
C660
C665
C670
C673
C677
C681
C684
C687
C690
C693
C700
C702
C703
C705
C707
C708
C709
C710A
C710B
C710C
C711
C712
C713
C735
C736
C740A
C740B
C741A
C741B
C742A
C742B
C743
C745
C750
C757
C759
C761
C762
C764
C765
C767
C769
C770
C772
C774
C776
C782
1:M5
1:M6
1:M6
1:M6
1:M6
1:M5
1:M5
1:N5
1:M6
1:M5
1:M5
1:M5
1:L5
1:L5
1:L6
1:L5
1:M6
1:M5
1:M6
1:L6
1:L6
1:L6
1:J4
1:J4
1:J3
1:J3
1:J3
1:J3
1:H3
1:H3
1:H4
1:J3
1:J2
1:H2
1:H2
1:J2
1:J2
1:H2
1:H2
1:H2
1:G2
1:H2
1:H3
1:H2
1:G3
1:H4
1:G4
1:G4
1:H3
1:G3
1:H3
1:G3
1:H3
1:H4
1:H3
1:G4
1:H4
1:H4
1:G2
6-F8
6-N8
6-Q8
6-R8
6-R8
6-K4
6-M6
6-M6
6-P5
6-R5
6-M4
6-J1
6-K1
6-K1
6-L1
6-P2
6-P1
6-R3
6-R3
6-Q1
6-R1
6-R1
7-A8
7-B8
7-B7
7-B7
7-B5
7-B5
7-C5
7-D8
7-D8
7-F8
7-E7
7-E7
7-F7
7-A1
7-B1
7-B4
7-B3
7-C4
7-C3
7-D4
7-D3
7-B1
7-D1
7-H7
7-G5
7-G4
7-J4
7-J4
7-J2
7-J2
7-K3
7-M4
7-N4
7-M2
7-N2
7-N1
7-N0
C784
C786
C788
C791
C792
C810
C812
C813
C814
C815
C816
C818
C819
C820
C822
C824
C826
C828
C830
C832
C833
C834
C836
C837
C838
C840
C842
C844
C846
C848
C850
C873
C876
C879
C910
C920
C930
C940
C950
1:G2
1:G2
1:G3
1:G4
1:G4
1:L4
1:K2
1:J3
1:L2
1:N3
1:N3
1:N3
1:N3
1:N4
1:N3
1:N3
1:N3
1:N3
1:M4
1:M3
1:M4
1:M3
1:M3
1:M3
1:N4
1:M2
1:N2
1:N3
1:M2
1:N2
1:M2
1:M4
1:M4
1:M3
2:P6
2:P6
2:P7
2:P7
2:N8
7-Q1
7-R1
7-P0
7-Q0
7-R0
8-K8
8-E5
8-H5
8-Q4
8-B2
8-B2
8-C1
8-D1
8-E1
8-D2
8-D2
8-D0
8-D0
8-F1
8-G2
8-G1
8-H2
8-G0
8-G0
8-H0
8-K1
8-L0
8-L0
8-M0
8-M0
8-N0
8-N2
8-P2
8-Q0
9-E6
9-F6
9-G6
9-H6
9-J6
D111
D220
D220
D230
D230
D240
D240
D250
D260
D270
D270
D280
D285
D289
D290
D295
D310
D310
D350
1:P4
2:D8
2:D8
2:C6
2:C6
2:C8
2:C8
1:B7
2:A7
2:B7
2:B7
1:B7
1:D2
1:C2
1:C2
1:C2
2:E4
2:E4
2:E4
1-R1
2-E4
2-E4
2-J4
2-J5
2-D2
2-D3
2-H1
2-H1
2-H1
2-J1
2-K1
2-L1
2-K0
2-L0
2-L0
3-G2
3-G1
3-M4
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01396-03
B6.3.12
T855 PCB Information
M8SL2-00-002-812
Device
PCB
Circuit
Device
PCB
Circuit
Device
PCB
Circuit
Device
PCB
Circuit
D350
D610
D610
D640
D640
D730
D730A
D740
D740A
D820
D820A
D860
D860
D880
D880
2:E4
1:N5
1:N5
1:L5
1:L5
1:H3
1:H3
1:H3
1:H3
1:J3
1:J3
1:M2
1:M2
1:M2
1:M2
3-M4
6-L6
6-M6
6-M1
6-M2
7-H1
7-G0
7-J2
7-H0
8-B7
8-N0
8-N0
8-N0
8-R2
8-R2
L390
L410
L420
L430
L440
L740
L910
L920
L930
L940
1:F5
2:L9
1:M7
2:K8
1:G8
1:G3
1:P6
1:P6
1:P7
1:P8
3-R6
4-F5
4-F6
4-H5
4-Q5
7-Q0
9-E7
9-F7
9-G7
9-H7
#FL410
#FL420
1:M8
1:J8
4-C5
4-K5
IC210
IC210
IC210
IC240
IC260
IC270
IC270
IC270
IC280
IC280
IC280
IC310
IC310
IC310
IC320
IC410
IC610
IC630
IC640
IC640
IC640
IC650
=IC700
IC710
IC710
IC710
IC710
IC710
IC710
IC710
IC740
IC750
IC750
IC750
IC820
IC830
IC830
IC830
IC830
IC830
IC840
IC850
IC850
IC850
IC850
IC850
1:C7
1:C7
1:C7
1:B5
1:B6
1:B8
1:B8
1:B8
1:C4
1:C4
1:C4
1:E5
1:E5
1:E5
1:F3
1:G7
1:M5
1:N5
1:M5
1:M5
1:M5
1:L5
1:J3
1:H3
1:H3
1:H3
1:H3
1:H3
1:H3
1:H3
1:H2
1:H4
1:H4
1:H4
1:L4
1:N4
1:N4
1:N4
1:N4
1:N4
1:M2
1:M3
1:M3
1:M3
1:M3
1:M3
2-C7
2-F7
2-G7
2-P7
2-N2
2-F3
2-E2
2-B2
2-E1
2-B0
2-D0
3-Q5
3-N5
3-B2
3-N2
4-P5
6-D8
6-K5
6-N5
6-J0
6-Q5
6-E5
7-A8
7-D7
7-J0
7-C6
7-D6
7-D6
7-C6
7-E8
7-D1
7-M3
7-H6
7-H5
8-N5
8-J0
8-F1
8-F0
8-H2
8-E2
8-L0
8-N1
8-M2
8-Q2
8-M0
8-M2
P100
P160
P170
P201
P204
P207
P210
P213
P216
P219
P222
P225
P228
P231
P234
P236
P238
P240
P242
P244
P246
P248
P250
P252
P254
P256
P258
P260
P263
P266
P268
P270
P280
P282
P284
P287
P810
P815
P820
P825
P830
P835
P840
1:Q6
1:P2
1:P2
1:D4
1:D7
1:D6
1:D6
1:D3
1:B2
1:D7
1:C5
1:C8
1:D8
1:C7
1:B7
1:C8
1:D3
1:C8
1:C7
1:C7
1:C6
1:C6
1:B3
1:B2
1:B2
1:B2
1:D3
1:D3
1:B2
1:D2
1:B2
1:B2
1:B2
1:B2
1:B3
1:B2
1:K2
1:L4
1:K4
1:K4
1:K4
1:K4
1:K4
1-R8
1-Q4
1-R4
2-A9
2-A9
2-A8
2-C7
2-A7
2-A7
2-A7
2-A6
2-A4
2-A4
2-A4
2-A3
2-A1
2-A1
2-G2
2-G1
2-G8
2-H9
2-H9
2-K8
2-L9
2-L9
2-L8
2-P8
2-P7
2-R6
2-R5
2-R5
2-R5
2-R4
2-R4
2-R4
2-R0
8-A5
8-C4
8-M8
8-M8
8-M8
8-M7
8-M7
Q310
Q320
Q350
Q340
Q350
Q360
Q410
Q540
Q620
Q630
Q660
Q670
Q750
Q760
Q770
Q775
Q780
Q785
Q790
Q795
Q810
Q820
Q840
Q850
Q860
Q870
Q880
Q890
Q895
1:F9
2:F7
2:E6
2:E5
2:F4
2:E3
2:L8
1:K5
1:N6
1:M6
1:L5
1:L6
1:G4
1:G3
1:H3
1:H3
1:H3
1:H3
1:H4
1:G3
1:K2
1:K2
1:K2
1:L2
1:K4
1:L4
1:L2
1:L4
1:M3
3-D9
3-F5
3-L5
3-P5
3-D2
3-F2
4-G5
5-K2
6-P8
6-P5
6-N1
6-Q2
7-G3
7-H3
7-H1
7-K3
7-K3
7-K2
7-L3
7-P0
8-C5
8-C6
8-F5
8-G5
8-B4
8-C4
8-L5
8-K3
8-P2
PL100
PL200
PL210
PL220
PL230
PL240
PL250
PL260
PL270
1:P3
1:A3
1:C6
1:C6
1:B2
1:B6
1:C8
1:C8
1:C2
1-F0
2-R7
2-B8
2-H7
2-L8
2-K7
2-C2
2-H3
2-L1
L230
L310
L320
L330
L340
L350
L360
L370
L380
L385
1:D2
1:F8
1:F8
1:E8
1:E8
1:E7
1:F6
1:E7
1:E6
1:E4
2-K2
3-D9
3-E8
3-B5
3-C5
3-D5
3-G5
3-J5
3-L6
3-M6
Q210
Q220
Q230
Q240
Q245
Q250
Q255
Q260
Q270
Q280
Q290
2:C6
2:C5
2:C5
2:C8
2:B6
2:B8
2:B7
2:B7
2:C2
2:B7
2:B6
2-J8
2-M6
2-N6
2-H4
2-J4
2-G2
2-H2
2-K0
2-K0
2-L2
2-M2
R160
R201
&R202
R204
R205
R207
&R209
R210
R211
R213
R215
R218
&R219
R221
R222
%R223
R224
R225
R227
R229
R230
R232
R233
R234
R236
R238
R239
R241
R242
R244
R245
R247
R249
R251
R252
R254
R255
R256
R258
R260
R261
R262
R264
R265
R266
R267
1:P2
2:D6
2:D6
2:C6
2:C7
2:C7
2:C7
2:C7
2:C7
2:C7
2:C6
2:C7
2:C7
2:C7
2:C7
2:D6
2:C6
2:C6
2:B7
2:C5
2:C6
2:B5
2:C5
2:C5
2:B5
2:A5
2:B5
2:D8
2:C8
2:C8
2:C8
2:B7
2:B6
2:B7
2:B7
2:B7
2:B6
2:B6
2:B6
2:B5
2:B4
2:B3
2:B8
2:B8
2:B8
2:C8
1-Q4
2-B8
2-B7
2-C9
2-C8
2-D8
2-D8
2-D8
2-E8
2-G6
2-G9
2-G8
2-G7
2-H7
2-H7
2-J9
2-J8
2-J8
2-J7
2-L6
2-M5
2-M7
2-M7
2-N7
2-N7
2-R6
2-R7
2-F5
2-F4
2-G4
2-G5
2-J4
2-J3
2-L3
2-L3
2-L3
2-M3
2-M3
2-N3
2-P2
2-Q3
2-Q3
2-A3
2-A2
2-B2
2-C3
R269
R271
R272
R273
R275
R277
R278
R280
R281
R282
R284
R285
R287
R288
R289
R290
R292
R293
R294
R295
R296
R297
R298
R299
R302
R304
R306
R308
R310
R312
R314
R316
R318
R320
R322
R323
R324
R326
R328
R330
R332
R334
R336
R337
R338
R339
R340
R341
&R344
R346
R348
%R349
R350
R351
R352
R353
R354
R356
R358
R360
R362
R364
R365
R366
R367
R368
R370
R372
R374
R376
R378
R380
R382
R384
R386
R388
2:C8
2:D3
2:C4
2:C4
2:C4
2:C4
2:C4
2:C8
2:C8
2:B8
2:C8
2:B8
2:B8
2:B8
2:B7
2:B7
2:C8
2:B7
2:C3
2:B7
2:A7
1:B2
2:D7
2:C7
2:F8
2:F8
2:F8
2:F7
2:E9
2:F7
2:E7
2:F7
2:F7
2:F7
2:E7
2:E6
2:E6
2:E6
2:E6
2:E6
2:E6
1:E6
2:E6
2:E4
2:F4
2:E5
2:F5
2:F5
2:F5
2:F5
2:E6
2:E6
2:E5
2:E6
2:E5
2:F4
2:E5
2:F4
2:F3
2:F3
2:E4
2:F3
2:E5
2:F3
2:E5
2:E4
2:E3
2:E3
2:E4
2:E4
2:E3
2:E4
2:E4
2:E4
2:E5
2:E5
2-B1
2-A0
2-B1
2-C1
2-C1
2-C0
2-C1
2-D3
2-D2
2-E2
2-F3
2-F2
2-F2
2-F1
2-G3
2-G3
2-G2
2-H1
2-H0
2-J1
2-K1
2-M0
2-J0
2-J0
3-D8
3-E9
3-E8
3-F8
3-A5
3-F5
3-F4
3-G6
3-G5
3-G5
3-K5
3-K5
3-K5
3-K6
3-L6
3-M7
3-L5
3-L4
3-M4
3-M5
3-N6
3-N5
3-N5
3-Q5
3-R6
3-R7
3-R5
3-R4
3-A2
3-A2
3-B2
3-N6
3-B2
3-C2
3-D3
3-D2
3-D1
3-D1
3-Q4
3-D2
3-Q4
3-E1
3-E2
3-F3
3-F2
3-F1
3-G3
3-G2
3-H2
3-H2
3-L3
3-L3
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01396-03
T855 PCB Information
M8SL2-00-002-812
B6.3.13
Device
PCB
Circuit
Device
PCB
Circuit
Device
PCB
Circuit
Device
PCB
Circuit
R390
R392
R393
R394
R395
R396
R397
R398
R399
R405
R410
R415
R420
R425
R430
R435
R440
R445
R450
R455
R460
R465
R470
R475
R510
R515
R555
R615
R617
R619
R621
R625
R629
R633
R636
R637
R641
R645
R649
R653
R681
R685
R689
R693
R696
R701
R702
R703
R706
R707
R708
R709
R710
R711
R712
R742
R743
R744
R746
R747
R748
R749
R750
R752
R753
R754
R756
R757
R758
R759
R760
R762
R763
R765
R766
R767
1:E5
2:E5
2:E5
2:E5
2:F3
2:E3
2:E3
2:E3
1:E3
2:N8
2:L8
2:L8
2:L8
2:L8
2:L8
2:M7
2:K8
2:H8
2:H8
2:H8
2:G7
2:G7
2:G7
2:G7
1:K6
1:H6
1:K5
1:M5
1:M5
1:M6
1:M6
1:N6
1:M5
1:M5
1:N5
1:N5
1:N5
1:N5
1:M5
1:M5
1:L5
1:L5
1:L6
1:L6
1:L6
1:J4
1:J4
1:J4
1:J3
1:J3
1:J2
1:H2
1:J3
1:H3
1:J4
1:H2
1:H2
1:G2
1:H3
1:H3
1:J2
1:J2
1:H4
1:G4
1:G4
1:G3
1:G3
1:G4
1:H3
1:H3
1:H3
1:H3
1:H4
1:H3
1:G3
1:H3
3-L2
3-L2
3-P3
3-M2
3-N2
3-P2
3-Q2
3-Q1
3-P1
4-B5
4-E5
4-F4
4-G4
4-G5
4-G6
4-G6
4-J5
4-N4
4-N5
4-N4
4-P6
4-P6
4-P6
4-P4
5-J9
5-J5
5-K1
6-C9
6-F8
6-L8
6-L8
6-L7
6-P6
6-Q8
6-K6
6-K5
6-L4
6-L5
6-M5
6-Q4
6-L2
6-N2
6-Q3
6-Q1
6-Q1
7-A9
7-C9
7-C8
7-B6
7-C7
7-D7
7-E7
7-B6
7-B6
7-E9
7-B4
7-C5
7-D4
7-E4
7-E5
7-A1
7-B1
7-H7
7-F5
7-F3
7-F3
7-G5
7-H4
7-H4
7-J4
7-K4
7-K4
7-L4
7-H2
7-J3
7-K2
R769
R771
R772
R774
R775
R780
R782
R784
R785
R786
R787
R790
R791
R804
R805
R808
R809
R810
R811
R812
R813
R815
R816
R818
R819
R820
R821
R822
R823
R824
R825
R826
R827
R828
R829
R830
R831
R832
R833
R835
R836
R837
R840
R841
R842
R843
R844
R845
R846
R847
R848
R849
R850
R851
R852
R853
R854
R855
R856
R857
R858
R859
R860
R861
R863
R865
R866
R867
R868
R869
R870
R871
R872
R873
R875
R876
1:H3
1:H4
1:G4
1:H4
1:H4
1:G2
1:G3
1:G3
1:G3
1:G2
1:G2
1:G3
1:G3
1:J3
1:J3
1:K2
1:K2
1:L2
1:L2
1:K2
1:K2
1:K2
1:K2
1:K2
1:L2
1:K4
1:L4
1:L4
1:L4
1:K4
1:K4
1:K4
1:K4
1:K4
1:K4
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:L2
1:L2
1:L4
1:L4
1:L4
1:J2
1:J2
1:L4
1:L2
1:L2
1:N3
1:N3
1:N3
1:N4
1:N3
1:N3
1:N3
1:M3
1:N3
1:M3
1:M3
1:M3
1:N4
1:M3
1:M3
1:N3
1:N4
1:N4
1:M4
1:M3
7-K3
7-L3
7-L2
7-L2
7-N2
7-P1
7-P0
7-P1
7-Q1
7-R1
7-R1
7-P0
7-Q0
8-C7
8-C7
8-B6
8-C6
8-D6
8-D6
8-C6
8-C5
8-E4
8-F4
8-F5
8-F5
8-B4
8-C4
8-D3
8-D4
8-L8
8-L8
8-L8
8-L7
8-L7
8-P9
8-P9
8-P9
8-P8
8-P8
8-P8
8-P8
8-P7
8-P7
8-P7
8-P6
8-P6
8-M5
8-M5
8-L6
8-M6
8-Q5
8-Q5
8-Q4
8-Q4
8-N4
8-Q4
8-C1
8-C2
8-D2
8-D2
8-C0
8-D0
8-E0
8-F0
8-F2
8-G2
8-H2
8-G1
8-G0
8-G0
8-H0
8-H0
8-H0
8-K0
8-J1
8-K1
R877
R878
R879
R881
R882
R884
R885
R886
R887
R888
R889
R890
R891
R892
R894
R895
R897
R898
1:M2
1:M2
1:M2
1:M4
1:M4
1:M3
1:M3
1:M3
1:M3
1:M3
1:M3
1:M3
1:M2
1:M2
1:M2
1:M2
1:M2
1:M2
8-K1
8-K0
8-K0
8-K2
8-L3
8-N3
8-N2
8-P3
8-P3
8-P2
8-M1
8-N1
8-M1
8-N0
8-P0
8-Q1
8-Q1
8-Q2
TP310
TP311
TP313
TP314
TP408
TP409
TP410
TP411
TP412
TP601
TP602
TP603
TP604
TP607
TP710
1:E7
1:E4
1:E4
1:E5
2:N8
2:L7
2:J8
2:H8
1:G8
1:N5
1:L6
1:L5
1:L4
1:L4
1:H4
3-E5
3-M6
3-J2
3-R5
4-B5
4-D5
4-J5
4-M5
4-Q5
6-K9
6-R9
6-J2
6-N6
6-F9
7-J5
X310
1:F4
3-M6
RL210
RL210
RL210
1:C2
1:C2
1:C2
2-P4
2-K1
2-P5
&XF300A
&XF300B
&XF301
&XF302
1:E8
1:E8
1:E7
1:F5
3-C5
3-D5
3-J5
3-P5
RV205
RV210
RV220
RV230
RV235
RV310
RV320
1:B5
1:B7
1:D7
1:B8
1:C4
1:F4
1:E3
2-M7
2-K3
2-F5
2-A2
2-C0
3-E1
3-Q2
SHLD610 1:L6
6-J3
SK320
SK330
SK501
SK502
SK503
SK504
SK505
SK513
SK522
SK531
SK532
SK533
SK534
SK535
SK805
SK805
SK805
SK805
SK805
SK805
SK805
SK805
SK805
SK805
SK805
SK805
SK805
SK805
SK805
SK805
SK810
1:E5
1:E3
1:G6
1:G6
1:G6
1:G5
1:G5
1:H5
1:H6
1:K6
1:K5
1:K5
1:K5
1:K5
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:L3
3-L1
3-Q1
5-D6
5-D5
5-D4
5-D3
5-D2
5-G3
5-K5
5-N6
5-N5
5-N4
5-N3
5-N2
8-Q9
8-Q9
8-Q7
8-Q8
8-Q6
8-Q8
8-Q6
8-Q8
8-Q7
8-Q8
8-Q7
8-Q5
8-Q7
8-Q6
8-Q9
8-Q6
8-H5
SL210
SL220
2:B8
2:B8
2-E2
2-D2
SW201
1:B4
2-A6
T210
T610
1:C3
1:L6
2-Q2
6-N2
TP201
TP202
TP309
1:D3
1:D7
1:E9
2-P8
2-D9
3-A5
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01396-03
B6.3.14
T855 PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01396-03
T855 PCB Information
M8SL2-00-002-812
B6.3.15
9
TOPSLOT
TOPHOLE
TP309
PL250
IC270
P236
RV230
P225
D250
P234
P231
PL260
P240
L340
P228
C253
P242
TOPFIDB
L320
L310
&XF300B
8
Q310
&XF300A
L330
#FL420
L440
RV220
#FL410
L940
IC410
C312
L350
P244
TP412
TP310
SK504
SK533
SK513
Q660
C354
D640
R555
&XF302
C530
TP603
IC610
IC650
TP604
PL230
P252
P256
P254
R615
C631B
TP601
D111
T85523
T85515
T85525
C786
IC810
R840
R709
D880
R898
C850
R853
R852
C814
Q880
R844
R845
Q850
R819
R818
R815
Q820
Q840
R812 R816
P810
R809 C812
Q810
R808
D860
C838
C826
PL100
C844
IC850
R876
R877
R878
R897 R895 R879
R858
R854
C816
R867
R863
C822
C824
R861
R859
C815
R841
C828
SK810
R842
R835
R869
C836
R888
R833
C837
C820
R857
C819
R856
C818 R855
R870
R871
R860
Q895
R865
C834
R866
C832
R837
R832
IC830
C830
C833
R887
R886
R890
R884
R889
R831
R882
R875
R848
C810
R847
R846
R821
R828 R826
C873
C879
R836
R748
R849
R708
R752
C757
C759
C876
Q890
R885
C703
R710
C813
D820A
R804
R706
R805
C705
C708
C709
R767
SK805
C770
R769
C767
C742A
C741A
R851
R823
C707
C713
R742
R822
P815
R868 R873 R872
R894
R892
T85520
T85513
R747
R746
D820
Q860
IC820
R843
C710C
R711
R825
R810 R811
T85510
T855_
=IC700
C710A
IC710
D740A
D740
P825
Q870
R830
Q780
Q785
D730
C742B
R820
R824
R827
R829
R813
T855-
C764
IC740
C784
R780
C782
P835 P840
C712
C711
R786 R784
R785
R787
T855
D285
IC630
IC840
C842
C846
C848
P282
R160
TOPFIDA
L230
Q770
C745
P820 P830
C736
R749
C735
R850
P280
C266
Q795
C702
R750 R703
C776 R702
R775 R712
R707
C743
P263
2
D295
D290
D289
TP201
Q760
R743
P268
PL270
P287
P216
R297
C268
R757
R754
IC320
P260
C700
R701
Q775
C740A
P258
P250
C710B
C750
R774 R763 Q790
R791
C765
TP710
R771 C769
C761
R765 R759 R762
R760 R758
D730A
RV320
R766
R782
R399
R756
IC750
C741B
P238
C772
C762
C382
C774
C740B
L740
T210
R790 C788
SK330
P213
C231
R753
R772
C359
RV310
P284
3
Q750
C791
RV235
PL200
C640
D610
C355
R744
L385
TP313
C792
P201
X310
IC280
IC640
R636
R637
TP607
TP311
SW201
C630
P100
R617
R390
C610A
P222
C535
Q540
C611A C610B
R685
C673
R681
C611B
IC310
C240C
4
C651
SK535
C515
IC240
C249
SK320
C239
C665
SK534
L910
R645
SK532
SK505
5
C626
C628
C670 C684
T610
SHLD610
SK531
R881
C262
SK503
L390
TP314
SK522
R621
R619
R629
Q630
R641
C390
C505
C631A R649
SK502
R625
C677
C637
C222
C623
C625
R633 R653
SK501
R696
TP602
Q620
C658
C681
P207
C261
RV205
L380
Q670
C660
IC260
C693
R510
C260C
PL210
C229
R515
6
PL240
P210
C687
L360
R334
P248
R689
P246
L920
&XF301
C207
R693
C209
PL220
C233
L420
L370
C201
C690
P219
RV210
C440
TP202
P204
R891
C840
IC210
L930
D280
7
P270
RL210
P170
P160
P266
1
A
B
C
D
E
F
G
H
J
K
L
M
N
The darker shading shows the
outline of the chassis.
T855 PCB Layout – Top Side
220-01396-03
© Copyright Tait Electronics Limited August 2004. All rights reserved.
P
IPN 220-01396-03
B6.3.16
T855 PCB Information
M8SL2-00-002-812
These link wires are positioned according to frequency range and
should not be moved as their position is optimised in the factory.
L410
R310
&C318
R267
C316
R265
C272
SL210
R290
R289
R293
R292
C274
R282
R284
R264
R266
SL220
R285
C286
R288
R287
R269
C270
C255
R295
R247
C210
&R219
R213
C217
R251
R254
R252
R218
R296
R256
C223
C219
C221
R255
C257
R224
C225
R249
R215
Q290
6
C260B
C260A
C259
R258
R230
C237
R225
C227
R232
R233
Q230
R236
R239
C251
C240A
C240B
C280
C276
R278
R273
4
C278
R261
R271
C380
C376
R370
R376 R378
R368
R374
R272
R382
D310
5
R238
C264
R260
R234
C235
R384
C384
R360
R366
R364
C374
C372
R262
R372
3
C394
R358
R277
D350
C386
C347
C351
R356
R353 R338
R337
Q360
7
D260
R229
R275
R392
C392
C370
&C203
R339
C356
R340
R393
R380
Q260
R227
R388
C352
C378
R281
R280
C215
R204
%R223
C388
R394
R386
R362
Q245
8
Q255
D270
Q280
R222
BOTFIDA
R221
C238
Q340
Q350
C211
R205
&C205
R201
D230
Q220
R354
R352
C367
R367
R365
C344
C362
R350 C366
C364
C357
&R344
C361
R341
R324
C348
C349
C350
R351
C910
R348
C358
Q210
R326
%R349
R207
R332
&R202
C342
R328
R330
C360
R211
&R209
R322
C346
R323
Q330
R346
R210
&C338
R336
C920
C368
R299
C332
&C340
C330
R298
R314
&C334
R316
R435
C213
C328
&C336
R470
C930
R318
C331
R320
Q250
&C324
&C326
R308
C470 R475
R312
Q320
R465
R460
R242
R241
C314
D240
Q240
R244
D220
R302
D
TP409
R245
C306
TP411
&C320
%C460
D
C940
TP409
R450
TP411
&C322
C308
C410
R440
C
C310
R306
R430
C480
C430
R410
D
C
A B
B A
C
R455
TP410
C450
R445
TP408
Q410
L430
C950
R405
C
A B
B A
R420
TP410
R304
C302
R425
R415
D
C304
C420
TP408
R398
R294
R395
R396
R397
Q270
2
BOTFIDB
BOTSLOT
BOTHOLE
1
P
N
M
L
K
J
H
G
F
E
D
C
B
A
The darker shading shows the
footprint of the bottom cover.
T855 PCB Layout – Bottom Side
220-01396-03
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01396-03
T855 PCB Information
M8SL2-00-002-812
B6.3.17
PL200
P238
The darker shading shows the
outline of the chassis.
T855 Test Points and Options Connections – Top Side
220-01396-03
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01396-03
B6.3.18
T855 PCB Information
M8SL2-00-002-812
The darker shading shows the
footprint of the bottom cover.
T855 Test Points and Options Connections – Bottom Side
220-01396-03
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01396-03
T855 PCB Information
M8SL2-00-002-812
A
9
B
+13V8
C
D
E
+9V
F
G
H
+9V
J
K
L
M
N
P
Q
B6.3.19
R
9
+9V
RECT-NOISE
I-F-SIG
ANTENNA
F-END-SIG
P100
RECT-NOISE
I/OPAD
AUDIO
FRONT-END
DISCRIMINATOR
AUDIO-2
AUDIO-1
AUDIO-1
RX-DISABLE
7
SPEECH
VCO
SECTION
I-F
SPEECH
SHEET 3
+9V
+5V
6
REGULATOR
SHEET 6
SHEET 5
LED
DRANGE 1
+20V
+9V
+5V
NOT-RESET
RELAY-COM-1
CNTRL-VOLT
DIV-BUFFER
RELAY-NO-1
P160
I/OPAD
+9V
+5V
R160
10
SERIAL-COM
AUDIO-1
LOCK-DETECT
GATE-O/P-1
AUDIO-2
+5VDIG
RELAY-COM-1
I/OPAD
4
P170
PL100
7
SERIAL-COM
7
AUDIO-1
PL100
RSSI
PL100
RELAY-NO-1
PL100
6
AUDIO-1
GATE-O/P-1
SYNTH
SPEAKER-O/P
3
SHEET 7
SPEAKER-O/P
MCU-CLOCK
SYNTH
SDA
LINE-O/P-4
SYNTH
MICRO
SHEET 8
SDA
6
RX-DISABLE
5
RELAY-COM-1 PL100
MUTE
SCK
LED
GATE-O/P-1
PL100
11
GATE-O/P-1
11
LED
SPEAKER-O/P PL100
LINE-O/P-3
8
SPEAKER-O/P
8
LINE-O/P-2
LINE-O/P-4
PL100
LINE-O/P-3
PL100
LINE-O/P-2
PL100
LINE-O/P-1
PL100
3
12
RELAY-COM-1
12
MUTE
SCK
13
RELAY-NO-1
13
SPEECH
LINE-O/P-3
5
RSSI
RX-DISABLE
SPEECH
LINE-O/P-4
2
5
LED
RELAY-NO-1
4
+13V8
MUTE
PROCESSOR
SHEET 2
+20V
RX-DISABLE
MUTE
5
+5VDIG
+9V
RESET
AUDIO
VCO-O-P
RSSI
AUDIO-2
6
8
SHEET 9
SHEET 4
RSSI
7
HARMONIC-FILTER
WATCHDOG
8
AUDIO
2
4
LINE-O/P-4
4
LINE-O/P-2
3
LINE-O/P-3
3
LINE-O/P-1
2
LINE-O/P-1
DGND & GND ARE JOINED
1
+13V8
THROUGH R617 ON SHEET 6
D111
SR2607
0
PL100
3B
3A
2A
1A
0A
REV/ISS
UPDATE CAD=BAAN
C/N 710540
C/N 710167
UPDATE
ORIGINAL
BENC
BENC
DAVES
DAVES
DAVES
AMENDMENTS
2
LINE-O/P-2
DRAWN
02-02-99
08-06-98
SLH
CHKD
DE
D.O.
RORY
APVD
22-08-97
DATE
15 WAY R-ANGLE DRANGE PLUG
This sheet shows how the T855 circuitry is divided into separate sections which are
contained within separate cavities in the chassis. It is laid out to show the approximate
OUT-OF-CIRCUIT-DATA
location of each section of circuitry
on the PCB. The circuitry for each section is shown
on separate numbered sheets, andSHEET
all components
on the PCB are numbered to match
10
the sheet on which they appear. For example, all audio components appear on sheet 2
and are numbered between 200 and 299, all IF section components are on sheet 3 and
are numbered between 300 and 399, and so on.
10
PL100
+13V8
9
9
PL100
GND
14
14
PL100
GND
15
15
TAIT
ELECTRONICS
T855
RECEIVER
IPN:
ISSUE:
220-01396-03
PROJECT:
T855RX
DESIGNER:
BENC
03B
FILE
NAME:
1396_03B
ID:.
2.SC. 1
FILE
1
0
PL100
DATE:
02-02-99
Sheet 1 – T855 Receiver Overview
220-01396-03
© Copyright Tait Electronics Limited August 2004. All rights reserved.
1
LINE-O/P-1
1
PL100
+13V8
10
NO.SHEETS:
10
IPN 220-01396-03
B6.3.20
A
B
C
D
E
F
G
H
J
+9V
9
A
B
C
6B4
10N
&C205
3R8
4A8
5B7
6B3
7A5
8A1
AUDIO
3R5
4V1
C207
R201
I/OPAD
P207
4K7
1U0
GND
&R202
4K7
1R0
1R0
3A1
4A7
5A5
6B1
7A4
8A0
9C6
6B2
I/OPAD
P213
7
I/OPAD
&R209
R210
R211
22K
15K
39K
4V1
P210
I/OPAD
5
+9V
6
2P2
C213
47N
C211
4N7
P244
+
IC210
358
C215
3K9
-
&R219
C225
100N
100N
7
2
8K2
8
4
I/OPAD
P222
1R3
3R4
8A2
Q210
BC848
P254
1X4 WAY
PL230
3V
R225
470
1
TP201
+13V8-FILT
J
H
RV205 3CW
10K
2
1
PL220
1X3 WAY
100K
R234
47K
47K
P258
I/OPAD
C238
4
3
-
C249
2
OUT
SPEAKER-O/P
R229
R238
4R7
C235
1N0
6
MUTE-DISABLE
1
RELAY-NO-1
1N0
2
3
Q230
BC848
+9V
R230
4K7
5
RX-DISABLE
3
CW RV220
10K
1
2
C237
1N0
4
2
3
R241
1K0
1R1
1R1
6B2
6B3
BAW56
D220
RX-DISABLE
8Q6
1
RX-DISABLE-B
I/OPAD
4
3
2
RX-DISABLE-A
I/OPAD
P225
P228
R245
1K0
C253
100U
3
RX-GATE-OUT
U
V
W
6K8
+9V
3
R264
27K
RV230 3CW
10K LIN
1
2
2
BAV99
R266
3
22K
2
RECT-NOISE
R280
330K
100K
C270
100N
3
1
PL250
1X3 WAY
-
2
4K7
R282
3
D240
R
5
100K
SL210
C272
10N
C274
100N
6
T
R269
3
IC280
R271
100K
1
358
2
R251
R255
C259
1
39K
47K
100N
2
10K
358
I/OPAD
R288
4K7
R273
5
15K
R277
5K6
-
C276
47N
8
Q255
BC857
6
C278
100N
10K
RV235
2
IC280
358
7
4
C280
47N
2
3
BAV70
D270
1
3
8 12V RELAY
RL210
BAV70
D270
I/OPAD
1R1
R258
47K
1
+
OP
3-
IC260
TDA7231
OUT
R262
1K0
6V4
V+
2
C262
100U
V-
5
C257
1N0
R261
150
C264
100N
3
T210
T4030
8
1
2
3
7
6
4
5
LINE-O/P-2
C266
4U7 NP
1R1
C268
4U7 NP
1R2
LINE-O/P-3
R260
4R7
C261
100U
2
1R2
D285
1N4001
1
R293
560
D250
RED
DC CONDITIONS (VOLTS)
P284
100UH
R296
1K2
R295
6K8
GREEN
SUPPLY
D260
3V3
D280
GREEN
X
Y
Z
D289
1N4001
-
CARRIER MUTE
C260C
220U
L230
6K8
V-
1
3CW
C260B
100N
+13V8
+13V8-FILT
V+
IC280
358
+
C286
4N7
4
LINE-O/P-4
P240 R292
-
4
Q290
BC848
C255
1N0
I/OPAD
R278
220K
+
47K
1R3
3R1
R287
I/OPAD
LINE-O/P-1
3CW
+9V
Q250
BC848
P242
100
RSSI
0
7
R275
R272
RV210
10K LOG
Q280
BC848
+
I/OPAD
LEVEL
R285
47K
V-
P280
R256
4K7
R254
8K2
+9V
P236
I/OPAD P238
V+
IC270
SL220
S
2K2
LINE
BAV99
R281
1
358
3K2
I/OPAD
MUTE
100
D240
+
R252
4K7
R249
10K
IC270
358
4
IC270
R265
100
R267
COMMON-2
NC2
P282
LINE-MONITOR
PL260
1X3 WAY
R284
8
RX
DISABLE
LINK
5
I/OPAD
7
+13V8-FILT
C260A
1N0
R289
P270
12V RELAY
6
+9V
R290
1K0
GATE
SENSITIVITY
5
RL210
Q245
BC857
6K8
I/OPAD
I/OPAD
NO2
BAV70
D230
Q240
BC857
R244
1R3
P266
NC-1
P268
1
I/OPAD
P231
I/OPAD
P234
I/OPAD
RELAY-COM-1
2
D230
BAV70
3
R247
2K2
R242
100
BAW56
D220
12V RELAY
3
+13V8
1R3
P263
RL210
+13V8
7
R239
1K0
5
Q220
BC848
4K7
1R2
C251
100N
470U
V-
C239
100U
4N7
C221
SW201
SPDT
1
6V4
IC240
TDA7231
V+
OP
R236
47K
C219
PL200
2 WAY PLUG
1
+
100N
R233
8K2
FLAT
DE-EMPHASIS
R213
2K7
R232
D
E
F
R222
V-
R227
1K0
1X5 WAY PLUG
PL240
C240C
220U
C240B
100N
P260
MONITOR VOLUME
G
10U
8
C240A
1N0
I/OPAD
+13V8-FILT
L
K
C233
8R0
+13V8-FILT_TESTPOINT
C231
10U
C229
10U
9
+13V8-FILT
P
Q
R221
C210
1N0
P256
N
4V1
C217
47P
SPEECH
I/OPAD
SPEECH
M
3K9
1R3
3R4
8A2
AUDIO-2
I/OPAD
P250
I/OPAD
-
V+
IC210
358
I/OPAD
P219
DISCRIMINATOR
R224
+
47K
I/OPAD
P216
6
C223
4V1
IC210
358
R
AUDIO-2
C227
100P
3
Q
I/OPAD
FLAT
R218
P
P252
C209
47U
R205
220K
N
AUDIO-1
+9V
R207
8K2
M
10
P248
DE-EMPHASIS
4N7
L
M8SL2-00-002-812
%R223
10U
R215
15K
PL210
1X3 WAY
&C203
+9V
I/OPAD
R204
10K
C201
10U
I/OPAD
P204
8
P246
TP202
+9V-TESTPOINT
I/OPAD
P201
K
C222
I/OPAD
T855 PCB Information
Q270
BC817
R294
1K0
1
VARIANT COMPONENTS
RELAY
LINK
&C203
&C205
&R202
&R209
&R219
Refer to the parts list for the values for each product type.
1X3 WAY
PL270
D290
R297
1N4001
10
GATE-O/P-1
1R2
0
D295
I/OPAD
P287
1N4001
MUTE
LED
R298
8R4
47K
Q260
BC848
TAIT
R299
47K
IPN:
ISSUE:
220-01396-03
AMENDMENTS
DRAWN
CHKD
D.O.
APVD
ELECTRONICS
T855
AUDIO PROCESSOR
PROJECT:
REV/ISS
8A4
DATE
T855RX
Sheet 2 – T855 Audio Processor
220-01396-03
DESIGNER:
BENC
03B
FILE
NAME:
1396_03B
ID:.
2.SC. 2
FILE
DATE:
02-02-99
NO.SHEETS:
10
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01396-03
T855 PCB Information
M8SL2-00-002-812
A
C
D
E
F
G
H
J
K
L
M
N
P
Q
R
+9V
8V5
BF247
Q310
C302
100P
4R5
C304
2P7
1
2
C316
15P
L310
#622
&C318
&C320
&C322
R304
2K7
+9V
3
32
1
8
0V75
R302
39E
9
VARIANT COMPONENTS
D
I-F-SIG
GS
9
B
B6.3.21
&C324
&C326
&C334
&C336
&C338
&C340
&R344
&XF300A
&XF300B
&XF301
&XF302
+9V
2A8
4A8
5B7
6B3
7A5
8A1
6B3
Refer to the parts list for the values for each product type.
R308
10
L320
#622
C306
4N7
8
R306
10
C310
10N
C308
1N0
C314
4N7
C312
10U
7
+5V-REG
+9V
+5VIF
R330
47
7
R346
10
R353
+9V
0
R326
10K
R316
47
6
3
L380
#622
2
1
C349
2P7
1
C351 2
1P0
3
-100
C330
1N0
-115
45M
R310
0
&C318
-115
5
TP309
&XF300A
I/O
XF
1
8P2
1
2
3P9
&C320
3
2
&XF300B
XF
I/O
&C326
3
&C322
15P
3 L340
#622
C328
2
L350
#622
14M
&XF301
&C334
1
IN
BPF
OUT
IC310
3361CP
IN
OUT
OSC
IN
OUT
R337
220
BF991
C346
4N7
1
2
2V8
L370
#622
R322
8K2
R323
10K
C347
4N7
2
R340
3
-T
R334
150
C357
10N
4
&XF302
1
5
IN BPF OUT
CFW455E
0
27P
R336
470
1
2
BAT17DS
D350
3
3
C360
4N7
&R344
56K
6
2
4 1
L390
#631
R341
0
5V0
C367
10N
Q340
BC848
BP1 BP2 QCIN VCC
IC310
C
AF
IF
3361CP GND
R348
LIM
AUDIO
220
5
2A8
+5VIF
R339
10K
R332
330
3
C358
47N
C361
100N
6 3
C352
2V0
&C338
12P
C359
10U
TANT
1V8
2V6
4N7
47P
C355
10U
TANT
C356
12P
L385
#622
Q330
&C336
12P
C332
4N7
TP311
C348
4N7
R324
22K
C342
&C340
3
GND
2
9V0
R314
4K7
9V0
6V8
Q320
BFS17
R312
3K3
&C324
3P9
1
C344
4N7
C331
2P2
47P
32
GND
R320
3K9
L360
#622
4N7
8P2
1
2
GND
L330
#622
1
1
2
3
TP310
45M
2V0
3
R318
10K
C354
10U
TANT
R338
1K0
C350
X310
4N7
44.545M
R328
1K0
D350
BAT17DS
C362
10N
R365
150K
4V2
4
TP314
4
R367
150K
4V8
DISCRIMINATOR
%R349
100
1R3
2R9
2R9
8A2
+9V
R358
R386
12K
47
R372
2K7
C374
4N7
R378
100K
C382
10U
RECT-NOISE_TESTPOINT
R388
10K
+5VIF
2
R351
10K
C364
39P
R352
390K
R354
1M0
SC CTL
IC310 A
IN 3361CP SW
SQUELCH
OUT SWCTL
R366
3K3
1V7
R374
R382
R384
10N
1K0
47K
47K
Q360
BC848
120P
Q350
BC848
180
C380
1
C378
R360
15K
R356
47N
C368
R370
100K
C376
120P
R380
10K
BAW56
D310
C384
47N
RECT-NOISE
-T
R390
10K
78L05
+5V-REG
2A2
R394
C386
47N
3
IC320
VIN
VREG VOUT
R396
2
47
3
R392
0
R368
22K
3
R395
0
TP313
R350
18K
39P
C366
R393
10K
+9V
C388
4N7
C390
10U
390
C392
4N7
GND
1
RSSI SET UP
RV320
2K2
3
2
CW
3
2
1
C394
47N
R397
820
1V0
GND
CW3 RV310
2K2
1
2
MUTE SET UP
1R0
1R0
2A7
4A7
5A5
6B1
7A4
8A0
9C6
6B1
C370
4N7
R362
3K3
R364
1K0
SK320
1X3 WAY
R376
0
C372
47N
3
2
0
D310
BAW56
SK330
1X4 WAY
RSSI
R398
10K
R399
0
SENSITIVITY
DC CONDITIONS (VOLTS)
TAIT
ELECTRONICS
T855
I-F
IPN:
ISSUE:
220-01396-03
PROJECT:
REV/ISS
AMENDMENTS
DRAWN
© Copyright Tait Electronics Limited August 2004. All rights reserved.
CHKD
D.O.
APVD
DATE
1
1R3
2A0
2K2
-T
1
T855RX
DESIGNER:
BENC
Sheet 3 – T855 IF Section
220-01396-03
03B
FILE
NAME:
1396_03B
ID:.
2.SC. 3
FILE
DATE:
02-02-99
NO.SHEETS:
10
IPN 220-01396-03
B6.3.22
A
B
C
D
E
F
G
H
J
T855 PCB Information
K
L
M8SL2-00-002-812
M
N
P
Q
R
9
9
+9V
+9V
8
8
2A8
3R8
5B7
6B3
7A5
8A1
6B4
GND
1R0
1R0
2A7
3A1
5A5
6B1
7A4
8A0
9C6
6B2
7
7
VCO-O-P
5F2
R460
+9V
L420
R435
330N
10
180
R465
33
C430
100P
R430
150
R425
-118
TP410
1K0
5
TP409
L410
PRINTED
13 2
R405
0
MICROSTRIP
9K7
C450
4
R410
C420
0
47P
MICROSTRIP
F-END-SIG
L430
PRINTED
-117
TP412
TP411
13 2
R440
8
LO
3
IC410
1
RF MIXER IF 4
GND
2 5 6 7
R450
0
47P
10
Q410
MMBR571
R415
330
R420
10
L440
C480
330N
56P
5
I-F-SIG
3A9
C470
10P
0V28
1V0
C410
1P8
180
-111
%C460
2P7
MICROSTRIP
-118
TP408
#FL420
HELICAL FILTER
-110
4V3
#FL410
HELICAL FILTER
6
R470
C440
10U
MICROSTRIP
6
R445
470
R455
470
R475
47
4
3
3
2
2
1
1
0
0
TAIT
ELECTRONICS
T855
FRONT-END
IPN:
ISSUE:
220-01396-03
PROJECT:
REV/ISS
AMENDMENTS
DRAWN
CHKD
D.O.
APVD
DATE
T855RX
Sheet 4 – T855 Front End
220-01396-03
DESIGNER:
BENC
03B
FILE
NAME:
1396_03B
ID:.
2.SC. 4
FILE
DATE:
02-02-99
NO.SHEETS:
10
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01396-03
T855 PCB Information
M8SL2-00-002-812
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
B6.3.23
R
9
9
CNTRL-VOLT
R510
2K2
7R3
C505
100N
8
8
+9V
+9V
7
7
6B4
2A8
3R8
4A8
6B3
7A5
8A1
1
SK501
1 WAY SOCKET
GND
6
GND
6B2
5
1
DIV-BUFFER
SK502
1 WAY SOCKET
GND
2
1R0
1R0
2A7
3A1
4A7
6B1
7A4
8A0
9C6
SK531
1 WAY SOCKET
CV-OUT
4
SK503
1 WAY SOCKET
GND
3
SK504
1 WAY SOCKET
GND
4
SK532
1 WAY SOCKET
GND
5
R515
56E
+9V
3
2
SK522
1 WAY SOCKET
DIV-BUFFER
7R0
6
3
SK533
1 WAY SOCKET
GND
C515
100N
4
4
SK513
1 WAY SOCKET
VCO-BUFFER
SK534
1 WAY SOCKET
GND
3
+9V
Q540
BC848
VCO-O-P
SK505
4R7
1 WAY SOCKET
RF-OUT
5
2
5
SK535
1 WAY SOCKET
+9V-VCO
2
R555
470
1
1
C530
22U
TANT
C535
100N
0
0
The circuit diagram for the
VCO PCB is in Part E.
TAIT
ELECTRONICS
VCO
IPN:
ISSUE:
220-01396-03
PROJECT:
REV/ISS
AMENDMENTS
DRAWN
© Copyright Tait Electronics Limited August 2004. All rights reserved.
CHKD
D.O.
APVD
DATE
T855RX
T855
SECTION
DESIGNER:
BENC
03B
FILE
NAME:
1396_03B
Sheet 5 – T855 VCO Section
220-01396-03
ID:.
2.SC. 5
FILE
DATE:
02-02-99
NO.SHEETS:
10
IPN 220-01396-03
B6.3.24
A
B
C
D
E
F
+9V
G
H
J
T855 PCB Information
K
L
M8SL2-00-002-812
M
N
P
Q
R
+13V8
+5VDIG
+9V
9
9
TP607
78L05
+5VDIG
TP601
TESTPOINT
+13V8-TESTPOINT
R615
100
3 VIN
IC610
Q620
BD234
R619
VREG VOUT 2
TP602
+9V-TESTPOINT
1E0
GND
C610A
10N
8
C610B
100U
C611A
100U
1
R633
6K8
C611B
10N
C625
470U
C626
4N7
C628
1N0
8
R621
R617
0
1E0
DGND CONNECTS GND
THROUGH R617
C623
120P
+5VDIG-SUPPLY
R625
7
7
1K0
+5V REGULATOR
+5VDIG
WATCHDOG
6
D610
3 1
BAV99
R636
33
8R5
7A2
8R4
8R4
+5V
C631A
100N
R637
33
IC630
C631B
10U
TANT
2
4K7
2
3
+5V
V+
8
C637
120P
IC640
358D
R645
470
ADJ
+5VDIG
+13V8
R629
270
R649
VREG VOUT 1
8A8
+5VDIG
+5V TESTPOINT
LM317L
3 VIN
RESET
IC640
358D
C640
1N0
5
Q630
BC557
1
V-
4
+
C630
100N
8A9
+9V
R641
1K5
CAN TO SHIELD T610
+5V
4
6
TP604
8
+V
7
1
ST
PBRST
IC650
6
2
RST
TD
5 LOW PWR MON 3
RST
TOL
GND
4
NOT-RESET
5
D610
2 3
BAV99
C651
100N
+9V REGULATOR
7A5
8A1
R653
10K
4
+13V8
+9V
10MM SQ * 11MM
SHLD610
2A8
3R8
4A8
5B7
7A5
8A1
3
+9V
+20V
R689
240KHz
3
10
C681 C684
100N 10U
TANT
24vpp
+13V8
R685
15K
1R1
1R1
2A5
+20V SUPPLY
2
+20V
TESTPOINT
+20V
+20V
R681
TP603
7A4
100
C658
100N
GND
1R0
1R0
2A7
3A1
4A7
5A5
7A4
8A0
9C6
1
3
C660
100N
C665
10U
1
2
4 T610
#650
3
6
C673
4N7
2
Q670
BC857
2
BAV70
D640
C670
3U3
TANT
3
1
BAV70
D640
Q660
BC817
C687
1N0
C677
1U0
C693
10U
TANT
C690
100N
R693
100K
1
R696
56K
IC640
SPARE GATE
DGND
0
5
8A0
IC640
358D
6
0
+
7
-
TAIT
ELECTRONICS
T855
REGULATORS
IPN:
ISSUE:
220-01396-03
PROJECT:
REV/ISS
AMENDMENTS
DRAWN
CHKD
D.O.
APVD
DATE
T855RX
Sheet 6 – T855 Regulators
220-01396-03
DESIGNER:
BENC
03B
FILE
NAME:
1396_03B
ID:.
2.SC. 6
FILE
DATE:
02-02-99
NO.SHEETS:
10
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01396-03
T855 PCB Information
M8SL2-00-002-812
A
B
C
D
+5V
E
F
G
H
J
K
L
M
N
P
Q
B6.3.25
R
+5V
9
9
R712
10
R701
22
R702
1M0
14
C710A
4U7
TANT
8
74HC04
7
VCC
FM
=IC700
12.8M
GND
OUT
C700
100N
R703
1M0
C702
1N0
V+
IC710
C710B
100N
C710C
10N
V-
8
+20V
C703
1N0
7
C705
R707
8P2
47K
74HC04
IC710
4
3
7
R709
R708
100
C711
22P
100
74HC04
IC710
12
13
R706
R750
22
74HC04
IC710
10
11
C712
22P
8
C713
10N
V+
C750
10U
TANT
IC750
33078D
15K
4
V-
6
6
MCU-CLOCK
IC710
8A3
+5V
R710
R711
100
100
6
IC710
5
8
74HC04
C707
47P
C708
47P
9
3V3
74HC04
C709
10P
LOCK-DETECT
+5V
6B4
R747
22
+9V
R752
22
R743
C757
10N
5
LOCK-DETECT
1
IC750
33078D
3
R756
470K
LOCKEDLOW
-
+5V
+9V
LOCK-DETECT
8A7
+
+9V
150
2A8
3R8
4A8
5B7
6B3
8A1
6B4
2V8
+20V
R742
150
C740A
1N0
4
TP710
2
6B4
8A1
5
TESTPOINT
0V2
+5V
+20V
C741A
4U7
TANT
C742A
100N
R744
22
R746
22
R757
470K
C759
10N
6B2
R758
1K2
R759
330
R763
100
100
C769
1N0
R760
180
22U
C762
TANT
C761
10N
R762
C770
22U
TANT
4
GND
Q775
BC857
1R0
1R0
2A7
3A1
4A7
5A5
6B1
8A0
9C6
6B2
C740B
10N
C742B
10N
C741B
10N
5V
R753
1M0
SDA
6
19
18
17
16
15
13
11
8R4
SCK
2
6B6
8R4
6B6
8R4
8R4
SYNTH
8R5
+5V
12
VCC
Q780
BC848
20
PDOUT
REF IN
1
DATA
REF OUT
2
CLK
LD
3
ENABLE IC740
OR
4
145191
OUT A
OV
8
OUT B
RX
9
TEST2
TEST1
10
FIN
FIN
R765
680
R749
47K
6
R771
8K2
R774
8K2
D740
R772
22K
AB3_1
BAT65
IC750
33078D
5
+5V TO + 15V LOCKED
7
CNTRL-VOLT
5B9
+
R775
C774
18K
100N
2
C772
22U
TANT
+9V
Q785
BC857
C745
120P
R787
10
C776
D730
R786
AB21_1
6N8
BAT65
C736
47P
3
S
R767
680
4U7
C765
TANT
AA1_OR
AA1_OV
C735
47P
C764
10N
C767
1N0
Q790
BFR31
G
6V6
47K
1
180
5
VPD
GND
7
R748
R769
R766
1K0
Q760
BC848
R754
1K0
14
VDD
D
+5V
Q750
BC807
3
10
Q770
BC857
C743
47P
8V5
R780
68
R785
3K3
R784
120
C784
120P
1
C786
100N
2V
C782
120P
SPARE GATES
VARIANT
DEVICES
0
AB21_1
IC710
18
Q795
MMBR571
C788
120P
R790
390
L740
C792
1.5T/2.5
120P
R791
1K0
D740A
SOD-323
1
2
ELECTRONICS
T855
SYNTHESISER
AA1_OR
IPN:
ISSUE:
220-01396-03
PROJECT:
REV/ISS
AMENDMENTS
DRAWN
© Copyright Tait Electronics Limited August 2004. All rights reserved.
CHKD
D.O.
APVD
DATE
0
C791
8P2
TAIT
AA1_OV
DIV-BUFFER
5J5
74HC04
IC710
AB3_1
D730A
SOD-323
1V4
R782
T855RX
DESIGNER:
BENC
03B
FILE
NAME:
1396_03B
Sheet 7 – T855 Synthesiser
220-01396-03
ID:.
2.SC. 7
FILE
DATE:
02-02-99
NO.SHEETS:
10
IPN 220-01396-03
A
B
9
C
D
E
F
G
H
J
T855 PCB Information
K
L
M8SL2-00-002-812
M
N
P
CHANNEL SELECT TO MICRO BUS
+5VDIG
Q
CH-SLCT-0
R829 2K2
CH-SLCT-1
R830 2K2
R
CH-SLCT-6
CH-SLCT-7
CH-SLCT-5
CH-SLCT-4
CH-SLCT-3
CH-SLCT-2
CH-SLCT-1
CH-SLCT-0
0V
6B4
CH-SLCT-2
6B5
8
C810
10N
R824 2K2
P820
R825 2K2
P825
7
LOCK-DETECT
LOCK-DETECT
D820
R805
BAT65
470
9
8
7
6
5
4
3
2
SYNTH_LOCK_DETECT
AB24_2
7R5
+5VDIG
R810
4K7
R809
4K7
6
19
18
17
16
15
14
13
11
5V
Q820
BC857
SERIAL-COM
R808
1R4
R811
4K7
R812
4K7
10
Q810
BC817
R818
5
P810
22
Q850
BC848
4K7
I/OPAD
P0.7
P0.6
P0.5
P0.4
P0.3
P0.2
P0.1
P0.0
SK810
80C51
P2.7
P2.6
P2.5
P2.4
P2.3
P2.2
P2.1
P2.0
VSS
R819
4K7
36
37
38
39
40
41
42
43
XTL1
21
P830
P815
R827 2K2
P835
R828 2K2
P840
R836 2K2
CH-SLCT-7
R837 2K2
+5VDIG
11
11 6
13
13 7
6
6 11
16
16 NC
14
14 15
12
12 14
10
10 13
4
4 10
8
8 12
2X8 WAY TOP ENTRY SMD SKT
SK805
2X8 WAY TOP ENTRY SMD SKT
2X8 WAY TOP ENTRY SMD SKT
SK805
R842 2K2
2X8 WAY TOP ENTRY SMD SKT
SK805
+5VDIG
R843 2K2
2X8 WAY TOP ENTRY SMD SKT
SK805
R847
4K7
2X8 WAY TOP ENTRY SMD SKT
SK805
RX-DISABLE
2X8 WAY TOP ENTRY SMD SKT
SK805
2A4
2 9
2
SK805
+5VDIG
R845
Q880
BC848
XTL2
20
47K
R848
470
R849
470
6B6
R850
470
7A2
R851
470
+5VDIG
WATCHDOG
SYNTH
SDA
7A2
R822
47K
2R0
R852
4K7
47K
4
LED
470
SERIAL_COM-1
SCK
NOT-RESET
6B6
7A2
R853
LED_FLASH
R823
Q870
BC848
6
MICROMATCH D-RANGE2
5
PIN
PIN
8
+V
6
SCL
A0
5
2 IC820
SDA
A1
7
3 24C16
WP
A2
GND
4
1
R844 150K
47K
CTCSS_ENABLE
R816
150K
7
15 8
15
6B6
7A2
47K
8
2X8 WAY TOP ENTRY SMD SKT
DCS_INPUT
R815
SK805
SK805
MUTE_OUT
WATCHDOG
SYNS
SDA
SCK
CTCSS_LSB
CTCSS_RX
CTCSS_MSB
9 5
9
2X8 WAY TOP ENTRY SMD SKT
R841 2K2
R846
4K7
7 4
7
2X8 WAY TOP ENTRY SMD SKT
I/OPAD
C813
1N0
R821
MUTE
CH-SLCT-6
5 3
5
2X8 WAY TOP ENTRY SMD SKT
I/OPAD
R820
47K
Q860
BC857
R835 2K2
SK805
I/OPAD
C812
100P
CH-SLCT-5
9
2X8 WAY TOP ENTRY SMD SKT
R840 2K2
+5VDIG
31
30
29
28
27
26
25
24
R833 2K2
I/OPAD
35
EA
33
ALE
32
PSEN
P3.7/RD
P3.6/WR
P3.5/T1
P3.4/T0
P3.3/INT1
P3.2/INT0
P3.1/TXD
P3.0/RXD
+9V
4
44
VCC
5V
Q840
BC857
+5VDIG
R813
4K7
P1.7
P1.6
P1.5
P1.4
P1.3
P1.2
P1.1
P1.0
CH-SLCT-4
3 2
2X8 WAY TOP ENTRY SMD SKT
SK805
I/OPAD
R826 2K2
10
RST
R832 2K2
SK805
I/OPAD
+5V
R804
47K
CH-SLCT-3
3
2X8 WAY TOP ENTRY SMD SKT
SK805
RESET
RESET
R831 2K2
SK805
+5VDIG
1 1
2X8 WAY TOP ENTRY SMD SKT
SK805
+5VDIG
1
2X8 WAY TOP ENTRY SMD SKT
SK805
MICROMATCH TO D-RANGE2 CONNECTIONS
B6.3.26
2A0
C814
1N0
MUTE_OUT
12.8MHz
3
+
MCU-CLOCK
MCU-CLOCK
7A6
AUDIO-1
1R3
2R9
2R9
3R4
2
C816
C822
10N
22N
C824
4V2
9
R856
R855
150K
47K
+5V
R857
10
150K
LM324D
IC830
8
+5V
R854
330K
6B4
7A5
+9V
33P
+
1
R858
27K 1%
R860
820K 1%
V-
R859
6B2
R876
C830
47N
C828
10N
10N
R878
100K
11
3
1R0
1R0
2A7
3A1
4A7
5A5
6B1
7A4
9C6
+
5K1 1%
2
1
C836
C837
C838
10N
10N
10N
12
R872
5K1 1%
13
R885
150K
+
1
8
LM324D
9
100K
R895
3V7 WHEN DETECTING TONE
10K
C879
10U
R894
4K7
R892
330K
3
2
C848
1U0
0
BAV70
D860
1
3
BAV70
D860
14
R873
2K2
V+
VARIANT
DEVICES
4
IC850
LM324D
SPEECH
2R8
+9V
TAIT
D820A
SOD-323
DRAWN
CHKD
D.O.
APVD
DATE
T855RX
Sheet 8 – T855 Microcontroller
220-01396-03
03B
ID:.
2.SC. 8
AB24_2
PROJECT:
AMENDMENTS
ISSUE:
220-01396-03
11
ELECTRONICS
T855
MICROCONTROLLER
LOCK-DETECT
C850
47N
IPN:
VREV/ISS
1
+
IC850
R891
BAV70
D880
470K
R897
10K
R890
150K
2
3
2
R898
10
C846
1U0
3
BAV70
D880
+4V2
R889
100K
C844
1U0
7
LM324D
IC850
Q895
BC848
C842
1U0
-
+9V
+
-
6
R888
8K2 1%
5
7
VREF
GND
8
C876
100U
3
6
Z
INH
11
A
10
B
9
C
IC840
4053BD
14
12
X
X0
13
X1
2
Y0
1
Y1
5
Z0
15
3
Y
Z1
4V2
IC830
LM324D
R868
4K7
16
+V
100K
1M2 1%
IC830
LM324D
R861
R879
R870
4V2
C826
R871
820K 1%
R869
27K 1%
2
4
R877
100K
4
1M2 1%
0
R875
4K7
R867
820K
3V8
R887
1K0 1%
LM324D
IC850
+
+9V
C840
47N
100K
IC830
LM324D
2A8
3R8
4A8
5B7
6B3
7A5
GND
7
+4V2
V+
6B0
1
3
10K 1%
R884
150K
13
-
+
+9V
R886
C873
22N
4V2
+9V
+9V
DGND
5
IC850
LM324D
-
LM324D
IC830
C833
22N
+4V2
6B4
6
2K7
R863
4K7
C820
220P
C818
10N
47K
820K
R865
1U0
C819
6B4
10N
R866
C832
14
R881
47K
C834
47N
C815
10N
R882
Q890
BC848
+4V2
12
DESIGNER:
BENC
FILE
NAME:
1396_03B
FILE
DATE:
02-02-99
NO.SHEETS:
10
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01396-03
T855 PCB Information
M8SL2-00-002-812
A
B
C
D
E
F
G
H
J
K
L
B6.3.27
M
9
9
8
8
ANTENNA
1R8
7
L910
L920
L930
L940
2.5T/2.5
1.5T/4.0
1.5T/4.0
2.5T/2.5
C910
3P3
C920
6P8
GND
6
C930
8P2
F-END-SIG
4A5
7
C940
6P8
C950
3P3
6
1R0
1R0
2A7
3A1
4A7
5A5
6B1
7A4
8A0
6B2
5
5
HARMONIC-FILTER
4
4
DIODE PHYSICAL PIN OUTS
3
TO-92
PNP
K
KA
A
C
G
C
SOT23
DIODES
SOT23
DIODES
SOT23
DIODES
SOT23
PNP
SOT23
FET
SOT23
NPN
A
A
K
A
BAV70
2
K
BAV99
BAT17DS
TANTALUMS
TRANSISTOR PHYSICAL PIN OUTS
B
K
BAW56
BC857
BC807
E
D
BFR31
S
B
E
BC848
BC817
MMBR571
MMBR951L
TO-92
FET
E
D
B
S
C
G
BC557
BF247
3
TO-126
PNP
B
C
E
CHIP
TANTALUMS
BD234
2
1
1
TAIT
ELECTRONICS
T855
HARMONIC-FILTER
0
IPN:
ISSUE:
220-01396-03
PROJECT:
REV/ISS
AMENDMENTS
© Copyright Tait Electronics Limited August 2004. All rights reserved.
DRAWN
CHKD
D.O.
APVD
DATE
T855RX
DESIGNER:
BENC
03B
FILE
NAME:
1396_03B
0
ID:.
2.SC. 9
FILE
DATE:
02-02-99
Sheet 9 – T855 Harmonic Filter
220-01396-03
NO.SHEETS:
10
IPN 220-01396-03
B6.3.28
T855 PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
CI
M8SL2-00-002-812
Part C
T854 Transmitter
This part of the manual is divided into six sections, as listed below. There is a detailed
table of contents at the start of each section.
Section
Title
1
General Information
2
Circuit Operation
3
Initial Tuning and Adjustment
4
Functional Testing
5
Fault Finding
6
PCB Information
© Copyright Tait Electronics Limited August 2004. All rights reserved.
CII
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 General Information
M8SL2-00-002-812
1
C1.1
T854 General Information
This section provides a brief description of the T854 transmitter, along with detailed
specifications and a list of types available.
The following topics are covered in this section.
Section
Title
Page
1.1
Introduction
1.5
1.2
Specifications
1.6
1.2.1
Introduction
1.6
1.2.2
General
1.6
1.2.3
RF Section
1.7
1.2.4
1.2.4.1
1.2.4.2
1.2.4.3
Audio Processor
Inputs
Modulation Characteristics
CTCSS
1.8
1.9
1.9
1.9
1.2.5
Microcontroller
1.10
1.2.6
1.2.6.1
1.2.6.2
1.2.6.3
Test Standards
European Telecommunication Standard
DTI CEPT Recommendation T/R-24-01
Telecommunications Industry Association
1.10
1.10
1.10
1.10
Figure
Title
Page
1.1
T854 Main Circuit Block Identification
1.2
1.2
T854 Front Panel Controls
1.3
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C1.2
T854 General Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Key:
1
2
3
4
5
6
7
3
low pass filter
PA
exciter drive amplifier
audio processor
VCO
regulators
synthesiser
4
Figure 1.1 T854 Main Circuit Block Identification
© Copyright Tait Electronics Limited August 2004. All rights reserved.
7
8
C
9
RF output
D-range connector (“D-range 1”) incl. audio in and DC in
(refer to Section 1.5 in Part G)
microcontroller
6
A
10
B
1
T854 General Information
C
A
B
8 microcontroller and CTCSS
9 duct for cabling to extra D-range (if fitted)
10 D-range
5
2
M8SL2-00-002-812
C1.3
C1.4
T854 General Information
On LED
Supply LED
The On LED is lit when the
T854 is transmitting.
The Supply LED is lit when
DC power is supplied to the
transmitter.
M8SL2-00-002-812
Carrier Switch
Line Sensitivity
Microphone Socket
Keys the transmitter (while
disabling the 600Ω line and
microphone audio).
Sets the gain of the 600Ω line
input of the audio processor.
For connecting a T800-80 microphone to allow local control of
the transmitter. The 600Ω line is
disabled when the PTT button is
pressed.
Figure 1.2 T854 Front Panel Controls
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
1.1
T854 General Information
C1.5
Introduction
The T854 is a synthesised, microprocessor controlled FM base station transmitter
designed for single or multichannel operation in the 400 to 520MHz frequency range1
with a standard power output of 25W. The RF section of the transmitter comprises a frequency synthesiser which provides 100mW of frequency modulated RF drive to a two
stage, wide band driver stage followed by a 25W power amplifier. A thermal shutdown
feature is provided in the T854 in case operating temperatures exceed acceptable levels.
The T854 is rated for a continuous output power of 25W at +60°C. This is achieved via a
high capacity heatsink, electric fan and shroud. The fan forces air across the heatsink to
dissipate the heat. The heatsink replaces one of the usual T800 covers.
A wide selection of audio characteristics may be obtained from the audio processor.
Optional circuit blocks are an audio compressor and a pre-emphasis stage. They can be
bypassed or linked to one or both audio inputs, and then back into the remaining audio
circuitry in almost any combination. All audio processor options are link selectable.
The synthesiser frequency is programmed via the serial communications port. Eight
channel select lines are accessible via an optional D-range connector (D-range 2 –
T800-03-0000) at the rear of the set.
All components except those of the VCO are mounted on a single PCB. This is secured
to a die-cast chassis which is divided into compartments to individually shield each section of circuitry. Access to the PCB is primarily through the top cover of the radio, as all
components are mounted on the top side of the PCB. There is provision within the chassis to mount small option PCBs.
The front panel controls include line sensitivity, microphone socket and carrier switch.
This switch turns on the carrier (unmodulated) as an aid to servicing.
1. Although capable of operating over the 400 to 520MHz frequency range, the T854 has
an 8MHz switching range (see Section 1.2.3 and Section 3.1).
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C1.6
T854 General Information
1.2
Specifications
1.2.1
Introduction
M8SL2-00-002-812
The performance figures given are minimum figures, unless otherwise indicated, for
equipment tuned with the maximum switching range and operating at standard room
temperature (+22°C to +28°C) and standard test voltage (13.8VDC).
Where applicable, the test methods used to obtain the following performance figures
are those described in the EIA and ETS specifications. However, there are several
parameters for which performance according to the CEPT specification is given. Refer to
Section 1.2.6 for details of test standards.
Details of test methods and the conditions which apply for Type Approval testing in all
countries can be obtained from Tait Electronics Ltd.
The terms “wide bandwidth”, “mid bandwidth” and “narrow bandwidth” used in this
and following sections are defined in the following table.
Channel Spacing
Modulation
100% Deviation
Receiver
IF Bandwidth
Wide Bandwidth
25kHz
±5.0kHz
15.0kHz
Mid Bandwidth
20kHz
±4.0kHz
12.0kHz
12.5kHz
±2.5kHz
7.5kHz
Narrow Bandwidth
1.2.2
General
Number Of Channels
… 128 (standard)
Supply Voltage:
Operating Voltage
Standard Test Voltage
Polarity
Polarity Protection
Line Keying Supply (if required)
…
…
…
…
…
10.8 to 16VDC
13.8VDC
negative earth only
crowbar diode
–50VDC
Supply Current:
Transmit
Standby
– T854
– T854
… 5.5A (typical)
… 150mA (typical)
Operating Temperature Range
… –30°C to +60°C
Time-Out Timer (optional)
… 0 to 10 minutes adjustable in 10 second steps
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
T854 General Information
C1.7
Tail Timer
… 0 to 5 seconds adjustable in 20ms
steps
Transmit Key Time
… Typically 35ms
Transmit Lockout Timer
… 0 to 1 minute adjustable in 10 second
steps
1.2.3
RF Section
Frequency Range
… 400 to 520MHz
Modulation Type
… FM
Frequency Increment
… 5 or 6.25kHz
Switching Range
… 8MHz (i.e. ±4MHz from the centre
frequency)
Load Impedance
… 50Ω
Frequency Stability
… ±1ppm, –30°C to +60°C
Adjacent Channel Power (full deviation):
Wide Bandwidth (WB)
(±25kHz/15kHz B/W)
… –75dBc
Mid Bandwidth (MB)
(±20kHz/12kHz B/W)
… –70dBc
Narrow Bandwidth (NB)
(±12.5kHz/7.5kHz B/W)
… –65dBc
Transmitter Switching
… complies with ETS 300 113
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C1.8
T854 General Information
M8SL2-00-002-812
Transmitter Side Band Noise:
(no modulation, 15kHz bandwidth)
At ±25kHz
At ±1MHz
… –95dBc
… –105dBc
Intermodulation
… –40dBc with interfering signal of
–30dBc
… –70dBc with 25dB isolation
and interfering signal of –30dBc
(PA with output isolator)
T854 Mismatch Capability:
Ruggedness
… refer to your nearest Tait Dealer or
Customer Service Organisation
… 3:1 VSWR (all phase angles)
Stability
Radiated Spurious Emissions:
Transmit
… –36dBm to 1GHz
–30dBm 1GHz to 4GHz
… –57dBm to 1GHz
–47dBm 1GHz to 4GHz
Standby
Conducted Spurious Emissions: (T854 Only)
Transmit
… –36dBm to 1GHz
–30dBm 1GHz to 4GHz
… –57dBm to 1GHz
–47dBm 1GHz to 4GHz
Standby
Power Output:
T854
– Rated Power
– Range Of Adjustment
Duty Cycle
… 25W
… 5 to 25W
… 100% at 25W at +60°C
1.2.4
Audio Processor
1.2.4.1
Inputs
Inputs Available
… line, microphone and CTCSS
Line Input:
Impedance
Sensitivity (60% modulation at 1kHz)
With Compressor
Without Compressor
… 600Ω (balanced)
… –50dBm
… –30dBm
Microphone Input:
Impedance
… 600Ω
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
Sensitivity (60% modulation at 1kHz)
With Compressor
Without Compressor
1.2.4.2
T854 General Information
C1.9
… –70dBm
… –50dBm
Modulation Characteristics
Frequency Response
(below limiting)
… flat or pre-emphasised (optional)
Line And Microphone Inputs:
Pre-emphasised Response
Bandwidth
Below Limiting
Flat Response
… 300Hz to 3kHz (WB and MB)
… 300Hz to 2.55kHz (NB)
… within +1, –3dB of a 6dB/octave
pre-emphasis characteristic
… within +1, –2dB of output at 1kHz
Above Limiting Response
… within +1, –2dB of a flat response
(ref. 1kHz)
Distortion
… 2% max.
Hum And Noise:
Wide Bandwidth
Mid Bandwidth
Narrow Bandwidth
… –55dB (300Hz to 3kHz [EIA]) typical
… –54dB (CEPT)(typical)
… –50dB (CEPT)(typical)
Compressor (optional):
Attack Time
Decay Time
Range
1.2.4.3
… 10ms
… 800ms
… 50dB
CTCSS
Standard Tones
… all 37 EIA group A, B and C tones
plus 13 commonly used tones
Frequency Error
(from EIA tones)
… 0.08% max.
Generated Tone Distortion
… 1.2% max.
Generated Tone Flatness
… flat across 67 to 250.3Hz to within 1dB
Modulation Level
… adjustable
Modulated Distortion
… <5%
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C1.10
T854 General Information
1.2.5
Microcontroller
M8SL2-00-002-812
Auxiliary Ports:
Open Drain Type
Vds max.
1.2.6
… capable of sinking 2.25mA via 2.2kΩ
… 5V
Test Standards
Where applicable, this equipment is tested in accordance with the following standards.
1.2.6.1
European Telecommunication Standard
ETS 300 086 January 1991
Radio equipment and systems; land mobile service; technical characteristics and test
conditions for radio equipment with an internal or external RF connector intended primarily for analogue speech.
ETS 300 113 March 1996
Radio equipment and systems; land mobile service; technical characteristics and test
conditions for radio equipment intended for the transmission of data (and speech) and
having an antenna connector.
ETS 300 219 October 1993
Radio equipment and systems; land mobile service; technical characteristics and test
conditions for radio equipment transmitting signals to initiate a specific response in the
receiver.
ETS 300 279 February 1996
Radio equipment and systems; electromagnetic compatibility (EMC) standard for private land mobile radio (PMR) and ancillary equipment (speech and/or non-speech).
1.2.6.2
DTI CEPT Recommendation T/R-24-01
Annex I: 1988
Technical characteristics and test conditions for radio equipment in the land mobile
service intended primarily for analogue speech.
Annex II: 1988
Technical characteristics of radio equipment in the land mobile service with regard to
quality and stability of transmission.
1.2.6.3
Telecommunications Industry Association
ANSI/TIA/EIA-603-1992
Land mobile FM or PM communications equipment measurement and performance
standards.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Circuit Operation
M8SL2-00-002-812
2
C2.1
T854 Circuit Operation
This section provides a basic description of the circuit operation of the T854 transmitter.
Unless otherwise specified, the term “PGM800Win” used in this and following sections refers to version 4.02 and later of the software.
Note:
Refer to Section 6 where the parts lists, grid reference index and diagrams will provide
detailed information on identifying and locating components and test points on the
main PCB. The parts list and diagrams for the VCO PCB are in Part E.
The following topics are covered in this section.
Section
Title
Page
2.1
Introduction
2.3
2.2
Microcontroller
2.4
2.3
Synthesised Local Oscillator
2.5
Two Point Modulation
2.6
VCO
2.7
VCO Supply
2.7
Audio Processor
2.8
2.5.1
General
2.8
2.5.2
Audio Inputs
2.8
2.5.3
Keying Inputs
2.9
2.5.4
Compressor (Automatic Level Control (ALC))
2.9
2.5.5
Outputs To Modulators
2.9
2.6
Power Supply and Regulator Circuits
2.10
2.7
Transmit Timers
2.11
2.8
T854 Drive Amplifier, Fan Control and PA
2.12
2.3.1
2.4
2.4.1
2.5
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C2.2
T854 Circuit Operation
M8SL2-00-002-812
Figure
Title
Page
2.1
T854 High Level Block Diagram
2.3
2.3
T854 Microcontroller Block Diagram
2.4
2.4
T854 Synthesiser Block Diagram
2.5
2.5
T854 Two Point Modulation
2.6
2.6
T854 Audio Processor Block Diagram
2.8
2.7
T854 Power Supply and Regulators Block Diagram
2.10
2.8
T854 Transmit Timers
2.11
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Circuit Operation
M8SL2-00-002-812
2.1
C2.3
Introduction
The individual circuit blocks which make up the T854 are:
• synthesiser
• VCO
• audio processor
• drive amplifier
• voltage regulators.
Each of these circuit blocks is set in its own shielded compartment, formed as an integral part of the main chassis.
The configuration of the circuit blocks may be seen on a functional level in Figure 2.1 .
Refer to the circuit diagrams in Section 6.2 for more detail.
PIN
Switch
Reference
Oscillator
12.8MHz
Synthesiser
Drive
Amp.
+22dBm
Exciter
Output
(+30dBm to
+33dBm)
PA
Directional Low Pass
Coupler
Filter
Transmitter
Output
(25W)
Lock
Detect
Microphone
Power
Control
Audio
Processor
Line
Time
Delay
Transformer
&
Gate
Time
Delay
Ramp
Gen.
Time
Delay
Tx Reg
Figure 2.1 T854 High Level Block Diagram
© Copyright Tait Electronics Limited August 2004. All rights reserved.
VCO
C2.4
T854 Circuit Operation
2.2
Microcontroller
M8SL2-00-002-812
Refer to the microcontroller circuit diagram (Sheet 8 – T854 Microcontroller) in Section
6.2
Watchdog
Reset
5V Digital
Regulator
5V
Reset
Microcontroller Cavity
Channel
Select
Port
12.8MHz
Clock
External
Serial
Port
CTCSS Tone
Microcontroller
Auxiliary
Output
Port
Dual Digital
Potentiometer
Converter
CTCSS
Encoder
EEPROM
Synthesiser
Figure 2.2 T854 Microcontroller Block Diagram
Overall system control of the T854 is accomplished by the use of a member of the 80C51
family of microcontrollers (IC810). It runs from internal ROM and RAM, thus leaving all
four ports free for input/output functions.
Non-volatile data storage is achieved by serial communication with a 16kBit EEPROM
(IC820). This serial bus is also used by the microcontroller to program the synthesiser
(IC740) and deviation control EPOTS (IC220).
The main tasks of the microcontroller are as follows:
• program the synthesiser and EPOT;
• interface with the PGM800Win programming software at 9600 baud via the
serial communication lines on D-range 1 (PL100) and D-range 2;
• monitor channel change inputs from D-range 2;
• generate timing waveforms for CTCSS encoding;
• coordinate and implement timing control of the transmitter.
• control the front panel “Supply” LED (refer to Section 5.3).
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Circuit Operation
M8SL2-00-002-812
2.3
C2.5
Synthesised Local Oscillator
Refer to the synthesiser circuit diagram (Sheet 7 – T854 Synthesiser) in Section 6.2 and
the VCO circuit diagram in Part E.
VCO
Modulation
FREQUENCY SYNTHESISER IC
12.8MHz
Reference
Oscillator
Fixed
Divider
Reference
Divider
/64
Phase
Detector
Charge
Pump
Loop
Filter
VCO
Serial
Bus
Phase
Modulator
Clk
Data
En
Buffer
Σ
/R
fref
Ref
Mod
VCO PCB
Programmable
Divider
Prescaler
/N
64/65
Output
Buffer
+22dBm
L.O.
f in
Divider Buffer
Controller
Figure 2.3 T854 Synthesiser Block Diagram
The synthesiser (IC740) employs a phase-locked loop (PLL) to lock a voltage controlled
oscillator (VCO) to a given reference frequency. The synthesiser receives the divider
information from the control microprocessor via a 3 wire serial bus (clock, data, enable).
When the data has been latched in, the synthesiser processes the incoming signals from
the VCO buffer (fin) and the phase modulator (fref).
A reference oscillator at 12.8MHz (=IC700) is buffered (IC710 pins 3 and 4) and divided
down to 200kHz (IC730). This 200kHz square wave is then summed with the modulating audio and passed to an integrator (IC720 pins 9 and 8, Q710, Q720). This produces a
ramping waveform which is centred around a DC level determined by the incoming
audio. IC720 pins 5 and 6 perform as a comparator, ultimately producing a phase-modulated 200kHz square wave. This is followed by another phase shifting stage (IC720
pins 3 and 4, Q730, Q740), before being divided down to 6.25kHz or 5kHz within the
synthesiser IC (IC740).
A buffered output of the VCO (Q795) is divided with a prescaler and programmable
divider which is incorporated into the synthesiser chip (IC740). This signal is compared
with the phase modulated reference signal at the phase detector (also part of the synthesiser chip). The phase detector outputs drive a balanced charge pump circuit (Q760,
Q770, Q775, Q780, Q785) and active loop filter (IC750 pins 5, 6 and 7, Q790) which produces a DC voltage between 0V and 20V to tune the VCO. This VCO control line is further filtered to attenuate noise and other spurious signals. Note that the VCO frequency
increases with increasing control voltage.
If the synthesiser loop loses lock, a pulsed signal appears at LD (pin 2) of IC740. This
signal is filtered and buffered by IC750 pins 1, 2 and 3, producing the Lock-Detect signal
used to shut off the power supply to the drive amplifier. IC750 pin 1 is at 20V when the
synthesiser is out of lock.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C2.6
T854 Circuit Operation
2.3.1
Two Point Modulation
M8SL2-00-002-812
Frequency modulation occurs by modulating both the VCO input and the synthesiser
reference input. This process is called two point modulation and ensures a flat modulation response from 67Hz to 3kHz (2.55kHz for narrow bandwidth).
The PLL has a fast response time, allowing a Tx key-up time of <30ms. Because of this
fast response time the PLL sees lower modulation frequencies superimposed on the
VCO as an error and corrects for it, resulting in no modulation on the carrier. At modulation frequencies greater than 300Hz the loop cannot correct fast enough and modulation is seen on the carrier. The response of the loop to VCO modulation is shown by f2 in
Figure 2.4 below.
To achieve low frequency modulation, the reference oscillator is also modulated so that
the phase detector of IC740 detects no frequency error under modulation. Thus, the synthesiser loop will not attempt to correct for modulation and the audio frequency
response of the transmitter remains unaffected. The response of the loop to reference
frequency modulation is shown by f1 in Figure 2.4.
The reference modulation is controlled by a 256-step 10k electronic potentiometer
(EPOT) which is adjustable via PGM800Win. The EPOT is made up of 256 resistive sections (representing approximately 39Ω each) which can be individually addressed by
the microcontroller. Each section can be switched in or out of circuit to achieve the
required total resistance, thus giving control of the reference modulation.
f1
f2
TCXO
VCO
Deviation
Frequency
Figure 2.4 T854 Two Point Modulation
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
2.4
T854 Circuit Operation
C2.7
VCO
(Refer to the VCO circuit diagram in Part E.)
The VCO transistor (Q1) operates in a common emitter configuration, with an LC tank
circuit coupled between its gate and drain to provide the feedback necessary for oscillation. The VCO control voltage from the loop filter (IC750) is applied to the varicaps (D1
and D2) to facilitate tuning within an 8MHz band of frequencies. A trimcap (C6) is used
for coarse tuning of the VCO. The output from the oscillator circuit drives a cascode
amplifier stage (Q2, Q3) which supplies +10dBm (typically) to a further stage of amplification, Q5. This is the final amplifier on the VCO PCB, and delivers +20dBm (typically)
to the exciter drive amplifier.
A low level “sniff” is taken from the input to Q5 and used to drive the divider buffer for
the synthesiser (IC740).
The VCO operates at the actual output frequency of the exciter, i.e. there are no multiplier stages. It is modulated by superimposing the audio signal onto the control voltage
and by phase modulating the reference signal.
2.4.1
VCO Supply
The VCO is supplied from two switched +9V supplies under the control of the Tx-Reg.
supply.
The VCO and buffer amplifier are supplied from one +9V switched supply by Q540 via
the C multiplier (Q550, C530 on the T854 and C550 on the T857).
The output amplifier is supplied from the other +9V supply by Q520, Q530, and Q510.
A delay circuit holds the VCO on for a short time after the Tx-Reg. supply has been
switched off. This is to allow the RF power circuits (both exciter and PA) to ramp down
in the correct manner before the VCO is switched off.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C2.8
T854 Circuit Operation
2.5
Audio Processor
M8SL2-00-002-812
Refer to the audio processor circuit diagram (Sheet 2 – T854 Audio Processor) in Section
6.2.
Carrier
+
Opto-Key
Opto-coupler
Tx Enable
_
Constant Current Sink
Tx Key
2
4
6
PTT
3
5
Link 4
B
6
C
PL201
mic.
Line Input
line
Multiplexer
Audio 1
Compressor
Output
Inhibit
Output
Microphone
Input
Inputs
Microphone
Pre-amp.
14
12
10
Link 1
H
3
I
5
J
PL202
Limiter
Set Deviation
Link 13
N
11
M
9
L
PL202
Digital Pot. (EPOT)
Preemphasis
Σ
9
7
Audio 2
Link 10
E
8
D
PL201
CTCSS
Low Pass
Filter
Ref. Mod. Adjust
Digital Pot. (EPOT)
Integrator
Buffer
Output
To VCO
Ref.
Mod.
Figure 2.5 T854 Audio Processor Block Diagram
2.5.1
General
The audio processor comprises several link selectable circuit blocks which may be configured in a variety of combinations to suit individual requirements. The pre-emphasis
network and compressor may be linked individually or cascaded between either or both
audio inputs and the limiter.
Refer to Section 3.5.1 for linking details.
2.5.2
Audio Inputs
Two audio inputs are available: one from a 600Ω balanced (or unbalanced) line, and the
other from a local microphone. The microphone signal is passed first to a pre-amplifier
(Q210) and ultimately to a multiplexer (IC240), but in between may pass through the
compressor (depending on the linking details). The line transformer is also connected to
the multiplexer and is disabled by the microphone PTT switch.
A third input for external CTCSS tones is also provided.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
2.5.3
T854 Circuit Operation
C2.9
Keying Inputs
There are four ways to key the exciter:
• pulling the Tx-Key line low (pin 13 on D-range 1 [PL100]) at the rear of the set);
• pushing the “Carrier” button on the front panel – this will inhibit all audio;
• using the PTT button on the local microphone, disabling audio from the line;
• via the opto-key inputs (pins 11 and 12 on D-range 1 [PL100]) when electrical
isolation is required. This features a constant current sink (Q270) to ensure reliable activation of the opto-coupler (IC250) at low keying voltages.
2.5.4
Compressor (Automatic Level Control (ALC))
The input signal is fed via a current controlled attenuator (Q230, Q220) to a high gain
stage (IC230) from which the output signal is taken. This signal is passed to a comparator (IC230) which toggles whenever the audio signal exceeds a DC threshold determined by RV220. Thus, the comparator produces a square wave whose mark-space ratio
is determined by the amplitude of the audio signal. This square wave pumps up the reservoir capacitor (C233) which controls the attenuator (Q230, Q220), thus completing the
feedback loop.
The compression level is set by adjustment of the comparator threshold (RV220).
Note:
Although the high dynamic range of the compressor allows the use of very
low audio signal levels, such conditions will be accompanied by a degradation of the signal-to-noise ratio. Very low audio input levels should therefore
be avoided where possible.
2.5.5
Outputs To Modulators
The output signal from the limiter (IC210, IC230) is summed with a CTCSS tone at a
summing amplifier (IC260). The signal is then low pass filtered (IC260) and split to supply the two modulators.
Since the VCO modulator is a true frequency modulator, its audio is simply buffered
(IC260). The reference modulator, however, is a phase modulator and its audio must
first be integrated (IC210).
It is vital that the audio levels to the modulators are accurately set, relative to each
other. Hence the inclusion of level adjustment in the reference modulator path. Once
set, adjustments to absolute deviation may be made only by IC220, a 256-step 10k electronic potentiometer (EPOT), which is controlled via PGM800Win. The EPOT is made
up of 256 resistive sections (representing approximately 39Ω each) which can be individually addressed by the microcontroller. Each section can be switched in or out of circuit to achieve the required total resistance, thus adjusting the absolute deviation level.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C2.10
T854 Circuit Operation
2.6
Power Supply and Regulator Circuits
M8SL2-00-002-812
Refer to the regulators circuit diagram (Sheet 6 – T854 Regulators) in Section 6.2.
+9V
Buffer
Power
Switch
Microcontroller
Tx Enable
IC 370
Tx Reg.
9v Ex
9v Reg
Watchdog
Timer
13.8V Nom.
From Rear
D-Range
DC
Amp
5V
Reg
Crowbar
Diode
13.8V
Nom.
5V
5V Dig
Reg
Switching
PS
9V
20V
LVI
µP
µP
Reset
5V Dig
Figure 2.6 T854 Power Supply and Regulators Block Diagram
The T854 is designed to operate from a 10.8 to 16VDC supply (13.8V nominal). A 5.3V
regulator (IC630) runs directly from the 13.8V rail, driving much of the synthesiser circuitry. It is also used as the reference for a DC amplifier (IC640, Q630, Q620) which
provides a medium current capability 9V supply. The T854 has a regulator (IC370)
which produces 9V for use in the exciter and audio circuits.
A switching power supply (Q660, Q670) runs from the 9V supply and provides a low
current capability +20V supply. This is used to drive the synthesiser loop filter (IC750),
giving a VCO control voltage range of up to 20V.
Ultimate control of the transmitter is via the Tx-Reg. supply, switched from 9V by Q610.
This is enabled via the Tx-Enable signal from the audio processor, and microprocessor.
A crowbar diode is fitted for protection against connection to a power supply of incorrect polarity. It also provides transient overvoltage protection.
Note:
A fuse must be fitted in the power supply line for the diode to provide effective protection.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Circuit Operation
M8SL2-00-002-812
2.7
C2.11
Transmit Timers
The transmit tail timer, transmit timeout timer and transmit lockout timer can all be set
from PGM800Win. The fields for setting these are found on the system information
page. These three timers operate as follows (refer also to Figure 2.7):
Timer
Function
Adjustment
Transmit Tail
Sets the tail time during which the
transmitter stays keyed after the external key source has been removed.
0 to 5 seconds in
20ms steps
Transmit Timeout
Sets the maximum continuous transmission time. Once the timer has
timed out, the transmitter must be
keyed again, unless prevented by the
transmit lockout timer.
0 to 600 seconds in
10 second steps
Transmit Lockout
Sets the period of time that must
elapse after a timeout before the transmitter can re-transmit. Once the timer
has timed out, the transmitter can be
keyed again.
0 to 60 seconds in 10
second steps
Tx-Enable
On
Tx-Reg.
Tx-Enable
Tail Time
On
Tx-Reg.
Lockout Time
Timeout
Time
Figure 2.7 T854 Transmit Timers
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C2.12
T854 Circuit Operation
2.8
T854 Drive Amplifier, Fan Control and PA
M8SL2-00-002-812
Refer to Figure 2.1 and the exciter and PA circuit diagrams (sheets 3 and 4) in Section
6.2.
The output power of the PA is maintained at a constant level via a power control loop
applied to the two-stage, wide band exciter amplifier (Q337, Q336). The forward and
reverse RF power levels are sensed via a dual directional coupler and detector diodes
(D440, D420 in the PA cavity). The detected DC signals are buffered (IC330 pins 3 and 5)
and then summed with the ‘power control’ level and fed to the control integrator (IC350
pin 6).
Note:
Forward and reflected power signals are summed so that, under high
VSWR, the power control will turn the output RF level down.
To reduce the spurious output level when the synthesiser is out-of-lock, the Tx-Reg. and
Lock-Detect signals are gated to inhibit the PA control circuit and to switch off the RF
signal at the input to the drive amplifier. This is achieved by a PIN switch attenuator
(D340, D380, D360).
Cyclic keying control is provided by additional circuitry consisting of several time
delay, ramp and gate stages:
• Q330, IC350
power ramping
• Q326, Q325, Q341
Tx-Reg. and Lock-Detect gate
• Q335, Q340, Q345
delay and PIN switch drive.
This is to allow the RF power circuits (both exciter and PA) to ramp up and down in a
controlled manner so that minimal adjacent channel interference is generated during
the transition.
The output of the wide band amplifier is approximately 1W (+30dBm) for an input of
100mW (+20dBm) from the VCO, when the power control is set to maximum.
A temperature sensor (R481) in the PA cavity presents a voltage to the comparators of
IC340 pin 2 and IC350 pin 2. The fan is switched on and off by the comparator of IC340
and the power fold-back is enabled by the comparator of IC350. Power fold-back
reduces the output power to a preset level that protects the PA semiconductors from
excessive temperatures. Under normal operating conditions, the fan will be activated
before power fold-back can occur and it will prevent the temperature from reaching
damaging levels. The voltage divider ratio of R311 and R312 sets the the temperature at
which the fan is switched on and off. R306 and R340 set the temperature at which power
is reduced. Depending on ambient temperature and ventilation, it may take several
minutes of continuous operation for the fan to be activated.
#R517, #R518 and #R519 form an attenuator to provide good VCO/exciter isolation as
well as the correct exciter drive level.
The attenuator (#R395, #R396 and #R397) aids in producing the correct exciter drive
level to the PA over the three frequency ranges.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
T854 Circuit Operation
C2.13
The RF output from the exciter is fed to the driver stage (Q410) and then to the final
(Q420). DC is fed to the final via a low pass filter with special low frequency decoupling.
CV475 tunes the output matching across the entire band.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C2.14
T854 Circuit Operation
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Initial Tuning and Adjustment
M8SL2-00-002-812
3
C3.1
T854 Initial Tuning and Adjustment
Caution:
This equipment contains CMOS devices which are susceptible to damage from static charges. Refer to Section 1.2 in Part A for more information on anti-static procedures when handling these devices.
The following section describes both short and full tuning and adjustment procedures
and provides information on:
• channel programming
• selecting required audio links
• synthesiser alignment
• PA alignment
• modulator adjustment
• limiter adjustment
• setting line level
• compressor adjustment
• timer adjustment.
Unless otherwise specified, the term “PGM800Win” used in this and following sections refers to version 4.02 and later of the software.
Note:
Refer to Figure 4.4 which show the location of the main tuning and adjustment controls.
Refer also to Section 6 where the parts lists, grid reference index and diagrams will provide detailed information on identifying and locating components and test points on
the main PCB. The parts list and diagrams for the VCO PCB are in Part E.
Section
Title
Page
3.1
Introduction
3.3
3.2
Channel Programming
3.3
3.3
Test Equipment Required
3.4
3.4
Short Tuning Procedure
3.5
3.4.1
Introduction
3.5
3.4.2
Synthesiser Alignment
3.5
3.4.3
Output Power Adjustment
3.5
3.4.4
Two Point Modulation Adjustment
3.6
3.4.5
CTCSS Encoder (If Used)
3.7
3.4.6
FM Deviation (Limiter) Adjustment
3.7
3.4.7
Line-in Level Adjustment
3.7
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C3.2
T854 Initial Tuning and Adjustment
Section
3.5
Title
M8SL2-00-002-812
Page
Audio Processor Links
3.8
3.5.1
Link Details
3.8
3.5.2
Typical Options
3.8
3.6
Synthesiser Alignment
3.9
3.7
PA Alignment
3.10
3.8
Thermal Shutdown
3.10
3.9
Audio Processor and CTCSS
3.11
3.9.1
Two Point Modulation
3.11
3.9.2
Modulator Adjustment
3.11
3.9.3
CTCSS Encoder (If Used)
3.12
3.9.4
Limiter Adjustment
3.12
3.9.5
Line Level Without Compressor
3.13
3.9.6
3.9.6.1
3.9.6.2
3.9.6.3
Compressor
Compressor On Line Input Only
Compressor On Microphone Input Only
Compressor On Both Line and Microphone Inputs
3.13
3.13
3.13
3.14
Power Alarms (if used)
3.14
T1500-52-0000 Tx Alarm/Multi-channel Kit
Installation
T1500-52-0000 Testing/Alignment
3.15
3.15
3.17
3.10
3.10.1
3.10.1.1
3.10.1.2
3.10.2
3.10.2.1
3.10.2.2
Figure
T800-10-0520 Tx-Alarm/Channel-Select Kit
Installation
T800-10-0520 Testing/Alignment
Title
3.18
3.19
3.20
Page
3.1
T854 Test Equipment Set-up With T800-01-0010
3.4
3.2
T854 Test Equipment Set-up Without T800-01-0010
3.4
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
3.1
T854 Initial Tuning and Adjustment
C3.3
Introduction
When you receive your T854 transmitter it will be run up and working on a particular
frequency (the “default channel")1. If you want to switch to a frequency that is within
the 8MHz switching range (i.e. ±4MHz from the factory programmed frequency), you
should only need to reprogram the transmitter with the PGM800Win software (refer to
the PGM800Win programming kit and Section 3.2 below).
However, if you want to switch to a frequency outside the 8MHz switching range, you
will have to reprogram and re-tune the transmitter to ensure correct operation. In this
case you should carry out the short tuning procedure described in Section 3.4.
If you have carried out repairs or other major adjustments, you must carry out the full
tuning and adjustment procedure described in this section (except for Section 3.4).
3.2
Channel Programming
You can program up to 128 channel frequencies into the transmitter’s EEPROM memory
(IC820) by using the PGM800Win software package and a PC. You can also use
PGM800Win to select the transmitter’s current operating frequency (or “default channel").
If the transmitter is installed in a rack frame, you can program it via the programming
port in the speaker panel. However, you can also program the transmitter before it is
installed in a rack frame as follows:
• by using a T800-01-0010 calibration test unit;
• via D-range 1;
• via D-range 2 (standard T800-03-0000 auxiliary D-range only);
• via SK805 (internal Micromatch connector).
If you do not use the T800-01-0010, you will have to connect the PC to the transmitter
via a module programming interface (such as the T800-01-0004).
For a full description of the channel programming procedure, refer to the PGM800Win
programming software user’s manual.
Note:
When an auxiliary D-range kit (D-range 2 – T800-03-0000) is fitted, you can
also select a channel with an external switch, such as the DIP switch on a
backplane PCB. Refer to your nearest Tait Dealer or Customer Service
Organisation for further details.
1. Use the “Read Module” function in PGM800Win to find out what the default channel
is.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C3.4
T854 Initial Tuning and Adjustment
3.3
Test Equipment Required
M8SL2-00-002-812
You will need the following test equipment:
• computer with PGM800Win installed
• T800 programming kit
• module programming interface (e.g. T800-01-0004 – optional)
• 13.8V power supply
• digital multimeter
• audio signal generator
• RF power meter
• audio voltmeter x 2
or RF test set (optional)
• modulation meter
• oscilloscope (digital preferred)
• 20dB or 40dB pad
• T800-01-0010 calibration test unit (optional)
Figure 3.1 and Figure 3.2 show typical test equipment set-ups.
+13.8V
-Ve
Line I/P
600
Audio
Generator
Frequency
Counter
20dB pad: exciter
40dB pad: transmitter
PSU
CTCSS I/P
T800-01-0010
Calibration
Test Unit
RF O/P
Exciter/
Transmitter
Modulation
Meter
AF O/P
Audio
Voltmeter
RF Power
Meter
Audio
Voltmeter
Oscilloscope
PGM800Win
Figure 3.1 T854 Test Equipment Set-up With T800-01-0010
+13.8V
-Ve
Line I/P
600 Ω
Audio
Generator
Frequency
Counter
20dB pad: exciter
40dB pad: transmitter
PSU
Exciter/
Transmitter
RF O/P
Modulation
Meter
CTCSS I/P
AF O/P
Key
Audio
Voltmeter
RF Power
Meter
Serial
Com
Audio
Voltmeter
Oscilloscope
via module programming interface
(e.g. T800-01-0004)
PGM800Win
Figure 3.2 T854 Test Equipment Set-up Without T800-01-0010
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Initial Tuning and Adjustment
M8SL2-00-002-812
3.4
C3.5
Short Tuning Procedure
Use this procedure only if you want to reprogram the T854 to a frequency outside the
8MHz switching range and do not intend to carry out any other major adjustments or
repairs.
3.4.1
Introduction
Reprogram the operating frequency as described in the PGM800Win programming kit (refer to Section 3.2).
Remove the top cover.
Set up the test equipment as described in Section 3.3.
Set the links in the audio processor section as required (refer to Section 3.5).
3.4.2
Synthesiser Alignment
•
Connect a high impedance voltmeter to the long lead of L1 in the VCO (this measures the synthesiser loop voltage).
•
Key the transmitter by earthing the Tx-Key line.
•
Single Channel
Tune VCO trimmer C6 for a synthesiser loop voltage of
10V.
Multichannel
Tune VCO trimmer C6 for a synthesiser loop voltage of
10V on the middle channel.
If there is no middle channel, tune C6 so that the channels
are symmetrically placed around a loop voltage of 10V.
All channels should lie within the upper and lower limits
of 16V and 3V respectively.
Do not attempt to program channels with a greater frequency separation than the specified switching range of
8MHz.
3.4.3
Output Power Adjustment
Connect an RF power meter with suitable attenuation to the output socket and
key the transmitter.
Turn RV310 (power control) fully clockwise.
Tune #CV475 (output power trim) for maximum output power and check that this
is >30W.
Adjust RV310 for the required output power (between 5 and 25W).
Readjust #CV475 to reduce the supply current by up to 0.5A.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C3.6
T854 Initial Tuning and Adjustment
3.4.4
Two Point Modulation Adjustment
Note 1:
In this and following sections deviation settings are given first for wide
bandwidth sets, followed by settings in brackets for mid bandwidth sets ( )
and narrow bandwidth sets [ ].
Note 2:
The reference modulation and limiter adjustments are controlled by 256step electronic potentiometers (EPOTs), which are adjusted via the “Reference Modulation” and “Deviation” settings in PGM800Win. This allows the
two point modulation and deviation settings to be adjusted for each channel.
Note 3:
To optimise the modulation response across the switching range, repeat
steps 1 to 4 below for each channel that will be used (usually needed only
for data applications). In applications where the modulation response is less
critical (e.g. voice use only), carry out steps 1 to 4 below on the middle channel and use the “EPOT Fill” option1 in PGM800Win to copy the value to the
other channels.
Note 4:
If you are using an RF test set, turn the low pass filter off and set the high
pass filter to 15kHz before beginning this procedure.
1.
M8SL2-00-002-812
Inject an audio signal of 300Hz 1.5Vrms (+5dBm) into the CTCSS input (D-range 1
(PL100) pin 8).
Key the transmitter by earthing the Tx-Key line.
2.
Adjust the output from the audio generator to obtain ±3kHz (±2.4kHz) [±1.5kHz]
deviation at 300Hz.
3.
Change the input frequency to 100Hz and, using PGM800Win, adjust the value of
the “Reference Modulation” EPOT setting for the current channel to obtain ±3kHz
(±2.4kHz) [±1.5kHz] deviation (you can use either the mouse or up and down
arrow keys).
4.
Change the input frequency back to 300Hz.
Repeat steps 2 and 3 above until the deviations achieved at the two input frequencies are within 0.2dB of each other. You will need to do this at least four times.
5.
Sweep the audio between 50 and 300Hz for peaks.
Note:
A peak between 50 and 300Hz will indicate a fault condition, i.e:
or
– incorrect set-up
– modulation circuitry fault.
The specification window is ±1dB relative to 150Hz from 67 to 260Hz.
1. Use the “EDIT FILL” button on the tool bar or go to “Edit”, “Fill”, “Epot Settings” on
the menu bar.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
3.4.5
T854 Initial Tuning and Adjustment
C3.7
CTCSS Encoder (If Used)
Program a CTCSS tone on the default channel using PGM800Win.
If you are using an RF test set, turn off the 300Hz high pass filter.
Key the T854 with the front panel “Carrier” switch.
Adjust RV805 (CTCSS level adjust) to give ±500Hz (±350Hz) [±250Hz] deviation.
Set the maximum deviation as per Section 3.4.6.
3.4.6
FM Deviation (Limiter) Adjustment
Note:
If the T854 will be used over the whole 8MHz switching range, you must set
the deviation for each channel. However, if the module will be used on frequencies that cover only a 1MHz (or less) switching range, you can set the
deviation on the middle channel and use this value for all other channels
with the “EPOT Fill” option in PGM800Win.
Inject 1kHz at –10dBm into the line input (D-range 1 (PL100) pins 1 and 4; pins 2
and 3 shorted; refer to Section 1.5 of Part G).
Adjust RV210 (line sensitivity) fully clockwise and key the transmitter by earthing
the Tx-Key line. Using PGM800Win, adjust the value of the “Deviation” EPOT setting for the current channel to obtain a deviation limit of ±4.7kHz (±3.8kHz)
[±2.3kHz] (you can use either the mouse or up and down arrow keys).
Sweep the audio frequency from 100Hz to 4kHz and ensure that the maximum
deviation does not exceed ±4.7kHz (±3.8kHz) [±2.3kHz]. Readjust “Deviation” if
necessary via PGM800Win.
3.4.7
Line-in Level Adjustment
Remove the CTCSS signal (if used).
Set the injected signal at the line input to the required line level (typically –10 to
–20dBm).
Adjust RV210 (line sensitivity) to provide ±3kHz (±2.4kHz) [±1.5kHz] deviation.
Reapply the CTCSS signal (if required).
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C3.8
T854 Initial Tuning and Adjustment
3.5
Audio Processor Links
3.5.1
Link Details
M8SL2-00-002-812
Use the following table to set up the audio processor to the configuration you require.
You should set the audio processor links before carrying out any of the tuning and
adjustment procedures.
Linka
Plug
PL201
PL202
Function
1–2
A
not connected
3–4b
B
microphone pre-amp output to compressor input
5–6
C
microphone pre-amp output to multiplexer input
7–8
D
pre-emphasis output to multiplexer input
9–10b
E
pre-emphasis output to limiter input
11–12
F
not connected
13–14
G
1–2b
H
compressor output to multiplexer input
3–4
I
compressor output to limiter input
5–6
J
compressor output to pre-emphasis input
7–8
K
9–10b
L
multiplexer output to pre-emphasis input
11–12
M
multiplexer output to limiter input
13–14
N
multiplexer output to compressor input
not connected
not connected
a The letters in this column refer to the letters printed on the PCB beside each pair of pins.
Note that the link names and pin numbers are different to earlier products. The lettering A
to N is however the same.
b Factory Setting
3.5.2
Typical Options
microphone pre-amp
compressed and
pre-emphasised
compressed and
flat response
PL201a
PL201
PL202
PL202
pre-emphasised
Bb
Eb
Hb
Lb
unprocessed
B
D
J
M
compressed and
pre-emphasised
C
E
J
N
B
F
H
M
line input
flat response
a The letters in this table refer to the letters printed on the PCB beside each pair of pins.
b Factory Setting
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Initial Tuning and Adjustment
M8SL2-00-002-812
3.6
C3.9
Synthesiser Alignment
1.
Ensure that the T854 has been programmed with the required frequencies using
PGM800Win software.
2.
Single Channel
Select a channel using PGM800Win.
Multichannel
Select the middle channel via PGM800Win.
3.
Connect a high impedance voltmeter to the long lead of L1 in the VCO (this measures the synthesiser loop voltage).
4.
Key the transmitter by earthing the Tx-Key line.
Single Channel
Tune VCO trimmer C6 for a synthesiser loop voltage of
10V.
Multichannel
Tune VCO trimmer C6 for a synthesiser loop voltage of
10V on the middle channel.
If there is no middle channel, tune C6 so that the channels
are symmetrically placed around a loop voltage of 10V.
All channels should lie within the upper and lower limits
of 16V and 3V respectively.
Do not attempt to program channels with a greater frequency separation than the specified switching range
(8MHz).
5.
Measure the exciter output frequency and adjust the TCXO (=IC700) trimmer if
required.
Caution:
This trimmer is susceptible to physical damage. Do not exert a downward force of more than 500g (1lb) when adjusting.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C3.10
T854 Initial Tuning and Adjustment
3.7
PA Alignment
M8SL2-00-002-812
1.
Check that the exciter is connected to the PA with the coaxial link.
2.
Connect an RF power meter to the PA output (use an appropriate attenuator as
necessary).
3.
Turn RV310 (power control) fully clockwise.
4.
Key the transmitter by earthing the Tx-Key line.
5.
Tune #CV475 until maximum power is obtained. Check that the power exceeds
30W.
6.
Adjust RV310 (power control) to 25W.
7.
Readjust #CV475 to reduce the supply current by up to 0.5A.
3.8
Thermal Shutdown
1.
Key the transmitter by earthing the Tx-Key line and set the output power to 25W
as described in Section 3.7.
2.
Short L481 to ground.
3.
Set RV330 (shutdown power level) for an output power of 5W.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
T854 Initial Tuning and Adjustment
3.9
Audio Processor and CTCSS
3.9.1
Two Point Modulation
C3.11
The T854 utilises two point modulation to obtain a wide audio bandwidth independent
of the synthesiser loop filter response. This is achieved by simultaneously frequency
modulating the VCO and phase modulating the synthesiser reference frequency. The
relative signal levels fed to the two modulators are quite critical and cause interaction
when setting up.
Both modulating signals require readjustment when the exciter is shifted in frequency
greater than the switching range (i.e. ∆F>±4MHz).
Note 1:
In this and following sections deviation settings are given first for wide
bandwidth sets, followed by settings in brackets for mid bandwidth sets ( )
and narrow bandwidth sets [ ].
Note 2:
The reference modulation and limiter adjustments are controlled by 256step electronic potentiometers (EPOTs), which are adjusted via the “Reference Modulation” and “Deviation” settings in PGM800Win. This allows the
two point modulation and deviation settings to be adjusted for each channel.
Note 3:
To optimise the modulation response across the switching range, repeat
steps 1 to 4 below for each channel that will be used (usually needed only
for data applications). In applications where the modulation response is less
critical (e.g. voice use only), carry out steps 1 to 4 below on the middle channel and use the “EPOT Fill” option1 in PGM800Win to copy the value to the
other channels.
Note 4:
If you are using an RF test set, turn the low pass filter off and set the high
pass filter to 15kHz before beginning this procedure.
3.9.2
Modulator Adjustment
1.
Inject an audio signal of 300Hz 1.5Vrms (+5dBm) into the CTCSS input (D-range 1
(PL100) pin 8).
Key the transmitter by earthing the Tx-Key line.
2.
Adjust the output from the audio generator to obtain ±3kHz (±2.4kHz) [±1.5kHz]
deviation at 300Hz.
3.
Change the input frequency to 100Hz and, using PGM800Win, adjust the value of
the “Reference Modulation” EPOT setting for the current channel to obtain ±3kHz
(±2.4kHz) [±1.5kHz] deviation (you can use either the mouse or up and down
arrow keys).
1. Use the “EDIT FILL” button on the tool bar or go to “Edit”, “Fill”, “Epot Settings” on
the menu bar.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C3.12
4.
T854 Initial Tuning and Adjustment
M8SL2-00-002-812
Change the input frequency back to 300Hz.
Repeat steps 2 and 3 above until the deviations achieved at the two input frequencies are within 0.2dB of each other. You will need to do this at least four times.
5.
Note:
Sweep the audio between 50 and 300Hz for peaks.
A peak between 50 and 300Hz will indicate a fault condition, i.e:
or
– incorrect set-up
– modulation circuitry fault.
The specification window is ±1dB relative to 150Hz from 67 to 260Hz.
3.9.3
CTCSS Encoder (If Used)
1.
Program a CTCSS tone on the default channel using PGM800Win.
2.
If you are using an RF test set, turn off the 300Hz high pass filter.
3.
Key the T854 with the front panel “Carrier” switch.
4.
Adjust RV805 (CTCSS level adjust) to give ±500Hz (±350Hz) [±250Hz] deviation.
5.
Set the maximum deviation as per Section 3.9.4.
3.9.4
Limiter Adjustment
Note:
If the T854 will be used over the whole 8MHz switching range, you must set
the deviation for each channel. However, if the module will be used on frequencies that cover only a 1MHz (or less) switching range, you can set the
deviation on the middle channel and use this value for all other channels
with the “EPOT Fill” option in PGM800Win.
1.
Set the links in the audio processor section as required (refer to Section 3.5).
2.
Inject 1kHz at –10dBm into the line input (D-range 1 (PL100) pins 1 and 4; and
pins 2 and 3 shorted; refer to Section 1.5 of Part G).
3.
Adjust RV210 (line sensitivity) fully clockwise and key the transmitter by earthing
the Tx-Key line. Using PGM800Win, adjust the value of the “Deviation” EPOT setting for the current channel to obtain a deviation limit of ±4.7kHz (±3.8kHz)
[±2.3kHz] (you can use either the mouse or up and down arrow keys).
4.
Sweep the audio frequency from 100Hz to 4kHz and ensure that the maximum
deviation does not exceed ±4.7kHz (±3.8kHz) [±2.3kHz]. Readjust “Deviation” if
necessary via PGM800Win.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
3.9.5
T854 Initial Tuning and Adjustment
C3.13
Line Level Without Compressor
This section assumes that the compressor is not used. If the compressor is required, refer
to Section 3.9.6.
1.
Remove the CTCSS signal (if used).
2.
Adjust the line sensitivity as follows:
• set the injected signal at the line input to the required line level (typically –10 to
–20dBm)
• adjust RV210 (line sensitivity) to provide ±3kHz (±2.4kHz) [±1.5kHz] deviation
3.
3.9.6
Reapply the CTCSS signal (if required).
Compressor
The compressor may be used on the line input only, the microphone input only, or on
both the line and microphone inputs. If the compressor is used, refer to one of the following sections as appropriate.
3.9.6.1
Compressor On Line Input Only
1.
Set RV210 (line sensitivity) fully clockwise and key the transmitter by earthing the
Tx-Key line.
2.
Reduce the line level to –50dBm at 1kHz and set RV220 (compression level) fully
clockwise.
3.
Check that ±3kHz deviation (±2.4kHz) [±1.5kHz] is still available.
4.
Slowly increase the audio input level until the demodulated waveform shows significant signs of clipping (approximately ±4.5kHz (±3.6kHz) [±2.3kHz] deviation).
5.
Adjust RV220 anticlockwise until the demodulated waveform is just clipping
(approximately ±4kHz (±3.2kHz) [±2kHz] deviation).
6.
Increase the input level to –10dBm and check that the test tone is still held just into
clipping. The input line level should be typically –10 to –20dBm.
3.9.6.2
Compressor On Microphone Input Only
1.
Key the transmitter by earthing the Tx-Key line and plug a microphone jack into
the front panel socket.
2.
Adjust RV220 (compression level) fully clockwise.
3.
Acoustically couple the microphone to a tone box (1kHz) and close the PTT
switch.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C3.14
T854 Initial Tuning and Adjustment
M8SL2-00-002-812
4.
Increase the audio level until the demodulated waveform shows significant signs
of clipping (approximately ±4.5kHz (±3.6kHz) [±2.3kHz] deviation).
5.
Adjust RV220 anticlockwise until the demodulated waveform is just clipping
(approximately ±4kHz (±3.2khz) [±2kHz] deviation).
6.
Increase the audio level by 10dB and verify that the test tone is held just into clipping.
7.
Whistle steadily into the microphone, checking that approximately ±4kHz
(±3.2khz) [±2kHz] deviation is produced. The modulated waveform should be
basically sinusoidal.
8.
Speak into the microphone, checking that the modulation peaks reach about
±5kHz (±4kHz) [±2.5kHz] deviation.
9.
As the line is to be used without compression, set RV210 (line sensitivity) as
described in Section 3.9.5.
3.9.6.3
Compressor On Both Line and Microphone Inputs
Set up as described in Section 3.9.6.1.
3.10
Power Alarms (if used)
When fitted to the T854 transmitter an alarm board monitors the transmitter output
power and generates a low forward-power and/or high reverse-power alarm as appropriate.
This is achieved by monitoring the output voltages of the transmitters forward and
reverse power directional coupler. A comparison between these voltage levels and user
defined reference voltages generates alarm conditions accordingly. The low forward
power output signal is also gated with the Tx-enable input to ensure that no alarm is
generated when the transmitter is not transmitting. The high reverse power alarm output is not gated. The alarm signal is output on the T854 Aux D-range.
There are two alarms boards currently available, the recently introduced and improved
T800-10-0520 Tx-Alarm/Channel Select board and the older T1500-52-0000, which it
replaces. The alarm outputs of both the these boards are compatible with the
T1511-20-0000 CCM module and the T803-02 Tone Remote and Alarm interface.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Initial Tuning and Adjustment
M8SL2-00-002-812
C3.15
The following table indicates the SL2 backplane configuration required.
SL2 Backplane
Alarm board
Notes
Link 9
Link 10
T1500-52-0000
(PCB 220-01426-04)
2–3
2–3
See Section 3.10.1 T1500-520000 Tx Alarm/Multi-channel
Kit
T800-10-0520 (plug-in alarm
board)
2–3
2–3
See Section 3.10.2 T800-10-0520
Tx-Alarm/Channel-Select Kit
No internal alarm board fitted
but FWD and REV power
sense voltages output directly
on T854 Aux D-range. Could
be used for an externally fitted
RF power indicator/alarm.
1–2
1–2
Cannot be used to trigger
T803-02 RF power alarms.
3.10.1
On the T854 for S/N 13098764
or earlier:
– remove R840 and R841
– fit R308 and R310 (both 10kΩ)
T1500-52-0000 Tx Alarm/Multi-channel Kit
When fitted, the T1500-52-0000 Tx alarm PCB monitors the transmitter output power
and generates a low forward and/or high reverse power alarm signal as appropriate.
Alarm outputs are compatible with the T1511-20-0000 CCM module. On-board LED
indication of alarms is also provided for trouble shooting and setup purposes.
Parts Supplied
The T1500-52-0000 should contain:
• T1500-52-0000 Alarm PCB and mounting screws.
• D-range and PCB interface.
3.10.1.1
Installation
To install this kit you will require the following tools:
• T1500-52-0000 Tx alarm/Multi-channel alarm kit
• Philips screwdriver
• Soldering iron
• Small sidecutters
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C3.16
T854 Initial Tuning and Adjustment
M8SL2-00-002-812
Auxiliary
D-range
Alarm
PCB
Figure 3.3 Example Transmitter (T856) Fitted with Alarm Kit
T800 connection pads
T1500-52-0000 PCB
connection pads
Rear D-range pin
number and PCB label
Wire
colour
+9V
P230
+9V
—
Red
GND
P259
GND
—
Black
Fwd Pwr TP
T826:
T836:
T854/T856:
Fwd Volts
—
Green
R302 (via end)
TP310
TP306
Rev Pwr TP
T826:
T836:
T854/T856:
Rev Volts
—
Orange
R301 (via end)
TP309
TP307
—
Fwd pwr alarm
Pin 13 – Fwd
Blue
—
Rev pwr alarm
Pin 14 – Rev
White
PTT
—
Yellow
Tx Enb
D240 pin 3
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
T854 Initial Tuning and Adjustment
C3.17
1.
Remove the top and bottom cover from the T854 transmitter.
2.
Remove the Aux D-range and replace with the supplied D-range socket.
3.
Connect the T1500-52-0000 wires to the D-range PCB, audio processor and exciter
compartments as shown in the table above.
4.
Fit cable clamps to all points where wires pass through the radio’s chassis.
5.
Fit the wire clamp to the forward and reverse voltage input wires at the point
were they cross over between compartments.
6.
Mount the T1500-52-0000 component side up on the chassis lugs provided in the
audio compartment, at the top (Carrier button) end.
Take care not to knock the T1500-52-0000 PCB while the covers are off. A
sharp knock on the SMD electro capacitors will damage the board.
Note:
7.
Fit a ribbon cable if multi-channel operation is required.
8.
Run up the board according to the test section below.
9.
Ensure that the cable clamps hold down all wires safely so that they will not be
pinched. Replace both covers.
3.10.1.2
T1500-52-0000 Testing/Alignment
Equipment required
• 50Ω power meter
• 3 or 6dB attenuator as needed.
Forward alarm
1.
Connect the power meter to the transmitter output.
2.
Key up the transmitter and set the output power to the desired low forward
power alarm threshold point.
3.
Adjust the “Fwd-alarm adjust” preset until the forward alarm LED just comes
ON.
4.
Reset the output power to the operational output level. Check the alarm output is
now OFF.
5.
Turn the transmitter OFF.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C3.18
T854 Initial Tuning and Adjustment
M8SL2-00-002-812
Reverse alarm
1.
Connect the power meter to the transmitter output.
2.
Key up the transmitter and set the output power level to the operational output
level.
3.
Replace the power meter with the appropriate valued open ended attenuator. This
should generate the desired return loss/reflected power for the desired high
reverse power alarm threshold point.
4.
Adjust the “Rev-alarm adjust” preset until the alarm LED just comes ON.
5.
Turn the transmitter OFF.
3.10.2
T800-10-0520 Tx-Alarm/Channel-Select Kit
When fitted to a T854 transmitter, the T800-10-0520 Tx-Alarm/Channel-Select plug-in
board provides the following features:
• The plug-in board monitors the transmitter’s output power, and generates a
low forward-power and/or high reverse-power alarm as appropriate.
• The plug-in board also includes channel select switches that enables the user to
manually set the operational channel of the T854.
The plug-in board provides the same alarm outputs as the T1500-52-0000:
Note:
• Forward Power Alarm:
Aux D-range pin 13
• Reverse Power Alarm:
Aux D-range pin 14
AUX-OUT-0 is disabled when the plug-in board is installed.
The Tx-Alarm function is achieved by comparing the output voltages of the transmitter’s directional coupler to user-defined reference levels.
The low forward-power alarm output is gated with the Tx-Enable input, to ensure that
no alarm is generated when the transmitter is not transmitting. The high reverse-power
alarm is not gated.
Note:
The plug-in board does not require additional wiring. It can be set up on the
bench. This is possible because the Tx-Enable line is accessed from inside the
T854, rather than from the backplane PCB (as on the T1500-52-0000).
Parts Supplied
T800-10-0520 Tx-Alarm/Channel-Select Kit should contain the following:
• T800-10-0520 plug-in board
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
3.10.2.1
T854 Initial Tuning and Adjustment
C3.19
Installation
To install this kit you will require a small flat-bladed screwdriver or similar.
Auxiliary
D-range
board
Microcontroller
cavity
See step 3A
SK805
Exciter
cavity
See
step 3B
1.
Remove the top cover from the T854 Transmitter.
2.
The auxiliary D-Range board is connected to the microcontroller cavity by a ribbon-cable. Remove the ribbon-cable.
3.
For T854 transmitters with a serial number of 13098764 or earlier:
These transmitters are not by default configured to work with the plug-in board.
The directional coupler voltages must be routed to SK805.
Note: This step disables AUX-OUT-1 and AUX-OUT-2.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C3.20
T854 Initial Tuning and Adjustment
M8SL2-00-002-812
Remove and fit the following resistors:
3A: Remove R841 and R840
from the microcontroller cavity.
3B: Fit %R308 and %R310 in
the exciter cavity. Use 10kΩ
SMD0805 (IPN: 036-15100-10).
4.
Double-sided tape is attached to the bottom side of the plug-in board. Remove the
protective film from the double-sided tape to expose its adhesive surface.
5.
The plug-in board is mounted in the T854 microcontroller cavity. Plug J1, the connector on the bottom side of the plug-in board, into SK805 on the T854 main
board.
Fit the plug-in
board into the
microcontroller
cavity.
6.
Firmly press down on the edges of the plug-in board so that the double sided tape
bonds to the top of the microcontroller.
7.
Connect the ribbon-cable between J2 on the plug-in board, and the auxiliary
D-Range board.
3.10.2.2
T800-10-0520 Testing/Alignment
Equipment required
• 50Ω power meter
• Suitable attenuator, e.g. 3dB.
Forward alarm
1.
Connect the power meter to the transmitter output.
2.
Key up the transmitter and set the output power to the desired low forwardpower alarm threshold-point.
3.
Adjust RV2, the forward-power alarm preset, until the forward alarm LED (DS2)
just turns ON.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
T854 Initial Tuning and Adjustment
C3.21
4.
Reset the power to the operational output level. Verify that the alarm output is
now OFF.
5.
Turn the transmitter OFF.
Reverse alarm
1.
Connect the power meter to the transmitter output.
2.
Key up the transmitter and set the output power level to the operational output
level.
3.
Unkey the transmitter.
4.
Replace the power meter with the appropriate valued open-ended attenuator.
This should generate the desired return loss/reflected power for the desired high
reverse-power alarm threshold-point.
5.
Key up the transmitter.
6.
Adjust RV1, the reverse-power alarm preset, until the reverse alarm LED (DS1)
just comes ON.
7.
Turn the transmitter OFF.
Channel Select Setup
In the default state of the plug-in board, no channel is selected (channel select disabled).
1.
Note:
2.
The desired channel can be selected by S1. Set the switches on S1 to the desired
channel number, in binary format.
The switch on position is a binary ‘0’ and the off position a binary ‘1’.
To disable channel select, set all switches back to the off position.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C3.22
T854 Initial Tuning and Adjustment
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Functional Testing
M8SL2-00-002-812
4
C4.1
T854 Functional Testing
Caution:
This equipment contains CMOS devices which are susceptible to damage from static charges. Refer to Section 1.2 in Part A for more information on anti-static procedures when handling these devices.
The following test procedures will confirm that the T854 has been tuned and adjusted
correctly and is fully operational.
Note 1:
In this and following sections deviation settings are given first for wide
bandwidth sets, followed by settings in brackets for mid bandwidth sets ( )
and narrow bandwidth sets [ ].
Note 2:
Unless otherwise specified, the term “PGM800Win” used in this and following sections refers to version 4.02 and later of the software.
Refer to Figure 4.4 for the location of the main tuning and adjustment controls, and to
Section 3.3 for the test equipment set-up. Refer also to Section 6 where the parts lists,
grid reference index and diagrams will provide detailed information on identifying and
locating components and test points on the main PCB. The parts list and diagrams for
the VCO PCB are in Part E.
The following topics are covered in this section.
Section
Title
Page
4.1
Current Consumption
4.3
4.2
Output Power
4.3
4.3
Output Frequency
4.3
4.4
Timers
4.4
4.5
Frequency Response
4.5
4.6
Audio Level Input Sensitivity
4.8
Figure
Title
Page
4.1
T854 Transmit Timers
4.4
4.2
T854 Pre-emphasis Response
4.6
4.3
T854 Limiting Response
4.7
4.4
T854 Main Tuning and Adjustment Controls
4.9
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C4.2
T854 Functional Testing
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
4.1
T854 Functional Testing
C4.3
Current Consumption
1.
Connect the T854 to a 13.8V power supply.
2.
Connect an RF power meter to the T854 output socket.
3.
Check that the current in the 13.8V power cable is less than 150mA.
4.
Key the T854 by earthing the Tx-Key line (the carrier “On” LED should light).
5.
Adjust RV310 (power control) to obtain 25W output power.
6.
Check that the current is less than 5.5A
4.2
Output Power
1.
Connect an RF power meter with suitable attenuation to the T854 output socket.
2.
Key the T854 by earthing the Tx-Key line.
3.
Check that the output power adjusts to ≥25W with RV310 (power control) turned
fully clockwise
4.3
Output Frequency
Connect the T854 output to a frequency counter via a 40dB attenuator pad. Measure the
output frequency and, if necessary, adjust the TCXO (=IC700) to trim to the nominal frequency (±100Hz).
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C4.4
T854 Functional Testing
4.4
Timers
M8SL2-00-002-812
The transmit tail timer, transmit timeout timer and transmit lockout timer can all
be set from PGM800Win. The fields for setting these are found on the system
information page. These three timers operate as follows (refer also to Figure 4.1):
Timer
Function
Adjustment
Transmit Tail
Sets the tail time during which the
transmitter stays keyed after the external key source has been removed.
0 to 5 seconds in
20ms steps
Transmit Timeout
Sets the maximum continuous transmission time. Once the timer has
timed out, the transmitter must be
keyed again, unless prevented by the
transmit lockout timer.
0 to 300 seconds in
20 second steps
Transmit Lockout
Sets the period of time that must
elapse after a timeout before the transmitter can re-transmit. Once the timer
has timed out, the transmitter can be
keyed again.
0 to 60 seconds in 10
second steps
Tx-Enable
On
Tx-Reg.
Tx-Enable
Tail Time
On
Tx-Reg.
Lockout Time
Timeout
Time
Figure 4.1 T854 Transmit Timers
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
4.5
T854 Functional Testing
C4.5
Frequency Response
If the T854 has been correctly adjusted, the pre-emphasis and limiting responses should
closely match those shown in Figure 4.2 and Figure 4.3 respectively.
Note:
The limits shown on these graphs should not be exceeded.
1.
If you are using an RF test set, turn off all filters.
2.
Measure the pre-emphasis response as follows:
Reduce the line level to give ±1kHz (±0.8kHz) [±0.5kHz] deviation at 1kHz.
Sweep the modulation frequency.
The response should closely match that shown in Figure 4.2.
3.
Measure the limiting response as follows:
Set the line level to give ±3kHz (±2.4kHz) [±1.5kHz] deviation at 1kHz.
Increase the line level 20dB and sweep the modulation frequency.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C4.6
T854 Functional Testing
M8SL2-00-002-812
The response should closely match that shown in Figure 4.3.
Wide Bandwidth
Peak + max. dev. = +1.0kHz @ 1000Hz
Peak - max. dev. = -1.0kHz @ 1000Hz
+10
+8
+6
Modulation Level (dB ref. to dev. @ 1kHz)
+4
+2
+0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
100
200
300
500
1k
2k
3k
5k
10k
Frequency (Hz)
Mid Bandwidth
The mid bandwidth graph is the same shape as the wide bandwidth graph. The deviation figures are as follows:
peak + max. deviation = +0.8kHz
peak – max. deviation = –0.8kHz.
Narrow Bandwidth
Peak + max. dev. = +0.5kHz @ 1000Hz
Peak - max. dev. = -0.5kHz @ 1000Hz
+10
+8
+6
Modulation Level (dB ref. to dev. @ 1kHz)
+4
+2
+0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
100
200
300
500
1k
2k
3k
5k
10k
Frequency (Hz)
Figure 4.2 T854 Pre-emphasis Response
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Functional Testing
M8SL2-00-002-812
C4.7
Wide Bandwidth
Peak + max. dev. = +4.9kHz @ 1500Hz
Peak - max. dev. = -4.4kHz @ 2500Hz
Above limiting (steady-state)
+10
+8
+6
Modulation Level (dB ref. to max. dev.)
+4
+2
+0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
10
20
30
50
100
200
300
500
1k
2k
3k
5k
10k
Frequency (Hz)
Mid Bandwidth
The mid bandwidth graph is the same shape as the wide bandwidth graph. The deviation figures are as follows:
peak + max. deviation = +4kHz
peak – max. deviation = –4kHz.
Narrow Bandwidth
Peak + max. dev. = +2.4kHz @ 2000Hz
Peak - max. dev. = -2.5kHz @ 2000Hz
Above limiting (steady-state)
+10
+8
+6
Modulation Level (dB ref. to max. dev.)
+4
+2
+0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
10
20
30
50
100
200
300
500
1k
Frequency (Hz)
Figure 4.3 T854 Limiting Response
© Copyright Tait Electronics Limited August 2004. All rights reserved.
2k
3k
5k
10k
C4.8
T854 Functional Testing
4.6
M8SL2-00-002-812
Audio Level Input Sensitivity
1.
Adjust RV210 (line sensitivity) fully clockwise.
2.
Check that the input sensitivities are better than those specified below:
Line Input
600Ω, ±3kHz (±2.4kHz) [±1.5kHz] deviation at 1kHz:
Microphone Input
CTCSS Input
Note:
with compressor
–50dBm
without compressor
–30dBm
600Ω, ±3kHz (±2.4kHz) [±1.5kHz] deviation at 1kHz:
with compressor
–75dBm
without compressor
–55dBm
1kHz deviation at 150Hz
500mVrms
A degraded signal to noise ratio can be expected with the compressor
selected. The extent of the degradation is dependent on the audio input
level.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Functional Testing
M8SL2-00-002-812
C4.9
RV805
CTCSS
level adjust
#CV475
SK805
L1
=IC700
TCXO
R481
L481
C6
RV330
shutdown
power level
RV320
shutdown
temperature
RV310
power control
SW230
carrier
RV210
line sensitivity
RV220
compression level
PL201
Figure 4.4 T854 Main Tuning and Adjustment Controls
© Copyright Tait Electronics Limited August 2004. All rights reserved.
PL202
C4.10
T854 Functional Testing
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Fault Finding
M8SL2-00-002-812
5
C5.1
T854 Fault Finding
Caution:
This equipment contains CMOS devices which are susceptible to damage from static charges. Refer to Section 1.2 in Part A for more information on anti-static procedures when handling these devices.
The following test procedures and fault finding flow charts may be used to help locate a
hardware problem, however they are by no means a complete fault finding procedure.
If you still cannot trace the fault after progressing through them in a logical manner,
contact your nearest Tait Dealer or Customer Service Organisation. If necessary, you can
get additional technical help from Technical Support, Tait Electronics Ltd, Christchurch,
New Zealand (full contact details are on page 2).
Note 1:
In this and following sections deviation settings are given first for wide
bandwidth sets, followed by settings in brackets for mid bandwidth sets ( )
and narrow bandwidth sets [ ].
Note 2:
Unless otherwise specified, the term “PGM800Win” used in this and following sections refers to version 4.02 and later of the software.
Refer to Section 6 where the parts lists, grid reference index and diagrams will provide
detailed information on identifying and locating components and test points on the
main PCB. The parts list and diagrams for the VCO PCB are in Part E.
The following topics are covered in this section
Section
Title
Page
5.1
Visual Checks
5.3
5.2
Component Checks
5.3
5.3
Front Panel LED Indicator
5.3
5.4
DC Checks
5.4
5.4.1
Power Rails
5.4
5.4.2
VCO Locking
5.4
RF Checks
5.5
5.5.1
T854 Drive Power
5.5
5.5.2
T854 PA Output Power
5.5
5.5.3
Audio And Modulation
5.5
PGM800Win Generated Errors
5.6
5.5
5.6
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C5.2
T854 Fault Finding
M8SL2-00-002-812
Section
5.7
Title
Page
Fault Finding Charts
5.7
5.7.1
5.7.1.1
5.7.1.2
5.7.1.3
Microcontroller
Basic Checks
Serial Communications
CTCSS Encode
5.7
5.7
5.8
5.9
5.7.2
Regulator
5.10
5.7.3
Synthesiser
5.11
5.7.4
T854 Drive Amplifier
5.14
5.7.5
T854 PA and Power Control
5.15
5.7.7
Audio Processor
5.16
To Replace The T854 PA Transistors (Q410 and Q420)
5.17
5.8
Figure
Title
Page
5.1
RF Diode Probe Circuit
5.5
5.2
Typical Transistor/Capacitor Spacing (Not To Scale)
5.17
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Fault Finding
M8SL2-00-002-812
5.1
C5.3
Visual Checks
Remove the top cover from the T854 and inspect the PCB for damaged or broken components, paying particular attention to the surface mounted devices (SMDs).
Check for defective solder joints. If repair or replacement is considered necessary, refer
to Section 3 of Part A.
5.2
Component Checks
If you suspect a transistor is faulty, you can assess its performance by measuring the forward and reverse resistance of the junctions. Unless the device is completely desoldered, first make sure that the transistor is not shunted by some circuit resistance. Use a
good quality EVM (e.g. Fluke 75) for taking the measurements (or a 20kΩ/V or better
multimeter, using only the medium or low resistance ranges).
The collector current drawn by multi-junction transistors is a further guide to their performance.
If an IC is suspect, the most reliable check is to measure the DC operating voltages. Due
to the catastrophic nature of most IC failures, the pin voltages will usually be markedly
different from the recommended values in the presence of a fault. The recommended
values can be obtained from either the circuit diagram or the component data catalogue.
5.3
Front Panel LED Indicator
The green “Supply” LED on the T854 front panel will flash according to the conditions
described in the following table:
Flash Rate
Condition
fast
( 1/3 s on/ 1/3 s off
approx.)
T854 is linked with PGM800Win
unequal
( 1/3 s on/1s off
approx.)
microcontroller has detected an
internal communications error –
refer to Section 5.7.1
Where two or more conditions occur at the same time, the precedence is in the order
shown above (i.e. T854 linked has the highest priority, followed by internal error).
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C5.4
T854 Fault Finding
5.4
DC Checks
5.4.1
Power Rails
M8SL2-00-002-812
Refer to the test points and options diagrams in Section 6 for test point locations, and to
the regulator fault finding chart (Section 5.7.2) for fault diagnosis.
Check the 13.8V (TP601) and 9V (TP602) supplies at their test points in the regulator compartment with a DMM.
Check the 5V (TP604) and 20V (TP603) rails at their respective test points in the
regulator compartment.
Check that Tx-Reg. (TP305 in the exciter compartment) comes up to 8.8V when the
exciter is keyed.
Check the +5V digital regulator output (TP607 in the regulator compartment).
Check the 9V supply (IC370 pin 1) with a DMM.
Check for short circuits.
5.4.2
VCO Locking
Key the exciter.
Using a DMM, monitor the VCO control voltage between between L1 and PL14
pin1 on the VCO PCB.
If the synthesiser is locked and the VCO aligned, the voltage at this point should
be between 3 and 16V.
If the VCO is not locked, refer to the synthesiser fault finding chart (Section 5.7.3).
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Fault Finding
M8SL2-00-002-812
5.5
C5.5
RF Checks
In-circuit RF levels may be measured with an RF probe on which the earth lead has been
shortened to a minimum (i.e. 13mm). Refer to the circuit diagrams for typical levels.
Figure 5.1 shows a suitable RF probe circuit.
1n
Probe
Coax
10k
DC to DVM or
Oscilloscope
1N6263
1n
100k
Earthing Clip
This unit is not suitable for use on high power RF circuits.
Figure 5.1 RF Diode Probe Circuit
5.5.1
T854 Drive Power
Refer to the drive amplifier fault finding chart (Section 5.7.4).
Ensure that the VCO locks (refer to Section 5.4.2).
Connect the drive output to a power meter and key the transmitter.
Check that the exciter output power (SK310) is >1.5W.
Note:
If the synthesiser is out of lock, the lock detector (synthesiser IC740 and
comparator IC750) will prevent the RF signal from reaching the PA by
switching the supply to the exciter amplifier (Q336, Q337).
5.5.2
T854 PA Output Power
Reconnect the drive output to the PA input.
Connect the PA to a power meter and key the transmitter.
Check that the output power is >30W with RV310 (power control) adjusted fully
clockwise.
5.5.3
Audio And Modulation
Refer to the audio processor fault finding chart (Section 5.7.6).
Set up the audio processor as described in Section 3.9.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C5.6
T854 Fault Finding
M8SL2-00-002-812
Check that the demodulated RF output has the frequency response referred to in
Section 4.5 with at least ±5kHz (±4kHz) [±2.5kHz] deviation available at 1kHz
modulating frequency.
If the above result is not achieved, either the dual point modulation is incorrectly
adjusted or a fault condition exists.
5.6
PGM800Win Generated Errors
The following errors are those most likely to occur using PGM800Win. Refer to the
PGM800Win software user’s manual for a complete list of error messages.
Channel Switch Set
The programmed default channel change was not accepted by the base station because a
channel is selected externally. Try turning the external channel switch off to change the
default channel in PGM800Win.
Synth Out Of Lock
The synthesiser received incorrect data, or the data was corrupted. Enter a frequency
within the VCO switching range, or tune the VCO.
Internal Error
Data could not be read from the base station due to an internal error. Check for shorts or
open circuits on the SDA, SCK, SYNTH and EPOT lines. The SDA, SCK and SYNTH are
normally high, and the EPOT is normally low.
Write/Read To An Unlinked Module
The link to the module does not exist. Undefined error.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Fault Finding
M8SL2-00-002-812
C5.7
5.7
Fault Finding Charts
Note:
The standard test point designations used in this section are as follows:
TP601
TP602
TP603
TP604
13.8V
9V
20V
5V
5.7.1
Microcontroller (IC810)
5.7.1.1
Basic Checks
Is the 12.8MHz clock
present on IC810 pin 21
(microcontroller)?
N
Check IC710.
Y
Replace
IC810.
N
Is pin 30
pulsing?
Y
Replace
IC650.
Pulsing
Check the
state of
pin 10.
High or open circuit
Low
Check state of
pins 36 to 43.
Use a DSO* to check
operation of IC650
(i.e. active high
pulse at power up).
*digital storage oscilloscope
Pulsing
Static high/low
Replace IC810.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Check state
of pin 35.
High
Low/floating
Correct the fault causing
pin 35 to be low/floating.
Replace
IC810.
C5.8
T854 Fault Finding
5.7.1.2
Serial Communication
Disconnect the
programming lead.
Is IC810 pin 11 high?
(microcontroller)
M8SL2-00-002-812
Low/floating
N
Check pin state.
Check the transistor
interface circuitry.
Noise
on pin
Y
Check the SERIAL-COM
and AUDIO-1/2 links.
Connect the programming
lead and use PGM800Win
to read the rack/radio.
Check I/O pad P810
with a DSO*.
Does it swing from
0 to 5V?
*digital storage
oscilloscope
Check the transistor
interface circuitry
and/or replace the
programming lead.
N
Y
Use PGM800Win
to send a POLL
command to the
radio.
Check IC810 pin 13
with a DSO. Is there
a response from IC810 after
a poll command is sent?
N
Replace
IC810.
Y
Check the transistor
interface circuitry
and/or replace the
programming lead.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Fault Finding
M8SL2-00-002-812
5.7.1.3
CTCSS Encode
Use PGM800Win to
select a channel
with a CTCSS tone
programmed.
Cannot select a channel
Check serial communications.
(See separate flow chart).
Y
Check IC810 pins 24, 25
& 26 (microcontroller).
Are there 5V square waves at
the CTCSS frequency?
No square waves or
uneven mark/space ratio
Replace IC810.
Y
Check IC830 pins 1, 7 & 14.
Are there 9V square waves at
the CTCSS frequency?
No square waves or
uneven mark/space ratio
Check IC830 circuitry
and repair/replace.
Y
Check IC830 pin 8.
Is there a sine wave
at the CTCSS frequency?
No tone
Check RV805.
Distorted tone
Check the filter circuit for bias
problems and/or short circuits.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C5.9
C5.10
T854 Fault Finding
5.7.2
Regulator
M8SL2-00-002-812
Check for
overheating
components &
short circuits.
N
13.8V present on
IC630 pin 3?
Check continuity
from pin 9 of
D-range 1.
Y
N
5.3V present on
IC630 pin 1?
Replace IC630.
Y
9.0V present
on TP602?
N
Check Q630,
Q620 & IC640.
Y
20V present
on TP603?
N
Check Q660 is
switching at
approx. 150kHz.
Y
N
+5V present on
IC610 pin 1?
Check R615.
Replace IC610.
Y
Key Tx.
Y
8.8V present
on Tx reg. TP305?
Regulators OK.
N
Y
0V present
on Q860 collector?
Replace Q610.
N
Y
0.6V present on
Q860 base?
Check Q860 and
associated circuitry.
N
Regulators OK.
Check microcontroller
section.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Fault Finding
M8SL2-00-002-812
5.7.3
C5.11
Synthesiser
Refer to the synthesiser circuit diagram (sheet 7) in Section 6 and the VCO circuit diagram in Part E.
A
B
No VCO RF output.
VCO out of lock.
N
9V present at
VCO Q4/Q5?
Check Tx reg.,
Q610 & 9V reg.
+5V present at
IC700, IC710,
IC740, IC720
& IC730?
Y
Check biasing
resistors, Q4 & Q5.
20V present
on IC750 pin 8?
Y
8.3V present
at VCO?
N
9V present on
Q795 divider buffer?
Y
20V inverter
supply faulty.
N
Check 9V supply.
Y
Check biasing
resistors, Q1,
Q2 & Q3.
N
N
Y
Check Q5 C
multiplier
(synth).
DC V present at
VCO, Q1, Q2 & Q3?
Check 5V reg. &
supply resistor
to each IC.
Y
N
DC V present
at Q4 & Q5?
N
DC V present
on Q795 emitter?
Y
N
Check biasing
resistors & Q795.
Y
Capacitors OK?
Check for cracks,
shorts, etc.
N
Replace
if faulty.
N
Y
Does VCO trimmer
adjust for stable
control line
between 3 & 16V?
Y
Replace VCO.
N
VCO freq. correct?
Y
Check VCO tuning
caps & trimmer.
N
VCO trimmer
freq. range OK?
N
Does VCO trimmer
adjust for required
frequency range
between 3 & 16V?
Y
Y
Check #C1, #C7, #C8,
C6 & D1-D2 in VCO.
N
Is 8MHz VCO range
achieved between
3 & 16V?
Y
VCO OK.
Continued on the next page
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Synthesiser OK.
Recheck
programming
via PGM800Win.
C5.12
T854 Fault Finding
M8SL2-00-002-812
B
Continued from previous page
Check microcontroller
section (IC810).
Replace synthesiser
(IC740).
Y
Check phase detector output
pins (IC740 pins 3 & 4).
Are there very narrow pulses
(~50ns) at the reference frequency?
(i.e. 5kHz : 200µs period
6.25kHz : 160µs period)
*See Note below.
N
Check programming.
Check serial bus
when programming
i.e. clock/data/enable
activity (IC740 pins
18, 19 & 17).
N
Programming and
serial bus OK?
Is reference
clock present
at IC740 pin 20
(200kHz >4.5Vpp)?
Y
N
Y
Is the charge pump bias
voltage at the base of
Q760 & Q780 between
3.5 and 5V? (5V when locked)
N
Check Q760, Q780,
R766 & C765.
Check phase
modulator sections:
IC720, Q710, Q720,
D710, Q730, Q740,
D720.
Is reference
clock present
at IC730 pin 12
(200kHz >4.5Vpp)?
Y
N
Y
Is the voltage on C762,
R760, and R758 9V ±0.2V?
N
Check R762 & C762.
Check divider
IC730.
Y
Is reference
clock present
at IC730 pin 1
(12.8MHz >4.0Vpp)?
Y
N
Is the charge pump voltage
on Q790 gate between
3 and 8.5V? (6.5V ±0.2V locked)
N
Check charge pump components
(Q775 & Q780) and Q790.
Check TCXO (IC700)
and buffers (IC710).
Y
N
Is the loop filter reference
voltage at C772 (+) 6.5V ±0.2V?
Check C772, R774, R772,
C770, R763 & Q790.
Y
Check loop filter components
R775, C774, C776, R510,
C505, IC750. Is the supply
to IC750 +20V +4, -2V?
N
Check regulator circuitry.
Y
Check the signal path from
the VCO to synthesiser.
Measure the frequency from
the VCO at IC740 pin 11 using
a frequency counter.
No signal
Check VCO.
Signal
Is the level >-10dBm?
Does the frequency adjust
as the VCO trimmer is
adjusted (out of lock)?
Y
Replace synthesiser
(IC740).
N
Check divider buffer
circuit (Q795) and bias
voltages on Q795 emitter
(1.3V ±0.2V).
*Note:
When locked, both of these
are very narrow (~50ns).
If unlocked, one will be
very narrow (~50ns),
and the other wide (>15µs).
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Fault Finding
M8SL2-00-002-812
C
Noisy synth;
poor residual FM.
VCO phase locked?
3-16V present on
control line?
N
Go to B.
Y
N
Correct DC V
present on Q1 VCO?
Check inductors,
biasing resistors
& Q1.
Y
Loop filter &
components around
op. amp. (IC750) OK?
N
Replace if faulty.
Y
Isolate audio
modulation on VCO;
still noisy?
N
Trace audio fault.
Y
N
Change trimmer;
still noisy?
Y
Change Q1;
still noisy?
N
Y
Change TCXO;
still noisy?
N
Y
Change varactors;
still noisy?
N
Y
Replace VCO
assembly.
Y
Synthesiser OK.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C5.13
C5.14
T854 Fault Finding
5.7.4
T854 Drive Amplifier
M8SL2-00-002-812
Key exciter
& lock
synthesiser.
Key exciter
& lock
synthesiser.
3.3V on Q337
collector?
13.6V on Q336
collector?
N
N
12.9V on Q334
collector?
Y
11.5V on
IC350 pin 7?
N
Y
Y
Check continuity
of power rails
& DC paths to
Q333 & Q332.
Check
Q334 Q3814a
paths between
Ic350 Q334
Check VCO.
Check
regulators.
N
>2V RF at
VCO output?
N
Y
Y
>1V RF
at R381?
Check 9V &
13.8V supplies.
N
Check attenuator
pad #R517, #R518,
#R519.
Y
>0.5V RF at
Q337 base?
Check C355, C358,
C360, Q350, D340,
D380, D360, L320.
N
Check temp.
shutdown
circuit.
N
Check TP305
>+8V.
Y
N
Check TP320
<0.6V.
Y
Y
>5V RF at
C361
Check lock det.
path back to
synth. IC740,
IC750, Q325.
And Q326.
N
Check Q350.
Check Q330,
Q325 Q326
Y
>2.5W at
Sk310?
Y
N
Check Q336.
& signal path.
From collector
To Sk310
Exciter OK
Replace coaxial
Link and go to
PA flow chart
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Fault Finding
M8SL2-00-002-812
5.7.5
C5.15
T854 PA and Power Control
Normal operating conditions:
Set RV320
(power adjust)
fully clockwise;
synth. locked;
key Tx.
Forward power
Reverse power
IC350 pin 6
IC350 pin 5
IC350 pin 7
=
=
=
=
=
4.7V approx.
0.7V approx.
2.02V
2V
8.63V
Check Q410,
Q420 & circuitry,
LP filter.
Y
Tx delivering
full power
(>30W)?
N
10.8V
at L310?
Y
Check drive at
SK310 >1.5W.
N
Y
Check +13.8V at
Q410 & Q420.
N
N
Refer to Drive Amp.
Fault Finding Chart.
<2V on
IC350 pin 6?
Y
Y
Check supply
circuitry.
Check IC330,
Q310, Q315
& circuitry,
+13.8V supply.
N
Check lock det. circuit;
TP305 should be >8V.
Check temp. shutdown
circuit (IC350);
TP320 should be <0.6V.
Check Q320, RV330.
Turn RV310 ccw.
Check power
drops to zero
slowly in a
controlled manner.
N
Does variation
of RV310
cause either
full power
or no power?
Y
Check for break
in power sense
circuitry; directional
coupler D420,
D440 & circuitry.
Y
Set RV310 so that
output power = 25W;
check L310 approx. 7.5V.
Momentarily remove
Tx load. Voltage at
L310 decreases to
approx. 5V?
Y
Power control
circuitry OK.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Note:
c/w = clockwise
cc/w = counterclockwise
or anticlockwise
C5.16
T854 Fault Finding
5.7.6
Audio Processor
M8SL2-00-002-812
Key exciter &
lock synthesiser.
Connect 1kHz audio
to external CTCSS input.
N
Does exciter
modulate?
Y
Audio output at
IC260 pin 8?
Y
Check audio path to
VCO control line.
N
Check alignment
of modulators.
Y
Audio output at
IC260 pin 1?
Check buffer IC260
pins 8, 9 & 10.
N
Y
Demodulated audio
frequency response
flat between 50 & 300Hz?
Y
Audio output at
IC260 pin 7?
Check low pass
filter stage IC260
pins 1, 2 & 3.
N
N
Check low
pass filter
stage IC260
pins 1, 2 & 3.
Check stage IC260
pins 5, 6 & 7.
Audio frequency
response IC260
pin 1 flat 300Hz
to 2kHz?
N
Y
Audio frequency
response IC210
pin 8 6dB/octave
slope?
N
Check integrator
IC210 pins 8, 9, & 10.
Y
Audio superimposed
on 200kHz signal
IC720 pins 9 & 3 (synth)?
N
Check audio path
between integrator
& phase modulator.
Y
200kHz clipped
triangle wave at
IC720 pins 8 & 4?
N
Check IC720, Q710, Q720,
Q730, Q740, D710, D720,
C727, C729, C724 & C725
Y
Check loop filter
(IC750, pins 5, 6 & 7)
& associated
components.
Audio signal at
IC210 pin 14?
Y
Check audio path between
limiter IC210 pin 14 &
summing amp. IC260 pin 7.
N
Select standard
audio configuration.
Audio signal at
IC230 pin 1?
Y
Check IC210
pins 12, 13 & 14.
N
Demodulated
audio frequency
response as per
Section 4.5?
Audio signal at
IC230 pin 14?
Connect audio
to line input;
key exciter.
Y
Does exciter
modulate?
Check IC230 pins 1, 2 & 3 or
audio path between preemphasis network & limiter.
Y
Check IC230 pins 12, 13 & 14
or audio path between multiplexer
& pre-emphasis network.
N
N
Check pre-emphasis
network IC230 pins 12,
13 & 14 &/or low pass
filter IC260 pins 1, 2 & 3.
Y
N
Audio signal at
IC240 pin 4?
N
IC240 pin 6
at 9V?
Y
Y
Check IC240 or audio
path between line transformer & multiplexer.
N
Audio processor
OK.
Check Q260 is not faulty or
being turned on inadvertently.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Fault Finding
M8SL2-00-002-812
5.8
C5.17
To Replace The T854 PA Transistors
(Q410 and Q420)
Caution:
Failure to comply with the following procedure can result in failure of
the device due to poor heatsinking, or worse, can endanger the health
of the assembler if the beryllium oxide die carrier is smashed during
assembly.
Caution:
As the location of certain components in the PA is critical to performance, it is important that any components removed or disturbed are
refitted in exactly the same position.
Before attempting to remove a transistor, measure the distance
between the capacitors and transistor body to the nearest 0.5mm (measurement “A” in Figure 5.2) so that the capacitors can be replaced in
exactly the same position. These measurements are shown in Figure
5.2 for the 6LFL package, however the same procedure applies for the
SOE (stud) package.
Caution:
Do not apply too much heat or pressure to the PCB pads and tracks as
you may damage them or lift them from the PCB, causing permanent
damage to the transmitter.
base
collector
measurement A
Figure 5.2 Typical Transistor/Capacitor Spacing (Not To Scale)
Desolder and remove the components from around the transistor.
Q420 Only:
Desolder and remove the two solder tags.
Desolder the transistor tabs by heating with a soldering iron and lifting away
from the PCB with a screwdriver or thin stainless steel spike, then remove the
device.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C5.18
T854 Fault Finding
Q410 Only:
M8SL2-00-002-812
Unscrew the transistor stud nut and remove the device.
Remove any excess solder from the PCB pads with solder wick.
Trim the tabs of the replacement transistor so that the device sits neatly on the
PCB pads provided.
Lightly tin the underside of the transistor tabs. Remove any excess solder to leave
a thin, even layer on the tabs.
Apply a small amount of heatsink compound (Dow-Corning 340 or equivalent) to
the transistor mounting surface. Sufficient compound should be used to ensure an
even film over the entire mounting surface.
Place the transistor on the PCB in the correct orientation and ensure the tabs are
flush to the surface.
Q410 Only:
Caution:
Lightly solder one tab to the PCB, then torque down the retaining nut to the correct torque (0.7Nm/6in.lbf.).
Do not solder all the tabs before torquing down otherwise the device
may be broken.
Q420 Only:
Refit the solder tags.
Solder all transistor tabs to the PCB.
Replace each component in exactly the same position as noted previously.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 PCB Information
M8SL2-00-002-812
6
C6.1.1
T854 PCB Information
Caution:
This equipment contains CMOS devices which are susceptible to damage from
static charges. Refer to Section 1.2 in Part A for more information on anti-static
procedures when handling these devices.
This section provides the following information on the T854 transmitter:
• parts lists
• grid reference indexes
• mechanical assembly drawings
• PCB layouts
• test points and options connections drawings
• circuit diagrams.
Section
Title
6.1
Introduction
6.2
T854 Transmitter PCB
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN
Page
6.1.3
220-01397-01
6.2.1
C6.1.2
T854 PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 PCB Information
M8SL2-00-002-812
6.1
C6.1.3
Introduction
Product Type Identification
You can identify the transmitter type by checking the product code printed on a label on the rear of
the chassis (product codes are explained in Section 1 of the front matter in this manual, and Figure
1.1 in Part A shows typical labels). You can further verify the product type by checking the placement of an SMD resistor in the table that is screen printed onto the top side of the PCB, similar to the
example drawn below. In this example, the resistor indicates that the product was built as a
T854-10-XXXX.
854-30
854-10
854-20
854-
854-13
854-23
854-15
854-25
PRODUCT TYPE
Note:
PRODUCT TYPE
854-35
The only function of this resistor is to indicate the product type. It has no effect on the
circuitry or operation of the transmitter.
PCB Identification
All PCBs are identified by a unique 10 digit “internal part number” (IPN), e.g. 220-01390-02, which
is screen printed onto the PCB (usually on the top side), as shown in the example below:
The last 2 digits of this number define the issue status, which starts at 00 and increments through 01,
02, 03, etc. as the PCB is updated. Some issue PCBs never reach full production status and are therefore not included in this manual. A letter following the 10 digit IPN has no relevance in identifying
the PCB for service purposes.
Note:
It is important that you identify which issue PCB you are working on so that you can
refer to the appropriate set of PCB information.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C6.1.4
T854 PCB Information
M8SL2-00-002-812
Parts Lists
The 10 digit numbers (000-00000-00) in this Parts List are “internal part numbers” (IPNs). We can
process your spare parts orders more efficiently and accurately if you quote the IPN and provide a
brief description of the part.
The components listed in this parts list are divided into two main types: those with a circuit reference (e.g. C2, D1, R121, etc.) and those without (miscellaneous and mechanical).
Those with a circuit reference are grouped in alphabetical order and then in numerical order within
each group. Each component entry comprises three or four columns, as shown below:
circuit reference lists components
in alphanumeric
order
variant column indicates that this is
a variant component
which is fitted only to
the product type listed
description gives a brief description
of the component
Internal Part Number order the component
by this number
The miscellaneous and mechanical section lists the variant and common parts in IPN order.
Variant Components
A variant component is one that has the same circuit reference but different value or specification in
different product types. Where two products share the same PCB, the term “variant” is also used to
describe components unplaced in one product. Variant components have a character prefix, such as
“&”, “=” or “#”, before the circuit reference (e.g. &R100).
The table below explains the variant prefixes used in T800 SL2 products:
If the variant prefix is. . .
the component will. . .
&
change according to channel spacing
=
change according to frequency stability
#
change according to frequency range
%
change or be placed/unplaced for special applications
*
be unplaced in one product
(where two products share the same PCB)
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 PCB Information
M8SL2-00-002-812
C6.1.5
Grid Reference Index
This section contains a component grid reference index to help you find components and labelled
pads on the PCB layouts and circuit diagrams. This index lists the components and pads in alphanumeric order, along with the appropriate alphanumeric grid references, as shown below:
PCB layout
reference
circuit diagram
reference
components listed
in alphanumeric order
component location
on the sheet
sheet number
component location
on the layer
layer number 1 = top side layer
2 = bottom side layer
Using CAD Circuit Diagrams
Reading a CAD circuit diagram is similar to reading a road map, in that both have an alphanumeric
border. The circuit diagrams in this manual use letters to represent the horizontal axis, and numbers
for the vertical axis. These circuit diagram “grid references” are useful in following a circuit that is
spread over two or more sheets.
When a line representing part of the circuitry is discontinued, a reference will be given at the end of
the line to indicate where the rest of the circuitry is located, as shown below. The first digit refers to
the sheet number and the last two characters refer to the location on that sheet of the continuation of
the circuit (e.g. 1R3).
DISCRIMINATOR
1R3
2R9
2R9
8A2
C371
%R338
100
10U
R339
100K
C369
100P
these grid references
show where the circuit
is continued
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C301
4N7
R303
L310
33U
D
4R4
G S
IF-SIG
12
C6.1.6
T854 PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 PCB Information
M8SL2-00-002-812
6.2
C6.2.1
T854 Transmitter PCB
This section contains the following information.
IPN
220-01397-01
Section
Page
Parts List
6.2.3
Mechanical and Miscellaneous Parts
6.2.10
Mechanical Assembly
6.2.11
Grid Reference Index
6.2.13
PCB Layout – Top Side
6.2.17
PCB Layout – Bottom Side
6.2.18
Test Points and Options Connections – Top Side
6.2.19
Test Points and Options Connections – Bottom Side
6.2.20
Transmitter Overview Diagram
6.2.21
Audio Processor Circuit Diagram
6.2.22
Exciter Circuit Diagram
6.2.23
PA Circuit Diagram
6.2.24
VCO Section Circuit Diagram
6.2.25
Regulators Circuit Diagram
6.2.26
Synthesiser Circuit Diagram
6.2.27
Microcontroller Circuit Diagram
6.2.28
Harmonic Filter Circuit Diagram
6.2.29
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C6.2.2
T854 PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 PCB Information
M8SL2-00-002-812
C6.2.3
T854 Parts List (IPN 220-01686-03)
How To Use This Parts List
The components listed in this parts list are grouped in alphabetical order and then in numerical order within each group. Each component entry comprises three or four columns: the circuit reference, variant (if applicable), IPN and description. A number in the variant
column indicates that this is a variant component which is fitted only to the product type listed.
This parts list is correct at the time of publishing, but is subject to change without notification. An up to date parts list can be obtained
from your local Customer Service Organisation
Ref
C100
C101
C102
C103
C201
C202
%C203A
%C203B
C207
C209
C210
C211
C213
C215
C217
C219
C221
C223
C225
C227
C229
C230
C232
C233
C235
C237
C239
C240
C241
C242
C243
C245
C247
C249
C251
C253
C255
C257
C259
C260
C261
C263
%C265
C267
&C269
&C269
&C269
&C269
&C269
&C269
&C269
&C269
&C269
&C269
&C269
&C271
&C271
&C271
&C271
&C271
&C271
&C271
&C271
&C271
&C271
&C271
C273
C275
C277
C279
C281
C283
C285
C287
&C289
&C289
&C289
&C289
Var
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
IPN
Description
Ref
014-08220-01
015-26100-08
015-26100-08
015-26100-08
015-23150-01
015-26100-08
015-23150-01
016-08470-01
015-24100-08
014-07100-02
016-07470-06
015-23150-01
015-26100-08
014-08100-00
015-24100-08
015-23150-01
015-23150-01
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-22470-01
015-25470-08
015-26100-08
014-07470-01
016-09100-05
016-07470-06
015-24470-08
015-21150-01
015-21150-01
015-21470-01
015-21470-01
015-21150-01
015-21150-01
015-21470-01
015-21470-01
015-21150-01
015-21470-01
015-21470-01
015-22470-01
015-22470-01
015-22470-01
015-22560-01
015-22470-01
015-22470-01
015-22470-01
015-22560-01
015-22470-01
015-22470-01
015-22560-01
015-25470-08
015-23150-01
015-25100-08
015-24100-08
015-25220-08
015-21470-05
015-21470-05
016-09100-05
015-25470-08
015-25470-08
015-25470-08
015-26100-08
015-23150-01CAP CER 0805 150P 5% NPO 50V
016-08470-01CAP ELEC SMD 47UF 6*4 16V
016-08470-01CAP ELEC SMD 47UF 6*4 16V
015-24100-08CAP CER 0805 1N 10% X7R 50V
016-07470-06CAP ELEC SMD BI-P 4U7 50V 20%
016-07470-06CAP ELEC SMD BI-P 4U7 50V 20%
015-25150-08CAP CER 0805 15N 10% X7R 50V
015-25150-08CAP CER 0805 15N 10% X7R 50V
014-07470-01CAP TANT SMD 4U7 25V 10% B
015-25470-08CAP CER 0805 47N 10% X7R 50V
015-26100-08CAP CER 0805 100N 10% X7R 50V
015-26100-08CAP CER 0805 100N 10% X7R 50V
014-08100-00CAP TANT SMD 10U 16V 20% 267C
014-08220-01CAP TANT SMD 22U 10V 10% C
015-24220-08CAP CER 0805 2N2 10% X7R 50V
015-24100-08CAP CER 0805 1N 10% X7R 50V
CAP TANT SMD 22U 10V 10% C
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP ELEC SMD 47UF 6*4 16V
CAP CER 0805 1N 10% X7R 50V
CAP TANT SMD 1U0 16V 20% A
CAP ELEC SMD BI-P 4U7 50V 20%
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 100N 10% X7R 50V
CAP TANT SMD 10U 16V 20% 267C
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 47N 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP TANT SMD 4U7 25V 10% B
CAP ELEC SMD 100U 25V 20%
CAP ELEC SMD BI-P 4U7 50V 20%
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 1P5+-0.25 NPO 50V
CAP CER 0805 1P5+-0.25 NPO 50V
CAP CER 0805 4P7+-0.25 NPO 50V
CAP CER 0805 4P7+-0.25 NPO 50V
CAP CER 0805 1P5+-0.25 NPO 50V
CAP CER 0805 1P5+-0.25 NPO 50V
CAP CER 0805 4P7+-0.25 NPO 50V
CAP CER 0805 4P7+-0.25 NPO 50V
CAP CER 0805 1P5+-0.25 NPO 50V
CAP CER 0805 4P7+-0.25 NPO 50V
CAP CER 0805 4P7+-0.25 NPO 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 56P 5% NPO 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 56P 5% NPO 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 56P 5% NPO 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 47N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 22N 10% X7R 50V
CAP CER 0805 4P7+-0.1PF 200V
CAP CER 0805 4P7+-0.1PF 200V
CAP ELEC SMD 100U 25V 20%
CAP CER 0805 47N 10% X7R 50V
CAP CER 0805 47N 10% X7R 50V
CAP CER 0805 47N 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
&C289
&C289
&C289
&C289
&C289
&C289
&C289
C291
C293
%C294
%C295
C300
C301
C302
C303
C305
C306
C307
C311
C313
C315
C316
C319
C325
C327
C330A
C330B
C331
C332
C333
C334
C335
C337
C338
C339
C340A
C340B
C341
C342
C343
C344
C345
C346
C347
C348
C349
C350A
C350B
C351
C352
C353
C354
C355
C356
C361
C362
C364
C365
C365
C365
C365
C365
C365
C365
C365
C365
C365
C365
C367
C368
C370A
C370B
C370C
C371
C372
C373
C374
C375
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Var
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
IPN
015-25470-08
015-25470-08
015-25470-08
015-26100-08
015-25470-08
015-25470-08
015-26100-08
014-08220-01
015-27100-10
015-22470-01
013-06470-00
015-24100-08
015-24100-08
015-06100-08
015-23150-01
015-23150-01
015-26100-08
015-25100-08
015-23150-01
015-23150-01
015-23150-01
015-23150-01
015-23150-01
015-23150-01
015-23150-01
015-23150-01
016-07100-01
015-24100-08
015-24100-08
015-23150-01
015-24100-08
015-25470-08
015-23150-01
015-23150-01
015-23150-01
015-23150-01
016-07100-01
015-24100-08
015-23150-01
015-24100-08
015-26100-08
015-23150-01
015-24100-08
015-23150-01
015-23150-01
015-06100-08
015-23150-01
016-07100-01
015-23150-01
015-24100-08
015-23150-01
015-22220-01
015-23150-01
015-23150-01
015-23150-01
015-23150-01
015-22120-01
015-22330-01
015-22330-01
015-22330-01
015-22330-01
015-22330-01
015-22330-01
015-22330-01
015-22330-01
015-22270-01
015-22270-01
015-22270-01
015-23150-01
015-21470-05
015-23150-01
015-06100-08
014-07470-01
015-25100-08
014-07470-01
015-06100-08
015-02330-06
015-02330-06
Description
CAP CER 0805 47N 10% X7R 50V
CAP CER 0805 47N 10% X7R 50V
CAP CER 0805 47N 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 47N 10% X7R 50V
CAP CER 0805 47N 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP TANT SMD 22U 10V 10% C
CAP CER 0805 1M+80-20% Y5V 16V
CAP CER 0805 47P 5% NPO 50V
CAP SMD POLY 470N 63V 10%
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 1206 100N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP ELEC SMD 1M 6*4 20% 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 47N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP ELEC SMD 1M 6*4 20% 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 1206 100N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP ELEC SMD 1M 6*4 20% 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 22P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 12P 5% NPO 50V
CAP CER 0805 33P 5% NPO 50V
CAP CER 0805 33P 5% NPO 50V
CAP CER 0805 33P 5% NPO 50V
CAP CER 0805 33P 5% NPO 50V
CAP CER 0805 33P 5% NPO 50V
CAP CER 0805 33P 5% NPO 50V
CAP CER 0805 33P 5% NPO 50V
CAP CER 0805 33P 5% NPO 50V
CAP CER 0805 27P 5% NPO 50V
CAP CER 0805 27P 5% NPO 50V
CAP CER 0805 27P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 4P7+-0.1PF 200V
CAP CER 0805 150P 5% NPO 50V
CAP CER 1206 100N 10% X7R 50V
CAP TANT SMD 4U7 25V 10% B
CAP CER 0805 10N 10% X7R 50V
CAP TANT SMD 4U7 25V 10% B
CAP CER 1206 100N 10% X7R 50V
CAP CER 1210 33P NPO 500V
CAP CER 1210 33P NPO 500V
IPN 220-01686-03
C6.2.4
Ref
C376
C377
C378
C378
C378
C378
C378
C378
C378
C378
C378
C378
C378
C380
C381
C382
C383
C384
C385
C386
C387
C388
C389
C391
C392
C393
C405
C405
C405
C405
C405
C405
C405
C405
C405
C405
C405
#C410
#C410
#C410
#C410
#C410
#C410
#C410
#C410
#C410
#C410
#C410
C415
C415
C415
C415
C415
C415
C415
C415
C415
C415
C415
C418
C419
C420
C421
C430
C435
C438
#C439
#C439
#C439
#C439
#C439
#C439
#C439
#C439
#C439
#C439
#C439
#C440
#C440
#C440
#C440
#C440
#C440
#C440
#C440
#C440
#C440
#C440
#C445
#C445
#C445
#C445
#C445
#C445
#C445
#C445
#C445
#C445
T854 PCB Information
Var
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
IPN
015-22220-01
015-22270-01
015-22120-01
015-22120-01
015-22120-01
015-22120-01
015-22120-01
015-22120-01
015-22120-01
015-22120-01
015-21820-02
015-21820-02
015-21820-02
015-22680-01
015-23150-01
015-26100-08
015-23150-01
015-23150-01
015-23150-01
015-24100-08
015-26100-08
015-26100-08
015-23150-01
015-23150-01
015-23150-05
015-26100-08
015-22120-01
015-22120-01
015-22120-01
015-22120-01
015-21820-02
015-21820-02
015-21820-02
015-21820-02
015-21680-02
015-21680-02
015-21680-02
029-02390-02
029-02390-02
029-02390-02
029-02390-02
029-02390-02
029-02390-02
029-02390-02
029-02390-02
029-02240-02
029-02240-02
029-02240-02
029-02330-02
029-02330-02
029-02330-02
029-02330-02
029-02330-02
029-02330-02
029-02330-02
029-02330-02
029-02240-02
029-02240-02
029-02240-02
015-06100-08
015-06100-08
015-23150-01
015-06100-08
015-24100-08
016-08470-01
029-02680-02
015-04100-06
015-04100-06
015-04100-06
015-04100-06
not fitted
not fitted
not fitted
not fitted
not fitted
not fitted
not fitted
029-02390-02
029-02390-02
029-02390-02
029-02390-02
029-02390-02
029-02390-02
029-02390-02
029-02390-02
029-02330-02
029-02330-02
029-02330-02
029-02390-02
029-02390-02
029-02390-02
029-02390-02
029-02330-02
029-02330-02
029-02330-02
029-02330-02
029-02330-02
029-02330-02
Description
CAP CER 0805 22P 5% NPO 50V
CAP CER 0805 27P 5% NPO 50V
CAP CER 0805 12P 5% NPO 50V
CAP CER 0805 12P 5% NPO 50V
CAP CER 0805 12P 5% NPO 50V
CAP CER 0805 12P 5% NPO 50V
CAP CER 0805 12P 5% NPO 50V
CAP CER 0805 12P 5% NPO 50V
CAP CER 0805 12P 5% NPO 50V
CAP CER 0805 12P 5% NPO 50V
CAP 0805 8P2 0.1 NPO 50V
CAP 0805 8P2 0.1 NPO 50V
CAP 0805 8P2 0.1 NPO 50V
CAP CER 0805 68P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP 0805 150P 1% 200V GRM40
CAP CER 0805 100N 10% X7R 50V
CAP 0805 12P 5% NPO 50V
CAP 0805 12P 5% NPO 50V
CAP 0805 12P 5% NPO 50V
CAP 0805 12P 5% NPO 50V
CAP 0805 8P2 0.1 NPO 50V
CAP 0805 8P2 0.1 NPO 50V
CAP 0805 8P2 0.1 NPO 50V
CAP 0805 8P2 0.1 NPO 50V
CAP 0805 6P8 0.1 NPO 50V
CAP 0805 6P8 0.1 NPO 50V
CAP 0805 6P8 0.1 NPO 50V
CAP MICA 5MM CASE 39P 5%
CAP MICA 5MM CASE 39P 5%
CAP MICA 5MM CASE 39P 5%
CAP MICA 5MM CASE 39P 5%
CAP MICA 5MM CASE 39P 5%
CAP MICA 5MM CASE 39P 5%
CAP MICA 5MM CASE 39P 5%
CAP MICA 5MM CASE 39P 5%
CAP MICA 5MM CASE 24P 5%
CAP MICA 5MM CASE 24P 5%
CAP MICA 5MM CASE 24P 5%
CAP MICA 5MM CASE 33P 5%
CAP MICA 5MM CASE 33P 5%
CAP MICA 5MM CASE 33P 5%
CAP MICA 5MM CASE 33P 5%
CAP MICA 5MM CASE 33P 5%
CAP MICA 5MM CASE 33P 5%
CAP MICA 5MM CASE 33P 5%
CAP MICA 5MM CASE 33P 5%
CAP MICA 5MM CASE 24P 5%
CAP MICA 5MM CASE 24P 5%
CAP MICA 5MM CASE 24P 5%
CAP CER 1206 100N 10% X7R 50V
CAP CER 1206 100N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 1206 100N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP ELEC SMD 47UF 6*4 16V
CAP MICA 5MM CASE 68P 5%
CAP CER 1210 1NF NPO200V GRM42
CAP CER 1210 1NF NPO200V GRM42
CAP CER 1210 1NF NPO200V GRM42
CAP CER 1210 1NF NPO200V GRM42
CAP MICA 5MM CASE 39P 5%
CAP MICA 5MM CASE 39P 5%
CAP MICA 5MM CASE 39P 5%
CAP MICA 5MM CASE 39P 5%
CAP MICA 5MM CASE 39P 5%
CAP MICA 5MM CASE 39P 5%
CAP MICA 5MM CASE 39P 5%
CAP MICA 5MM CASE 39P 5%
CAP MICA 5MM CASE 33P 5%
CAP MICA 5MM CASE 33P 5%
CAP MICA 5MM CASE 33P 5%
CAP MICA 5MM CASE 39P 5%
CAP MICA 5MM CASE 39P 5%
CAP MICA 5MM CASE 39P 5%
CAP MICA 5MM CASE 39P 5%
CAP MICA 5MM CASE 33P 5%
CAP MICA 5MM CASE 33P 5%
CAP MICA 5MM CASE 33P 5%
CAP MICA 5MM CASE 33P 5%
CAP MICA 5MM CASE 33P 5%
CAP MICA 5MM CASE 33P 5%
M8SL2-00-002-812
Ref
Var
IPN
#C445
C450
C455
#C460
#C460
#C460
#C460
#C460
#C460
#C460
#C460
#C460
#C460
#C460
#C465
#C465
#C465
#C465
#C465
#C465
#C465
#C465
#C465
#C465
#C465
C470
#C480
#C480
#C480
#C480
#C480
#C480
#C480
#C480
#C480
#C480
#C480
C481
C485
C490
C493
C496
C499
C503
C504
C505
C507
C508
C509
C510
C511
C512
C513
C514
C515
C516
C517
C518
C519
C525
C530
C535
C536
C537
C605
C607
C608
C610A
C610B
C611A
C611B
C623
C625
C626
C628
C630
C631A
C634
C636
C638
C640
C655
C660
C665
C670
C673
C677
C681
C684
C687
C690
C693
C700
C703
C706
C708
C709
C710
36
029-02330-02
015-03100-02
016-07470-04
029-02220-02
029-02220-02
029-02220-02
029-02220-02
029-02270-02
029-02270-02
029-02270-02
029-02270-02
029-02220-02
029-02220-02
029-02220-02
029-02220-02
029-02220-02
029-02220-02
029-02220-02
029-02270-02
029-02270-02
029-02270-02
029-02270-02
029-02220-02
029-02220-02
029-02220-02
015-03100-03
not fitted
not fitted
not fitted
not fitted
015-01470-02
015-01470-02
015-01470-02
015-01470-02
015-01470-02
015-01470-02
015-01470-02
015-23150-01
015-23150-01
015-23150-01
015-03100-03
015-23150-01
015-23150-01
015-24470-08
015-23150-01
015-25470-08
015-06100-08
015-23150-01
015-23150-01
015-25470-08
015-24470-08
015-26100-08
015-23150-01
015-23150-01
015-25100-08
015-25100-08
015-23150-01
015-26100-08
015-23150-01
015-23150-01
014-08220-01
015-06100-08
015-26100-08
015-23150-01
015-23150-01
015-24100-08
015-24100-08
015-25100-08
014-09100-00
014-09100-00
015-25100-08
015-23150-01
020-09470-07
015-24470-08
015-24100-08
015-26100-08
015-26100-08
014-08100-00
015-26100-08
015-23150-01
015-24100-08
015-24100-08
015-26100-08
014-08100-03
014-07330-10
015-24100-08
014-07100-02
015-26100-08
014-08100-00
015-23150-01
015-26100-08
014-08100-00
015-26100-08
015-24100-08
015-22470-01
014-07470-01
015-26100-08
015-25100-08
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
Description
CAP MICA 5MM CASE 33P 5%
CAP CER 1210 100P NPO5%200VHIQ
CAP ELEC SMD 4U7 50V 20%
CAP MICA 5MM CASE 22P 5%
CAP MICA 5MM CASE 22P 5%
CAP MICA 5MM CASE 22P 5%
CAP MICA 5MM CASE 22P 5%
CAP MICA 5MM CASE 27P 5%
CAP MICA 5MM CASE 27P 5%
CAP MICA 5MM CASE 27P 5%
CAP MICA 5MM CASE 27P 5%
CAP MICA 5MM CASE 22P 5%
CAP MICA 5MM CASE 22P 5%
CAP MICA 5MM CASE 22P 5%
CAP MICA 5MM CASE 22P 5%
CAP MICA 5MM CASE 22P 5%
CAP MICA 5MM CASE 22P 5%
CAP MICA 5MM CASE 22P 5%
CAP MICA 5MM CASE 27P 5%
CAP MICA 5MM CASE 27P 5%
CAP MICA 5MM CASE 27P 5%
CAP MICA 5MM CASE 27P 5%
CAP MICA 5MM CASE 22P 5%
CAP MICA 5MM CASE 22P 5%
CAP MICA 5MM CASE 22P 5%
CAP CER 100P 5% 500VHIQ GRM111
CAP CER 1210 4P7 NPO5% 200VHIQ
CAP CER 1210 4P7 NPO5% 200VHIQ
CAP CER 1210 4P7 NPO5% 200VHIQ
CAP CER 1210 4P7 NPO5% 200VHIQ
CAP CER 1210 4P7 NPO5% 200VHIQ
CAP CER 1210 4P7 NPO5% 200VHIQ
CAP CER 1210 4P7 NPO5% 200VHIQ
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 100P 5% 500VHIQ GRM111
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 47N 10% X7R 50V
CAP CER 1206 100N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 47N 10% X7R 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP TANT SMD 22U 10V 10% C
CAP CER 1206 100N 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP TANT SMD 100U 16V 20% E
CAP TANT SMD 100U 16V 20% E
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP ELEC RDL 470M 16V 20%
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP TANT SMD 10U 16V 20% 267C
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP TANT SMD 10U 35V 20% D
CAP TANT SMD 3U3 35V 10% C
CAP CER 0805 1N 10% X7R 50V
CAP TANT SMD 1U0 16V 20% A
CAP CER 0805 100N 10% X7R 50V
CAP TANT SMD 10U 16V 20% 267C
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 100N 10% X7R 50V
CAP TANT SMD 10U 16V 20% 267C
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 47P 5% NPO 50V
CAP TANT SMD 4U7 25V 10% B
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01686-03
T854 PCB Information
M8SL2-00-002-812
Ref
C711
C712
C714
C719
C720
C722
C724
C725
C726
C727
C729
%C733
C735
C736
C740A
C740B
C741A
C741B
C742A
C742B
C743
C745
C750
C757
C759
C761
C762
C764
C765
C767
C769
C770
C772
C774
C776
C782
C784
C785
C786
C788
C790
C792
C810
C812
C813
C822
C823
C824
C826
C827
C828
C830
C838
C841
C844
C880
#C900
#C900
#C900
#C900
#C900
#C900
#C900
#C900
#C900
#C900
#C900
#C910
#C910
#C910
#C910
#C910
#C910
#C910
#C910
#C910
#C910
#C910
#C920
#C920
#C920
#C920
#C920
#C920
#C920
#C920
#C920
#C920
#C920
#C940
#C940
#C940
#C940
#C940
#C940
#C940
#C940
#C940
Var
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
IPN
015-21820-02
015-22470-01
014-07470-01
014-07470-01
015-26100-08
015-26100-08
014-08220-01
014-08220-01
015-25100-08
015-23100-01
015-23100-01
015-23470-08
015-22470-01
015-22470-01
015-24100-08
015-25100-08
014-07470-01
015-25100-08
015-26100-08
015-25100-08
015-22470-01
015-23150-01
014-08100-03
015-25220-08
015-25470-08
015-25100-08
014-08220-01
015-25100-08
014-07470-01
015-24100-08
015-24100-08
014-08220-01
014-08220-01
013-06100-10
015-24470-08
015-23150-01
015-23150-01
015-23150-01
015-26100-08
015-23150-01
015-21820-02
015-23150-01
015-25470-08
015-23100-01
015-24100-08
014-07470-01
015-25220-08
015-25470-08
015-23220-01
015-22330-01
015-25100-08
015-25470-08
014-09100-00
014-09100-00
015-25100-08
015-23150-01
015-01560-06
015-01560-06
015-01560-06
015-01560-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01470-06
015-01470-06
015-01470-06
015-01470-06
015-01330-06
015-01330-06
015-01330-06
015-01330-06
015-01330-06
015-01330-06
015-01330-06
015-01560-06
015-01560-06
015-01560-06
015-01560-06
015-01470-06
015-01470-06
015-01470-06
015-01470-06
015-01470-06
Description
CAP 0805 8P2 0.1 NPO 50V
CAP CER 0805 47P 5% NPO 50V
CAP TANT SMD 4U7 25V 10% B
CAP TANT SMD 4U7 25V 10% B
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP TANT SMD 22U 10V 10% C
CAP TANT SMD 22U 10V 10% C
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 100P 5% NPO 50V
CAP CER 0805 100P 5% NPO 50V
CAP CER 0805 470P 10% X7R 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP TANT SMD 4U7 25V 10% B
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 47P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP TANT SMD 10U 35V 20% D
CAP CER 0805 22N 10% X7R 50V
CAP CER 0805 47N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP TANT SMD 22U 10V 10% C
CAP CER 0805 10N 10% X7R 50V
CAP TANT SMD 4U7 25V 10% B
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP TANT SMD 22U 10V 10% C
CAP TANT SMD 22U 10V 10% C
CAP SMD PPS 100N 50VDC 10%
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP 0805 8P2 0.1 NPO 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 0805 47N 10% X7R 50V
CAP CER 0805 100P 5% NPO 50V
CAP CER 0805 1N 10% X7R 50V
CAP TANT SMD 4U7 25V 10% B
CAP CER 0805 22N 10% X7R 50V
CAP CER 0805 47N 10% X7R 50V
CAP CER 0805 220P 5% NPO 50V
CAP CER 0805 33P 5% NPO 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 47N 10% X7R 50V
CAP TANT SMD 100U 16V 20% E
CAP TANT SMD 100U 16V 20% E
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 150P 5% NPO 50V
CAP CER 1210 5P6 NPO 500VGRM42
CAP CER 1210 5P6 NPO 500VGRM42
CAP CER 1210 5P6 NPO 500VGRM42
CAP CER 1210 5P6 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 4P7 NPO 500VGRM42
CAP CER 1210 4P7 NPO 500VGRM42
CAP CER 1210 4P7 NPO 500VGRM42
CAP CER 1210 4P7 NPO 500VGRM42
CAP CER 1210 3P3 NPO500VGRM42
CAP CER 1210 3P3 NPO500VGRM42
CAP CER 1210 3P3 NPO500VGRM42
CAP CER 1210 3P3 NPO500VGRM42
CAP CER 1210 3P3 NPO500VGRM42
CAP CER 1210 3P3 NPO500VGRM42
CAP CER 1210 3P3 NPO500VGRM42
CAP CER 1210 5P6 NPO 500VGRM42
CAP CER 1210 5P6 NPO 500VGRM42
CAP CER 1210 5P6 NPO 500VGRM42
CAP CER 1210 5P6 NPO 500VGRM42
CAP CER 1210 4P7 NPO500VGRM42
CAP CER 1210 4P7 NPO500VGRM42
CAP CER 1210 4P7 NPO500VGRM42
CAP CER 1210 4P7 NPO500VGRM42
CAP CER 1210 4P7 NPO500VGRM42
Ref
Var
IPN
C6.2.5
Description
#C940
#C940
#C950
#C950
#C950
#C950
#C950
#C950
#C950
#C950
#C950
#C950
#C950
#C970
#C970
#C970
#C970
#C970
#C970
#C970
#C970
#C970
#C970
#C970
#C980
#C980
#C980
#C980
#C980
#C980
#C980
#C980
#C980
#C980
#C980
#C990
#C990
#C990
#C990
#C990
#C990
#C990
#C990
#C990
#C990
#C990
35
36
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
015-01470-06
015-01470-06
015-01560-06
015-01560-06
015-01560-06
015-01560-06
015-01470-06
015-01470-06
015-01470-06
015-01470-06
015-01560-06
015-01560-06
015-01560-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01470-06
015-01470-06
015-01470-06
015-01470-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01330-06
015-01330-06
015-01330-06
015-01330-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
015-01390-06
CAP CER 1210 4P7 NPO500VGRM42
CAP CER 1210 4P7 NPO500VGRM42
CAP CER 1210 5P6 NPO 500VGRM42
CAP CER 1210 5P6 NPO 500VGRM42
CAP CER 1210 5P6 NPO 500VGRM42
CAP CER 1210 5P6 NPO 500VGRM42
CAP CER 1210 4P7 NPO500VGRM42
CAP CER 1210 4P7 NPO500VGRM42
CAP CER 1210 4P7 NPO500VGRM42
CAP CER 1210 4P7 NPO500VGRM42
CAP CER 1210 5P6 NPO 500VGRM42
CAP CER 1210 5P6 NPO 500VGRM42
CAP CER 1210 5P6 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 4P7 NPO500VGRM42
CAP CER 1210 4P7 NPO500VGRM42
CAP CER 1210 4P7 NPO500VGRM42
CAP CER 1210 4P7 NPO500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P3 NPO 500VGRM42
CAP CER 1210 3P3 NPO 500VGRM42
CAP CER 1210 3P3 NPO 500VGRM42
CAP CER 1210 3P3 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
CAP CER 1210 3P9 NPO 500VGRM42
#CV475
#CV475
#CV475
#CV475
#CV475
#CV475
#CV475
#CV475
#CV475
#CV475
#CV475
10
13
15
16
20
23
25
26
30
35
36
028-02160-00
028-02160-00
028-02160-00
028-02160-00
028-02100-11
028-02100-11
028-02100-11
028-02100-11
028-02100-11
028-02100-11
028-02100-11
CAP TRIM VERT 1.9P~16.1P
CAP TRIM VERT 1.9P~16.1P
CAP TRIM VERT 1.9P~16.1P
CAP TRIM VERT 1.9P~16.1P
CAP TRIM VERT 1.6P~11.4P
CAP TRIM VERT 1.6P~11.4P
CAP TRIM VERT 1.6P~11.4P
CAP TRIM VERT 1.6P~11.4P
CAP TRIM VERT 1.6P~11.4P
CAP TRIM VERT 1.6P~11.4P
CAP TRIM VERT 1.6P~11.4P
D111
D211
D212
D220
D230
D240
D245
D250
D260
D270
D340
D360
D380
D381
D420
D440
D510
D610
D620
D630
D640
D645
D710
D720
D730
D732
D810
D635A
001-10015-50
008-00014-80
008-00014-79
001-10000-99
001-10010-40
001-10000-56
001-10000-56
001-10000-56
001-10000-56
001-10000-99
001-10000-18
001-10000-18
001-10000-18
001-10084-51
001-10066-00
001-10066-00
001-10000-70
001-10000-99
001-10000-70
001-10000-70
001-10000-70
001-10010-40
001-10000-99
001-10000-99
001-10165-00
001-10165-00
001-10165-00
001-10165-00
DIODE SMD 1.5SMC22AT3 TVS/ZEN
LED 3MM GRN W/WIRE
LED 3MM RED W/WIRE
DIODE SMD BAV99 D-SW SOT23
DIODE SMD BZG03-C33 33V ZEN
DIODE SMD BAW56 D-SW SOT23
DIODE SMD BAW56 D-SW SOT23
DIODE SMD BAW56 D-SW SOT23
DIODE SMD BAW56 D-SW SOT23
DIODE SMD BAV99 D-SW SOT23
DIODE SMD BAT18 S-SW SOT23
DIODE SMD BAT18 S-SW SOT23
DIODE SMD BAT18 S-SW SOT23
DIODE SMD BZX84C5V1 ZEN SOT23
DIODE HSMS2815 SCH
DIODE HSMS2815 SCH
DIODE SMD BAV70 D-SW SOT23
DIODE SMD BAV99 D-SW SOT23
DIODE SMD BAV70 D-SW SOT23
DIODE SMD BAV70 D-SW SOT23
DIODE SMD BAV70 D-SW SOT23
DIODE SMD BZG03-C33 33V ZEN
DIODE SMD BAV99 D-SW SOT23
DIODE SMD BAV99 D-SW SOT23
DIODE BAT165 SCH SOD323
DIODE BAT165 SCH SOD323
DIODE BAT165 SCH SOD323
DIODE BAT165 SCH SOD323
IC210
IC220
IC230
IC240
IC250
IC260
IC330
IC340
IC350
IC370
002-10003-24
002-10126-70
002-10003-24
002-10040-53
002-10020-50
002-10003-24
002-10003-58
002-10003-58
002-10003-58
002-12951-00
IC SMD 324 4X 0-AMP SO14
IC SMD DS1267S10K 2XDIG POT
IC SMD 324 4X 0-AMP SO14
IC SMD 4053B BREAK B4 MAKE
IC SMD 4N25A OPTO-C
IC SMD 324 4X 0-AMP SO14
IC SMD LM358 DUAL 0-AMP
IC SMD LM358 DUAL 0-AMP
IC SMD LM358 DUAL 0-AMP
IC SMD LP2951CM ADJ VLTGE REG
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01686-03
C6.2.6
Ref
T854 PCB Information
Var
IPN
Description
IC610
IC630
IC640
IC650
0
IC710
IC720
IC730
IC740
IC750
IC810
IC820
IC830
002-10078-05
002-12523-17
002-10003-58
002-10012-32
539-00010-50
002-74900-04
002-74910-04
002-10045-20
002-14519-30
002-10330-78
002-08951-20
002-12416-00
002-10003-24
IC SMD 78L05 5V REG
IC LM317L REG TO252 0.5A
IC SMD LM358 DUAL 0-AMP
IC DS1232LPS-2 LO-P RESET&WDOG
TCXO 12.8MHZ +-1PPM -30 +70C
IC SMD 74HC04D 6X INV BUFFD
IC SMD 74HCU04 6X INV
IC SMD 74HC4520T 2XCTR 4BIT
IC MC145193F SMD SYNTH
IC MC33078D 2X AMP LO-N
IC AT89C51 PLCC44 MIC 12MHZ
IC SMD AT24C16N-10SC EEPROM
IC SMD 324 4X 0-AMP SO14
L302
L304
L305
L320
L326
L327
L328
L333
L334
L405
L410
L415
L420
L425
L430
L435
L445
L450
L460
L465
L475
L480
L481
L485
L520
L521
L522
L601
L750
#L910
#L910
#L910
#L910
#L910
#L910
#L910
#L910
#L910
#L910
#L910
#L920
#L920
#L920
#L920
#L920
#L920
#L920
#L920
#L920
#L920
#L920
#L930
#L930
#L930
#L930
#L930
#L930
#L930
#L930
#L930
#L930
#L930
#L940
#L940
#L940
#L940
#L940
#L940
#L940
#L940
#L940
#L940
#L940
057-10120-03
052-57320-30
059-16330-05
056-10330-02
059-16270-10
065-10004-20
057-10120-03
057-10120-03
057-10120-03
052-08125-15
052-08160-15
065-10004-20
065-10009-20
052-08340-50
065-10004-20
052-08160-15
052-08130-35
065-10004-20
065-10004-20
051-00005-53
051-00005-56
056-10330-02
056-10330-02
056-10330-02
057-10120-03
057-10120-03
057-10120-03
057-10120-03
052-08125-15
052-08155-15
052-08155-15
052-08155-15
052-08155-15
052-08155-15
052-08155-15
052-08155-15
052-08155-15
052-08150-15
052-08150-15
052-08150-15
052-08155-15
052-08155-15
052-08155-15
052-08155-15
052-08155-15
052-08155-15
052-08155-15
052-08155-15
052-08145-15
052-08145-15
052-08145-15
052-08155-15
052-08155-15
052-08155-15
052-08155-15
052-08155-15
052-08155-15
052-08155-15
052-08155-15
052-08145-15
052-08145-15
052-08145-15
052-08150-15
052-08150-15
052-08150-15
052-08150-15
052-08150-15
052-08150-15
052-08150-15
052-08150-15
052-08140-15
052-08140-15
052-08140-15
IND 0805 120E@100M .2 EMI SUPR
COIL A/W SMD 3T/2MM .57MM
IND SMD 0805CS 330NH 5%
IND SMD 1210 330NH 10% SIMID02
IND SMD 1008CS 270NH 5%
BEAD FER SMD CBD 4.6/3/3-4S2
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
COIL A/W 1.5T/2.5MM HOR 0.8MM
COIL A/W 1.5T/6.0MM HOR 0.8MM
BEAD FER SMD CBD 4.6/3/3-4S2
BEAD FER SMD BDS3/3/8.9-4S2
COIL A/W SMD 5T/4.0MM 0.8MM
BEAD FER SMD CBD 4.6/3/3-4S2
COIL A/W 1.5T/6.0MM HOR 0.8MM
COIL A/W 3.5T/3.0MM HOR 0.8MM
BEAD FER SMD CBD 4.6/3/3-4S2
BEAD FER SMD CBD 4.6/3/3-4S2
COIL TAIT#553 A/W 10MM LNK
COIL#556 13MM FRMD CU STIRP
IND SMD 1210 330NH 10% SIMID02
IND SMD 1210 330NH 10% SIMID02
IND SMD 1210 330NH 10% SIMID02
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
COIL A/W 1.5T/2.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/5.0MM HOR 0.8MM
COIL A/W 1.5T/5.0MM HOR 0.8MM
COIL A/W 1.5T/5.0MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/4.5MM HOR 0.8MM
COIL A/W 1.5T/4.5MM HOR 0.8MM
COIL A/W 1.5T/4.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/5.5MM HOR 0.8MM
COIL A/W 1.5T/4.5MM HOR 0.8MM
COIL A/W 1.5T/4.5MM HOR 0.8MM
COIL A/W 1.5T/4.5MM HOR 0.8MM
COIL A/W 1.5T/5.0MM HOR 0.8MM
COIL A/W 1.5T/5.0MM HOR 0.8MM
COIL A/W 1.5T/5.0MM HOR 0.8MM
COIL A/W 1.5T/5.0MM HOR 0.8MM
COIL A/W 1.5T/5.0MM HOR 0.8MM
COIL A/W 1.5T/5.0MM HOR 0.8MM
COIL A/W 1.5T/5.0MM HOR 0.8MM
COIL A/W 1.5T/5.0MM HOR 0.8MM
COIL A/W 1.5T/4.0MM HOR 0.8MM
COIL A/W 1.5T/4.0MM HOR 0.8MM
COIL A/W 1.5T/4.0MM HOR 0.8MM
P100
PL100
PL201
PL202
240-02100-06
070-01001-00
240-00021-03
240-00021-03
SKT COAX N TYPE PNL MTG OPNTRM
DRNG 15WAY CMPLT T800
HDR 2X7W SMD
HDR 2X7W SMD
Q100
Q101
Q102
Q210
Q211
000-10029-55
000-10008-17
000-10008-57
000-10008-47
006-13000-00
XSTR SMD MJD2955 PNP 20W
XSTR SMD BC817-25 NPN SOT23
XSTR SMD BC857 PNP SOT23 SS
XSTR SMD BC847B NPN SOT23
SID P0300 ITU/UL/IEC DO214
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
M8SL2-00-002-812
Ref
Var
IPN
Description
Q220
Q230
Q240
Q250
Q260
Q270
Q320
Q325
Q326
Q330
Q331
Q332
Q333
Q334
Q335
Q336
Q337
Q340
Q341
Q345
Q410
Q420
Q505
Q510
Q520
Q530
Q540
Q550
Q610
Q620
Q630
Q660
Q670
Q710
Q720
Q730
Q740
Q750
Q760
Q770
Q775
Q780
Q785
Q790
Q795
Q810
Q820
Q830
Q840
Q850
Q860
000-10008-17
000-10008-47
000-10008-47
000-10008-17
000-10008-57
000-10004-10
000-10008-47
000-10008-47
000-10008-47
000-10008-07
000-10085-70
000-10008-07
000-00011-91
000-10008-47
000-10008-07
000-10055-03
000-10059-10
000-10008-07
000-10008-47
000-10008-07
000-00022-75
000-00022-80
000-10008-47
000-10008-07
000-10008-07
000-10008-07
000-10008-07
000-10008-47
000-10008-07
000-00033-12
000-10003-00
000-10008-17
000-10008-57
000-10008-47
000-10008-57
000-10008-47
000-10008-57
000-10008-07
000-10008-47
000-10008-57
000-10008-57
000-10008-47
000-10008-57
000-10003-12
000-10009-30
000-10008-47
000-10008-17
000-10008-57
000-10008-57
000-10008-47
000-10008-47
XSTR SMD BC817-25 NPN SOT23
XSTR SMD BC847B NPN SOT23
XSTR SMD BC847B NPN SOT23
XSTR SMD BC817-25 NPN SOT23
XSTR SMD BC857 PNP SOT23 SS
XSTR SMD MJD41C NPN SW DPAK
XSTR SMD BC847B NPN SOT23
XSTR SMD BC847B NPN SOT23
XSTR SMD BC847B NPN SOT23
XSTR SMD BC807 PNP SOT23 AF
XSTR BC856 PNP DUAL SOT363
XSTR SMD BC807 PNP SOT23 AF
XSTR BD139 NPN AF PWR TO126
XSTR SMD BC847B NPN SOT23
XSTR SMD BC807 PNP SOT23 AF
XSTR PD55003 3W 12.5V SO10RF
XSTR SMD BFG591 7G NPN SOT223
XSTR SMD BC807 PNP SOT23 AF
XSTR SMD BC847B NPN SOT23
XSTR SMD BC807 PNP SOT23 AF
XSTR SD1433 NPN SMTG 10W
XSTR SD1488 NPN 6LFL 40W
XSTR SMD BC847B NPN SOT23
XSTR SMD BC807 PNP SOT23 AF
XSTR SMD BC807 PNP SOT23 AF
XSTR SMD BC807 PNP SOT23 AF
XSTR SMD BC807 PNP SOT23 AF
XSTR SMD BC847B NPN SOT23
XSTR SMD BC807 PNP SOT23 AF
XSTR BD242 TO220 PNP ISO
XSTR SMD BSR30 PNP AF SOT89
XSTR SMD BC817-25 NPN SOT23
XSTR SMD BC857 PNP SOT23 SS
XSTR SMD BC847B NPN SOT23
XSTR SMD BC857 PNP SOT23 SS
XSTR SMD BC847B NPN SOT23
XSTR SMD BC857 PNP SOT23 SS
XSTR SMD BC807 PNP SOT23 AF
XSTR SMD BC847B NPN SOT23
XSTR SMD BC857 PNP SOT23 SS
XSTR SMD BC857 PNP SOT23 SS
XSTR SMD BC847B NPN SOT23
XSTR SMD BC857 PNP SOT23 SS
XSTR SMD BFR31 N JFET SOT23
XSTR SMD BFR93A NPN SOT23
XSTR SMD BC847B NPN SOT23
XSTR SMD BC817-25 NPN SOT23
XSTR SMD BC857 PNP SOT23 SS
XSTR SMD BC857 PNP SOT23 SS
XSTR SMD BC847B NPN SOT23
XSTR SMD BC847B NPN SOT23
R100
R101
R102
R103
R160
R202
%R203B
%R203E
R204
R205
R206
R207
R208
R209
R210
%R211
R212
R213
R214
R215
R216
R217
R218
R219
%R220
R221
R223
R224
R225
R226
R227
R229
R230
R231
R232
R233
R235
R236
R237
R238
R239
R240
R241
R242
R243
R244
036-01100-10
036-15120-00
036-14390-10
036-15120-00
036-12100-10
036-14100-10
036-10000-00
036-13560-10
036-14220-00
036-13220-10
036-14100-10
036-14390-10
036-13560-10
036-15100-10
036-14220-00
036-10000-00
036-16100-10
036-15100-10
036-14820-10
036-16100-10
036-16100-10
036-14100-10
036-16150-00
036-14220-00
036-10000-00
036-14150-10
036-17100-10
036-14680-10
036-17100-10
036-15100-10
036-14220-00
036-16470-00
036-16100-10
036-15100-10
036-16330-00
036-16100-10
036-14470-10
036-10000-00
036-15470-10
036-15470-10
036-14150-10
036-10000-00
036-14470-10
036-14220-00
036-10000-00
036-15100-10
RES 2512 1E 5% 1W
RES M/F SMD 0805 12K 5%
RES M/F SMD 0805 3K9 1%
RES M/F SMD 0805 12K 5%
RES M/F SMD 0805 10E 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 0E 0.125W
RES M/F SMD 0805 560E 1%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 220E 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 3K9 1%
RES M/F SMD 0805 560E 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 0E 0.125W
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 8K2 1%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 150K 5%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 0E 0.125W
RES M/F SMD 0805 1K5 1%
RES M/F SMD 0805 1M 1%
RES M/F SMD 0805 6K8 1%
RES M/F SMD 0805 1M 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 470K 5%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 330K 5%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 0E 0.125W
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 1K5 1%
RES M/F SMD 0805 0E 0.125W
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 0E 0.125W
RES M/F SMD 0805 10K 1%
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01686-03
T854 PCB Information
M8SL2-00-002-812
Ref
R245
R247
R248
R249
R251
R253
R254
R255
R256
R257
R258
R259
R260
R262
R263
&R264
&R264
&R264
&R264
&R264
&R264
&R264
&R264
&R264
&R264
&R264
&R265
&R265
&R265
&R265
&R265
&R265
&R265
&R265
&R265
&R265
&R265
&R266
&R266
&R266
&R266
&R266
&R266
&R266
&R266
&R266
&R266
&R266
R267
R268
R269
R270
R271
R272
R273
R274
R275
R276
R277
%R278
R279
R280
R282
R283
R284
R285
R286
R287
R288
R289
&R290
&R290
&R290
&R290
&R290
&R290
&R290
&R290
&R290
&R290
&R290
%R291
R292
R293
R294
R295
R296
R297
%R298
R299
R300
R301
R302
R303
R304
R305
R306
R307
Var
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
IPN
036-16100-10
036-15100-10
036-16100-10
036-16100-10
036-16100-10
036-16100-10
036-16100-10
036-15100-10
036-15560-10
036-16560-00
036-16150-00
036-15220-00
036-15470-10
036-15470-10
036-14470-10
036-15220-00
036-15220-00
036-15270-10
036-15180-10
036-15220-00
036-15220-00
036-15270-10
036-15180-10
036-15220-00
036-15270-10
036-15180-10
036-15150-10
036-15150-10
036-15180-10
036-15150-10
036-15150-10
036-15150-10
036-15180-10
036-15150-10
036-15150-10
036-15180-10
036-15150-10
036-15470-10
036-15470-10
036-15560-10
036-15470-10
036-15470-10
036-15470-10
036-15560-10
036-15470-10
036-15470-10
036-15560-10
036-15470-10
036-14220-00
036-13100-10
036-15100-10
036-14120-00
036-17100-10
036-13560-10
036-15120-00
036-15150-10
036-14270-10
036-10000-00
036-16100-10
036-16100-10
036-17100-10
036-15100-10
036-15560-10
036-15560-10
036-17100-10
036-10000-00
036-14220-00
036-15100-10
036-15180-10
036-16100-10
036-13560-10
036-13560-10
036-13560-10
036-13680-10
036-13560-10
036-13560-10
036-13560-10
036-13680-10
036-13560-10
036-13560-10
036-13680-10
036-10000-00
036-14470-10
036-15470-10
036-14470-10
036-14270-10
036-14100-10
036-14560-00
036-16100-10
036-14270-10
036-14100-10
036-15100-10
036-14100-10
036-15100-10
036-15470-10
036-15330-10
036-16100-10
036-15100-10
Description
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 56K 1%
RES M/F SMD 0805 560K 5%
RES M/F SMD 0805 150K 5%
RES M/F SMD 0805 22K 5%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 22K 5%
RES M/F SMD 0805 22K 5%
RES M/F SMD 0805 27K 1%
RES M/F SMD 0805 18K 1%
RES M/F SMD 0805 22K 5%
RES M/F SMD 0805 22K 5%
RES M/F SMD 0805 27K 1%
RES M/F SMD 0805 18K 1%
RES M/F SMD 0805 22K 5%
RES M/F SMD 0805 27K 1%
RES M/F SMD 0805 18K 1%
RES M/F SMD 0805 15K 1%
RES M/F SMD 0805 15K 1%
RES M/F SMD 0805 18K 1%
RES M/F SMD 0805 15K 1%
RES M/F SMD 0805 15K 1%
RES M/F SMD 0805 15K 1%
RES M/F SMD 0805 18K 1%
RES M/F SMD 0805 15K 1%
RES M/F SMD 0805 15K 1%
RES M/F SMD 0805 18K 1%
RES M/F SMD 0805 15K 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 56K 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 56K 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 56K 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 100E 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 1K2 5%
RES M/F SMD 0805 1M 1%
RES M/F SMD 0805 560E 1%
RES M/F SMD 0805 12K 5%
RES M/F SMD 0805 15K 1%
RES M/F SMD 0805 2K7 1%
RES M/F SMD 0805 0E 0.125W
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 1M 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 56K 1%
RES M/F SMD 0805 56K 1%
RES M/F SMD 0805 1M 1%
RES M/F SMD 0805 0E 0.125W
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 18K 1%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 560E 1%
RES M/F SMD 0805 560E 1%
RES M/F SMD 0805 560E 1%
RES M/F SMD 0805 680E 1%
RES M/F SMD 0805 560E 1%
RES M/F SMD 0805 560E 1%
RES M/F SMD 0805 560E 1%
RES M/F SMD 0805 680E 1%
RES M/F SMD 0805 560E 1%
RES M/F SMD 0805 560E 1%
RES M/F SMD 0805 680E 1%
RES M/F SMD 0805 0E 0.125W
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 2K7 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 5K6 5%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 2K7 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 33K 1%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 10K 1%
Ref
R309
R311
R312
R313
R316
R319
R320
R323
R324
R325
R326
R327
R328
R329
R330
R331
R332
R334
R336
R337
R338
R339
R340
R341
R342
R343
R344
R345
R346
R347
R348
R349
R350
R351
R352
R353
R355
R356
R357
R359
R360
R361
R362
R363
R364
R365
R366
R367
R368
R369
R370
R371
R372
R373
R374
R376
R378
R379
R380
R381
R382
R383
R384
R387
#R410
#R410
#R410
#R410
#R410
#R410
#R410
#R410
#R410
#R410
#R410
#R430
#R430
#R430
#R430
#R430
#R430
#R430
#R430
#R430
#R430
#R430
R450
#R451
#R451
#R451
#R451
#R451
#R451
#R451
#R451
#R451
#R451
#R451
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Var
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
IPN
036-16220-00
036-16100-10
036-15150-10
036-16470-00
036-16270-00
036-15470-10
036-14470-10
036-13220-10
036-13100-10
036-14100-10
036-11330-00
036-12220-00
036-12820-00
036-13470-00
036-13220-10
036-12180-00
036-13330-00
036-12680-00
036-10000-00
036-12100-10
036-13120-00
036-14100-10
036-14560-00
036-16220-00
036-12470-00
036-15100-10
036-14150-10
036-14680-10
036-14330-10
036-16150-00
036-12100-10
036-14330-10
036-13220-10
036-16100-10
036-12680-00
036-15100-10
036-14150-10
036-16100-10
036-15470-10
036-15470-10
036-14150-10
036-12680-00
036-16180-00
036-15470-10
036-15470-10
036-15560-10
036-15100-10
036-15100-10
036-15220-00
036-16100-10
036-12100-10
036-16100-10
036-14680-10
036-13820-00
036-14120-00
036-14150-10
036-00220-10
036-13100-10
036-11180-10
036-14150-10
036-12470-00
036-15150-10
036-13560-10
036-13330-00
036-00120-05
036-00120-05
036-00120-05
036-00120-05
036-00120-05
036-00120-05
036-00120-05
036-00120-05
036-00120-05
036-00120-05
036-00120-05
036-00120-05
036-00120-05
036-00120-05
036-00120-05
036-00120-05
036-00120-05
036-00120-05
036-00120-05
036-00120-05
036-00120-05
036-00120-05
036-03130-10
036-03118-10
036-03118-10
036-03118-10
036-03118-10
not fitted
not fitted
not fitted
not fitted
not fitted
not fitted
not fitted
Description
RES M/F SMD 0805 220K 5%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 15K 1%
RES M/F SMD 0805 470K 5%
RES M/F SMD 0805 270K 5%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 220E 1%
RES M/F SMD 0805 100E 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 3E3 5%
RES M/F SMD 0805 22E 5%
RES M/F SMD 0805 82E 5%
RES M/F SMD 0805 470E 5%
RES M/F SMD 0805 220E 1%
RES M/F SMD 0805 18E 5%
RES M/F SMD 0805 330E 5%
RES M/F SMD 0805 68E 5%
RES M/F SMD 0805 0E 0.125W
RES M/F SMD 0805 10E 1%
RES M/F SMD 0805 120E 5%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 5K6 5%
RES M/F SMD 0805 220K 5%
RES M/F SMD 0805 47E 5%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 1K5 1%
RES M/F SMD 0805 6K8 1%
RES M/F SMD 0805 3K3 1%
RES M/F SMD 0805 150K 5%
RES M/F SMD 0805 10E 1%
RES M/F SMD 0805 3K3 1%
RES M/F SMD 0805 220E 1%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 68E 5%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 1K5 1%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 1K5 1%
RES M/F SMD 0805 68E 5%
RES M/F SMD 0805 180K 5%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 56K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 22K 5%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 10E 1%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 6K8 1%
RES M/F SMD 0805 820E 5%
RES M/F SMD 0805 1K2 5%
RES M/F SMD 0805 1K5 1%
RES 1206 0E22 1% 0.25W
RES M/F SMD 0805 100E 1%
RES M/F SMD 0805 1E8 1%
RES M/F SMD 0805 1K5 1%
RES M/F SMD 0805 47E 5%
RES M/F SMD 0805 15K 1%
RES M/F SMD 0805 560E 1%
RES M/F SMD 0805 330E 5%
RES 2010 0E12 1% 0.5W METAL ST
RES 2010 0E12 1% 0.5W METAL ST
RES 2010 0E12 1% 0.5W METAL ST
RES 2010 0E12 1% 0.5W METAL ST
RES 2010 0E12 1% 0.5W METAL ST
RES 2010 0E12 1% 0.5W METAL ST
RES 2010 0E12 1% 0.5W METAL ST
RES 2010 0E12 1% 0.5W METAL ST
RES 2010 0E12 1% 0.5W METAL ST
RES 2010 0E12 1% 0.5W METAL ST
RES 2010 0E12 1% 0.5W METAL ST
RES 2010 0E12 1% 0.5W METAL ST
RES 2010 0E12 1% 0.5W METAL ST
RES 2010 0E12 1% 0.5W METAL ST
RES 2010 0E12 1% 0.5W METAL ST
RES 2010 0E12 1% 0.5W METAL ST
RES 2010 0E12 1% 0.5W METAL ST
RES 2010 0E12 1% 0.5W METAL ST
RES 2010 0E12 1% 0.5W METAL ST
RES 2010 0E12 1% 0.5W METAL ST
RES 2010 0E12 1% 0.5W METAL ST
RES 2010 0E12 1% 0.5W METAL ST
RES 2512 30E 5% 1W
RES 2512 18R 5% 1W
RES 2512 18R 5% 1W
RES 2512 18R 5% 1W
RES 2512 18R 5% 1W
C6.2.7
IPN 220-01686-03
C6.2.8
Ref
R460
R470
R471
R472
R473
R480
R481
R490
R501
R502
R503
R504
R505
R510
R513
R514
R515
#R517
#R517
#R517
#R517
#R517
#R517
#R517
#R517
#R517
#R517
#R517
#R518
#R518
#R518
#R518
#R518
#R518
#R518
#R518
#R518
#R518
#R518
#R519
#R519
#R519
#R519
#R519
#R519
#R519
#R519
#R519
#R519
#R519
R520
R523
R525
R530
R535
R540
R545
%R550
R555
R560
R609
R613
R615
R617
R619
R621
R625
R629
R633
R637
R638
R640
R641
R645
R649
R651
R652
R653
R657
R661
R665
R669
R673
R677
R681
R685
R689
R693
R696
R701
R702
R703
%R704
R706
R707
R708
R709
R710
T854 PCB Information
Var
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
10
13
15
16
20
23
25
26
30
35
36
IPN
036-14470-10
036-13100-10
015-23150-01
036-13560-10
036-13470-00
036-13100-10
045-04470-00
036-14470-10
036-15100-10
036-15100-10
036-14560-00
036-13330-00
036-15150-10
036-14150-10
036-15100-10
036-12330-00
036-12560-00
036-13150-10
036-13150-10
036-13150-10
036-13150-10
036-13330-00
036-13330-00
036-13330-00
036-13330-00
036-13330-00
036-13330-00
036-13330-00
036-12330-00
036-12330-00
036-12330-00
036-12330-00
036-12180-00
036-12180-00
036-12180-00
036-12180-00
036-12180-00
036-12180-00
036-12180-00
036-13150-10
036-13150-10
036-13150-10
036-13150-10
036-13330-00
036-13330-00
036-13330-00
036-13330-00
036-13330-00
036-13330-00
036-13330-00
036-13150-10
036-16120-10
036-15470-10
036-15220-00
036-15100-10
036-14220-00
036-14470-10
036-14120-00
036-14470-10
036-13470-00
036-14100-10
036-13560-10
036-13100-10
036-10000-00
036-01100-10
036-01100-10
036-14100-10
036-03270-10
036-14680-10
036-12220-00
036-12220-00
036-12100-10
036-14150-10
036-13470-00
036-14470-10
036-10000-00
036-10000-00
036-15100-10
036-15100-10
036-15100-10
036-16100-10
036-15470-10
036-16100-10
036-15470-10
036-13100-10
036-15150-10
036-12100-10
036-16100-10
036-15560-10
036-12220-00
036-15470-10
036-15470-10
036-10000-00
036-15150-10
036-16100-10
036-16470-00
036-12100-10
036-13100-10
Description
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 100E 1%
CAP CER 0805 150P 5% NPO 50V
RES M/F SMD 0805 560E 1%
RES M/F SMD 0805 470E 5%
RES M/F SMD 0805 100E 1%
RES NTC SMD 4K7 5% 20MW
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 5K6 5%
RES M/F SMD 0805 330E 5%
RES M/F SMD 0805 15K 1%
RES M/F SMD 0805 1K5 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 33E 5%
RES M/F SMD 0805 56E 5%
RES M/F SMD 0805 150E 1%
RES M/F SMD 0805 150E 1%
RES M/F SMD 0805 150E 1%
RES M/F SMD 0805 150E 1%
RES M/F SMD 0805 330E 5%
RES M/F SMD 0805 330E 5%
RES M/F SMD 0805 330E 5%
RES M/F SMD 0805 330E 5%
RES M/F SMD 0805 330E 5%
RES M/F SMD 0805 330E 5%
RES M/F SMD 0805 330E 5%
RES M/F SMD 0805 33E 5%
RES M/F SMD 0805 33E 5%
RES M/F SMD 0805 33E 5%
RES M/F SMD 0805 33E 5%
RES M/F SMD 0805 18E 5%
RES M/F SMD 0805 18E 5%
RES M/F SMD 0805 18E 5%
RES M/F SMD 0805 18E 5%
RES M/F SMD 0805 18E 5%
RES M/F SMD 0805 18E 5%
RES M/F SMD 0805 18E 5%
RES M/F SMD 0805 150E 1%
RES M/F SMD 0805 150E 1%
RES M/F SMD 0805 150E 1%
RES M/F SMD 0805 150E 1%
RES M/F SMD 0805 330E 5%
RES M/F SMD 0805 330E 5%
RES M/F SMD 0805 330E 5%
RES M/F SMD 0805 330E 5%
RES M/F SMD 0805 330E 5%
RES M/F SMD 0805 330E 5%
RES M/F SMD 0805 330E 5%
RES M/F SMD 0805 150E 1%
RES M/F SMD 0805 120K 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 22K 5%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 1K2 5%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 470E 5%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 560E 1%
RES M/F SMD 0805 100E 1%
RES M/F SMD 0805 0E 0.125W
RES 2512 1E 5% 1W
RES 2512 1E 5% 1W
RES M/F SMD 0805 1K 1%
RES 2512 270E 5% 1W
RES M/F SMD 0805 6K8 1%
RES M/F SMD 0805 22E 5%
RES M/F SMD 0805 22E 5%
RES M/F SMD 0805 10E 1%
RES M/F SMD 0805 1K5 1%
RES M/F SMD 0805 470E 5%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 0E 0.125W
RES M/F SMD 0805 0E 0.125W
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 100E 1%
RES M/F SMD 0805 15K 1%
RES M/F SMD 0805 10E 1%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 56K 1%
RES M/F SMD 0805 22E 5%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 0E 0.125W
RES M/F SMD 0805 15K 1%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 470K 5%
RES M/F SMD 0805 10E 1%
RES M/F SMD 0805 100E 1%
M8SL2-00-002-812
Ref
R711
R712
R713
%R715
R717
R718
R719
R720
R721
R722
R723
R725
%R726
R727
R728
R730
R731
R732
R742
R743
R744
R746
R747
R748
R749
R750
R752
R753
R754
R756
R757
R758
R759
R760
R762
R763
R765
R766
R767
R769
R771
R772
R774
R775
R777
R780
R782
R784
R785
R786
R787
R790
R791
R801
R802
R808
R809
R810
R811
R812
R813
R815
R816
R818
R819
R821
R822
R824
R825
R826
R827
R828
R829
R830
R831
R832
R833
R835
R836
R837
R840
R841
R842
R843
R845
R847
R848
R849
R850
R853
R854
R855
%R857
R859
R861
R863
R865
R867
Var
IPN
036-13100-10
036-12100-10
036-10000-00
036-14100-10
036-14270-10
036-15270-10
036-15270-10
036-15390-10
036-15100-10
036-15100-10
036-14270-10
036-15390-10
036-13100-10
036-15100-10
036-15100-10
036-13470-00
036-13470-00
036-13470-00
036-13150-10
036-13150-10
036-12220-00
036-12220-00
036-12220-00
036-15470-10
036-15470-10
036-12220-00
036-12220-00
036-17100-10
036-14100-10
036-16100-10
036-16100-10
036-14120-00
036-13330-00
036-13180-00
036-13100-10
036-13100-10
036-13680-10
036-14100-10
036-13680-10
036-13180-00
036-14820-10
036-15220-00
036-14820-10
036-15180-10
036-14220-00
036-12680-00
036-12180-00
036-13120-00
036-14330-10
036-12100-10
036-12100-10
036-13390-10
036-14100-10
036-16150-00
036-15470-10
036-12100-10
036-14470-10
036-14470-10
036-14470-10
036-14470-10
036-14470-10
036-15470-10
036-16150-00
036-14470-10
036-14470-10
036-15470-10
036-15470-10
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-14220-00
036-13470-00
036-13470-00
036-14470-10
036-13470-00
036-13470-00
036-14470-10
036-14470-10
036-14470-10
036-10000-00
036-16150-00
036-16150-00
036-16150-00
036-16100-10
036-16100-10
Description
RES M/F SMD 0805 100E 1%
RES M/F SMD 0805 10E 1%
RES M/F SMD 0805 0E 0.125W
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 2K7 1%
RES M/F SMD 0805 27K 1%
RES M/F SMD 0805 27K 1%
RES M/F SMD 0805 39K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 2K7 1%
RES M/F SMD 0805 39K 1%
RES M/F SMD 0805 100E 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 470E 5%
RES M/F SMD 0805 470E 5%
RES M/F SMD 0805 470E 5%
RES M/F SMD 0805 150E 1%
RES M/F SMD 0805 150E 1%
RES M/F SMD 0805 22E 5%
RES M/F SMD 0805 22E 5%
RES M/F SMD 0805 22E 5%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 22E 5%
RES M/F SMD 0805 22E 5%
RES M/F SMD 0805 1M 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 1K2 5%
RES M/F SMD 0805 330E 5%
RES M/F SMD 0805 180E 5%
RES M/F SMD 0805 100E 1%
RES M/F SMD 0805 100E 1%
RES M/F SMD 0805 680E 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 680E 1%
RES M/F SMD 0805 180E 5%
RES M/F SMD 0805 8K2 1%
RES M/F SMD 0805 22K 5%
RES M/F SMD 0805 8K2 1%
RES M/F SMD 0805 18K 1%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 68E 5%
RES M/F SMD 0805 18E 5%
RES M/F SMD 0805 120E 5%
RES M/F SMD 0805 3K3 1%
RES M/F SMD 0805 10E 1%
RES M/F SMD 0805 10E 1%
RES M/F SMD 0805 390E 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 150K 5%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 10E 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 150K 5%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 470E 5%
RES M/F SMD 0805 470E 5%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 470E 5%
RES M/F SMD 0805 470E 5%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 0E 0.125W
RES M/F SMD 0805 150K 5%
RES M/F SMD 0805 150K 5%
RES M/F SMD 0805 150K 5%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 100K 1%
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01686-03
T854 PCB Information
M8SL2-00-002-812
Ref
Var
IPN
Description
R871
R872
R873
R874
R875
R876
R877
R879
R880
R882
R325A
R340C
%RV210
RV220
RV320
RV330
RV805
036-15470-10
036-14470-10
036-15330-10
036-14470-10
036-15470-10
036-14470-10
036-14470-10
036-15100-10
036-14470-10
036-13470-00
036-14100-10
036-13220-10
040-05100-23
042-05500-05
042-05100-05
042-06500-05
042-05200-05
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 33K 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 470E 5%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 220E 1%
POT 10K LOG PCB 15MM SSHAFT
RES PRE SMD 50K CER 4MM SQ
RES PRE SMD 10K CER 4MM SQ
RES PRE SMD 500K CER 4MM SQ
RES PRE SMD 20K CER 4MM SQ
SK200
SK205
SK310
SK410
SK501
SK502
SK503
SK504
SK505
SK513
SK522
SK531
SK532
SK533
SK534
SK535
SK536
SK805
SK810
SW230
240-10000-05
240-02020-05
240-02100-44
240-02100-44
240-04021-77
240-04021-77
240-04021-77
240-04021-77
240-04021-77
240-04021-77
240-04021-77
240-04021-77
240-04021-77
240-04021-77
240-04021-77
240-04021-77
240-04021-77
240-10000-07
240-04020-42
232-00010-26
CONN SMD 8W 2R SKT M/MATCH
SKT STEREO PH JACK PCB MTG
SKT COAX MINI ANGLED PCB MTG
SKT COAX MINI ANGLED PCB MTG
SKT 64W JACK 1.3 PCB MTG
SKT 64W JACK 1.3 PCB MTG
SKT 64W JACK 1.3 PCB MTG
SKT 64W JACK 1.3 PCB MTG
SKT 64W JACK 1.3 PCB MTG
SKT 64W JACK 1.3 PCB MTG
SKT 64W JACK 1.3 PCB MTG
SKT 64W JACK 1.3 PCB MTG
SKT 64W JACK 1.3 PCB MTG
SKT 64W JACK 1.3 PCB MTG
SKT 64W JACK 1.3 PCB MTG
SKT 64W JACK 1.3 PCB MTG
SKT 64W JACK 1.3 PCB MTG
CONN SMD 16W 2R SKT M/MATCH
SKT 44 PIN SMD PLCC
SW PUSH SPDT RA PCB MTG
%T210B
T610
054-00010-18
050-15119-52
XFMR LINE SMD 600 OHM P2781
COIL SMD 680UH XFMR 5119-T052
Ref
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Var
IPN
Description
C6.2.9
IPN 220-01686-03
C6.2.10
T854 PCB Information
M8SL2-00-002-812
T854 Mechanical and Miscellaneous Parts
IPN
012-04100-05
070-01002-00
201-00030-02
219-02605-00
219-02638-00
220-01686-03
232-00020-26
240-00026-32
240-04020-62
258-00010-08
302-05204-00
302-05258-00
302-05259-00
303-11226-00
303-50074-00
303-50078-00
308-13142-00
349-00020-09
349-00020-36
349-00020-49
349-20430-00
352-00010-08
352-00010-35
353-00010-13
356-00010-01
362-00010-23
369-00010-14
400-00020-07
Legend Description
1
2
3
4
5
6
8
9
10
IPN
Legend Description
CAP F/THRU 1N SUPN FLTR SMTG
DRNG STD AUX T800 SII
WIRE T/C 7/0.2MM PVC RED
COAX 120MM 2 MINI PIN CRIMP
SII AUX DRNG LOOM ASSY
PCB T854 25W CONTINUOUS
SW BUTT 232-00010-26
PLG 32W 1ROW PCB MTG
SKT 2W 0.1” RECEP SHORTING LNK
FAN 12V 119 X 119 X 25 PAPST
BRKT A3M2314 F/THRU MTG T859
BRKT FAN INTAKE 25W T800 PA
BRKT FAN MTG 25W CONN T800 PA
CHASS 25W CONN T800 PA
CLIP SPRING XSTR CLAMP T857
CLIP 0.1 SPRING WIRE CBL CLAMP
HSINK T800 25U CONTINUOUS
SCRW 4-40*3/8” T/T P/P BLK
SCRW M3*8MM T/T P/T BLK
SCRW M4*35MM T/T P/P BZ
SCRW M4*12MM T/T P/T BLK
NUT M3 COLD FORM HEX S/T BZ
NUT 8-32 UNC HEX XSTR MTG
WSHR M3 S/PROOF INT BZ
TAG SOLDER 3MM SHORT M6132/3.2
INSULR GSK SIL CLIP MTG TO-220
TIE CBL NYLON 100*2.6MM
SLEEVING 2MM SIL RUBBER
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01686-03
M8SL2-00-002-812
T854 PCB Information
T854 Mechanical Assembly
220-01686-03
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C6.2.11
IPN 220-01686-03
C6.2.12
T854 PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01686-03
T854 PCB Information
M8SL2-00-002-812
C6.2.13
T854 Grid Reference Index (IPN 220-01686-03)
How To Use This Grid Reference Index
The first digit in the PCB layout reference is a “1” or “2”, indicating the top or bottom side layout respectively, and the last two characters give the location of the component on that diagram.
The first digit in the circuit diagram reference is the sheet number, and the last two characters give the location of the component on
that sheet.
Device
PCB
Circuit
Device
PCB
Circuit
Device
PCB
Circuit
Device
PCB
Circuit
C100
C101
C102
C103
C201
C202
%C203A
%C203B
%C204
%C205
C207
C209
C210
C211
C213
C215
C217
C219
C221
C223
C225
C227
C229
C230
C232
C233
C235
C237
C239
C240
C241
C242
C243
C245
C247
C249
C251
C253
C255
C257
C259
C260
C261
C263
%C265
C267
&C269
&C271
C273
C275
C277
C279
C281
C283
C285
C287
&C289
C291
C293
1:P5
1:P5
1:P4
1:P5
1:C1
1:C1
1:C1
1:A2
1:B3
1:A3
1:C7
1:C6
1:C7
1:B7
1:A6
1:A6
1:B6
1:B6
1:C5
1:D4
1:B3
1:B4
1:B4
1:B4
1:B4
1:B3
1:B5
1:B4
1:B4
1:D2
1:B4
1:B4
1:B4
1:C5
1:C5
1:D4
1:C4
1:D3
1:D3
1:D4
1:C7
1:C8
1:C7
1:D6
1:D8
1:C8
1:C8
1:C8
1:C8
1:C3
1:B4
1:B5
1:B5
1:B5
1:C7
1:C6
1:C8
1:C7
1:D7
1-A0
1-A0
1-C1
1-B0
2-B3
2-C3
2-B2
2-D2
2-F3
2-E3
2-G0
2-T0
2-J0
2-H3
2-C5
2-D5
2-C5
2-C5
2-L8
2-J6
2-N7
2-O6
2-O6
2-J0
2-P6
2-P7
2-N5
2-N5
2-O4
2-T6
2-P5
2-P5
2-R5
2-B5
2-B5
2-E6
2-C9
2-E8
2-E8
2-C8
2-J2
2-I0
2-K2
2-M2
2-M1
2-O2
2-O2
2-P2
2-P2
2-E7
2-I4
2-I4
2-I3
2-J2
2-K2
2-L3
2-Q2
2-T2
2-T2
%C294
%C295
C300
C301
C302
C303
C305
C306
C307
C311
C313
C315
C316
C319
C325
C327
C330A
C330B
C331
C332
C333
C334
C335
%C336
C337
C338
C339
C340A
C340B
C341
C342
C343
C344
C345
C346
C347
C348
C349
C350A
C350B
C351
C352
C353
C354
C355
C356
C361
C362
C363
C364
C365
C366
C367
C368
C369
C370A
C370B
C370C
C371
1:C7
1:C7
1:F8
1:F9
1:E8
1:E8
1:F7
1:F7
1:F7
1:E7
1:E9
1:E8
1:E9
1:E8
1:E7
1:F7
1:E8
1:E8
1:F3
1:F8
1:F3
1:F7
1:F7
1:F7
1:E6
1:E7
1:E7
1:E8
1:F8
1:E7
1:E7
1:F3
1:F3
1:F3
1:F3
1:F3
1:F3
1:F3
1:F7
1:F7
1:F4
1:F4
1:F4
1:F4
1:F4
1:F3
1:E4
1:E3
1:E4
1:E4
1:E4
1:E4
1:E4
1:E5
1:E6
1:F8
1:F8
1:F8
1:F8
2-U2
2-U2
3-B8
3-B7
3-A6
3-A6
3-E5
3-F7
3-F7
3-B3
3-C8
3-C7
3-E9
3-E8
3-D4
3-C4
3-G8
3-G8
3-B2
3-B4
3-B0
3-C4
3-F5
3-F5
3-J2
3-G3
3-G3
3-L8
3-L8
3-H3
3-H3
3-J3
3-J4
3-K4
3-K4
3-L4
3-M4
3-M4
3-J8
3-J8
3-E1
3-F0
3-G0
3-G0
3-G1
3-H2
3-K1
3-J1
3-K1
3-L1
3-L1
3-M1
3-L1
3-M1
3-P1
3-K7
3-L7
3-L7
3-N7
C372
C373
C374
C375
C376
C377
C378
C380
C381
C382
C383
C384
C385
C386
C387
C388
C389
C390
C391
C392
C393
C394
C405
#C410
C415
C418
C419
C420
C421
C430
C435
C438
#C439
#C440
#C445
C450
C455
#C460
#C465
C470
#C480
C481
C485
C490
C493
C496
C499
C503
C504
C505
C507
C508
C509
C510
C511
C512
C513
C514
C515
1:F9
1:F9
1:E6
1:E6
1:E6
1:E6
1:F6
1:F6
1:E3
1:E3
1:F3
1:F5
1:F3
1:F5
1:E4
1:F5
1:F5
1:F8
1:F8
1:F5
1:F5
1:F5
1:H8
1:J8
1:J7
1:G7
1:G8
1:G8
1:G8
1:J7
1:M7
1:K8
1:J8
1:K8
1:K7
1:L7
1:M7
1:L7
1:L8
1:L8
1:M8
1:K8
1:M9
1:M9
1:M8
1:N7
1:N7
1:K6
1:K6
1:K6
1:K6
1:K6
1:K6
1:J5
1:J5
1:J5
1:J5
1:J5
1:K5
3-P7
3-P7
3-P1
3-P1
3-Q1
3-Q1
3-R1
3-R1
3-M2
3-M2
3-B2
3-N3
3-C0
3-P3
3-H5
3-K5
3-K6
3-H7
3-H7
3-P2
3-P2
3-J5
4-D4
4-E3
4-F3
4-C6
4-C6
4-D6
4-E6
4-H6
4-J6
4-G4
4-F5
4-H4
4-J4
4-K5
4-L5
4-K4
4-L4
4-M4
4-N4
4-P7
4-M5
4-N5
4-N4
4-P3
4-Q3
5-L9
5-M6
5-N7
5-B5
5-C0
5-D0
5-D1
5-D0
5-D1
5-H1
5-J1
5-H0
C516
C517
C518
C519
C525
C530
C535
C536
C537
C605
C607
C608
C610A
C610B
C611A
C611B
C623
C625
C626
C628
C630
C631A
C634
C636
C638
C640
C655
C660
C665
C670
C673
C677
C681
C684
C687
C690
C693
C700
C703
C706
C708
C709
C710
C711
C712
%C713
C714
C719
C720
C722
C724
C725
C726
C727
C729
%C733
C735
C736
C740A
1:H5
1:H5
1:H5
1:H5
1:K4
1:K5
1:K5
1:K5
1:K5
1:L6
1:L6
1:L6
1:M5
1:L5
1:M6
1:M5
1:N6
1:M6
1:M6
1:M6
1:M5
1:N5
1:N5
1:M5
1:M5
1:M5
1:M4
1:L5
1:L5
1:L5
1:L5
1:L6
1:L6
1:L6
1:L6
1:L6
1:L6
1:K4
1:J3
1:J2
1:J2
1:K4
1:J3
1:J3
1:H2
1:H2
1:J2
1:J4
1:J4
1:J4
1:J4
1:J3
1:J4
1:J3
1:J3
1:H2
1:J2
1:J2
1:H2
5-H4
5-H4
5-J3
5-J5
5-K5
5-L4
5-L2
5-N2
5-N2
6-C8
6-D8
6-D8
6-F8
6-F8
6-H8
6-H8
6-P7
6-Q6
6-Q6
6-Q6
6-J5
6-L6
6-L5
6-M5
6-N5
6-R4
6-C1
6-Q1
6-P1
6-N1
6-K2
6-K1
6-J2
6-H2
6-J1
6-J1
6-H1
7-A8
7-B7
7-A5
7-D9
7-E9
7-D8
7-B7
7-D7
7-E6
7-E8
7-F8
7-F8
7-G8
7-H6
7-J6
7-J6
7-K8
7-M8
7-E3
7-A1
7-B1
7-B4
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01686-03
C6.2.14
T854 PCB Information
M8SL2-00-002-812
Device
PCB
Circuit
Device
PCB
Circuit
Device
PCB
Circuit
Device
PCB
Circuit
C740B
C741A
C741B
C742A
C742B
C743
C745
C750
C757
C759
C761
C762
C764
C765
C767
C769
C770
C772
C774
C776
C782
C784
C785
C786
C788
C790
C792
C810
C812
C813
C822
C823
C824
C826
C827
C828
C830
C838
C841
C844
C880
#C900
#C910
#C920
C930
#C940
#C950
C960
#C970
#C980
#C990
CTCSSM
#CV475
1:H2
1:H2
1:G2
1:H2
1:H3
1:H2
1:G3
1:G4
1:G4
1:G4
1:G3
1:G3
1:H3
1:G3
1:H3
1:H4
1:H4
1:G4
1:H4
1:H4
1:G2
1:G2
1:G3
1:G2
1:G3
1:G3
1:G4
1:L3
1:L2
1:K2
1:N2
1:M3
1:M2
1:N3
1:N3
1:N3
1:N3
1:N4
1:N2
1:M2
1:M2
1:N8
1:P8
1:P8
2:P8
1:P7
1:P7
2:P7
1:P7
1:P6
1:P6
1:D8
1:M8
7-B3
7-C4
7-C3
7-D4
7-D3
7-B1
7-D1
7-K0
7-F4
7-F5
7-K4
7-K4
7-K2
7-K2
7-L3
7-M4
7-N4
7-M2
7-N2
7-N2
7-P1
7-Q1
7-P1
7-R1
7-P0
7-Q0
7-R1
8-H8
8-D5
8-G5
8-Q1
8-Q1
8-Q1
8-P0
8-P1
8-P0
8-J0
8-N0
8-K2
8-J2
8-K3
9-C6
9-D6
9-E6
9-E7
9-F6
9-G6
9-G7
9-H6
9-J6
9-K6
2-M1
4-M4
D420
D420
D440
D440
D510
D510
D610
D610
D620
D620
D630
D630
D635A
D640
D640
D645
D710
D710
D720
D720
D730
D732
D810
1:M8
1:M8
1:N7
1:N7
1:K6
1:K6
1:N6
1:N6
1:N4
1:N4
1:M5
1:M5
1:M5
1:L5
1:L5
1:M5
1:J3
1:J3
1:J3
1:J3
1:H3
1:H3
1:M2
4-Q5
4-N5
4-P4
4-P4
5-K9
5-K8
6-N7
6-N7
6-B1
6-B1
6-E2
6-E2
6-F2
6-N1
6-N1
6-R4
7-L8
7-L8
7-N8
7-N8
7-J1
7-K2
8-B2
IC730
IC740
IC750
IC750
IC750
IC820
IC830
IC830
IC830
IC830
IC830
1:J4
1:H2
1:H4
1:H4
1:H4
1:L4
1:N3
1:N3
1:N3
1:N3
1:N3
7-G7
7-D1
7-M3
7-G5
7-K0
8-K5
8-L0
8-H0
8-L0
8-Q0
8-L1
D111
%D205
%D210
D211
D212
D220
D220
D230
D240
D240
D245
D245
D250
D250
D260
D260
D270
D270
D340
D360
D380
D381
1:P4
1:B2
1:B2
1:B7
1:B7
1:B4
1:B4
1:B7
1:D4
1:D4
1:D4
1:D4
1:D3
1:D3
1:C2
1:C2
1:C2
1:C2
1:F4
1:F4
1:F4
1:F5
1-R1
2-D3
2-D3
2-U6
2-T5
2-R5
2-R7
2-U5
2-E7
2-E7
2-H7
2-H7
2-E8
2-E8
2-C8
2-B8
2-C7
2-B7
3-F1
3-F1
3-G1
3-J5
2-J0
2-U2
2-G0
2-K1
2-K2
2-T2
2-T0
2-L3
2-I0
2-I4
2-I2
2-Q5
2-O5
2-J5
2-D7
2-S2
2-H0
2-T3
2-P2
2-N2
3-D8
3-D7
3-H8
3-B3
3-M8
3-M8
3-F6
3-C5
3-K8
3-M6
6-G8
6-K5
6-M5
6-Q4
6-E1
6-C4
7-A8
7-D8
7-C6
7-D7
7-D5
7-E6
7-C5
7-D6
7-N6
7-J0
7-M7
7-L7
7-K7
7-E8
7-J0
7-H8
3-B5
3-L8
3-K2
3-J1
3-G2
3-L1
3-M1
3-P1
3-Q1
3-Q1
3-P2
3-P3
3-H7
3-H4
3-B0
4-C3
4-D4
4-D3
4-F4
4-D6
4-C6
4-G6
4-F6
4-G4
4-G4
4-G3
4-J4
4-J6
4-J5
4-K4
4-L4
4-N6
4-Q7
4-Q4
5-C1
5-M3
5-J4
6-D8
7-Q1
9-C8
9-E8
9-G8
9-J8
2-E3
2-V5
2-L1
2-L1
2-L0
2-L0
2-L0
2-Q2
2-S3
2-R2
2-S3
2-U2
2-R1
2-S1
8-A2
8-B6
8-J8
8-J8
8-J8
8-J7
8-J7
1-E1
2-K5
2-K4
1:C7
1:C7
1:C7
1:C7
1:C7
1:C6
1:C6
1:C6
1:B4
1:B4
1:B4
1:B4
1:B4
1:C4
1:D3
1:C8
1:C8
1:C8
1:C8
1:C8
1:E8
1:E8
1:E8
1:F8
1:F8
1:F8
1:F7
1:F7
1:F7
1:F9
1:L5
1:N5
1:M5
1:M5
1:M5
1:L5
1:K3
1:J2
1:J2
1:J2
1:J2
1:J2
1:J2
1:J2
1:H3
1:H3
1:H3
1:H3
1:H3
1:H3
1:H3
1:J4
1:F9
1:F8
1:E4
1:E3
1:F4
1:E4
1:E5
1:E6
1:E6
1:E7
1:F6
1:F6
1:F8
1:E7
1:F3
1:H8
1:H7
1:H7
1:H8
1:G8
1:G7
1:J7
1:J7
1:K8
1:K7
1:J7
1:K8
1:M7
1:L7
1:L8
1:L8
1:M9
1:K8
1:N7
1:K6
1:K5
1:H5
1:L6
1:G3
1:P8
1:P8
1:P7
1:P6
1:B2
1:B7
1:C4
1:C2
1:B8
1:B8
1:B1
1:C9
1:C9
1:C9
1:C9
1:C7
1:D5
1:D5
1:M2
1:L3
1:L4
1:L4
1:L4
1:L4
1:L4
1:P3
1:C4
1:C3
IC210
IC210
IC210
IC210
IC210
IC220
IC220
IC220
IC230
IC230
IC230
IC230
IC230
IC240
IC250
IC260
IC260
IC260
IC260
IC260
IC330
IC330
IC330
IC340
IC340
IC340
IC350
IC350
IC350
IC370
IC610
IC630
IC640
IC640
IC640
IC650
=IC700
IC710
IC710
IC710
IC710
IC710
IC710
IC710
IC720
IC720
IC720
IC720
IC720
IC720
IC720
IC730
L302
L303
L304
L305
L320
L321
L322
L323
L324
L325
L326
L327
L328
L333
L334
L405
L410
L415
L418
L420
L425
L430
L435
L440
L445
L450
L455
L460
L465
L470
L475
L480
L481
L485
L520
L521
L522
L601
L701
#L910
#L920
#L930
#L940
LINK1
P251
P255
P257
P259
P261
P263
P267
P269
P271
P273
P275
P290
P291
P805
P810
P820
P825
P830
P835
P840
PL100
PL201
PL202
P100
P150
P160
P170
P204
P208
P215
P217
P219
P225
P230
P231
P233
P235
P237
P239
P240
P245
P249
1:Q6
1:P2
1:P2
1:P2
1:D1
1:D1
1:D4
1:D4
1:D2
1:D2
1:B5
1:D7
1:C1
1:C1
1:B7
1:B6
1:B7
1:B8
1:B7
1-R8
1-Q4
1-Q4
1-Q3
2-A3
2-A3
2-A7
2-A7
2-A8
2-A7
2-M9
2-M9
2-F3
2-F3
2-G3
2-M9
2-M9
2-S5
2-V5
Q100
Q101
Q102
Q210
Q211
Q220
Q230
Q240
Q250
Q260
Q270
Q320
Q325
Q326
Q330
Q331
Q331
Q332
Q333
Q334
Q335
Q336
Q337
Q340
Q341
Q345
Q410
Q420
Q505
Q510
Q520
Q530
Q540
Q550
Q610
Q620
Q630
Q660
Q670
Q710
Q720
Q730
Q740
Q750
Q760
Q770
Q775
Q780
Q785
Q790
Q795
Q810
1:N4
1:N4
1:P4
1:B6
1:P2
1:B4
1:B4
1:B7
1:B7
1:C4
1:D2
1:E7
1:E7
1:E7
1:E8
1:F5
1:F5
1:F6
1:F8
1:F5
1:F3
1:E5
1:E3
1:F3
1:E3
1:F3
1:J8
1:K8
1:J6
1:J5
1:H5
1:K5
1:K5
1:K5
1:L6
1:N6
1:M6
1:L5
1:L6
1:J3
1:J4
1:J3
1:J3
1:G4
1:H3
1:H3
1:H3
1:H3
1:H3
1:H3
1:G3
1:M2
1-B0
1-B0
1-C1
2-D5
2-B3
2-O6
2-P7
2-U6
2-U5
2-C9
2-D7
3-D4
3-F3
3-G3
3-F4
3-J6
3-K6
3-J6
3-H6
3-J5
3-K4
3-N1
3-J1
3-L4
3-K3
3-M3
4-F4
4-J4
5-K8
5-E1
5-J4
5-H1
5-L3
5-L4
6-D8
6-P6
6-N5
6-M1
6-K1
7-K8
7-K8
7-M8
7-M8
7-F4
7-J3
7-J1
7-K3
7-K3
7-K2
7-M3
7-P1
8-C3
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01686-03
T854 PCB Information
M8SL2-00-002-812
C6.2.15
Device
PCB
Circuit
Device
PCB
Circuit
Device
PCB
Circuit
Device
PCB
Circuit
Q820
Q830
Q840
Q850
Q860
1:L2
1:L2
1:L2
1:M2
1:L4
8-C5
8-C6
8-E5
8-E5
8-B3
R100
R101
R102
R103
%R150
R160
%R200
%R200A
%R201
R202
%R203
%R203A
%R203B
%R203C
%R203D
%R203E
R204
R205
R206
R207
R208
R209
R210
%R211
R212
R213
R214
R215
R216
R217
R218
R219
%R220
R221
%R222
R223
R224
R225
R226
R227
%R228
R229
R230
R231
R232
R233
%R234
R235
R236
R237
R238
R239
R240
R241
R242
R243
R244
R245
%R246
R247
R248
R249
R251
R253
R254
R255
R256
R257
R258
R259
1:P5
1:P4
1:P4
1:N3
1:P2
1:P2
1:B2
1:B2
1:B3
1:C1
1:B3
1:B3
1:C3
1:D1
1:D1
1:A2
1:C7
1:C7
1:B6
1:B6
1:B6
1:B6
1:B6
1:B2
1:C4
1:D4
1:D4
1:C4
1:B4
1:B4
1:B3
1:B3
1:B2
1:B7
1:B7
1:B4
1:B4
1:B4
1:B4
1:B4
1:A2
1:A4
1:B4
1:B4
1:B4
1:B4
1:B7
1:B4
1:C5
1:B7
1:B7
1:B8
1:D2
1:B8
1:B7
1:D2
1:C6
1:D4
1:D9
1:C3
1:C3
1:D4
1:C4
1:C7
1:C6
1:C7
1:D8
1:D8
1:D8
1:D8
1-B1
1-C1
1-B0
1-C0
1-R4
1-R3
2-C3
2-C4
2-E3
2-F3
2-C2
2-C2
2-B2
2-B3
2-B3
2-F3
2-F0
2-H0
2-D6
2-D5
2-C5
2-C5
2-D5
2-E3
2-I6
2-L8
2-L8
2-J6
2-N7
2-P7
2-P7
2-Q7
2-E3
2-U6
2-H3
2-N5
2-N5
2-O5
2-O4
2-O4
2-E3
2-P6
2-P6
2-P5
2-P5
2-P5
2-H3
2-Q5
2-J5
2-U6
2-U6
2-T5
2-B8
2-T5
2-T5
2-B7
2-B5
2-J6
2-P1
2-B9
2-C9
2-C9
2-K6
2-K2
2-K2
2-L1
2-M2
2-M1
2-M1
2-M1
R260
R262
R263
&R264
&R265
&R266
R267
R268
R269
R270
R271
R272
R273
R274
R275
R276
%R276A
R277
R278
R279
R280
R282
R283
R284
R285
R286
R287
R288
R289
&R290
%R291
R292
R293
R294
R295
R296
R297
%R298
R299
R300
R301
R302
R303
R304
R305
R306
R307
%R308
R309
%R310
R311
R312
R313
R316
R319
R320
R323
R324
R325
R325A
R326
R327
R328
R329
R330
R331
R332
R334
R336
R337
R338
R339
R340
R340C
R341
R342
1:C8
1:D8
1:D8
1:C8
1:C8
1:C8
1:C8
1:C2
1:C2
1:C3
1:C3
1:C4
1:B4
1:B5
1:B5
1:D4
1:D2
1:B5
1:B5
1:B5
1:B5
1:D7
1:C7
1:C7
1:C9
1:C7
1:C8
1:C6
1:C9
1:C8
1:C9
1:C9
1:C9
1:D8
1:D8
1:D6
1:C7
1:C7
1:C6
1:F8
1:E9
1:F9
1:E8
1:E8
1:E8
1:E7
1:E8
1:E8
1:F8
1:E8
1:E8
1:E7
1:E7
1:E8
1:F7
1:F6
1:E3
1:F7
1:F8
1:F6
1:E5
1:E4
1:E3
1:E3
1:E8
1:F4
1:F4
1:F3
1:E3
1:F5
1:F9
1:E7
1:E7
1:F8
1:F7
1:E5
2-M2
2-N2
2-N2
2-O2
2-O2
2-P2
2-Q2
2-C7
2-C8
2-D8
2-D7
2-I4
2-I5
2-I4
2-J5
2-F7
2-B4
2-I3
2-I2
2-J2
2-J2
2-J3
2-J3
2-K2
2-R2
2-K3
2-S2
2-L3
2-R2
2-Q2
2-R2
2-S3
2-S3
2-T3
2-U3
2-T2
2-T2
2-U2
2-V2
3-B9
3-C8
3-B7
3-C7
3-E9
3-E7
3-B6
3-B6
3-E9
3-F7
3-E8
3-B3
3-B3
3-B3
3-E6
3-E5
3-J5
3-J1
3-F5
3-G5
3-H5
3-M1
3-H1
3-H1
3-J2
3-H9
3-H1
3-H1
3-B1
3-M2
3-Q2
3-B5
3-B5
3-B4
3-M9
3-D4
3-N3
R343
R344
R345
R346
R347
R348
R349
R350
R351
R352
R353
R354
R355
R356
R357
R359
R360
R361
R362
R363
R364
R365
R366
R367
R368
R369
R370
R371
R372
R373
R374
R376
R378
R379
R380
R381
R382
R383
R384
R387
#R410
#R420
#R430
#R440
R450
#R451
R460
R470
R471
R472
R473
R480
R481
R490
R501
R502
R503
R504
R505
R510
R513
R514
R515
#R517
#R518
#R519
R520
R523
R525
R530
R535
R540
R545
%R550
%R551
R555
1:F7
1:F5
1:F5
1:F5
1:F7
1:E3
1:E8
1:F8
1:E7
1:F3
1:E7
1:F3
1:E7
1:D7
1:E8
1:E7
1:F3
1:E7
1:F3
1:F3
1:E3
1:F3
1:E8
1:F3
1:F4
1:F3
1:F8
1:E8
1:E8
1:E8
1:E9
1:F3
1:F6
1:F5
1:F8
1:F4
1:F4
1:F4
1:F4
1:E4
1:H8
1:H8
1:H8
1:H8
1:H7
1:J8
1:M8
1:N8
1:N8
1:N8
1:N8
1:M8
1:K8
1:N7
1:J6
1:J6
1:J6
1:K6
1:K6
1:K6
1:J5
1:K6
1:H6
1:G5
1:G5
1:G5
1:K6
1:J5
1:J5
1:J5
1:J5
1:H5
1:K5
1:K5
1:K5
1:K5
3-D5
3-N3
3-K5
3-K6
3-E3
3-H5
3-F3
3-K9
3-H2
3-B2
3-G3
3-C2
3-F3
3-G3
3-F4
3-H3
3-J3
3-H3
3-J4
3-J4
3-K3
3-J3
3-F4
3-K4
3-L3
3-L4
3-K8
3-N7
3-N7
3-N7
3-N6
3-L2
3-K7
3-J7
3-J7
3-E1
3-F1
3-F0
3-G1
3-H1
4-B4
4-B3
4-B4
4-C3
4-D3
4-F5
4-P5
4-P5
4-Q5
4-Q5
4-R6
4-N4
4-P7
4-P3
5-J8
5-J8
5-K8
5-K9
5-L8
5-L8
5-G1
5-N6
5-H5
5-F2
5-F3
5-G2
5-C1
5-D1
5-D1
5-E1
5-F1
5-K4
5-H0
5-K2
5-L2
5-L3
R560
R609
R613
R615
R617
R619
R621
R625
R629
R633
R637
R638
R640
R641
R645
R649
R651
R652
R653
R657
R661
R665
R669
R673
R677
R681
R685
R689
R693
R696
R701
R702
R703
%R704
=R705
R706
R707
R708
R709
R710
R711
R712
R713
%R714
%R715
%R716
R717
R718
R719
R720
R721
R722
R723
R725
%R726
R727
R728
R730
R731
R732
R742
R743
R744
R746
R747
R748
R749
R750
R752
R753
R754
R756
R757
R758
R759
R760
1:K4
1:L6
1:L6
1:M5
1:M5
1:N6
1:N6
1:N6
1:M6
1:M5
1:M5
1:M5
1:M5
1:N5
1:N5
1:M5
1:L4
1:L4
1:M5
1:M5
1:M5
1:M5
1:M5
1:M5
1:M4
1:L5
1:L5
1:L6
1:L5
1:L5
1:K4
1:K4
1:K4
1:J4
1:K3
1:J3
1:H3
1:J3
1:J3
1:H2
1:J2
1:K4
1:J4
1:J4
1:K4
1:J4
1:H4
1:J4
1:J3
1:H3
1:J3
1:J4
1:J3
1:J3
1:H3
1:J3
1:J3
1:K2
1:K2
1:K2
1:H2
1:H2
1:G2
1:H3
1:H3
1:J2
1:J2
1:H4
1:G4
1:G4
1:G3
1:G3
1:G4
1:H3
1:H3
1:H3
5-L5
6-B8
6-C8
6-F9
6-H8
6-P7
6-P7
6-P7
6-N6
6-P5
6-J6
6-J6
6-Q4
6-K5
6-L5
6-M5
6-B4
6-B4
6-P5
6-C1
6-D2
6-D1
6-D2
6-D0
6-F2
6-P1
6-L2
6-J3
6-N1
6-N0
7-A9
7-B9
7-B8
7-G8
7-A7
7-B6
7-C7
7-B6
7-D9
7-D7
7-B5
7-E9
7-F8
7-F8
7-H6
7-F7
7-H7
7-H7
7-J7
7-K7
7-K9
7-K8
7-L7
7-M7
7-M6
7-M9
7-M8
7-A2
7-A2
7-A2
7-C4
7-C4
7-D4
7-D4
7-D4
7-A1
7-B1
7-K0
7-F4
7-F4
7-F4
7-F5
7-F5
7-J4
7-J4
7-K4
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01686-03
C6.2.16
T854 PCB Information
M8SL2-00-002-812
Device
PCB
Circuit
Device
PCB
Circuit
Device
PCB
Circuit
R762
R763
R765
R766
R767
R769
R771
R772
R774
R775
R777
R780
R782
R784
R785
R786
R787
R790
R791
R801
R802
R808
R809
R810
R811
R812
R813
R815
R816
R818
R819
R821
R822
R824
R825
R826
R827
R828
R829
R830
R831
R832
R833
R835
R836
R837
R840
R841
R842
R843
R845
R847
R848
R849
R850
R853
R854
R855
%R856
%R857
R859
R861
R863
R865
R867
R871
R872
R873
R874
R875
R876
R877
R879
R880
R881
R882
1:H3
1:H3
1:H3
1:G3
1:H3
1:H3
1:H4
1:G4
1:H4
1:H4
1:H4
1:G2
1:G3
1:G3
1:G3
1:G2
1:G2
1:G3
1:G3
1:M2
1:M2
1:M2
1:L2
1:L3
1:L2
1:L2
1:L2
1:L2
1:L2
1:M2
1:M2
1:L4
1:M4
1:L4
1:L4
1:L4
1:L4
1:L4
1:L4
1:L3
1:L3
1:L3
1:L3
1:L3
1:L3
1:L3
1:L3
1:L3
1:L3
1:L3
1:M4
1:L2
1:L2
1:L2
1:K2
1:M4
1:M4
1:M2
1:M4
1:M4
1:N2
1:N2
1:N3
1:N4
1:N3
1:N3
1:M4
1:N3
1:N3
1:N3
1:N3
1:N2
1:N2
1:M4
1:M4
1:M2
7-L4
7-L4
7-J2
7-K3
7-K2
7-L3
7-M3
7-M2
7-M3
7-N2
7-Q2
7-P1
7-P1
7-P1
7-Q1
7-Q1
7-R2
7-P0
7-Q0
8-C3
8-C2
8-B5
8-C6
8-C6
8-D6
8-C5
8-C5
8-D5
8-D5
8-E5
8-E4
8-B3
8-C3
8-J8
8-J8
8-J8
8-J7
8-J7
8-P9
8-P9
8-P9
8-P8
8-P8
8-P8
8-P8
8-P7
8-M7
8-M7
8-P6
8-P6
8-R4
8-R3
8-K3
8-R3
8-R3
8-L6
8-L6
8-Q0
8-R2
8-Q2
8-P1
8-P1
8-N1
8-N0
8-N1
8-M2
8-L1
8-M1
8-L0
8-M0
8-L0
8-K2
8-J2
8-J6
8-L6
8-K3
%RV210
RV220
RV320
RV330
RV805
1:B7
1:A4
1:E8
1:F7
1:N4
2-G3
2-P6
3-F3
3-D5
8-N1
TP604
TP607
TP710
TP715
1:L4
1:L5
1:G4
1:J2
6-L6
6-J9
7-G5
7-B5
SK200
SK205
SK310
SK410
SK501
SK502
SK503
SK504
SK505
SK513
SK522
SK531
SK532
SK533
SK534
SK535
SK536
=SK710
SK805
SK805
SK805
SK805
SK805
SK805
SK805
SK805
SK805
SK805
SK805
SK805
SK805
SK805
SK805
SK805
SK810
SL501
SL810
SW230
1:C5
1:B5
1:F6
1:G8
1:G6
1:G6
1:G6
1:G5
1:G5
1:H5
1:H6
1:K6
1:K5
1:K5
1:K5
1:K5
1:P5
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:K3
1:M3
1:J4
1:M2
1:B8
2-R1
2-A5
3-R1
4-A4
5-E7
5-E6
5-E5
5-E4
5-E3
5-H3
5-L6
5-P7
5-P6
5-P5
5-P4
5-P3
1-A0
7-A7
8-Q5
8-Q9
8-Q9
8-Q9
8-Q6
8-Q6
8-Q6
8-Q6
8-Q7
8-Q7
8-Q7
8-Q7
8-Q8
8-Q8
8-Q8
8-Q8
8-G5
5-G1
8-B3
2-B9
%T210
%T210A
%T210B
T610
T85410
T85413
T85415
T85416
T85420
T85423
T85425
T85426
T85430
T85433
T85435
T85436
TP206
TP302
TP305
TP306
TP307
TP310
TP312
TP313
TP314
TP320
TP401
TP402
TP601
TP602
TP603
1:B2
1:B2
1:B2
1:L6
1:F2
1:F2
1:F2
1:F2
1:F2
1:F2
1:F2
1:F2
1:F2
1:F2
1:F2
1:F2
1:B5
1:D9
1:E3
1:F9
1:F8
1:D7
1:F9
1:F4
1:F4
1:E7
1:M7
1:L9
1:N5
1:M6
1:L5
2-C3
2-D2
2-D1
6-M2
1-F0
1-F0
1-G0
1-G0
1-H0
1-H0
1-H0
1-J0
1-J0
1-K0
1-K0
1-L0
2-M8
3-A7
3-J4
3-B8
3-B9
3-D2
3-A5
3-L3
3-L3
3-C5
4-G7
4-P6
6-J6
6-Q6
6-Q1
Device
PCB
Circuit
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01686-03
T854 PCB Information
M8SL2-00-002-812
C6.2.17
9
%C203A
C201 C202
C485
#L920
R490
C496
R640
C630 R638 R637
#L930
#L940
D610
R645
R633
R649
C638
C636
D620
R677
C655
R836
R101
SK810
Q101
R865
IC830
R841
R847
R849
Q850
P805
Q810
D810
C822
P150
C841
P160
R160
R850
Q840
SL810
R730
R732
R802
R801
R855
C844
R877
R879
C813
R811
Q830
R809
R812 C812
R861 C827
R859 C828
C826
C824 C823
R840
R810
PL100
%R150
R835
R842
R103
R833
R874 R873 R876
R871
C810
C830
R875
R863
R837
R832
R867
SK805
R831
R816
R848
R808 R818
C708
D111
RV805
R815
R711
R872
R854
R853
%R856
%R857
R701
R821
R822
R845
R880
R881
C709
=SK710
R728
=IC700
=R705
R706
R708
C703
R727
Q860
%R715
R713
C722
C726
R703
R702
%R714
%R716
Q710
R721
R722
%R704
R718
D720 R723
R725
Q730 C729
D710 C720
R717
C770
%R726
C711
R746
C742A
%C733
R710 R707
R776
R758 R762
C764 R759 R763
R771
R760
R767 Q780
R775
Q775
C767
C776
R765
Q770
D730
C761 R772
R757
C759
C745
C769
TP715
C102
R843
P810
C706
C714
IC710
C712
C838
C101
SK536
R830
Q820
T85436
R709
C710
P830
R829
IC820
R827
R826
R828
R813
T85435
T85423
C741A
%C713
P840
R731
T85433
T85420
R747
Q740
R824
R825
P820
P825
P835
R100
C100
C103
Q100
C631A
Q102
C687
R651
R652
R641
TP601
C634
D630
TP607
TP604
C700
C725
R719
R748
T85416
C740A
IC720
R712
C719
C724
Q720
C735
T85430
R742
R720 C727
C736
R749
T85415
D732
IC730
C743
T85426
Q785
IC740
C741B
T85425
T85413
C765
C742B
R744
T85410
Q790
R769
Q760
C785 R784
C782
C383
R774
C740B
C788
R790 Q795
IC750
R743
R752
C757
R334
L334
C774
TP710
R791
C792
C772
C762
C784 R780 R782
R328
L701
Q345
Q335
C347
R369 C345 R365
C348 R367
C349 C346
R750
C750
R754
R756
R766
C790
C344
C343
C333
R327
R387
R332
R368
R362
R753
R786 R785
R323
C354
R363
R331
C355
C361 C367
L305
C381 R348
R653
R673
R685
C673
IC650
C660
R625
C623
C626
C628
R613
C605
R609
C677
Q670
R689
C665
TP603
R657
R615 R665
R661 R669
C610A
P100
IC630
D645
C640
R693
R681
R560
R617
C610B
R696
IC640
C611B
D635A
C514
IC610
#C990
R619
R621
C611A
C670
C530
R555
D640 Q660
C535
L521
%R550
Q550
Q510
SK535
Q540
R545
C515
R513
%R551
Q520
SK534
Q610
C608
L601
C607
C507
C509
C508
T610
TP602
Q630 R629
R882
C880 R819
D245
D240
C255
R384 R383
R787
C240
R480
L470
L455
C503
R510
R505
C690
#C980
Q620
R102
C351
R245
C249
C223
C253
L465
L410
C430
SK513
#R519
Q750
TP314
Q340
%R276A
P219
R472 R473
R470 R471
#R410
L418
L420
C419
#R430
SK410
Q333
#R420
C300
C373
C370B
C305
L435
Q505
D510
L520
R520
SK533
C536
C537
C512
C510
R525
R523
C368
R326
R214
R213
C221
LINK1
R240
R243
R202
#R517
C786
%D205
%D210
SK505
C353
TP305
P257
P235
R364
#C950
C499
TP401
C625
C693
C681
SK504
C394
R382 C352
R376
IC250
R268
%R211
P263
C362
C356
Q341
Q270
%R200
%C203B
%R228 %R220
R329
D270
%R200A
%R203E
D250
D360 D304
L320
L460
#C940
R381
D260
%T210B
SK531
SK532
C388
R269
%R201
%T210A
%T210
C504
SL501
C364
Q337
%R203B
R270
2
SK522
SK503
R344
L304
C382 R336
%R203A
%R203
TOPFIDA
R247
C251
R248
Q260
C363
P217
P215
C233
C684
TP313
R276
C387
PL202
C225
SK502
Q334
C365 C366
R249
C257
C435
C455
C525
R251
R212
R215
C227
R272
PL201
R275
C279
R274
C237
C239
Q332
C519
R540
L321
#C910
#C920
D440
C450
R504
R514 C505
L322
IC240
R271
3
P255
C275
%C205 %C204
R216
R218
R219
R226
R278
D220
Q220
Q230
RV220
R225
R227 R224
4
R233
R230
R235
C241
C232
C229
R229
R217
R231
R232
C242
C277
R273
R223
SK501
Q331
R342
P290
#CV475
L430
P291
TP206
P230
#L910
L485
Q530
Q336
C493
L475
#C460
R502
R345 R346
R236
C470
L450
R501
R503
L327
L326
Q420
#C445
L445
C513
SK200
C415
R535
C369
C438
C511
R530
L323
R288
L440
Q410
R515
R296
#C465
#C440
TOPFIDB
#C900
#C970
R325A
C374 C375
R450
D420
#C480
#C410
C518
L522
C517
C516
L324
C481
#R451
C418
#R518
IC220
L303
R370
L328
C340A
C334
C337
C263
C332 R338
L302
R372 R373 R374
R371
C371
C316
%R308
L325
%C336
C490
R460
C335
R360
C385
5
R280
C235 R279
R277 C283
C281
C243
C230
IC230
C330A
%C295
R347
C378 C380
C209
R254
C245 C247
SK205
R305
TP310
C377 C376
R244
R208
RV330
C392
R337 C393
C386
C389
R379
C213
C219 R210
C217
Q210
R209
C215
6
Q320
L425
R320
%R298
IC350
R354
C331
R352
P275
C287
R339 R343
C325
C342
R299
R207
R206
R341 C327
TP320
C405
L415
R324
C307
C306
C350A
TOPSLOT
L480
R481
L405
#R440
C350B
C384
P239
Q325
C420
L481
#C439
SK310
C259
R253
C211
C293
IC340
R255
%C294
C390
C391 R380
R340C
Q326
R300
D381
R297
R306
C340B
D380
P240
P237
C291
IC210
C210
C261
%R234
%R222
%RV210
R283
C207
D230
R356
R359
R204
P251
C339
L333
R361
C341
C338
R351
R353
7
Q250
R205 R286
R282
D211
P231
P249
R284
R221
Q240
R238
R242
C285
R237
RV320
TP402
C421
R378
R241
D212
C303
C302
R259
R316
C301
R302
R350
R309
R325
R239
P245
R366
R357
R307
C370A
TP306
TP307
R319
%C265
R330
C370C
R304
R263
R311
R264
C267
IC370
C330B
%R310
CTCSSM
IC330
C319
C315 R303
R256
R257
R258
R349
C260
&C271
SW230
&C269
R267
C273
R265 R266 R290
8
IC260
&C289
P259
C372
R340
R355
C311
R312
R313
R292
R293
R294
R295
%R246
R287
AIFIDA
R301
C313
R260
R262
P267
P261
TP312
TP302
P273
R285
R289
%R291
P269
Q330
P271
TOPHOLE
P170
Q211
P225
AIFIDB
%R203D P204
%R203C P208
P233
1
A
B
C
D
E
F
G
TAIT ELECTRONICS
H
IPN:
220-01686-03
J
ISS:
A
K
ID:
1.TA
L
M
N
P
DATE:
1 Mar 2002
T854-XX-7XXX PCB LAYOUT - TOP SIDE
T854 PCB Layout – Top Side
220-01686-03
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Q
IPN 220-01686-03
C6.2.18
T854 PCB Information
M8SL2-00-002-812
9
BOTFIDA
8
C930
7
C960
6
5
4
3
2
BOTFIDB
BOTSLOT
BOTHOLE
1
Q
P
N
M
L
K
J
TAIT ELECTRONICS
H
G
IPN:
ISS:
220-01686-03
A
F
ID:
2.BA
E
D
C
B
A
DATE:
1 Mar 2002
T854-XX-7XXX PCB LAYOUT - BOTTOM SIDE
S l 121
R t ti
0
d
T854 PCB Layout – Bottom Side
220-01686-03
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01686-03
T854 PCB Information
M8SL2-00-002-812
C6.2.19
9
P269P273
BUFF IN
POCI
+4V1
GND
LPF OUT
GND
8
P245
TX REG
D212
TX LED
P231
+9V
D211
SUPPLY LED
LED AN
7
P240
P237
P275
+9V
AUDIO-2
POCR
P239
TP602
6
+9V
SK200
1 3 5 7 9
2 4 6 8 10
5
TP501
TX-REG
TP206
P230
+9V
TP601
+4V1
TP603
P255
PL201
CTCSS
RV220
TP604
4
TP710
COMPRESSION LEVEL
PL202
P217
P215
TX EN OPT
AUX OUT 3
LOCK-DETECT
3
2
4
6
8
10
12
14
16
TP300
AB22_CNTRL-VOLT
1
3
5
7
9
11
13
15
TP607
+20V
+13V8
+5VDIG
+5V
AUX OUT 7
AUX OUT 6
AUX OUT 5
AUX OUT 4
RV805
CTCSS LEVEL
P810
SERIAL COM
P150
P805
SK805
TP715
SERIAL-COM
AUX OUT
P160
12.8MHZ
2
P257
CTCSS
P219
P219
P263
P225
GND
P204
P208
P235 P233
AUDIO-1
P170
OPTO KEY (+)
OPTO KEY (-)
AUDIO-2
LINE IP3
LINE IP2
AUDIO 1 AUDIO 1
1
A
B
C
D
E
F
G
H
J
K
L
M
N
P
T854 Test Points & Options Connections – Top Side
220-01686-03
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01686-03
C6.2.20
T854 PCB Information
M8SL2-00-002-812
9
8
7
6
5
4
3
2
1
P
N
M
L
K
J
H
G
F
E
D
C
B
A
T854 Test Points & Options Connections – Bottom Side
220-01686-03
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01686-03
T854 PCB Information
M8SL2-00-002-812
A
B
C
D
E
F
+13V8-FILT-2
G
H
J
K
L
M
N
TX-REG-FILT-2
+13V8
9
+13V8-FILT-2
VCO-MOD
REV-PWR
REV-PWR
PA
REF-MOD
FWD-PWR
8
R
TX-REG-FILT-2
+9V-EX
+13V8
+5V
Q
TX-REG-FILT-1
+13V8-FILT-2
+9V-EX
9
P
C6.2.21
FWD-PWR
DUAL_POINT_IND
FILTER
FILTER
I/OPAD
HARMONIC-FILTER
8
SHEET 9
SHEET 4
TEMP-SENSE
GND
TEMP-SENSE
P100
ANTENNA
GND
TX-RELAY-DRV
LED
TX-REG-FILT-1
+9V
+13V8
+5VDIG
TX-REG
7
+20V
TX-REG
+5V
7
+9V
VCO
6
SCKP
AUDIO
+9V
+5V
6
REGULATOR
SUB-ASSY
PROCESSOR
+13V8
VCO-O-P
VCO-O-P
SDAP
+5VDIG
TX-REG
CTCSSM
+20V
E-P
SHEET 6
VCO-MOD
TX-KEY
SHEET 5
SHEET 2
TX-ENABLE
+5V
RESET
5
DRANGE 1
TX-CONT
+9V
WATCHDOG
TX-REG +20V
NOT-RESET
EXCITER
TX-ENB
TX-ENABLE
4
CNTRL-VOLT
DIV-BUFFER
AUDIO-2
GND
AUDIO-1
5
PL100
TX-KEY
13
13
TX-ENABLE
PL100
5
TX-ENABLE
+9V
5
SERIAL-COM
I/OPAD
P150
+5VDIG
7
REV
FWD
LOCK-DETECT
LINE-I-P-3
+9V
+20V
+5V
SDA
SCK
SHEET 7
SCKP
AUDIO-2
I/OPAD
P170
TX-RELAY-DRV
SHEET 8
SCK
SDAP
7
%R150
10E 1%
AUDIO-1
R160
10E 1%
AUDIO-2
LED
PL100
E-P
PL100
PL100
CTCSS
PL100
LINE-I-P-4
PL100
12
OPTO-KEY-
12
OPTO-KEY+
11
OPTO-KEY+
CTCSSM
11
8
CTCSS
LINE-I-P-2
8
4
LINE-I/P-4
4
LINE-I-P-3
PL100
3
LINE-I-P-2
PL100
LINE-I-P-1
PL100
DUAL_POINT_IND
2
to
fan
Q102
BC857
MJD2955
Q100
R101
12K
C102
47U
DGND & GND ARE JOINED
C100
150P
C101
47U
THROUGH R617 ON SHEET 6
2
1
C103
1N0
PRODUCT INDICATORS
-10
-13
-20
-15 -16
REV/ISS
DESG CHANGES TO MATCH BAAN
DCO NO. 1686-002
DCO NO. 1686-001
ORIGINAL
AMENDMENTS
9
14
PL100
15
15
BRD
BRD
BRD
BRD
DRAWN
18-03-02
01-03-02
19-12-01
26-07-01
CHKD
D.O.
APVD
DATE
T85410
0
T85413
0
T85415
0
T85416
0
T85420
0
-23
T85423
0
-25
T85425
0
-26
T85426
0
-30
T85430
0
-33
T85433
0
-35
T85435
0
BOTFIDA
FIDUCIAL
BOTFIDB
FIDUCIAL
TOPFIDA
FIDUCIAL
TOPFIDB
FIDUCIAL
AIFIDA
HOLE
BOTHOLE
HOLE
BOTSLOT
SLOT
TOPHOLE
HOLE
TOPSLOT
SLOT
AIFIDB
HOLE
0
PL100
-36
T85436
0
TAIT
ELECTRONICS
T854-XX-7XXX
TRANSMITTER
IPN:
ISSUE:
220-01686-03
PROJECT:
T854
DESIGNER:
BRD
B
FILE
NAME:
168603b
ID:.
2.SC. 1
FILE
DATE:
18-Mar-02
Sheet 1 – T854 Transmitter Overview
220-01686-03
© Copyright Tait Electronics Limited August 2004. All rights reserved.
1
10
+13V8 PL100
9
D111
22V
PL100
GND
14
GND
R102
3K9 Q101
BC817
R103
12K
03B
03A
02A
01A
1
1
+13V8 PL100
10
SK536
1 WAY SOCKET
0
2
LINE-I/P-2
LINE-I/P-1
+13V8
SCKP
+wire
R100
1
VCO-MOD
1
REF-MOD
15 WAY R-ANGLE DRANGE PLUG
SDAP
PL100
+13V8
2
3
LINE-I/P-3
LINE-I-P-1
3
6
AUDIO-2
6
OPTO-KEY-
LOCK-DETECT
GND
2
MICRO
SDA
REV
REF-MOD
FAN
LINE-I-P-4
SYNTH
SYNTH
CTCSS
SERIAL-COM
SYNTH
GND
3
MCU-CLOCK
FWD
OPTO-KEY+
TX-REG
SHEET 3
CNTRL-VOLT
DIV-BUFFER
SERIAL-COM
OPTO-KEY-
4
PL100
AUDIO-1
I/OPAD
P160
NO.SHEETS:
9
IPN 220-01686-03
C6.2.22
A
B
C
D
E
F
+13V8-FILT-2
G
H
J
T854 PCB Information
K
L
M8SL2-00-002-812
M
N
+13V8-FILT-2
+5V
TX-REG-FILT-2
R
+13V8
9
+13V8-FILT-2
VCO-MOD
REV-PWR
REV-PWR
PA
REF-MOD
FWD-PWR
8
Q
TX-REG-FILT-2
+9V-EX
+13V8
+9V-EX
9
P
TX-REG-FILT-1
FWD-PWR
DUAL_POINT_IND
FILTER
FILTER
I/OPAD
HARMONIC-FILTER
8
SHEET 9
SHEET 4
TEMP-SENSE
GND
TEMP-SENSE
P100
ANTENNA
GND
TX-RELAY-DRV
LED
TX-REG-FILT-1
+9V
+13V8
+5VDIG
TX-REG
7
+20V
TX-REG
+5V
7
+9V
VCO
6
SCKP
AUDIO
+9V
+5V
6
REGULATOR
SUB-ASSY
PROCESSOR
+13V8
VCO-O-P
VCO-O-P
SDAP
+5VDIG
TX-REG
CTCSSM
+20V
E-P
SHEET 6
VCO-MOD
TX-KEY
SHEET 5
SHEET 2
TX-ENABLE
+5V
RESET
5
DRANGE 1
TX-CONT
+9V
WATCHDOG
TX-REG +20V
NOT-RESET
EXCITER
TX-ENB
TX-ENABLE
4
CNTRL-VOLT
DIV-BUFFER
AUDIO-2
GND
AUDIO-1
5
PL100
TX-KEY
13
13
TX-ENABLE
PL100
5
TX-ENABLE
+9V
5
SERIAL-COM
I/OPAD
P150
+5VDIG
7
REV
FWD
LOCK-DETECT
LINE-I-P-3
+9V
+20V
+5V
SDA
SCK
SHEET 7
SCKP
AUDIO-2
I/OPAD
P170
TX-RELAY-DRV
SHEET 8
SCK
SDAP
7
%R150
10E 1%
AUDIO-1
R160
10E 1%
AUDIO-2
LED
PL100
E-P
PL100
PL100
CTCSS
PL100
LINE-I-P-4
PL100
12
OPTO-KEY-
12
OPTO-KEY+
11
OPTO-KEY+
CTCSSM
11
8
CTCSS
LINE-I-P-2
8
4
LINE-I/P-4
4
LINE-I-P-3
PL100
3
LINE-I-P-2
PL100
LINE-I-P-1
PL100
DUAL_POINT_IND
2
to
fan
Q102
BC857
MJD2955
Q100
R101
12K
C102
47U
DGND & GND ARE JOINED
C100
150P
C101
47U
THROUGH R617 ON SHEET 6
2
1
C103
1N0
PRODUCT INDICATORS
-10
-13
-20
-15 -16
REV/ISS
DESG CHANGES TO MATCH BAAN
DCO NO. 1686-002
DCO NO. 1686-001
ORIGINAL
AMENDMENTS
9
14
PL100
15
15
BRD
BRD
BRD
BRD
DRAWN
18-03-02
01-03-02
19-12-01
26-07-01
CHKD
D.O.
APVD
DATE
T85410
0
T85413
0
T85415
0
T85416
0
T85420
0
-23
T85423
0
-25
T85425
0
-26
T85426
0
-30
T85430
0
-33
T85433
0
-35
T85435
0
BOTFIDA
FIDUCIAL
BOTFIDB
FIDUCIAL
TOPFIDA
FIDUCIAL
TOPFIDB
FIDUCIAL
AIFIDA
HOLE
BOTHOLE
HOLE
BOTSLOT
SLOT
TOPHOLE
HOLE
TOPSLOT
SLOT
AIFIDB
HOLE
0
PL100
-36
T85436
0
1
10
+13V8 PL100
9
D111
22V
PL100
GND
14
GND
R102
3K9 Q101
BC817
R103
12K
03B
03A
02A
01A
1
1
+13V8 PL100
10
SK536
1 WAY SOCKET
0
2
LINE-I/P-2
LINE-I/P-1
+13V8
SCKP
+wire
R100
1
VCO-MOD
1
REF-MOD
15 WAY R-ANGLE DRANGE PLUG
SDAP
PL100
+13V8
2
3
LINE-I/P-3
LINE-I-P-1
3
6
AUDIO-2
6
OPTO-KEY-
LOCK-DETECT
GND
2
MICRO
SDA
REV
REF-MOD
FAN
LINE-I-P-4
SYNTH
SYNTH
CTCSS
SERIAL-COM
SYNTH
GND
3
MCU-CLOCK
FWD
OPTO-KEY+
TX-REG
SHEET 3
CNTRL-VOLT
DIV-BUFFER
SERIAL-COM
OPTO-KEY-
4
PL100
AUDIO-1
I/OPAD
P160
TAIT
ELECTRONICS
T854-XX-7XXX
TRANSMITTER
IPN:
ISSUE:
220-01686-03
PROJECT:
T854
DESIGNER:
BRD
B
FILE
NAME:
168603b
ID:.
2.SC. 1
FILE
DATE:
18-Mar-02
NO.SHEETS:
9
Sheet 1 – T854 Transmitter Overview
220-01686-03
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01686-03
T854 PCB Information
M8SL2-00-002-812
A
B
C
D
E
F
G
H
I
J
K
L
+9V-EX
M
N
O
P
Q
R
S
T
U
V
C6.2.23
W
+9V-EX
3Q8
CARRIER SWITCH
+9V-EX
R247
10K
SW230
SW NC
P239
Q260
BC857
R248
SW COM
9
C251
1N0
SW NO
P240
100K
P230
SPDT
R249
100K
P231
C257
47P
R213
10K
C253
TP206
C221
22U
TANT
AA G1,G2
BAW56
D250
OPTO-KEY
8
OPTO-KEY+
R240
1R3
I/OPAD
OPTO-KEY+
0
OPTO-KEY1R3
I/OPAD
OPTO-KEY-
BAW56
D260
BAW56
D260
R243
D270A G1
K G2D270
AKAKG1G1G2G2
0
BAV99
BAV99
R268
A
R270
1K2
IC250
4N25A
Q270 CATH N/C
MJD41
8
0V6
Tx-on
1N0
TX-ENABLE
E
1R4
6B1
P225
100E
OPTO-KEY-S/L
+4V1-TESTPOINT
+9V
C255
COLL
R214
8K2
AA G1,G2
BAW56
D250
R269
10K
OPTO-KEY+S/L
P219
K G2
K G1 AA G1,G2
AA G1,G2 K G2
9
+4V1
1N0
K G1
+9V
I/OPAD
+9V
I/OPAD
+9V
I/OPAD
+9V
I/OPAD
R271
1M
AA G1 G2D245K G1
C275
150P
AUTOMATIC LEVEL CONTROL(COMPRESSON)
BAW56
+9V-EX
AA G1 G2D245K G2
7
I/OPAD
TX-ENB-OPT
I/OPAD
TX-ENB-OPT
K G2
P215
BAW56
AA G1,G2
Q230
BC847B
BAW56
D240
K G1
C225
R276
0
AA G1,G2
+9V-EX
BAW56
D240
TX-ENB-OPT
R245
1N0
100K
+4V1
R212
100K
+9V-EX
R215
100K
R206
1K0
MICROPHONE PREAMPLIFIER
C223
100N
C215
22U
TANT
+4V1
R216
Q220
BC817
100K
100N
C217
2N2
R244
10K
0V6
LED
R229
470K
+4V1
3
2
R208
C245
150P
C247
150P
560E
C219
1N0
PL201
14 WAY PLUG
0
R273
G4
Q210
BC847B
R210
2K2
+
15K
G4
+
IC230
LM324D
-
C277
10N
A
B
C
D
E
F
G
G4
O/P
R275
2K7
-
H
I
J
K
L
M
N
4V1
1N0
R274
R272
560E
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
15K
7
8
9
10
11
12
13
14
+
IC230
LM324D
G3
PL202
+
1M
-
G2
-
100KG2
100N
+
AK C243
G1 G2
1N0
A G1
G2
6
Q240
BC847B
47K
C240
150P
LM324D
IC230
R233
-
R238
8R3
+9V-EX
R235
4K7
R231
10K
C241
O/P
G3
COMPRESSON-LEVEL
CW R230
RV220 MAX
50K
WIPER
100K
MIN
C242
10U
TANT
C235
1N0
R237
47K
D220
BAV99
I/OPAD
TX-REG
P245
R241
O/P
+
TX-REG-FIT-2
1
Q250
BC817
4K7
R239
1K5
TX-RELAY-DRV
8P6
D230
33V
P249
2
R242
2K2
RELAY
I/OPAD
P251
R224
R225
6K8
1M
3D1
TX LED
R232
330K
A
K
5
RELAY
I/OPAD
D212
RED
ALC PULSES
3V5
4V1
C237
1U0
TANT
14 WAY PLUG
C279
D211
GREEN SUPPLY LED
+9V-EX
R223G3
PRE-EMPHASIS
SK205
STEREO
SKT
1
TANT
10U
C213
5
R209
10K
R221
1K5
A
K
3V6
R236
+9V-EX
150P
+4V1
+9V-EX
K G2
D220
BAV99
C227
100N
3V6
MIC/PRESSEL
C233 2K2
47U
AK G1 G2
C229
150P
GND
GND
R207
3K9
R218
150K
C232
R251
100K
VREF
+V
VREF
+V
INH
Z
INH
Z
A
A
B
B
C
C IC240
4053BD
X0
X
X0
X
X1
X1
Y0
Y0
Y1
Y1
Z0
Z0
Z1
Y
Z1
Y
C249
6
7
R219
P217
2R1
R217
1K0
R226
10K
C239
R227
2K2
4U7BP
0.2Vpp
WITH ALC
4
4
%R200A
LINK1
%R203E
0
0
P208
Q211
P0300SA
LINE-I-P-1
LIMITER-1
G4
C281
LINE-LIMITER:OPTIONAL
%D205
%D210
22N
+4V1
%R203
1R1
%R203B
0
%R203A
0
0
G1
+
G1
-
15N
600/600
4
3
5
S1
6
1
%T210A
P3
-
56K
R278
120K
S2
G1
C287
O/P
R286 100U
2K2
-
C283
4P7
R284
4P7
R279
1M
R280
10K
P2782
4
3
S2
5
15K
2V7
R254
100K
%C203B
15N
G2
+
P1
S3
R288
+5VFILT
C259
47N
S1
G4
4V1
C285
-
1M
S3
R282
G4
O/P
+
R293
P273
+
IC260
LM324D
G3
-
47K
G3
O/P
VCO-MOD
5A9
R295
2K7
-
R253
100K
C261
4U7
G2
TANT
G2
+
47N
R256
100U
47K
G2
-
&R264
O/P
&R265
22K
R262
&R266
G1
+
G1
&C271
47P
-
15K 47K 1%
&C269
47K
G2
G2
R263
4K7
C267 1P5
4N7
4V1
+
IC260
LM324D
-
G1
O/P
&R290
560E
R267
2K2
%R291
5K6
C291
22U
TANT
+4V1
G3
C293
1U0
I/OPAD
POCR
R289
100K
G4
0
&C289
47N
+
G4
O/P
-
G4
O/P R296
G1 MAX
1K0
R287
10K
-
MAX
+
IC210
LM324D
G3
-
P275
IC220
DS1267
REF-MOD
O/P
G3
7B7
R299
2K7
%C294
47P
%C295
MIN
G1 MIN
2
470N
%R298
WIPER G1 WIPER
100K
REFERENCE-MODULATION-INTEGRATOR
R255
10K
-
+
REFERENCE
MOD-EPOT
+
IC260
LM324D
R285
0
1KHZ IN
LIMITING
4V1
R297
4V1
+
3
+4V1
LOW PASS FILTER
C273
IC260
LM324D
C263
1KHz IN
LIMITING
SUMMING
AMPLIFIER
R260
47K
+
IC210
LM324D
-
4K7
+4V1
CTCSSM
4V1
P3
CTCSSM
6
1
%T210B
G3
4K7
DEVIATION EPOT
+
IC210
LM324D
+
IC230
LM324D
R277
100K
POCI
I/OPAD
4V1
R292
P269
R294
+
4V1
%C203A
2
7V2pp IN
LIMITING
R283
56K
%R234
4K7
%R203C
LINE-I-P-2-S/L
1R2
I/OPAD
LINE-I-P-2
+4V1
I/OPAD
%RV210 3CW
10K LOG
1
2
AUDIO1
I/OPAD
BUF-IN
I/OPAD
%C204
4U7BP
C211
100N
P271
5
P235
%C205
4U7BP
AUDIO-1
I/OPAD
I/OPAD
LPF-OUT
4
P233
%R201
560E
I/OPAD
+4V1
LIMITER-2
P267
7
6
+4V1
AUDIO-2
1R3
AUDIO-2
P237
1K0
G2 MAX
2
3
%D205
1N4531
AUDIO-1
R202
MAX
LINE-I-P-2
C202
4U7BP
8
470
%R228
120
IC220
DS1267
3
0
P204
C201
1R2
I/OPAD
LINE-I-P-3
4U7BP
LINE-I-P-3-S/L
%R203D
LINE-I-P-3
1
470
%D210
1N4531
%R220
MIN
%R211
G2 MIN
0
1R2
G2 WIPER WIPER
0
%R200
LINE-I-P-4
VCO-MOD
ATTENUATOR
LINE_SENSITIVITY
%R222
4K7
%T210
T4030
%R276A
0
P1
560K
%C265 R258
1R2
4U7BP 150K
R259
22K
CTCSS
1
P255
CTCSS
I/OPAD
CTCSS
I/OPAD
BUFFER
R257
8R1
%R246
0
E-P
+9V-EX
SK200
SKT 2X4WAY TOP ENT
SCKP
SDAP
8R3
8R3
8R3
1
7R2
DUAL_POINT_IND
P257
2A7
TX-ENB-OPT
P290
P291
I/OPAD
I/OPAD
+5VFILT
MICRO MATCH TO PAGING BRD CON
C209 +V RST DQ CLK
47N +V -RST DQ CLK
IC220
DS1267
COUT
SOUT
GND
0
1R0
1R0
3Q7
4R1
5A4
6B0
7A0
8A0
9B7
+9V-EX
+5V
R204
2K2
C207
4U7
TANT
6B7
7C0
G1
+
+5VFILT
G1
-
+V
+
IC210
LM324D
V+
IC260
LM324D
G1 R205O/P
+9V-EX
+V
V+
C260 IC230
100N LM324D
+9V-EX
+V
V+
C230 IC210
100N LM324D
C210
100N
P261
220E
-
-V
V-
-V
V-
-V
VP263
SOUT
GND VB NC NC
GND VB N.C. N.C.
6B0
P259
COUT
GND
I/OPAD
0
DIGITAL-POTENTIOMETER
GND
I/OPAD
TAIT
GND
I/OPAD
ELECTRONICS
T854-XX-7XXX
AUDIO PROCESSOR
IPN:
ISSUE:
220-01686-03
PROJECT:
REV/ISS
AMENDMENTS
A
B
DRAWN
C
CHKD
D.O.
APVD
D
E
DATE
T854
F
G
H
I
J
K
L
M
N
O
P
Q
Sheet 2 – T854 Audio Processor
220-01686-03
© Copyright Tait Electronics Limited August 2004. All rights reserved.
R
S
T
U
DESIGNER:
BRD
B
FILE
NAME:
168603b
V
ID:
2.SC. 2
FILE
DATE:
18-Mar-02
NO.SHEETS:
9
W
IPN 220-01686-03
C6.2.24
B
C
D
E
F
REV-PWR-TESTPOINT
C316
150P
9
C300
1N0
R301
10K
G1
-
+13V8-FILT-2
R330
220E
R350
220E
O/P R304
G1
V+
+V
47K
-
IC330
C330B 358D
1U0
C330A
150P
R302
4R6
1K0
G2
7
C315
150P
R303
10K
G2
-
-V
C340A
150P
-V
+
IC340
358D
V+
G2
-
G2
O/P R305
R309
33K
220K
L328
C306
M21A
-
-
+9V-EX
C391
150P
+9V-EX
+9V-EX
C390
4U7
TANT
R380
1R8
R379
100E
Q332
BC807
10N
Q331
BC856S
6
+13V8-FILT-2
C370B
100N
C370C
4U7
TANT
R306
100K
R307
4K7
G2
L302
TEMP-SENSE
5
SHUTDOWN
TEMP
R338
4R7
R371
100K
-
TP320
TP312
G1
1K0
R343
+
G1 10K O/P
+
R340
5K6
CW
RV330 MAX
500K
WIPER
MIN
R341
R325A
1K0
1K0
C387
150P
C334
1N0
R348
10E
C394
0805
GND
6B0
1R0
1R0
2K0
4R1
5A4
6B0
7A0
8A0
9B7
TX-REG_TESTPOINT
+9V-EX
R366
10K
M21A
R359
R349
3K3
3
358D
IC340
G1
C311
150P
R312
15K
+
+
G1
C345
150P
R367
10K
4
C346
1N0
Q340
BC807
47K
C344
47N
R361
R365
R364
R368
68
56K
47K
22K
R369
100K
C348
150P
C347
150P
Q345
BC807
TP313
C341
1N0
R356
100K
C343
1N0
C342
150P
R344
1K5
TP314
C384
150P
R360
1K5
C381
150P
R376
1K5
C337
150P
R351
C351
5G3
D360
150P
TX-REG-FILT-2
1
M21A
BAT18
D380
BAT18
R382
47
2S5
C385
150P
C352
1N0
L304
3.0T/2.0
C355
R331
R327
C362
C361
C367
150P
18
22
150P
150P
150P
R332
330
TX-REG-FILT-2
68
L334
D340
BAT18
R381
1K5
R334
C333
150P
470E
L305
330NH
R387
330
R328
82
Q337
BFG591
C363
0805
R323
220E
C364
12P
C365
33P
PRINTED
C356
150P
L320
330NH
L322
R354
0805
VCO-O-P
5A2
C392
150P
R337
10E 1%
2
R329
PRINTED
C331
1N0
N.F.
TX-REG-FILT-1
L326
270NH
TP310
68
C383
150P
C386
1N0
100N
L321
7R5
L327
4S2
C393
R336
10E 1%
100K
R352
R342
47
3
C382
100N
LOCK-DETECT_TESTPOINT
LOCK-DETECT
C349
100N
Q341
BC847B
R355
1K5
470K
Q335
BC807
R363
Q326
BC847B
C338
150P
R313
47K
C339
150P
R353
10K
MAX
R347 CW RV320
10K
WIPER
120K
MIN
O/P
5
+9V-EX
R362
100K
Q325
BC847B
FAN
-
R320
4K7
TP305
47K
Q330
BC807
-
D381
5V1
TX-REG-FILT-2
C325
150P
L333
G1
3
R345
6K8
%C336
4U7
TANT
C335
47N
R357
R311
100K
6
2
47K
4
+9V-EX
7
C373
100N
R346
3K3
C388
1N0
+
Q320
BC847B
220K
C327
150P
C332
1N0
+
R325
R319
358D
IC350
R339
SHUTDOWN
TEMPERATURE
R324
R373
820
C389
150P
Q331
BC856S
Q334
BC847B
G2100E O/P
C372
4U7
TANT
C371
10N
R374
1K2
358D
IC350
G2
G1
120
C305
150P
SHUTDOWN
POWER
LEVEL
M21A
-
4A6
R372
6K8
IC370
8 LP2951 1
V IN V OUT
2
SENSE
6
3
VTAP
SD
5
ERROR
FB
GND
7
4
Q333
BD139
C303
150P
2L9
L303
0805
N.F.
C307
8
+9V-EX
+9V-EX
C370A
150P
R378
E22
+13V8-FILT-2
V-
+13V8-FILT-2
100N
R316
270K
C302
100N
O/P
+13V8-FILT-2
R370
10
TP302
2
+
N.F.
G2
R
9
IC340
358D
C340B
1U0
V-
+
IC330
358D
C301
1N0
+9V-TESTPOINT
+
IC350
358D
C350B
1U0
Q
8N8
10K
C319
150P
FWD-PWR
+V
FWD
%R310
FWD-PWR-TESTPOINT
C350A
150P
V-
-V
V+
+V
P
R340C
220E
G2
8
TP306
N
+13V8-FILT-2
+13V8-FILT-2
+
IC330
358D
C313
150P
M
D 1
C368
C366
0805
4P7
R326
G
2
Q336
PD55003
PRINTED
1K0
+
L
L325
4R4
G1
K
PRINTED
R300
8M8
10K
J
L324
REV-PWR
H
PRINTED
TP307
G
REV
%R308
M8SL2-00-002-812
L323
A
T854 PCB Information
SIDE ENTRY COAX SKT
C380
S 3
SK310
68P
C369
1210
C374
33P
C376
22P
C375
33P
C377
27P
C378
12P
1
3R3
COAX_TO_PA
R384
560E
R383
15K
C353
150P
C354
22P
0
0
LOW POWER TEMP CONTROL
POWER_CONTROL
RF PIN SWITCH
EXCITER
TAIT
2A
1A
0A
REV/ISS
ELECTRONICS
T854-XX-7XXX
EXCITER
IPN:
ISSUE:
220-01686-03
PROJECT:
AMENDMENTS
DRAWN
CHKD
D.O.
APVD
DATE
DESIGNER:
T854
BRD
B
FILE
NAME:
168603b
ID:.
2.SC. 3
FILE
DATE:
18-Mar-02
NO.SHEETS:
9
Sheet 3 – T854 Exciter
220-01686-03
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01686-03
T854 PCB Information
M8SL2-00-002-812
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
C6.2.25
R
+13V8
9
9
+13V8
6B5
1R1
1R1
6C7
8
8
TEMP-SENSE
L481
-T
R481
4K7
TEMP-SENSE
3A5
330NH
C481
150P
7
7
+13V8
+13V8-FILTERED-2
+13V8-FILT-2
6
+13V8
+13V8-FILT-2
+13V8
TP401
TESTPOINT
TP402
+13V8-FILT-2
L425
3Q7
SUPPLY
5.0T/4.0
C418
100N
L420
L430
4S2-3T
4S2
C420
150P
C419
100N
C421
100N
3A7
L435
1.5T/6.0
C430
1N0
L460
4S2
C435
47U
L480
330NH
R473
470
R472
#R451
240E
SK410
SIDE ENTRY COAX SKT
#R410
C405
10E
12P
10E
#R440
470E
#C410
39P
R450
30E
PRINTED
C455
4U7
C485
150P
D420
RF2815
C490
150P
L475
C470
C493
#556
100P
100P
R460
4K7
5
D420
RF2815
FILTER
9B8
#C445
33P
#C460
27P
#C465
27P
#CV475
2/10P
#C480
4P7
L450
4S2
R480
100E
R490
4K7
4
D440
RF2815
C415
33P
L415
4S2
560E
R471
150P
R470
100E
COUPLER
D440
RF2815
L445
3.5T/3.0
#C440
39P
L405
1.5T/2.5
C450
100P
Q420
SD1488
68P
Q410
SD1433
PRINTED
L455
PRINTED
L440
C438
L410
1.5T/6.0
#R430
#R420
470E
PRINTED
#C439
150P
L418
4
L465
10MM COIL
L470
5
6
FWD-PWR
+13V8
L485
REV-PWR
330NH
3A9
C496
150P
C499
150P
3
3
DIRECTIONAL COUPLER
POWER AMPLIFIER
2
2
1
1
GND
6B0
1R0
1R0
2K0
3Q7
5A4
6B0
7A0
8A0
9B7
0
0
TAIT
ELECTRONICS
T854-XX-7XXX
PA
IPN:
ISSUE:
220-01686-03
PROJECT:
REV/ISS
AMENDMENTS
DRAWN
CHKD
D.O.
APVD
DATE
T854
Sheet 4 – T854 PA
220-01686-03
© Copyright Tait Electronics Limited August 2004. All rights reserved.
DESIGNER:
BRD
B
FILE
NAME:
168603b
ID:.
2.SC. 4
FILE
DATE:
18-Mar-02
NO.SHEETS:
9
IPN 220-01686-03
C6.2.26
A
B
C
D
E
F
G
H
J
T854 PCB Information
K
L
M8SL2-00-002-812
M
N
P
Q
R
VCO-MOD
9
2U3
R504
C503
330
4N7
KK G1,G2
A G2
BAV70
Q505
D510
BC847B
KK G1,G2
A G1
R501
10K
8
R502
10K
R503
5K6
9
R505
15K
BAV70
D510
8
CNTRL-VOLT
R510
1K5
7R3
7
7
SK501
1
SK531
1 WAY SOCKET
1 WAY SOCKET
1
C505
47N
C504
150P
R514
33
6
2
6
DIV-BUFFER
SK502
SK532
1 WAY SOCKET
SK522
1 WAY SOCKET
1 WAY SOCKET
7R1
2
R515
56E
+9V
+9V
+9V
C519
+9V
5
5
150P
6C7
7B0
8B9
C525
150P
SK503
3
C507
100N
6B6
Q520
BC807
1 WAY SOCKET
R560
470
SK533
1 WAY SOCKET
3
Q550
BC847B
4
C517
150P
C516
10N
GND
L522
M21A
R540
2K2
8V4
C530
22U
TANT
4
SK504
4
1 WAY SOCKET
+8V
SK513
R555
4K7
1R0
1R0
2K0
3Q7
4R1
6B0
7A0
8A0
9B7
1 WAY SOCKET
6B0
C518
100N
3
SK505
5
VCO-O-P
#R518
1 WAY SOCKET
18
#R517
330
#R519
330
+9V
4
SK534
1 WAY SOCKET
Tx-on
Q540
BC807
Tx-off
3
L521
Tx-on
SK535
1 WAY SOCKET
M21A
3A1
5
%R550
1K2
Tx-off
%R551
4K7
2
C535
100N
C536
100N
C537
150P
2
+9V
TX-REG-FILT-1
R523
120K
3A1
Q510
BC807
R525
L520
1
TX-REG
M21A
47K
C512
100N
C508
150P
150E
SL501
FAST-KEY-OPTION/B
C514
150P
C513
150P
1
C510
47N
R520
6E8
7C0
R535
10K
C509
150P
C511
4N7
R530
R513
22K
10K
Q530
BC807
C515
10N
0
R545
4K7
0
TAIT
ELECTRONICS
T854-XX-7XXX
VCO
IPN:
ISSUE:
220-01686-03
PROJECT:
REV/ISS
AMENDMENTS
DRAWN
CHKD
D.O.
APVD
DATE
T854
DESIGNER:
BRD
B
FILE
NAME:
168603b
ID:.
2.SC. 5
FILE
DATE:
18-Mar-02
NO.SHEETS:
9
Sheet 5 – T854 VCO Section
220-01686-03
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01686-03
T854 PCB Information
M8SL2-00-002-812
A
B
C
D
E
9
+9V-Tx
F
G
H
+9V
0V
+9V
+9V
Q610
BC807
R613
560E
8
C605
150P
C610A
10N
C608
1N0
5A1
7C0
C607
1N0
0V(Tx)
R615
100E
M
N
P
C610B
100U
TANT
NC
VIN
IC610
78L05
VOUT
N/C
N/C
V OUT
NC
C611B
10N
C611A
100U
TANT
GROUND
GND
GND
GND
GND
8
R609
8A4
+13V8
0
1K0
+5VDIG
7
8A9
+5V
+5V
+5VDIG
2F0
7C0
+9V
+9V +13V8
5A5
7B0
8B9
1R1
1R1
4R8
A G1 D610
BAV99
+5VDIG SUPPLY
+13V8 +20V
AK G1 G2
DGND CONNECTS GND
THROUGH R617
R625
1K0
R621
1
R619
1
AK G1 G2 D610
BAV99
K G2
+20V
7
7C0
+9V-TESTPOINT
C623
150P
+13V8
TESTPOINT
+13V8
TP601
TP604
+5V TESTPOINT
C631A
100N
R637
22
R638
22
VREG
VIN
VOUT
G1
R651
0
4
RESET
8A8
+
6
C628
1N0
R633
6K8
Q630
BSR30
G1
C626
4N7
O/P
+
5
5V
+13V8
R652
C636
100N
C634
10U
TANT
R641
1K5
8
+V
1
7
PBRST
ST
IC650
2
6
TD
RST
5 LOW PWR MON 3
TOL
RST
DS1232
GND
4
8R4
8R2
C638
150P
358D
IC640
+5VDIG
WATCHDOG
NOT-RESET
-
R645
470
1
C630
100N
G1
4K7
ADJ
7A5
7A5
8A2
R649
2
C625
470U
R629
270
LM317MDT
IC630
3
PBRST
+9V
TP602
Q620
BD242FP
+5V
6
5
R
9
R617
TX-CONT
Q
TP607
V IN
M21A
L
+5VDIG
TESTPOINT
+5VDIG
TX-REG
L601
K
on
DGND
8A0
J
C6.2.27
R653
10K
+9V REGULATOR
R640
10E 1%
+V
V+
IC640
358D
+5V REGULATOR
0
-V
C640 1
1N0
4
D645
33V
2
V-
+9V
3
+5V
3
Tx-on
R689
+5V
10E 1%
+1V3
Tx-off
R677
47K
Tx-off
C684
10U
TANT
240KHz
C681
100N
24vpp
TX-ENB
+9V
2
A G1
TX-KEY
R661
A G2
KK G1,G2
10K
D620
BAV70
R669
47K
1
BAV70
D620
A G2
R665
C655
1N0
R685
15K
G2
+
R657
10K
+20V SUPPLY
2
Q670
BC857
KK G1,G2
+20V
G2
-
1R4
2F7
G2
O/P
C693
10U
TANT
-
C690
100N
C677
1U0
TANT
A G2
R681
KK G1,G2
Q660
BC817
100E
A G1
KK G1,G2
BAV70
D640
C670
3U3
TANT
C660
100N
C665
10U
TANT
1
R693
100K
R673
100K
GND
R696
56K
1R0
1R0
2K0
3Q7
4R1
5A4
7A0
8A0
9B7
0
+20V TP603
TESTPOINT
6 3
BAV70
D640
C687
150P
+
IC640
358D
A G1
2
T610
680uH
4 1
BAV70
D630
100K
KK G1,G2
C673
1N0
8A3
BAV70
D630
1R5
TX-ENABLE
D635A
KK G1,G2 BAT165
0
TAIT
ELECTRONICS
T854-XX-7XXX
REGULATOR
IPN:
ISSUE:
220-01686-03
PROJECT:
REV/ISS
AMENDMENTS
DRAWN
CHKD
D.O.
APVD
DATE
T854
Sheet 6 – T854 Regulators
220-01686-03
© Copyright Tait Electronics Limited August 2004. All rights reserved.
DESIGNER:
BRD
B
FILE
NAME:
168603b
ID:.
2.SC. 6
FILE
DATE:
18-Mar-02
NO.SHEETS:
9
IPN 220-01686-03
C6.2.28
A
B
C
D
9
E
F
G
H
J
T854 PCB Information
K
L
C708
4U7
TANT
R702
1M
10E 1%
C709
100N
R709
10E 1%
R703
1M
FM
=IC700
+V
V+
+V
IC710
74HC04
12.8M
GND
OUT
-V
=SK710
SIDE ENTRY COAX SKT
C710
10N
C714
4U7
TANT
V-
V+
IC720
74HCU04T
-V
0
C719
4U7
TANT
15
RST
10
EN IC730
9 CLKB
74HC4520
Q0 Q1 Q2 Q3
11 12 13 14
=R705
47
V-
%R714
39K
8P2
100K
G2
I/P
R710
O/P
G2
100E
C712
47P
74HC04
R706
G1
G1 G6 O/P I/P
G6
74HC04
%C713
10N
IC710
G3
I/P
G3
O/P
G4
O/P
G4
G5
I/P
O/P
G5
I/P
R757
100K
LOCK-DETECT
150K
TANT
22U
C725
%R715
C726
1K0
10N
6
12.8MHz
6B5
8A2
IC720
C759G1
47N
TESTPOINT
G1
R752
22
G3
I/P
74HCU04T
TESTPOINT
TP710
+
+
IC750
33078D
PBRST
7
100E
R756
100K
TP715
5
O/P
R725
39K 1%
%R726 O/P
G3
74HC04
74HC04
G4
74HCU04T
+5V
100E
C706
47P
I/P
74HCU04T
74HC04
R711
G4
200KHz
IC710
IC710
IC720
G5 R723
O/P
I/P
R719
TANT
22U
C724
74HC04
6
IC720
G6 G5O/P
74HCU04T
R720
39K 1%
15K
R708
470K
I/P
R728
10K
2K7
R718
150K
O/P
BAV99
C729
220P
IC720
G6
8
D720
K G2 AK G1 G2
BAV99
R722
10K
C727
220P
R717
2K7
IC710
I/P
BAV99
Q740
BC857
Q720
BC857
200KHz
7
16
RST
VDD
2
EN
1 CLKA IC73074HC4520
GND Q0 Q1 Q2 Q3
8 3 4 5 6
12.8MHz
IC710
R707
IC710
6B5
8A2
R
D720
A G1 AK G1 G2
BAV99
D710
K G2 AK G1 G2
%R716
47K
C711
EXTERNAL
REFERENCE
OPTION
MCU-CLOCK
Q
R727
10K
Q730
BC847B
D710
A G1 AK G1 G2
TX-REG
REF-MOD
C703
1N0
C722
100N
%R704
0
Q710
BC847B
C720
100N
2V2
7
P
9
R721
10K
R713
8
N
R712
R701
22
VCC
M
PHASE-MODULATOR
+5V
+5V
C700
100N
M8SL2-00-002-812
-
G1
LOCKED-LOW
O/P
5
LOCK-DETECT
LOCK-DETECT
3A2
-
C757
22N
+9V
CHARGE-PUMP
+5V
4
R753
1M
R747
22
Q750
BC807
R743
C740A
1N0
150E
R742
150E
C741A
4U7
TANT
R744
22
C742A
100N
R759
330
R758
1K2
R754
1K0
R746
22
C762
22U
C761
10N
TANT
R762
R763
100E
R760
180
100E
4
Q775
BC857
LOOP-FILTER
D
C740B
10N
3
C741B
10N
R769
C742B
10N
SDA
8R3
2
VDD VCC VPD
VDD VCC VPD
PD OUT
REF IN
PDOUT
REF IN
DATA
REF OUT
DATA
REF OUT
CLK
LD
CLK
LD
-ENABLE
0R
ENABLE IC740
OR
OUT A
0V
145191
OUT A
OV
OUT B
RX
OUT B
RX
TEST2
TEST1
TEST2
TEST1
FIN
-FIN
FIN
FIN
470
R731
SCK
8R2
2A7
6B4
8R3
470
R732
SYNTH
8R3
Q760
BC847B
470
+5V
GND
GND
R748
+5V
0V
+5V
C745
150P
0V
47K
C735
47P
C736
47P
C765
4U7
BAT165
BAT165
R771
8K2
G2
R774
8K2
G2
R772
22K
R767
680
6V6
Q785
BC857
-
-
+5V TO +15V LOCKED
33078D
IC750
+
G2
CNTRL-VOLT
O/P
5A8
+
C772
22U
TANT
DUAL_POINT_IND
R777
2R1
2K2
R775
C774
18K
100N
2
+9V
C776
R787
10E 1%
4N7
D730
50ns WHEN
LOCKED
3
S
C767
1N0
D732
50ns WHEN
LOCKED
C743
47P
R749
47K
C764
10N
TANT
R765
680
Q780
BC847B
R766
1K0
Q790
BFR31
G
180
+5V
%C733
470P
R730
C770
22U
TANT
C769
1N0
R786
Q770
BC857
C785
150P
R780
68
R784
120
10E 1%
C784
150P
R785
3K3
N.F.
1
C782
R782
150P
18
C786
100N
1
Q795
BFR93A
L701
C792
1.5T/2.5
150P
DIV-BUFFER
5H6
1V4
+20V
0
+9V
GND
+9V
1R0
1R0
2K0
3Q7
4R1
5A4
6B0
8A0
9B7
6B0
+20V
+20V
6B6
5A5
6C7
8B9
6C7
+5V
+5V
2F0
6B7
TX-REG
TX-REG
5A1
6E8
+V
IC720
G2
I/P
G2
74HCU04T
O/P
G1
IC720
I/P
DIVIDER
BUFFER
R750
22
SPARE GATES
G1
74HCU04T
O/P
R791
1K0
R790
390E
C790
8P2
C750
10U
TANT
TAIT
V-
ELECTRONICS
T854-XX-7XXX
SYNTHESISER
IPN:
ISSUE:
220-01686-03
PROJECT:
REV/ISS
AMENDMENTS
DRAWN
CHKD
D.O.
APVD
DATE
0
V+
IC750
33078D
-V
C788
150P
T854
DESIGNER:
BRD
B
FILE
NAME:
168603b
ID:.
2.SC. 7
FILE
DATE:
18-Mar-02
NO.SHEETS:
9
Sheet 7 – T854 Synthesiser
220-01686-03
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01686-03
T854 PCB Information
A
B
C
D
E
F
G
H
J
K
L
M
N
P
9
CH-SLCT-1
CH-SLCT-6
CH-SLCT-7
CH-SLCT-5
CH-SLCT-4
CH-SLCT-3
5A5
6C7
7B0
CH-SLCT-2
+9V
6B6
6B7
CH-SLCT-1
+5VDIG
R824
2K2
R825
RESET
2K2
R826
C810
47N
6B4
10
RST
9
8
7
6
5
4
3
2
SERIAL-COM-1
I/OPAD
SERIAL-COM R808
R809
4K7
Q830
BC857
5V
R810
4K7
R811
4K7
P810
6
19
18
17
16
15
14
13
11
+5VDIG
Q820
BC817
10E 1%
R812
4K7
22
R813
4K7
5
R815
47K
C812
100P
150K
P1.7
P1.6
P1.5
P1.4
P1.3
P1.2
P1.1
P1.0
SK810
80C51
P3.7/RD
P3.6/WR
P3.5/T1
P3.4/T0
P3.3/INT1
P3.2/INT0
P3.1/TXD
P3.0/RXD
VSS
XTL1
21
Q840
BC857
R818
R816
44
VCC
5V
+5VDIG
Q850
BC847B
4K7
2K2
R832
CH-SLCT-3
+5VDIG
7
2K2
R831
CH-SLCT-2
0V
8
1R4
2K2
R830
+9V
CH-SLCT-0
+5VDIG
R829
CH-SLCT-0
CHANNEL SELECT TO MICRO BUS
P0.7
P0.6
P0.5
P0.4
P0.3
P0.2
P0.1
P0.0
36
37
38
39
40
41
42
43
2K2
R833
CH-SLCT-4
P820
AUX-OUT-7
I/OPAD
AUX-OUT-6
I/OPAD
P825
P830
2K2
R827
P835
2K2
R828
P840
2K2
R835
CH-SLCT-5
2K2
R836
CH-SLCT-6
AUX-OUT-5
I/OPAD
AUX-OUT-4
I/OPAD
REV
3F9
FWD
2K2
R837
CH-SLCT-7
3F8
2K2
AUX-OUT-3
I/OPAD
2K2
R840
2K2
R841
2K2
R842
+5VDIG
+5VDIG
35
EA
33
ALE
32
PSEN
+5VDIG
R880
4K7
2K2
R843
+5VDIG +5VDIG
R881
4K7
R853
4K7
R854
4K7
2K2
VARIABLE
P2.7
P2.6
P2.5
P2.4
P2.3
P2.2
P2.1
P2.0
31
30
29
28
27
26
25
24
TX-RELAY-DRV
WATCHDOG
SYNTH
SDA
SCK.
CTCSS_LSB
CTCSS_RX
CTCSS_MSB
2V5
Q
R
SKT 16-WAY MICROMATCH CH-SLCT-0
SK805 1
1 1
SKT 16-WAY MICROMATCH CH-SLCT-1
SK805 3
3 2
SKT 16-WAY MICROMATCH CH-SLCT-2
SK805 5
5 3
SKT 16-WAY MICROMATCH CH-SLCT-3
SK805 7
7 4
SKT 16-WAY MICROMATCH CH-SLCT-4
SK805 9
9 5
SKT 16-WAY MICROMATCH CH-SLCT-5
SK805 11
11 6
SKT 16-WAY MICROMATCH CH-SLCT-6
SK805 13
13 7
SKT 16-WAY MICROMATCH CH-SLCT-7
SK805 6
16
SKT 16-WAY MICROMATCH AUX-OUT-2
SK805 14
14 15
SKT 16-WAY MICROMATCH AUX-OUT-1
SK805 12
12 14
SKT 16-WAY MICROMATCH AUX-OUT-0
SK805 10
10 13
4 10
SKT 16-WAY MICROMATCH SERIAL-COM-1
SK805 8
8 12
SKT 16-WAY MICROMATCH TX-RELAY-DRV
SK805 2
2 9
MICROMATCH
PIN
+V
+V
SCL
SCL
A0
IC820
SDA
A1
SDA
A1
NC
A2 24C16
WP
A2
GND
GND
C813
1N0
D-RANGE2
PIN
CTCSS_DISABLE
4
8
7
6
15 8
+5VDIG
R819
4K7
NC
SKT 16-WAY MICROMATCH CTCSS-DISABLE
SK805 4
A0
9
6 11
+5VDIG
SKT 16-WAY MICROMATCH +5VDIG
SK805 16
SKT 16-WAY MICROMATCH GND
SK805 15
XTL2
20
C6.2.29
MICROMATCH TO D-RANGE2 CONNECTIONS
M8SL2-00-002-812
5
4
SERIAL-COM-1
EPOTS
Q860
BC847B
TX-CONT
R821
47K
3
R845
WATCH-DOG
TX_KEY_OUT
R822
6B8
470
SYNTH
7A2
SL810
AUX_OUT
I/OPAD
LED_FLASH
R801
P805
470
2U1
LED
2T6
R850
C880
150P
3
2U1
SCKP
470
+9V
E-P
470
R802
47K
BAT165
SDAP
470 R849
R882
Q810
BC847B
150K
D810
7A2
R847
R848
4K7
TX_KEY_IN
6F2
SDA
+5VDIG
MICRO-BYPASS
TX-ENB
6B5
47K
2T1
R879
10K
SCK
%R856
0805
C844
10N
TANT
12.8MHz
MCU-CLOCK
MCU-CLOCK
C841
100U
R877
4K7
G2
+
IC830
LM324D
6B5
7A5
7A5
G2
-
6B4
G2
47K
R872
4K7
-
C823
0V
G4
+
CTCSSMFREQUENCY
+
IC830
LM324D
G4
-
G4
O/P R873
CW
RV805 MAX
20K
WIPER
MIN
R861
R859
2L1
150K
150K
150K
C827
R865
100K
1
47N
C828
10N
G3
C826
220P
+
+
IC830
LM324D
G3
33P
C838
100U
TANT
0
R867
100K
R863
33K
R874
4K7
-
CTCSSM
22N
C824
+9V
CTCSS LEVEL
ADJUST
NOT-RESET
7A2
0
O/P R871
+5V
1
2
%R857
+
TANT
4U7
C822
2
-
G3
O/P
R855
4K7
0
+5V
0V
+9V
G1
+
CTCSSMFREQUENCY
GND DGND
6B9
+V
1R0
1R0
2K0
3Q7
4R1
5A4
6B0
7A0
9B7
6B0
IC830
LM324D
-V
+
IC830
LM324D
V+
C830
47N
G1
-
G1
47K
R876
4K7
-
V-
O/P R875
0V
AMENDMENTS
DRAWN
CHKD
D.O.
APVD
DATE
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN:
ISSUE:
220-01686-03
PROJECT:
T854
Sheet 8 – T854 Microcontroller
220-01686-03
ELECTRONICS
T854-XX-7XXX
MICROPROCESSOR
+9V
CTCSSMFREQUENCY
REV/ISS
TAIT
DESIGNER:
BRD
B
FILE
NAME:
168603b
ID:.
2.SC. 8
FILE
DATE:
18-Mar-02
NO.SHEETS:
9
IPN 220-01686-03
C6.2.30
A
B
C
D
E
F
T854 PCB Information
G
H
M8SL2-00-002-812
J
K
L
M
9
9
8
FILTER
4R4
#L910
#L920
#L930
#L940
1.5T/5.5
1.5T/5.5
1.5T/5.5
1.5T/5.0
ANTENNA
8
1R8
7
GND
6B0
#C900
3P9
#C910
3P9
C930
C960
1P0
1P0
#C920
3P3
#C940
4P7
#C950
4P7
7
#C970
3P9
#C980
3P9
#C990
3P9
1R0
1R0
2K0
3Q7
4R1
5A4
6B0
7A0
8A0
6
6
HARMONIC-FILTER
5
5
4
4
3
3
2
2
1
1
TAIT
ELECTRONICS
T854-XX-7XXX
HARMONIC-FILTER
0
IPN:
ISSUE:
220-01686-03
PROJECT:
REV/ISS
AMENDMENTS
DRAWN
CHKD
D.O.
APVD
DATE
T854
DESIGNER:
BRD
B
FILE
NAME:
168603b
0
ID:.
2.SC. 9
FILE
DATE:
18-Mar-02
NO.SHEETS:
9
Sheet 9 – T854 Harmonic Filter
220-01686-03
© Copyright Tait Electronics Limited August 2004. All rights reserved.
DI
M8SL2-00-002-812
Part D
T803-02-9000 Tone Remote
This part of the manual is divided into four sections as listed below. There is a detailed
table of contents at the start of each section.
Section
Title
1
General Information
2
Circuit Operation
3
Installation and Configuration
4
T803 PCB Information
© Copyright Tait Electronics Limited August 2004. All rights reserved.
DII
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
General Information
M8SL2-00-002-812
1
D1.1
General Information
This section provides a brief description of the T803 tone remote, along with detailed
specifications and information on system configuration.
The following topics are covered in this section.
Section
1.1
Title
Page
Introduction
1.3
1.1.1
Tone Remote
1.3
1.1.2
Alarm Monitoring and Confirmations
1.4
1.1.3
Voting Tones
1.4
1.1.4
Other Features
1.4
1.1.5
1.1.5.1
1.1.5.2
Front Panel Operating Controls
Mode LED
Alarm LEDs
1.5
1.5
1.6
Specifications
1.7
1.2.1
Introduction
1.7
1.2.2
General
1.7
1.2.3
1.2.3.1
1.2.3.2
Line
1.7
1.7
1.7
1.2.4
Radio Levels
1.8
1.2.5
Tone Remote
1.8
1.2.6
Audio Response
1.8
1.2.7
Alarms
1.9
1.2.8
Morse Code
1.9
1.2.9
Voting
1.10
1.2.10
Miscellaneous
1.10
System Configuration
1.11
1.2
1.3
1.3.1
Input levels
Output levels
Product Codes
© Copyright Tait Electronics Limited August 2004. All rights reserved.
1.12
D1.2
General Information
M8SL2-00-002-812
Section
1.4
Title
Page
Regulatory Information
1.12
1.4.1
Canada
1.12
1.4.2
1.4.2.1
United States Of America
Facility Interface and Service Order Codes
1.12
1.14
1.4.3
Europe
1.14
1.4.4
New Zealand
1.15
1.4.5
Australia
1.16
1.4.6
Hong Kong
1.16
1.4.7
Singapore
1.16
Figure
Title
Page
1.1
Front Panel Layout
1.5
1.2
T803 System Configuration
1.11
1.3
Single and double turn of line through filter
1.15
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
1.1
General Information
D1.3
Introduction
The T803-02 is a tone-operated Remote Controller otherwise known as a Tone Remote.
Features include alarm monitoring, voting tone generation and simple high site control.
It interfaces either a 2-wire or 4-wire line circuit to the T800 SL2 Base Station and thus
enables a dispatch console (also known as a desktop controller) to monitor and control
the remote basestation. The T803-02 interfaces with the SL2 receiver and transmitter via
the backplane PCB (X800-56-PCB3) and two small flat cable looms plugged into the Dranges on the back. The T803 is configured using the Tait PGM800Win programming
software (V4.02 and later) on a PC.
1.1.1
Tone Remote
The T803 tone remote enables a remotely located user to:
• key the transmitter
• defeat the receiver’s CTCSS mute (to monitor a channel)
• change the set channel (up to 256 channels)
• change between base station and repeater modes (repeater knockdown)
• monitor and cancel alarms
• turn repeater site equipment on or off (highsite control)
• loop back line audio (4-wire line interface only)
This is achieved using three industry-standard tone signalling plans for ease of integration into existing control systems and choice of vendor for office/control room equipment. These plans are:
•
EIA tone remote using a single function tone.
In this system when the control room user presses the transmit key, the line control equipment sends a 120ms long burst of high level guard tone (HLGT – usually
2175Hz at +10dBM to line). This is followed by a single 40ms function tone at
0dBm to line. The available tone set is 650Hz to 2050Hz in 100Hz steps. This function tone can change channel, monitor the radio channel (defeat receiver CTCSS)
or a variety of other functions. Following these initial tone bursts a low level
guard tone (LLGT – usually 2175Hz at –20dBm) is sent to line and speech is gated
onto line (at approx 0dBm peak level). This continues until the user releases the
transmit key. This removes speech from the line and low level guard tone ceases.
•
EIA enhanced tone remote using two function tones.
This is a variant of the above system where two function tones are sent one after
the other in the period between the high level guard tone and the low level guard
tone. The tone set is also expanded (650Hz to 2050Hz in 100Hz steps) to give 225
possible combinations which can be allocated to various actions. The duration of
both high level guard tone and function tones can be varied.
•
Simple Transmitter keying using low level guard tone.
This is used where complex functionality is not required. One application is to key
a link transmitter where the high level guard tone, the function tones, speech and
low level guard tones are transparently carried to an end base station. Note that in
© Copyright Tait Electronics Limited August 2004. All rights reserved.
D1.4
General Information
M8SL2-00-002-812
this application the notch filters (which ordinarily remove the key tone from the
audio path) must be turned off using PGM800Win so that the keying signal is
propagated to the end transmitter.
1.1.2
Alarm Monitoring and Confirmations
The T803 monitors three T800 sub-rack alarms (transmitter forward and reverse power,
and low battery/power supply), one line alarm (line fail indication) and four external
closure alarms. If alarms are triggered the T803 can be programmed to generate tone
sequences (DTMF, Selcall or function tones) and/or enable auxiliary outputs, to alert
system users of a problem. The tone sequences can be sent to line and/or radio.
Additionally the T803-02 can be programmed to respond to as many as eight different
non-alarm triggers. These can be used as confirmation that an event has occurred. Confirmations can be programmed to occur in the event of power-up, channel change and/
or the detection of up to six user defined function tones. In the same way as for alarms,
the T803 can generate tone sequences and/or enable auxiliary outputs as a response to a
confirmation.
1.1.3
Voting Tones
The T803 can also generate voting tones where a 4-wire line interface is used. Voting
systems are used where several base station receivers are tuned to the same radio channel and located at different sites, sending audio back to a central control where the best
quality audio must be selected or “voted upon”. Tone on Idle or Sliding Voting Tones
can be generated to interface a T800 sub-rack to a wide variety of industry standard
Radio Voting systems.
In Tone on Idle applications, a tone (normally the same frequency as LLGT) is transmitted to line when the T800 receiver is muted. When the tone disappears, control room
equipment can perform signal to noise measurements on incoming audio lines and
select the best for feeding to the control room user.
In Sliding Voting Tone systems, a tone is transmitted to line whose frequency is proportional to the T800 receiver’s RSSI. Control room equipment determines which receiver
has the highest RSSI and thus selects which line carries the highest quality incoming
audio.
1.1.4
Other Features
•
Programmable Morse Code Encoder for automatic station identification (CWID)
•
User programmable Line levels
•
Programmable Transmit and Receive audio path delays
•
Programmable (on/off) notch filtering.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
General Information
M8SL2-00-002-812
1.1.5
D1.5
Front Panel Operating Controls
Plug in programming
cable from PC with
PGM800Win
Speaker
Green = base station mode
Red = repeater mode
Flashing see below
Plug in test microphone
to talk to despatcher or
radios
Adjust speaker volume
Green = auxiliary alarm
Red = rack alarm
Flashing see below
Speaker on/off
Change mode
Press together to enter test modes
or clear alarms
Figure 1.1 Front Panel Layout
1.1.5.1
Mode LED
The colour of the Mode LED on the front panel indicates the T803 mode of operation:
• Green = Base station mode
• Red = Repeater (talk through) mode
© Copyright Tait Electronics Limited August 2004. All rights reserved.
D1.6
General Information
M8SL2-00-002-812
The LED flashes in different ways, depending on the particular condition.
Flash Rate
Condition
equal
0.3s on/ 0.3s off
Module is linked with
PGM800Win
long flash
1 s on/0.3 s off
Microcontroller has detected an
internal communications error
short off
0.3 s on/0.08 s off
Speaker is on.
Where two or more conditions occur at the same time, the precedence is in the order
shown above (i.e. module linked has the highest priority, followed by microcontroller
error, then speaker on).
1.1.5.2
Alarm LEDs
The alarm LED turns on only when its alarm condition has been latched. The colour of
the LED indicates the source of the alarm trigger:
• Green = Auxiliary alarm
• Red = Rack alarm
The LED flashes in different ways as indicated below.
Flash Rate and Colour
Alarm
green very short off
0.32s on/0.01s off
Rack
red short off
0.32s on/0.1s off
Auxiliary
alternating red and green
0.32s on/0.1s off/
0.32s on/0.1s off
Rack and Auxiliary
Press the Monitor and Mode Toggle buttons together to reset all alarms.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
General Information
M8SL2-00-002-812
1.2
Specifications
1.2.1
Introduction
D1.7
The performance figures given are minimum figures, unless otherwise indicated, for
equipment operating at standard room temperature (+22°C to +28°C) and standard test
voltage (13.8VDC).
Details of test methods and the conditions which apply for Type Approval testing in all
countries can be obtained from Tait Electronics Ltd.
1.2.2
General
Supply Voltage:
Operating Voltage
Standard Test Voltage
Polarity
… 10.8 to 16VDC
… 13.8VDC
… negative earth only
Supply Current
… 250mA max.
Operating Temperature Range
… –30 to +60°C.
1.2.3
Line
1.2.3.1
Input levels
Line-In (Level required to produce a transmitter output at 60% full system deviation):
Programmable
Maximum input peak
1.2.3.2
… –27dBm to +3dBm
… +7dB relative to programmed level
Output levels
Line-Out (Radio receiver level to T803 must be 230mVrms)
Programmable
Dynamic range
Maximum output peak
… –27dBm to –1dBm
… +7dB relative to programmed level
… +5.5dBm
For compliance with TIA/EIA-IS-968, CS-03 (Canada), PTC200 (New Zealand) and
HKTA 2023 (Hong Kong):
Programmable Line Output level must be set to ≤ –10dBm.
For compliance with ACA TS002 (Australia):
Programmable Line Output level must be set to ≤ –11dBm.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
D1.8
General Information
M8SL2-00-002-812
For compliance with TS PSTN1 (Singapore):
Programmable Line Output level must be set to ≤ –7dBm.
1.2.4
Radio Levels
From Radio Receiver
… 230mVrms at input of T803
(for 1kHz tone at 60% full system deviation)
(Note: This input of theT803 is high impedance)
To Radio Transmitter:
From Line-In
From Radio Receiver
1.2.5
… –4.4dBm
… –4.4dBm
(With receiver level to T803 set to
230mVrms)
Tone Remote
Keytone Sensitivity
… 29dB less than programmed Line-In
level
Keytone Accept Bandwidth
… ±0.75% typical (±16Hz at 2175Hz)
(Speech at –10dBm,
keytone at –30dBm)
Talkoff
(Max. difference between speech and keytone)
2-wire mode
4-wire mode
… 32dB typical
… 35dB typical
Programmable Guardtone Frequencies
… 1950, 2100, 2175, 2325, 2500, 2600,
2800, 2900, 2970, 3000 and 3100Hz
Programmable High Level Guard Tone Duration … 60 to200ms
Function Tone Frequencies
… 650Hz to 2050Hz in 100Hz steps
Function Tone Accept Bandwidth
… ±24Hz typical
Maximum Number of Function Tones
…2
Programmable Function Tone Duration
… 20 to 100ms
1.2.6
Audio Response
Frequency Response
… ±1dB 300Hz to 3kHz except at
notch frequency
© Copyright Tait Electronics Limited August 2004. All rights reserved.
General Information
M8SL2-00-002-812
D1.9
Notch Filter Bandwidth at –38dB
… ±0.6% typical (±13Hz at 2175Hz)
Notch Filter Bandwidth at –3dB
… ±1.28% typical (±28Hz at 2175Hz)
Notch Filter Attenuation
… 38dB
Audio Distortion:
From Line
From Receiver
… <2.5%
… <2%
Programmable Audio Delay:
Minimum
Maximum
Step
1.2.7
… 0ms
… 500ms
… 1ms
Alarms
Supply Voltage Alarm Threshold
Firmware up to version 2.10
Firmware version 2.11 or later
… 10.7V ±0.05V
… programmable 10.7V to 14.1V
(0.2V steps)
RF Power Alarm Thresholds
… adjusted inside transmitter or PA
Line Fail Alarm Timer
… off or 1 minute to 4 hours
Auxiliary Alarm
Input Trigger
Input Threshold
Maximum Input Voltage
… First and subsequent falling edges
… <1.5V (or to 0V via 3.3KΩ resistor)
… 5V
Alarm/Confirmation Sequence
… 0 to 14 tones to radio and/or line
(and/or Aux output when enabled)
Programmable Signalling Standards
… Selcall (CCIR, EIA, EEA, ZVEI, and
DZVEI) DTMF and EIA Tone Remote
function tone format.
Tone Carrier Deviation
(for test tone set at 60%)
… 70% nom. system deviation at 1kHz
Alarm Pip Tone Frequency/Duration
… 600Hz/200ms on tail of audio
1.2.8
Morse Code
Sending Speed
… 20 words per minute (PARIS)
Maximum Code Length
… 15.36 seconds
© Copyright Tait Electronics Limited August 2004. All rights reserved.
D1.10
General Information
M8SL2-00-002-812
Tone Frequency
… 1200Hz
Valid Station ID
… alphanumeric only
Repetition Rate
… off or 1 to 60 minutes
Carrier Deviation
(for test tone set at 60%)
… 20% nominal system deviation
1.2.9
Voting
Programmable Tone-On-Idle Frequencies
Programmable Sliding Voting Tone
Frequencies
… 2700 to 3500Hz
Voting Tone Level To Line
1.2.10
… 1950, 2100, 2175, 2325, 2500, 2600,
2800, 2900, 2970, 3000 and 3100Hz
… –40dBr to –1dBr
(Adjustable relative to Line-Out
setting)
Miscellaneous
Auxiliary Output Rating
… open collector, 50V, 250mA (at25°C)
Momentary Monitor (CTCSS Defeat) Time
… off or 1 to 20 seconds
© Copyright Tait Electronics Limited August 2004. All rights reserved.
General Information
M8SL2-00-002-812
1.3
D1.11
System Configuration
The following flow chart will help you to configure your T800 SL2 system to utilise the
features of the T803 Tone Remote. Refer to Section 1.3.1 for details on the product types
mentioned in this chart.
See Part C, Section 3.10
See Part B, Section 6.2
Figure 1.2 T803 System Configuration
© Copyright Tait Electronics Limited August 2004. All rights reserved.
D1.12
General Information
1.3.1
Product Codes
M8SL2-00-002-812
The following table provides a brief description of the products mentioned in Figure 1.2.
Consult your nearest Tait Dealer or Customer Service Organisation for more information on these products.
Product Code
Description
T800-04-0000
T800 UHF RSSI kit.
T800-80-0001
T803 test microphone. Used for line intercom and to talk on air.
T1500-52-0000
Tx alarm and multichannel kit (wired connection).
T800-10-0520
Tx Alarm kit (plug in).
1.4
Regulatory Information
1.4.1
Canada
This product meets:
•
Industry Canada Telecommunications Apparatus Compliance Specification
CS-03. Registration No. 737A-10118A.
•
Canadian ICES-003 (Radiated and conducted emissions, and electromagnetic susceptibility specifications) for Class A digital apparatus.
1.4.2
United States Of America
A copy of the Declaration of Conformity is available at www.taitworld.com
This equipment complies with TIA/EIA/IS-968, Part 15 Class A of 47CFR and Part 68 of
47CFR as detailed below.
•
TIA/EIA/IS-968 (Telecommunications - Telephone Terminal Equipment - Technical Requirements). Adopted criteria of the Administrative Council on Terminal
Attachments (ACTA).
•
Part 15 Class A of 47CFR (Radiated and conducted emissions, and electromagnetic susceptibility specifications) of the FCC rules for the United States. Operation is subject to the following conditions:
1.
This device may not cause harmful interference, and
2.
This device must not accept any interference received, including interference that may cause undesired operation.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
General Information
D1.13
Warning:
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide a reasonable protection against harmful interference when the equipment
is operated in a commercial enviroment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with
this manual, may cause harmful interference to radio communications. Operation
of this equipment in a residential area is likely to cause harmful interference in
which case the user will be required to correct the interference at their own
expense.
•
Part 68 of 47CFR (Connection of terminal equipment to the telephone network) of
the Federal Communications Commission (FCC) rules and the requirements
adopted by ACTA. On the rear face of this equipment is a label that contains,
among other information, the product identifier i.e. US: 6FPNZL-34203-OT-N. If
requested this number must be provided to the telephone company.
Warnings:
If this equipment, T803 Tone remote and Alarm Interface, causes harm to the telephone network, the telephone company will notify you in advance that temporary
discontinuance of service may be required. But if advance notice isn't practical,
the telephone company will notify the customer as soon as possible. Also, you
will be advised of your right to file a complaint with the FCC if you believe it is
necessary.
The telephone company may make changes in its facilities, equipment, operations
or procedures that could effect the operation of the equipment. If this happens the
telephone company will provide advance notice in order for you to make necessary modifications to maintain uninterrupted service.
Connection to party line service is subject to state tariffs. Contact the state public
utility commission, public service commission or corporation commission for
information
If trouble is experienced with this equipment, T803 Tone remote and Alarm Interface,
for repair or warranty information, please contact:
Tait North America Inc
Building 1, Suite 450
15740 Park Row
Houston, Texas, 77084, USA
Phone: 0800 320 4037
Fax: 281 829-3320
Mobile: 713-703-4991
Only approved Tait Dealer or Customer Service Organisations equipped with the
necessary facilities should perform any servicing. Repairs attempted with incorrect equipment or untrained personnel may result in permanent damage. If the
equipment, T803 Tone Remote and Alarm Interface, is causing harm to the telephone
network, the telephone company may request that you disconnect the equipment
until the problem is resolved.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
D1.14
General Information
1.4.2.1
Facility Interface and Service Order Codes
M8SL2-00-002-812
Unit Configuration
Function
USOC
Jack type
RENa
FICb
SOCc
T803 2-wire
2-wire leased line
RJ-11C
—
Metallic
7.0Y
T803 4-wire
4-wire leased line
RJ61X
—
Metallic
7.0Y
a. Ringer Equivalence Number
b. Facility Interface Code
c. Service Order Code
1.4.3
Europe
For Declaration of Conformity refer to eudocs.taitworld.com
According to the requirements of the EC Council Directive:
1999/5/EC Radio Equipment and Telecommunications Terminal Equipment Directive,
The T803-02-0000 Tone Remote and Alarm Interface complies with;
•
EN60950 : 2000 Electrical Safety
•
EN 301 489-5 Radiated and conducted emissions, and electromagnetic susceptibility specifications. Compliance to this standard is subject to the fitting of an additional EMC filter to the 2-wire/4-wire line interface. For more information see the
following section.
1.4.3.1
Additional EMC filter fitting instructions
Applicability
In order for the T803-02 to comply with the RF electromagnetic field immunity requirements of the EMC standard EN 301 489-05 (07-2000), an additional filter must be fitted
to the 2-wire or 4-wire line when the unit is installed. This filter, a clamp-on ferrite,
helps prevent electromagnetic energy from being coupled into the product.
Required Component
The T803-02 Tone Remote and Alarm Interface unit is supplied together with the following separate EMC Filter:
IPN
069-00010-31
Description
Clamp-on ferrite EMC filter for 13mm diameter cable
Manufacturer and part number
Fair-Rite Part No. 0431 164181
© Copyright Tait Electronics Limited August 2004. All rights reserved.
General Information
M8SL2-00-002-812
D1.15
Instructions
1.
The clamp-on ferrite must be located on the 2-wire or 4-wire line as close as possible to the T803. If the ferrite is not located within 10cm of the line socket, there is
no guarantee that the T803 complies with the EMC standards.
2.
Only one turn of the 2-wire or 4-wire line is required through the ferrite. However,
two turns are recommended (see Figure 1.3) as this provides extra immunity
while also securing the ferrite in position.
3.
Ensure that the 2-wire or 4-wire line does not impede the closing of the ferrite
clamp.
Single turn
Double turn
Figure 1.3 Single and double turn of line through filter
Technical Support
Contact your local Tait Electronics agent or Customer Service Organisation or visit Tait
Electronics Technical Support at support.taitworld.com.
1.4.4
New Zealand
This product complies with the following standards:
•
PTC200 Requirements for analogue telecommunications equipment.
•
AS/NZS 3548 Class A Radiated and conducted emissions specifications
Warning:
T803-02-0000 for use in New Zealand
“The grant of a Telepermit for any item of terminal equipment indicates only that Telecom New Zealand has accepted that the item complies with minimum conditions for
connection to its network. It indicates no endorsement of the product by Telecom New
Zealand, nor does it provide any sort of warranty. Above all, it provides no assurance
that any item will work correctly in all respects with another item of Telepermitted
equipment of a different make or model, nor does it imply that any product is compatible with all Telecom New Zealand's Network services.”
“This equipment does not fully met Telecom New Zealand's impedance requirements.
Performance limitations may occur when used in conjunction with some parts of the
© Copyright Tait Electronics Limited August 2004. All rights reserved.
D1.16
General Information
M8SL2-00-002-812
network. Telecom New Zealand will accept no responsibility should difficulties arise in
such circumstances.”
1.4.5
Australia
This product complies with the following standards:
•
AS/ACIF S006 - 2001 Telecommunications technical standard
•
AS/ NZS 3260 Electrical safety
•
AS/NZS 3548 Class A Radiated and conducted emissions specifications
1.4.6
Hong Kong
This product complies with the Network Connection specification HKTA 2023
1.4.7
Singapore
This product complies with the Type Approval specification IDA TS PSTN1
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Circuit Operation
M8SL2-00-002-812
2
D2.1
Circuit Operation
This section provides a description of the circuit and operation of the T803-02 tone
remote.
Unless otherwise specified, the term “PGM800Win” used in this and following sections refers to version 4.02 or later of the programming software.
Note:
Refer to Section 4 where the parts lists, grid reference index and diagrams will provide
detailed information on identifying and locating components and test points on the
main PCB.
The following topics are covered in this section.
Section
Title
Page
2.1
Circuit Overview
2.3
2.2
Tone Detection
2.4
2.3
Alarm Monitoring
2.5
Alarm Triggers
2.6
2.4
Confirmations
2.7
2.5
Clearing Alarms and Confirmations
2.7
2.6
Voting Tone Operation
2.8
2.3.1
Figure
Title
Page
2.1
High Level Block Diagram
2.3
2.2
Signal Flow
2.9
© Copyright Tait Electronics Limited August 2004. All rights reserved.
D2.2
Circuit Operation
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Circuit Operation
M8SL2-00-002-812
2.1
D2.3
Circuit Overview
2W/4W
Select
LINE
Progammable
e-pot level
control
Front Panel
LEDs & Switches
Line Codec
Channel Select
Progammable
e-pot level
control
EEPROM
Aux O/Ps
Aux I/Ps
Digital
Signal
Processor
Test Mic
PGM800Win Interface
Micro
Controller
Power Alarm I/Ps
RAM
Tx Key
RX Audio
Rx Mute
Radio Codec
TX Audio
A/D
CTCSS Defeat
Voltage Sense
Speaker
RSSI
Figure 2.1 High Level Block Diagram
The T803 is connected to a leased line from control room equipment by means of an
RJ45 connector. 600R transformers are used to couple the audio into and out of the T803.
On the secondary of these line matching transformers are analogue transmission
switches which configure the line interface as either 2-wire or 4-wire compatible. Audio
from line is passed through a programmable electronic potentiometer (e-pot) level control circuit before entering a CODEC where it is digitised. Audio to line is output from
the same line CODEC, via a second programmable e-pot level control circuit.
The line CODEC is connected to a digital signal processor (DSP) which is also connected
to a similar radio CODEC (the CTCSS CODEC is not used in this application). The radio
CODEC receives audio from the T800 receiver and sends audio to the T800 transmitter
to which it is connected via the special backplane PCB. Receiver audio is low frequency
filtered to extend the radio CODEC’s effective frequency range.
The DSP processes the digitised audio streams from the CODECs in accord with instructions sent to it by the T803’s microcontroller. The DSP can:
• detect high level guard tone, low level guard tone and function tones coming
from line, notch filter line in and receiver audio (used to eliminate low level
guard tone from line out and transmitter audio);
• generate Selcall DTMF/function tone alarms and pip tones to Line-Out and
transmitter audio;
• generate voting tones to Line-Out;
• generate morse code to transmitter audio;
• cross connect line and radio audio paths;
• adjusts the Line-In and Line-Out levels;
© Copyright Tait Electronics Limited August 2004. All rights reserved.
D2.4
Circuit Operation
M8SL2-00-002-812
• mute audio from Line-In and receiver;
• delay the audio.
The microcontroller boot loads the DSP, interfaces with the user via the front panel
switches and LEDs, interfaces with PGM800Win and runs the T803 state machines
(alarm monitoring, alarm tone generation, high level guard tone/function tone/low
level guard tone timing, RSSI/voting tone conversion etc.).
2.2
Tone Detection
In the quiescent state, audio on the Line-In pair is passed through the DSP (IC300) unfiltered to the T803 loudspeaker (which is connected to Tx audio – TP203). The audio is
bandpass filtered to detect guard tone. In normal operation (keytone and function tone
operation) the tone detector threshold is set for high level guard tone (HLGT).
If HLGT is detected, the DSP signals this detection to the micro using the
TONE_DETECT line (TP300 is pulled low). The micro instructs the DSP, using the asynchronous serial communications connection (TP306) between them, to switch on the in
line guard tone notch filter, lower the threshold of the guard tone detector (so that it can
detect low level guard tone – LLGT) and turn on the function tone detectors.
Where the T803 is operating in 2-wire mode and receiver audio (RX audio) is being
gated to line, the micro will soft mute the RX audio first). The micro then starts an internal timer, the duration of which is set by the HLGT and function tone times programmed by PGM800Win.
If a function tone is detected, the DSP signals the micro using the CALL_UP line (TP301
pulled low). The micro then interrogates the DSP via the serial communications connection to find out what frequency was detected.
If no tones are detected and the timer expires, the micro resets the DSP to its quiescent
state. If two different frequencies are detected or if only one function tone frequency is
decoded and the timer expires, the micro decodes them/it into an action by reading
data programmed into the EEPROM (IC312) by PGM800Win. The micro then keys on
the transmitter (PTT line) and instructs the DSP to turn off the function tone detectors
and the talk-through gate (if it was on). If the function tone sequence decodes into a
channel number that is different from the currently set channel, the micro will output
the channel number on CH0 – CH7 for 250ms. This change may be latched into the T800
radios providing the sub-rack PCB channel select switches do not create a conflict.
As long as the DSP is detecting LLGT (indicated by a low level on TP300) the micro will
keep the transmitter keyed on. When the DSP fails to detect LLGT the micro turns off
the transmitter key and returns the DSP to the quiescent state.
When the T803 is programmed for keytone-only operation, the micro keying of the
transmitter follows the state of the TONE_DETECT line from the DSP.
In the quiescent state when the receiver mute line (RX_MUTE) goes low, the micro
instructs the DSP to gate audio from the receiver to Line-Out. If the line interface is 2wire, Line-In and Line-Out are joined and the Rx audio will pass through the line inter-
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
Circuit Operation
D2.5
nally to the loudspeaker. It will therefore also reach the guard tone detector. Rx audio is
therefore notch filtered at the guard tone frequency to prevent false guard tone detection. If the line interface is 4-wire this filtering is unnecessary but the talk-through gate
must be turned on to send Rx audio to the loudspeaker. If the T803 is in repeater mode
the transmitter is keyed and will remain so until the RX_MUTE line goes high. Note that
the T803 will not key the transmitter if the receiver’s CTCSS is defeated (CD_OUT is
low) to prevent receiver channel noise being transmitted.
From the description above of the keytone/function tone detection it can be seen that
keying from line has priority over repeater mode keying and audio gating.
2.3
Alarm Monitoring
The T803 microprocessor monitors eight alarm sources:
• Transmitter forward power
• Transmitter reverse power
• low battery
• line fail
• four external closure alarms
When an alarm is triggered it is latched as indicated by the corresponding LED on the
front panel. If the T803 is keying the transmitter or sending receiver audio to the line the
latched alarm is ignored. Once the T803 re-enters the idle state the latched alarms are
actioned. The microprocessor reads the EEPROM to determine what tone sequence the
user programmed and instructs the DSP accordingly. If the tone sequence is to be sent to
the transmitter, it is keyed 500ms before the tones are generated. Additionally the user
may program any of the 4 auxiliary output ports as a response to an alarm event. The
micro will activate (pull low) these outputs if enabled. If several alarms are latched
together they are actioned in the order of priority:
1. External closure alarms 0 to 3
2. Reverse power
3. Forward power
4. Low battery
5. Line fail
If the programmed alarm action is a pip tone, the micro will instruct the DSP to append
200ms burst of 600Hz tone to each transmission (to line and/or radio).
Note:
Sub-rack alarms (Fwd and Rev Power, Low battery or Line fail) cannot be
re-triggered until they are cleared. The 4 external closure alarms however
will re-send any user programmed tone sequence if re-triggered when
already latched.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
D2.6
Circuit Operation
2.3.1
Alarm Triggers
M8SL2-00-002-812
The alarms are triggered according to their type.
Priority
Alarm Type
Trigger Type
Re-triggerable
when latched
LED
colour
1
Auxiliary Input 0
to Input 3
External closure. Sampled
every 50ms
Yes
Green
2
Reverse Power
3
Forward Power
Sampled every 50ms
while the T803 is keying
the transmitter. Incororates a 2s settling time.
No
Red
4
Low Battery
Voltage must be below
the programmed threshold for 25s of a 30s period.
No
Red
5
Line Fail
Programmable non-activity time period
No
Red
Table 2.1 Alarm Summary Table
External Closure Alarm (Auxiliary Input Alarms)
The 8 bit input latch (IC202) is sampled every 50ms. If two successive samples are the
same value then the state of the closure alarms is tested (This has the effect of debouncing the alarm inputs). If any alarm is low then those alarms are latched.
RF Power Alarm
The forward and reverse power alarms are only tested when the T803 is keying the
transmitter. The alarms must be active (low) for two seconds before they are latched.
The two seconds sampling period allows for settling time inherent in some older T800
PA designs. Note that if a Transmitter fitted with a T1500-52-0000 PCB is being used,
rack backplane links LK1 and LK2 must be fitted at power up.
Low Battery Alarm
The 13.8V supply line voltage is measured by the A/D converter (IC208) every 50ms. If
the voltage is below the programmed alarm threshold (±0.05V) for more than 25 seconds of a 30 second sampling period, the alarm is latched. The long sampling period
allows for load fluctuation effects on the supply.
Programmable low voltage threshold is only available in T803 firmware version 2.11 or
later. Prior to this, the threshold was fixed at 10.7V ±0.05V.
Line Fail Alarm
If no keying from line occurs within the period programmed by the user from
PGM800Win, the microprocessor latches this alarm, saves the mode status and puts the
T803 into repeater mode. Note that programming zero as the line fail time disables this
alarm.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
2.4
Circuit Operation
D2.7
Confirmations
Additional to alarms the T803 microprocessor also monitors eight non-alarm triggers
known as Confirmations:
• Power-up
• Channel change
• Up to six user defined function tone inputs
The T803 micro responds to a confirmation trigger in the same way as it does to an
alarm trigger – depending on what has been programmed into the EEPROM, a tone
sequence may be sent, an auxiliary output enabled and/or a pip tone enabled. These are
all actioned by the micro with the same rules as for alarm triggers. The only difference is
that there are no LEDs associated with confirmations.
If several confirmations are triggered together they are actioned in the following order
of priority: Power-up, Channel change and then User Confirmation 0 to 5. If several
alarms and confirmations are triggered together the Power-up confirmation, if enabled,
is always actioned first, followed by any alarms and then any other confirmations, both
in their normal priority order.
Note:
Confirmations will re-send any user programmed tone sequence if re-triggered.
2.5
Clearing Alarms and Confirmations
The alarms can be cleared by either pressing both front panel switches together or sending the T803 a correctly programmed (“Clear Alarms”) function tone. All alarms are
cleared together. Clearing alarms turns off all LEDs, cancels any associated pip tones
and resets auxiliary outputs. If an alarm condition is still valid when it is cleared, it will
be re-latched and the user-programmed action will be executed. If required, pip tones
can be cleared separately (leaving alarms latched) by using a “Clear Alarm/Confirmation Pip tones” function tone.
When the Line fail alarm is cleared, the T803 will revert to the mode it was in (Basestation or Repeater) before the alarm was triggered. A keying sequence from line can also
clear this alarm in the same way except that the pip tone will not be cleared if used by
other latched alarms. Line fail is the only alarm that can be cleared individually in this
way.
Confirmations can not be cleared by a single command like the Alarms. Confirmation
pip tones are cancelled by using a “Clear Alarm/Confirmation Pip tones” programmed
function tone and the auxiliary outputs are individually reset by using a “Turn OFF
Auxiliary output (x)” function tone.
It is possible to have more than one Alarm or Confirmation using the pip tone. In this
situation the clearing behaviour must be carefully considered:
• Line Fail Pip – Cleared by line keying-sequence only if pip tone is not ‘active’
for other Alarms and/or Confirmations.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
D2.8
Circuit Operation
M8SL2-00-002-812
• Alarm Pips (including Line Fail) – Cleared by “Clear Alarms” command only if
confirmation pips are not ‘active’. Always cleared by “Clear Alarm/Confirmation Pip tones“ command.
• Confirmation Pips – Cleared by “Clear Alarm/Confirmation Pip tones” command.
Additionally, it is also possible to have a single auxiliary output assigned to more than
one alarm or confirmation. However, be aware that any command that resets auxiliary
outputs, such as “Clear Alarms” or “Toggle Auxiliary Output (x)”, will not make any
check for multiple use – auxiliary outputs will be reset regardless.
2.6
Voting Tone Operation
When the T803 is programmed to generate a tone on idle, the microprocessor monitors
the receiver Mute-In signal. When it is high (receiver muted) the DSP is instructed to
generate a voting tone to Line-Out. When receiver Mute-In is low the voting tone is
turned off. To prevent false detection of the idle tone at the far end voting equipment,
the DSP filters energy at the idle tone frequency from the receiver audio transmitted to
Line-Out.
If the T803 is programmed to generate a Sliding (or Simoco compatible) Voting Tone the
microprocessor reads the receiver RSSI level every 6ms using the A/D converter and
sends this value to the DSP. The DSP generates a voting tone to Line-Out. The tone frequency is proportional to the RSSI level. To prevent incorrect operation of the far end
voting equipment, the DSP low pass filters the receiver audio transmitted to Line-Out.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Line
Figure 2.2 Signal Flow
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Select
2w/4w
Gain
Gain
2W/4W Select
A/D
D/A
Line Codec
Numeric
Scaling
Voting Tone
Generator
BandPass
Filter
Test Tone
Generator
Audio
Delay
5Tone/Pip Tone
Generator
Soft
Mute
Serial Coms
Voting Tone
Lowpass Filter
Tone on Idle
Notch Filter
Guard Tone
Notch Filter
Sliding
Voting
Tone on
Idle
4W
2W
Test Tone
Generator
Morse Code
Generator
Audio
Delay
Talk Through
5Tone/Pip Tone
Generator
No Voting
Soft
Mute
Tasklist/Data
Guard Tone
Notch Filter
Data
High Speed Serial Coms
Call Micro
State Machine Control
Line Loopback
Function Tone
Detection
Tone Detect
Guard Tone Detect
Numeric
Scaling
DSP
Micro
Numeric
Scaling
Numeric
Scaling
D/A
A/D
Radio Codec
RX Audio
TX Audio
M8SL2-00-002-812
Circuit Operation
D2.9
D2.10
Circuit Operation
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Installation and Configuration
M8SL2-00-002-812
3
D3.1
Installation and Configuration
Caution:
This equipment contains CMOS devices which are susceptible to damage from static charges. Refer to Section 1.2 in Part A for anti-static procedures for handling these devices.
This section of the manual describes how to install and configure the T803 in a T800 SL2
sub-rack and test that it is functioning correctly. It also provides a brief fault finding procedure.
Unless otherwise specified, the term “PGM800Win” used in this and following sections refers to version 4.02 or later of the programming software.
Note:
Refer to Section 4 where the parts lists, grid reference index and diagrams will provide
detailed information on identifying and locating components and test points on the
main PCB.
The following topics are covered in this section.
Section
3.1
Title
Page
Installation
3.3
3.1.1
Backplane Configuration
3.3
3.1.2
3.1.2.1
3.1.2.2
Auxiliary Inputs/Outputs
Auxiliary Alarms Inputs
Auxiliary Control Outputs
3.5
3.6
3.6
3.1.3
Line Interface
3.6
T803 Configuration
3.7
3.2.1
Equipment Setup for Level Configuration.
3.8
3.2.2
Use of Test Microphone
3.8
3.2.3
Test Modes
3.9
3.2.4
3.2.4.1
3.2.4.2
3.2.4.3
3.2.4.4
Level Configuration
Tx Audio – Audio Level from T803 to Transmitter
Line-In Level
Rx Audio – Audio Level from Receiver to T803
Line-Out Level
3.10
3.11
3.11
3.12
3.15
Fault Finding
3.15
Troubleshooting
3.16
3.2
3.3
3.3.1
© Copyright Tait Electronics Limited August 2004. All rights reserved.
D3.2
Installation and Configuration
Figure
M8SL2-00-002-812
Title
Page
3.1
X800-56-PCB3 backplane connectors, links and switches
3.4
3.2
T803 setup
3.7
3.3
Rack and test equipment setup
3.8
3.4
Cycle of switching between the modes
3.8
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Installation and Configuration
M8SL2-00-002-812
3.1
Installation
3.1.1
Backplane Configuration
D3.3
To support the T803-02 Tone Remote an X800-56-PCB3 backplane should be fitted to the
T800 SL2. The backplane should be configured as described in the following table.
These are the default factory settings (for SL2 with T803).
Link
Setting
Function
Notes
LN1 and LN2
Not fitted as standard
Talk-through audio path (balanced)
LN3
Not fitted as standard
Talk-through Rx-gate to Tx-Key
LN4
Link pins 2 – 3
For Serial Comms with the T803
LN5 and LN12
Not required for T803
Associated with TX-Relay-Driver output from transmitter
LN6
Not required for T803
Determines I/O on pin 11 of SK6
LN7
Not required for T803
External CTCSS Audio to Transmitter
Link pins 1 – 2
Unbalanced Rx Audio (‘Audio1’) to
T803. Not to be used when CTCSS is
present on RX audio as internal CTCSS
filtering cannot be applied to this path.
For CTCSS use the option below.
Adjust level using RV2.
Level to T803 independent of Rx Line Level
control. See Section
3.2.4.3
Link Pins 2 – 3 and Pins 4
– 5 (recommended)
Changes the balanced Rx Line audio
output to unbalanced for the T803. This
option should be used when CTCSS is
present on RX audio so that the internal
CTCSS filtering can be applied.
Level to T803 controlled
by RX Line Level control. Note: Balanced Rx
to TX audio becomes
unavailable with this
setup. See Section
3.2.4.3
LN9
Link pins 2 – 3
FWD power alarm signal to T803.
LN10
Link pins 2 – 3
REV power alarm signal to T803.
LN11
Fitted
RX CTCSS disable
LN8
© Copyright Tait Electronics Limited August 2004. All rights reserved.
See SW2 settings below
See Section 6.2 in Part G
Internal alarm board
must be fitted to T854.
See Section 3.10 in Part
C
See Section 6.2 in Part G
D3.4
Switch
Installation and Configuration
Setting
M8SL2-00-002-812
Function
Notes
SW1
Set all switches to OFF
Channel select via T803 and or PGM800Win
SW2
Set switch 4 and 5 to ON
For Serial Comms with the Tx, Rx and T803
See LN4 settings
above
Set switch 1 to ON
Rx Audio to T803
See LN8 settings
Set switch 2 and 3 to ON
Balanced audio from T803 to transmitter
Set switch 4 to ON
RSSI from receiver to T803
Set switch 5 to ON
Tx-Key from T803
Set switch 6 to ON
Rx-Gate to T803
SW3
Note:
For correct power alarm operation these links should be correctly set before
power-up.
Figure 3.1 X800-56-PCB3 backplane connectors, links and switches
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Installation and Configuration
M8SL2-00-002-812
3.1.2
D3.5
Auxiliary Inputs/Outputs
The 15-way female D-range connector (SK13) located on the X800-56-PCB3 backplane
board allows for external connection to a number of T803 inputs and outputs. These
include the four T803 alarm inputs and the four T803 auxiliary outputs. Refer to Section
6.2 in Part G for backplane circuit and overlay diagrams.
The table below indicates the pin assignments of SK13
Pin
1
Name
+13.8V
2
Signal path
Logic
Description and specifications
Output
—
+13.8VDC output. Maximum current = 900mA
Receiver output –
with SW3-1 in ON
position (normal)
—
Unbalanced audio output from the receiver.
Should only be used with high impedance
loads (>10kW )
T803 input – with
SW3-1 in OFF position
—
Unbalanced high impedance audio input
(>10kW ) to the T803. Level required for correct T803 operation = 230mVrms
T803 output
—
RX-AUDIO-1-1
3
TX_EX LINE1_1
4
TX_EX LINE4_1
5
TONE REMOTE
ALARM 0
T803 Alarm Input0.
Maximum input voltage = 5V
6
TONE REMOTE
ALARM 1
T803 Alarm Input1.
Maximum input voltage =5V
7
TONE REMOTE
ALARM 2
8
TONE REMOTE
ALARM 3
—
T803 input
9
5V CMOS 0V =
active
Parallel connection to the 600Ω balanced Tx
Audio path between the T803 and the Transmitter. Connection to these lines must be done
using a high impedance load to not upset the
match/levels. Output level = –4.4dBm (when
the T803 Line-In level is properly set-up or
when the T803 is in Test Mode).
T803 Alarm Input2.
Maximum input voltage =5V
T803 Alarm Input3.
Maximum input voltage =5V
Receiver output
with SW3-6 in ON
position (normal).
Open collector 0V
= audio
Max applied voltage = 40V
Maximum sink current = 150mA
T803 input with
SW3-6 in OFF position.
5V logic < 1.5V =
audio
Maximum applied voltage = 5V
T803 output
Open collector 0V
= active
Maximum applied voltage = 50V
Maximum sink current = 250mA
RX-GATE-1
10
TX_KEY_1
11
TONE REMOTE
AUX0
T803 Auxiliary Output 0.
Maximum applied voltage = 50V
Maximum sink current = 250mA
12
TONE REMOTE
AUX1
T803 Auxiliary Output 1.
Maximum applied voltage = 50V
Maximum sink current = 250mA
T803 output
Open collector 0V
= active
13
TONE REMOTE
AUX2
T803 Auxiliary Output 2.
Maximum applied voltage = 50V
Maximum sink current = 250mA
14
TONE REMOTE
AUX3
T803 Auxiliary Output 3.
Maximum applied voltage = 50V
Maximum sink current = 250mA
15
GND
—
—
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Ground
D3.6
Installation and Configuration
3.1.2.1
Auxiliary Alarms Inputs
M8SL2-00-002-812
The T803-02 has 4 closure alarm inputs. On every falling edge the associated alarm is
(re)triggered, and sent when the T803 becomes idle. Alarm0 has higher priority than
Alarm3, in that the alarm will be actioned first.
Maximum input voltage = 5V
Note:
The behaviour is different from the T803-00 as it will resend any user programmed tone sequence if re-triggered when already latched.
3.1.2.2
Auxiliary Control Outputs
The 4 Auxiliary outputs are of common collector type (they will only sink current), and
are rated to a maximum of 50V and 250mA. The outputs can be controlled via a function
tone sequence (Enable, Toggle, or Disable) or enabled on an alarm or confirmation.
3.1.3
Line Interface
The following table describes the pin configuration for interfacing with the T803 on
4-wire and 2-wire networks.
RJ45 pins
4-Wire
2-Wire
3
LineOut+
NC
4
LineIn+
Line-In/Out
5
LineIn-
Line-In/Out
6
LineOut-
NC
The T803 accommodates an input signal range of 28dB. Normally this is sufficient, however by shorting JP200 (found on the T803 PCB) an extra 15dB gain is added.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Installation and Configuration
M8SL2-00-002-812
3.2
D3.7
T803 Configuration
Before using the T803, line input (the level from the receiver) and output level (the level
presented to the radio transmitter) need to be properly configured.
Base Station
Audio level from T803 to Tx adjusted
using Line Sensitivity control.
(for 60% full system deviation)
Tx
Line In configured using
PGM800Win or T803 Test mode.
Line in
T803
Line out
Dispatch
Console
Line Out configured using
PGM800Win or T803 Test mode.
Rx
Audio level from Rx to T803 adjusted
using RV2 on backplane or Line
Level control on Rx. (230mVrms)
See Section 3.2.4.3.
Figure 3.2 T803 setup
The Line-In/Line-Out levels can be set up using either the programming application
(PGM800Win) or the test modes of the T803 (accessed via the buttons on the front panel.
See Section 3.2.3). The advantage of the test mode method is that it can provide a direct
test of the system. The programming method is required when access to the dispatch
console is difficult.
Using the test modes, the T803 levels are set up using actual signals present on the line.
For the Line-In level, the test tone and keytone, are generated by the dispatch console
and sent to the T803 via the leased line (or an audio generator could be used with the
line loss simulated). For the Line-Out level, the test tone is generated by the T803.
Programming the Line-In/Line-Out levels using PGM800Win does not require any connection to the line. However, input/output specifications of the dispatch console and
actual line loss must be known so that the T803 levels can be properly calculated and
programmed.
Setting up receiver and transmitter levels can only be done using T803 test modes and/
or measurement. These levels are not programmable.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
D3.8
Installation and Configuration
3.2.1
Equipment Setup for Level Configuration.
M8SL2-00-002-812
Configuring the T803 Line levels (using PGM800Win or Test Mode) and radio receiver
or transmitter levels requires the sub-rack and test equipment to be set up as shown
below.
Audio meter
or
Remote
Controller
This test equipment is
required for the Test Mode
method. It is optional for
the PGM800Win method.
RF TEST SET
Output
Input
Line Loss
(simulated
or actual)
Line
matching
Attn
TB8SL2
T856
T854
RX
TX
T800-23
T803
PSU
Figure 3.3 Rack and test equipment setup
Remove any coaxial relay or duplexer in the T800 modules’ RF path and connect them
directly to an RF Test Set. Ensure that transmitter or PA RF output is sufficiently attenuated to prevent damage to the test set.
Run up the receiver and transmitter as instructed in Part B and C of this manual.
3.2.2
Use of Test Microphone
The T803 test microphone is used to communicate both on air to radios and down the
line to dispatch consoles. It plugs into the RJ11 connector on the front panel which doubles as a programming port. It is electrically connected in parallel with the receiver
(microphone with receiver audio and PTT button with receiver mute).
Most dispatch consoles are equipped with an intercom facility whereby speech can be
sent to line without a keytone. This enables the dispatcher to talk to service personnel at
the repeater site using the T803’s built in speaker without broadcasting speech to air.
The service personnel can talk back to the dispatcher using the T803 test microphone
(the PTT must be pressed to gate microphone speech).
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
Installation and Configuration
D3.9
Note:
If the T803 is in repeater mode, PTT on the test microphone will key-on the
transmitter and thus broadcast test speech to air.
3.2.3
Test Modes
The T803 has three test modes to assist with setting levels:
• Test Tone Mode
• Line-In Level Configuration Mode
• Line-Out Level Configuration Mode1
To enter the test modes, press the Monitor and Mode Toggle buttons on the front panel
simultaneously for three seconds. The alarm LEDs will start flashing colours and travelling up and down the display to indicate Test Tone Mode. The T803 will key-on the
transmitter and encode a 1kHz test tone to the transmitter for one minute. The test tone
can also be heard on the T803 speaker.
While still in Test Tone Mode, simultaneously pressing the Monitor and Mode Toggle
buttons briefly will change the mode to Line-In Level Configuration Mode. All the
LEDs will be on — either entirely red or entirely green.
• Green = Keytone present. T803 will key-on the transmitter.
• Red = No keytone present
While still in Line-In Level Configuration Mode, simultaneously pressing the Monitor
and Mode Toggle buttons again will change the mode to Line-Out Configuration
Mode1. To indicate this, all the LEDs will be orange.
Note:
After entering each mode, a one to two second pause is required before
attempting the simultaneous press to enter the next mode (or to exit).
While in Line-In or Line-Out Configuration Mode, the Monitor and Mode Toggle buttons operate as ‘gain’ adjust buttons. A short press on the Monitor button will increase
the Line-In/Line-Out gain and toggle the top alarm LED on or off, indicating a level
increase. The LED will no longer toggle (it will stay on) when the top of the range has
been reached. Conversely the Mode Toggle button will decrease the gain and toggle the
bottom alarm LED. Again, the LED stays on when the bottom of the range has been
reached. In both of these modes Line-In audio can be heard on the monitor speaker.
To exit Line-Out Configuration Mode, briefly press both buttons again. Alternatively,
the unit will automatically return to normal operation mode after one minute. (This
occurs in all three test modes).
Note:
These levels are always preserved on exit. Take care not to change them
unintentionally during simultaneous button press.
1. Line-Out Configuration Mode is only available in T803 firmware version 2.07 or later.
For firmware versions prior to 2.07, a simultaneous button press while in Line-In Configuration Mode will exit Test Mode .
© Copyright Tait Electronics Limited August 2004. All rights reserved.
D3.10
Installation and Configuration
Monitor = Monitor On/Off
Mode = Base Station/Repeater
M8SL2-00-002-812
Monitor = Monitor On/Off
Mode = Base station/Repeater
Monitor & Mode
held (3 sec)
Test Tone
(Flashing LED’s)
Normal
Operating
Mode
Time out (1 min)
Time out (1 min)
Monitor & Mode pressed simultaneously
Line-In Level Configuration
(Green LED = Keytone,
Red LED = No keytone)
Monitor = Increase level
Mode = Decrease level
Monitor & Mode pressed simultaneously (v2.07+)
Monitor & Mode pressed
or time out (1 min)
Line-Out Level Configuration
(LED = Orange)
Monitor = Increase level
Mode = Decrease level
Figure 3.4 Cycle of switching between the modes
3.2.4
Level Configuration
Before proceeding with any level configuration the transmitter and receiver must be
run-up and configured for the application. Also, ensure that the equipment has been set
up correctly as indicated in Section 3.2.1. It is important that the T800 Transmitter output is connected to the Test Set (through an attenuator as required) because it will often
be keyed during these level setting procedures.
The following levels need to be set:
• Tx Audio – Audio level from T803 to transmitter (balanced)
• Line-In level
• Rx Audio – Audio level from receiver to T803 (unbalanced)
• Line-Out level
The only consideration of order is that the Tx Audio level needs to be configured before
the Line-In level can be done.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
3.2.4.1
Installation and Configuration
D3.11
Tx Audio – Audio Level from T803 to Transmitter
The level of audio received from the T803 is adjusted at the input of the transmitter.
1.
Set the T803 into Test Tone Mode (See Section 3.2.3)
2.
Adjust the Line Sensitivity Control on the front panel of the transmitter to give a
reading on the RF Test Set of 60% full system deviation (compensate for any
CTCSS tone deviation).
Narrow Band
Wide Band
Channel Spacing
12.5kHz
25kHz
Maximum deviation (specifications)
2.5kHz
5kHz
60% of maximum deviation
1.5kHz
3.0kHz
3.2.4.2
Line-In Level
The Line-In level can be set up in two ways:
• On the T803 in Level Configuration Mode
• Using PGM800Win programming software.
Using Level Configuration Mode:
Note:
The Tx audio level must be set up before starting this procedure (Section
3.2.4.1).
1.
Set the T803 into Line-In Level Configuration Mode (See Section 3.2.3).
2.
Connect a dispatch console to the far end of the line, or simulate the console and
line loss using an audio generator.
3.
Press the PTT on the dispatch console. This will send a keytone to the T803.
Ensure the console also sends a test tone at speech level to line (this tone is
required for this method of configuring the Line-In level).
4.
The alarm LEDs on the front panel of the T803 should change to green (indicating
that a keytone has been detected) for as long as the PTT is pressed.
5.
Adjust the Line-In level by pressing the Monitor button (increases the level) or the
Mode Toggle button (decreases the level) until the transmitter deviation reading,
monitored on the RF Test Set, indicates 60% full system deviation (compensate for
any CTCSS tone deviation).
6.
Press the PTT on the dispatch console again, but this time use speech instead of
the test tone. Ensure the LEDs on the T803 remain constant on green during
speech transmission. If not see Section 3.3.1 (point 7) on how to troubleshoot for
Talkoff.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
D3.12
Installation and Configuration
Note:
The monitor speaker is forced on in this mode so that the test-microphone
may be used as an intercom to communicate to the dispatcher room (See
Section 3.2.2).
M8SL2-00-002-812
Using PGM800 software:
1.
Determine the output level of the console. This may be a preset or default value
specified in the console’s manual or a value programmed by the operator.
2.
Determine the actual line-loss between the console and the T803.
3.
Calculate T803 Line-In Level as follows:
T803 Line-In Level = console output level (dBm) – Line-loss (dB)
4.
Program the T803 with the calculated level.
Example case:
Console output level =–13dBm
Measured Line loss = 6.5dBm
T803 Line-In level =–13 – 6.5 = –19.5dBm
3.2.4.3
Rx Audio – Audio Level from Receiver to T803
The Rx Audio level is adjusted using either the Line Level control on the front of the
receiver or the RV2 potentiometer on the backplane, depending on the configuration of
the link LN8 on the backplane.
The recommended (and default) configuration of LN8 is with pins 2–3 and 4–5
linked. With this configuration the balanced audio from the receiver (Rx-Line-1 and RxLine-4 ) is changed to unbalanced audio for the T803 (this means the Rx Line output can
no longer be used as direct balanced audio to the transmitter). The level to the T803 is
adjusted using the Line Level control on the front of the receiver. The advantage of
using this path is that it allows CTCSS filtering to be applied (using the receiver’s internal CTCSS filter. See Section 3.5 in Part B).
Alternatively if CTCSS is not used, the receiver unbalanced audio output (Rx-Audio-1)
can be used to provide audio to the T803 by linking pins 1–2 on LN8. In this case the
level to the T803 is adjusted using the RV2 potentiometer on the backplane. This audio
path is not suitable for CTCSS systems because complete CTCSS filtering cannot be
applied. The only filtering directly available is the optional receiver de-emphasis filtering. See Section 3.5 in Part B. The T803 does however apply a 160Hz to 3kHz high pass
filter resulting in an overall audio response for this path very similar to the default high
pass filtered receiver balanced Line output. See the table below.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Installation and Configuration
M8SL2-00-002-812
Receiver/T803
system
D3.13
Backplane
links (LN8)
Adjustment of Rx
Audio to T803
With CTCSS on
Rx audio
Link pins 2–3
and pins 4–5
Line Level control on the
front of the Receiver
Receiver internal CTCSS filter should
be included in the path (see Section
3.5 in Part B)
400Hz to 3kHz
No CTCSS on Rx
audio
Link pins 2–3
and pins 4–5
Line Level control on the
front of the receiver
Receiver internal CTCSS filter not in
path but high pass filter in path (Rx
default setup)
220Hz to 3kHz
No CTCSS on Rx
audio
Link pins 1–2
RV2 on the backplane
T803 high pass filter only
160Hz to 3kHz
Audio Frequency Response
The table above shows that configuring LN8 with links 2–3 and 4–5 could be used for
systems with or without CTCSS. Configuring LN8 with link 1–2 in normally only used
with systems without CTCSS on the Rx audio.
Procedure
Before commencing this procedure set up the receiver audio processing, such as deemphasis and CTCSS filtering, as required for the application. See Section 3.5 in Part B.
This is important for the T803 Telecom line compliance. See the Caution below.
CAUTION:
The Rx audio level must not exceed 230mVrms at 60% full system deviation. This will ensure that the actual T803 Line-Out level corresponds
to the programmed value and thus ensures levels do not exceed the
power level requirements of the Telecommunications line.
There are three possible ways to monitor the Rx Audio level during adjustment:
• Direct measurement of receiver audio on the backplane
• Indirectly, using transmitter deviation
• Indirectly, using the T803 Line-Out level
Direct measurement of receiver audio on the backplane:
1.
Use the RF Test Set to generate an on-channel signal to un-mute the receiver.
2.
Modulate the RF carrier with a 1020Hz tone1 at 60% full system deviation, adding
CTCSS tone for a CTCSS system (ensure that CTCSS filtering is applied in the
receiver as required for the application. See Section 3.5 in Part B).
3.
Monitor the audio level from the receiver on the X800-56-PCB3 backplane at pin2
of LN8, with the links (jumpers) in place as directed in Section 3.1.1. Use a high
impedance meter such as an oscilloscope for the measurement.
1. A 1020Hz tone is used (rather than 1kHz) because some Test Sets can produce unstable
deviation readings
© Copyright Tait Electronics Limited August 2004. All rights reserved.
D3.14
4.
Installation and Configuration
M8SL2-00-002-812
For LN8 with pins 2–3 and 4–5 linked, adjust the line level control on the front of
the receiver for an audio level of 230mVrms.
For LN8 with pins 1–2 linked, adjust RV2 on the backplane for an audio level of
230mVrms.
Using transmitter deviation:
This method is not suitable for simplex configured repeaters.
1.
Use the RF Test Set to generate an on-channel signal to un-mute the receiver.
2.
Modulate the RF carrier with a 1020Hz tone1 at 60% full system deviation, adding
CTCSS tone for a CTCSS system (ensure that CTCSS filtering is applied in the
receiver as required for the actual working system. See Section 3.5 in Part B).
3.
Put the T803 unit into Talk Through Mode (also known as Repeater Mode) using
the Mode Toggle button1. The Mode LED should be red, constant or flashing, and
the transmitter should be keyed on.
4.
For LN8 with pins 2–3 and 4–5 linked, adjust the Line Level control on the front
of the receiver to produce 60% full system deviation at the transmitter RF output
as measured on the test set.
5.
For LN8 with pins 1–2 linked, adjust RV2 on the backplane to produce 60% full
system deviation at the transmitter RF output as measured on the test set.
Note:
De-Emphasis should be off on the test set receiver.
Using the T803 Line-Out level:
1.
Use the RF test set to generate an on-channel signal to un-mute the receiver.
2.
Modulate the RF carrier with a 1020Hz tone2 at 60% full system deviation, adding
CTCSS tone for a CTCSS system (ensure that CTCSS filtering is applied in the
receiver as required for the actual working system. See Section 3.5 in Part B).
3.
Put the T803 into Base Station Mode using the Mode Toggle button1. The Mode
LED should be green (constant or flashing).
4.
For LN8 with pins 2–3 and 4–5 linked, monitor the T803 Line-Out level (600Ω balanced audio) and by adjusting the Line Level control on the front of the receiver,
set this level to equal the programmed ‘Line-Out Level’ as set in PGM800Win.
For LN8 with pins 1–2 linked, monitor the T803 Line-Out level (600Ω balanced
audio) and by adjusting RV2 on the backplane, set this level to equal the programmed ‘Line-Out Level’ as set in PGM800Win.
1. The Mode Toggle button may be disabled from PGM800Win
2. A 1020Hz tone is used (rather than 1kHz) because some Test Sets can produce unstable
deviation readings
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
3.2.4.4
Installation and Configuration
D3.15
Line-Out Level
The Line-Out Level can be set up in two ways:
• On the T803 in Level Configuration Mode
• Using PGM800Win programming software (version 4.02 or later).
Using Level Configuration Mode (T803 firmware version 2.07 or later):
1.
Set the T803 into Line-Out Level Configuration Mode (See Section 3.2.3).
2.
Use the RF Test Set to generate an on-channel signal to un-mute the receiver.
3.
Modulate the RF carrier with a 1020Hz tone at 60% full system deviation, adding
CTCSS tone if necessary (ensure that CTCSS tone is removed from the receiver
audio output by selecting the correct links inside the receiver).
4.
Monitor the T803 Line-Out level and adjust by pressing the Monitor button
(increases the level) or the Mode Toggle button (decreases the level) until the level
is acceptable at the dispatch console.
Note:
The monitor speaker is forced on in this mode so the test-microphone may
be used as an intercom to communicate to the dispatcher room (See Section
3.2.2).
Using PGM800Win software:
1.
Determine the input level required at the dispatch console. This may be a preset or
default value specified in the console’s manual or a value programmed by the
operator.
2.
Determine the actual line-loss between the console and the T803.
3.
Calculate T803 Line-Out Level as follows:
T803 Line-Out Level = console input level (dBm) + Line-loss (dB)
4.
Program the T803 with the calculated level.
Example case:
Console input level = –13dBm
Measured Line loss = 6.5dBm
T803 Line-Out level = –13 + 6.5 = –6.5dBm
3.3
1.
Fault Finding
Connect the T803 to its companion dispatch console via the leased line. Check that
speech sent from the console can be heard on the T803 speaker (un-mute speaker
if required).
© Copyright Tait Electronics Limited August 2004. All rights reserved.
D3.16
Installation and Configuration
M8SL2-00-002-812
One possible cause of incorrect operation is that the line connections have become
transposed in the wiring network or that the dispatch terminal uses different
Send/Receive pairs.
2.
Use the dispatch console to key-on the transmitter. If the transmitter does not keyon, check that the console and T803 have been compatibly programmed.
• check 2-wire or 4-wire
• check the keytone frequency
• check if function tones are used
• check high level guard tone and function tone periods (if used) are the same
Finally check that the console is sending appropriate signal levels and that tone
durations are correct (which are often variable), and that the line is not causing
unacceptable attenuation or distortion.
3.
If the console can key the transmitter but not change Repeater/Basestation Mode,
auxiliary outputs, receiver defeat or cancel alarms, carry out the checks in Step 2
above, but pay particular attention to the function tone programming.
If changing channels is a problem check that the appropriate channel selection
DIP switches (SW1) on the rack backplane are off.
3.3.1
1.
Troubleshooting
Sometimes misses function tone command
Set up the Line-In level so that the function tones are about 2Vpp at TP204.
2.
Misses function tone sequence on very fast key repetition
A minimum of 200ms pause is required between pressing buttons on the console. Some
consoles do not limit the maximum keying rate.
3.
PGM800Win: “Warning: the Firmware version is not compatible. Data read
maybe incorrect”
This warning occurs when reading the T803 with an old version of PGM800Win.
This can be ignored as the T803 unit is backwards compatible. However, it is recommended to use the latest PGM800Win with full T803 support.
4.
Loop-Line functionality (also known as Loopback)
Loopback can be enabled in PGM800Win. It is then activated by sending the T803 the
programmed function tones.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
5.
Installation and Configuration
D3.17
While in Line-In Level Configuration Mode, the LEDs flash green only briefly
when the dispatch console PTT is pressed
The Line-In level is too low. The T803 is only detecting the high-level guard tone
(HLGT).
While still in Line-In Level Configuration Mode, activate the console PTT and adjust the
Line-In level by pressing the Monitor button (increases the Line-In level) until the LEDs
remain constant green. The top alarm LED will toggle on and off, indicating a level
increase until the top of the range is reached (may be as many as 65 presses). If this still
fails, open up the unit and add JP200, and try again.
6.
When the PTT is pressed, a pulsing sound can be heard from the speaker
The Line-In level is too high. The function tones can not be decoded properly hence it
keys off.
While still in Line-In Level Configuration Mode, activate the console PTT and adjust the
Line-In level by pressing the Mode button. The bottom alarm LED will toggle on and
off, indicating a level decrease until the bottom of the range is reached. Using an oscilloscope measure the signal on TP204 – the function tone level should be about half the
level of the high level guard tone.
7.
The console keys the transmitter correctly except when speech is present
This is known as ‘Talkoff’ and occurs when the difference between the keytone level
and speech peak level exceeds specification (32dB in 2-wire mode and 35dB in 4-wire
mode), causing the keytone detection to fail.
For reliable operation, the keytone level should be no more than 35dB lower than peak
speech level.
If it is not possible to adjust the levels at the console, decrease the programmed Line-In
level of the T803 until talkoff is eliminated. This requires that the audio level from T803
to transmitter will also need to be re-adjusted (using the transmitter’s Line Sensitivity
control) to maintain 60% full system deviation for the test tone sent from the console.
Adjust the relative audio levels (keytone and speech) sent from the dispatch console.
8.
Keytone Falsing in 2-wire mode
When operating in 2-wire mode with lossy lines (i.e. significant separation required
between T803 Line-In and Line-Out levels) the keytone detector can become de-sensitised by noise.
•
Check to ensure that the input level from the receiver is correctly set up at
230mVrms (See Section 3.2.4.3).
•
Check the receiver mute open level (squelch). If necessary adjust the receiver Gating Sensitivity control on the front panel of the receiver, so that the receiver mute
opens at a higher SINAD level (12dB or preferably greater). This has the effect of
reducing the noise on the line input of the T803 in 2-wire mode.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
D3.18
•
Installation and Configuration
M8SL2-00-002-812
If there is still a problem after the squelch gating level has been adjusted as much
as practicable, it becomes necessary to reduce the separation between the T803
Line-In and Line-Out levels. This separation may need to be reduced to less than
8dB for 12dB receiver audio SINAD (or less then 12dB for 14dB receiver audio
SINAD). To achieve this, adjust the relative input and output levels of the dispatch
console. Again, this has the effect of reducing the noise on the line input of the
T803.
If the above solutions do not help resolve the problem, the 2-wire line loss may be too
severe and unacceptable for normal 2-wire T803 operation. In this case an external hardware solution involving a notch filter fitted to the receiver audio path (TA1086-01) and a
2-wire/4-wire hybrid fitted across the line may be required. This solution has been verified and documentation is available detailing how to install the TA1086-01. Contact
your your nearest Tait Dealer or Customer Service Organisation for more information.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T803 PCB Information
M8SL2-00-002-812
4
D4.1.1
T803 PCB Information
Caution:
This equipment contains CMOS devices which are susceptible to damage from
static charges. Refer to Section 3.1 for more information on anti-static procedures
when handling these devices.
This section provides the following information on the T803.
• parts list
• grid reference index
• PCB layouts
• circuit diagrams.
Section
Title
4.1
Introduction
4.2
T803 Main and Front Panel PCBs
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN
Page
4.1.3
220-01581-01
4.2.1
D4.1.2
T803 PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T803 PCB Information
M8SL2-00-002-812
4.1
D4.1.3
Introduction
PCB Identification
All PCBs are identified by a unique 10 digit “internal part number” (IPN), e.g. 220-12345-00, which
is screen printed onto the PCB (usually on the top side), as shown in the example below:
The last 2 digits of this number define the issue status, which starts at 00 and increments through 01,
02, 03, etc. as the PCB is updated. Some issue PCBs never reach full production status and are therefore not included in this manual. A letter following the 10 digit IPN has no relevance in identifying
the PCB for service purposes.
Note:
It is important that you identify which issue PCB you are working on so that you can
refer to the appropriate set of PCB information.
Parts Lists
The 10 digit numbers (000-00000-00) in this Parts List are “internal part numbers” (IPNs). We can
process your spare parts orders more efficiently and accurately if you quote the IPN and provide a
brief description of the part.
The components listed in this parts list are divided into two main types: those with a circuit reference (e.g. C2, D1, R121, etc.) and those without (miscellaneous and mechanical).
Those with a circuit reference are grouped in alphabetical order and then in numerical order within
each group. Each component entry comprises three or four columns, as shown below:
circuit reference lists components
in alphanumeric
order
variant column indicates that this is
a variant component
which is fitted only to
the product type listed
description gives a brief description
of the component
Internal Part Number order the component
by this number
The mechanical and miscellaneous section lists the variant and common parts in IPN order.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
D4.1.4
T803 PCB Information
M8SL2-00-002-812
Grid Reference Index
This section contains a component grid reference index to help you find components and labelled
pads on the PCB layouts and circuit diagrams. This index lists the components and pads in alphanumeric order, along with the appropriate alphanumeric grid references, as shown below:
PCB layout
reference
circuit diagram
reference
components listed
in alphanumeric order
component location
on the sheet
sheet number
component location
on the layer
layer number 1 = top side layer
2 = bottom side layer
Using CAD Circuit Diagrams
Reading a CAD circuit diagram is similar to reading a road map, in that both have an alphanumeric
border. The circuit diagrams in this manual use letters to represent the horizontal axis, and numbers
for the vertical axis. These circuit diagram “grid references” are useful in following a circuit that is
spread over two or more sheets.
When a line representing part of the circuitry is discontinued, a reference will be given at the end of
the line to indicate where the rest of the circuitry is located, as shown below. The first digit refers to
the sheet number and the last two characters refer to the location on that sheet of the continuation of
the circuit (e.g. 1R3).
DISCRIMINATOR
1R3
2R9
2R9
8A2
C371
%R338
100
10U
R339
100K
C369
100P
these grid references
show where the circuit
is continued
C301
4N7
R303
L310
33U
D
4R4
G S
IF-SIG
12
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T803 PCB Information
M8SL2-00-002-812
4.2
D4.2.1
T803 Main and Front Panel PCBs
This section contains the following information.
IPN
220-01581-04
Section
Page
Parts List
4.2.3
Mechanical and Miscellaneous Parts
4.2.6
Grid Reference Index
4.2.7
PCB Layout – Top Side
4.2.9
PCB Layout – Bottom Side
4.2.10
Overview and Front Panel Circuit Diagram
4.2.11
Interface Circuit Diagram
4.2.12
Control and Processing Circuit Diagram
4.2.13
P100 PI Filters Circuit Diagram
4.2.14
SK100 PI Filters Circuit Diagram
4.2.15
SK102 PI Filters Circuit Diagram
4.2.16
© Copyright Tait Electronics Limited August 2004. All rights reserved.
D4.2.2
T803 PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01581-04
T803 PCB Information
M8SL2-00-002-812
D4.2.3
T803 Parts List (IPN 220-01581-04)
How To Use This Parts List
The components listed in this parts list are grouped in alphabetical order and then in numerical order within each group. Each component entry comprises three or four columns: the circuit reference, variant (if applicable), IPN and description. A number in the variant
column indicates that this is a variant component which is fitted only to the product type listed.
This parts list is correct at the time of publishing, but is subject to change without notification. An up to date parts list can be obtained
from your local Customer Service Organisation
Ref
C1
C128
C145
C162
C163
C164
C165
C166
C167
C168
C170
C172
C173
C174
C2
C202
C203
C204
C205
C206
C207
C208
C210
C211
C212
C213
C214
C215
C216
C217
C218
C219
C220
C222
C224
C225
C226
C227
C232
C233
C235
C236
C238
C239
C240
C242
C3
C300
C301
C302
C303
C304
C305
C306
C307
C308
C310
C311
C312
C313
C314
C315
C316
C317
C318
C319
C320
C4
C400
C401
C402
C403
C404
C405
C406
C407
C408
C409
Var
IPN
Description
Ref
015-24100-08
015-24100-08
015-24100-08
016-08470-01
016-08100-01
015-24100-08
015-24100-08
015-24100-08
016-08470-01
016-08100-01
015-24100-08
015-25100-08
015-25100-08
015-25100-08
016-08100-01
015-25100-08
016-07470-06
016-07470-06
015-25220-08
015-25220-08
015-24470-08
015-24470-08
015-25100-08
015-23470-08
015-05330-08
015-05330-08
015-23470-08
015-23470-08
015-23470-08
015-25100-08
015-27100-10
015-25100-08
015-27100-10
015-24100-08
015-27100-10
015-26100-08
015-24470-08
015-26100-08
015-26100-08
015-24100-08
015-26100-08
015-26100-08
015-26100-08
015-25100-08
015-25100-08
015-26100-08
015-24100-08
015-25100-08
015-25100-08
015-25100-08
015-25100-08
015-25100-08
015-22270-01
015-22270-01
015-25100-08
015-25100-08
015-25100-08
015-25100-08
015-24100-08
015-25100-08
015-22270-01
015-25100-08
015-25100-08
015-25100-08
015-25100-08
015-25100-08
015-25100-08
015-26100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP ELEC SMD 47UF 6*4 16V
CAP ELEC SMD 10M 4*5.2 16V 20%
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP ELEC SMD 47UF 6*4 16V
CAP ELEC SMD 10M 4*5.2 16V 20%
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP ELEC SMD 10M 4*5.2 16V 20%
CAP CER 0805 10N 10% X7R 50V
CAP ELEC SMD BI-P 4U7 50V 20%
CAP ELEC SMD BI-P 4U7 50V 20%
CAP CER 0805 22N 10% X7R 50V
CAP CER 0805 22N 10% X7R 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 470P 10% X7R 50V
CAP CER 1206 33N 10% X7R 50V
CAP CER 1206 33N 10% X7R 50V
CAP CER 0805 470P 10% X7R 50V
CAP CER 0805 470P 10% X7R 50V
CAP CER 0805 470P 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 1M+80-20% Y5V 16V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 1M+80-20% Y5V 16V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1M+80-20% Y5V 16V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 4N7 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 27P 5% NPO 50V
CAP CER 0805 27P 5% NPO 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 27P 5% NPO 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 10N 10% X7R 50V
CAP CER 0805 100N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
C410
C411
C412
C413
C414
C415
C416
C417
C418
C419
C420
C421
C422
C423
C424
C425
C426
C427
C428
C429
C430
C431
C432
C433
C434
C435
C436
C437
C438
C439
C440
C441
C442
C443
C444
C445
C446
C447
C448
C449
C450
C451
C452
C453
C454
C455
C5
C500
C501
C502
C503
C504
C505
C506
C507
C508
C509
C510
C511
C512
C513
C514
C515
C516
C517
C518
C519
C520
C521
C522
C523
C524
C525
C526
C527
C6
C600
C601
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Var
IPN
Description
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
016-08470-01
015-22270-01
015-22270-01
015-22270-01
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-22270-01
015-22270-01
015-22270-01
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-22270-01
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-22270-01
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
015-24100-08
016-08470-01
015-24100-08
015-22270-01
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP ELEC SMD 47UF 6*4 16V
CAP CER 0805 27P 5% NPO 50V
CAP CER 0805 27P 5% NPO 50V
CAP CER 0805 27P 5% NPO 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 27P 5% NPO 50V
CAP CER 0805 27P 5% NPO 50V
CAP CER 0805 27P 5% NPO 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 27P 5% NPO 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 27P 5% NPO 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP ELEC SMD 47UF 6*4 16V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 27P 5% NPO 50V
IPN 220-01581-04
D4.2.4
Ref
Var
T803 PCB Information
M8SL2-00-002-812
IPN
Description
Ref
IPN
Description
C602
C603
C604
C605
C606
C607
C608
C609
C610
C611
C612
C613
C7
015-24100-08
015-24100-08
015-22270-01
015-24100-08
015-24100-08
015-22270-01
015-22270-01
015-24100-08
015-24100-08
015-22270-01
015-22270-01
015-24100-08
015-27100-10
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 27P 5% NPO 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 27P 5% NPO 50V
CAP CER 0805 27P 5% NPO 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 27P 5% NPO 50V
CAP CER 0805 27P 5% NPO 50V
CAP CER 0805 1N 10% X7R 50V
CAP CER 0805 1M+80-20% Y5V 16V
L512
L513
L600
L601
L602
L603
L604
L605
L606
Var
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
P1
P100
240-04020-72
240-00026-34
SKT HSNG 2W CORD MTG ULTREX
PLG 15W DRNG DUAL PORT
Q203
000-10008-47
XSTR SMD BC847B NPN SOT23
D1
D2
D207
D3
D4
D5
D6
008-00014-81
008-00014-81
001-18410-00
008-00014-81
008-00014-81
008-00014-81
001-10084-62
LED 5MM RED/GRN BICOLOR
LED 5MM RED/GRN BICOLOR
DIODE SMD BZX84C10V ZEN SOT23
LED 5MM RED/GRN BICOLOR
LED 5MM RED/GRN BICOLOR
LED 5MM RED/GRN BICOLOR
DIODE SMD BZX84C6V2 ZEN SOT23
IC1
IC100
IC101
IC2
IC200
IC201
IC202
IC203
IC204
IC205
%IC206
IC208
IC209
IC210
IC3
IC300
IC301
IC303
IC307
IC310
%IC311
IC312
IC313
002-10078-00
002-10078-00
002-10078-00
002-74905-95
002-74905-95
002-12003-00
002-10140-21
002-74905-95
002-74940-53
002-11454-80
002-11454-80
002-10832-00
002-74940-53
002-10126-71
002-10854-10
002-10203-00
002-74940-53
002-74900-00
002-00090-00
002-74905-73
240-04020-42
002-12416-00
002-10012-32
IC SMD MC78M05CDT5V REG0.5A
IC SMD MC78M05CDT5V REG0.5A
IC SMD MC78M05CDT5V REG0.5A
IC SMD 74HC595 SHIFT REG
IC SMD 74HC595 SHIFT REG
IC SMD ULN2003AD 7-DARL 16P S0
IC MC14021BDR2 8B SREG S016
IC SMD 74HC595 SHIFT REG
IC SMD 74HC4053 S016
IC SMD MC145480DW PCM
IC SMD MC145480DW PCM
IC TLC0832 8BIT A/D 8PIN S0
IC SMD 74HC4053 S016
IC SMD DS1868 DGTL POT TSOP20
IC TDA8541T 1W AUDIO AMP
IC TMS320C203 80MHZ PQFP100
IC SMD 74HC4053 S016
IC SMD 74HC00 4X 2 I/P NAND
IC SRAM 64KX16 15*5 44SOJ
IC SMD 74HC573D 8X 3STATE
SKT 44 PIN SMD PLCC
IC SMD AT24C16N-10SC EEPROM
IC DS1232LPS-2 LO-P RESET&WDOG
JP302
JP303
JP307
036-10000-00
036-10000-00
036-10000-00
RES M/F SMD 0805 0E 0.125W
RES M/F SMD 0805 0E 0.125W
RES M/F SMD 0805 0E 0.125W
L1
L114
L131
L132
L200
L201
L202
L203
L400
L401
L402
L403
L404
L405
L406
L407
L408
L409
L410
L411
L412
L413
L414
L415
L416
L417
L418
L419
L420
L421
L422
L423
L424
L425
L426
L427
L500
L501
L502
L503
L504
L505
L506
L507
L508
L509
L510
L511
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
057-10120-03
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
IND 0805 120E@100M .2 EMI SUPR
R1
R10
R100
R12
R13
R14
R15
R2
R201
R202
R203
R204
R205
R206
R207
R208
R209
R210
R211
R212
R213
R214
R215
R216
R217
R218
R219
R220
R221
R223
R224
R225
R226
R227
R228
R229
R230
R231
R232
R234
R235
R236
R237
R239
R240
R243
R244
R246
R247
R250
R251
R254
R257
R258
R259
R261
R262
R264
R266
R267
R268
R269
R271
R272
R273
R274
R275
R276
R277
R280
R3
R301
R302
R303
R310
R311
R312
R313
R314
R317
R318
R320
R321
036-12100-10
036-13220-10
036-10000-00
036-13330-00
036-13220-10
036-13330-00
036-13220-10
036-14470-10
036-14100-10
036-14100-10
036-14100-10
036-14100-10
036-14100-10
036-14100-10
036-14100-10
036-14100-10
036-14470-10
036-14100-10
036-14100-10
036-14100-10
036-14100-10
036-14100-10
036-14100-10
036-15100-10
036-14120-00
036-15100-10
036-14560-00
036-15100-10
036-15100-10
036-15100-10
036-15100-10
036-15100-10
036-15100-10
036-14220-00
036-12100-10
036-12390-00
036-13470-00
036-15470-10
036-13470-00
036-15100-10
036-13470-00
036-15100-10
036-15100-10
036-13220-10
036-14150-10
036-14100-10
036-14560-00
036-15100-10
036-15470-10
036-14560-00
036-14470-10
036-15100-10
036-14680-10
036-15100-10
036-16100-10
036-15470-10
036-15100-10
036-12220-00
036-15330-10
036-12100-10
036-12100-10
036-15100-10
036-15100-10
036-14220-00
036-14470-10
036-14470-10
036-14470-10
036-14470-10
036-14470-10
036-15100-10
036-13470-00
036-14220-00
036-14220-00
036-14470-10
036-15100-10
036-15100-10
036-15100-10
036-15100-10
036-15100-10
036-15100-10
036-15100-10
036-15100-10
036-14470-10
RES M/F SMD 0805 10E 1%
RES M/F SMD 0805 220E 1%
RES M/F SMD 0805 0E 0.125W
RES M/F SMD 0805 330E 5%
RES M/F SMD 0805 220E 1%
RES M/F SMD 0805 330E 5%
RES M/F SMD 0805 220E 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 1K2 5%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 5K6 5%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 10E 1%
RES M/F SMD 0805 39E 5%
RES M/F SMD 0805 470E 5%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 470E 5%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 470E 5%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 220E 1%
RES M/F SMD 0805 1K5 1%
RES M/F SMD 0805 1K 1%
RES M/F SMD 0805 5K6 5%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 5K6 5%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 6K8 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 100K 1%
RES M/F SMD 0805 47K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 22E 5%
RES M/F SMD 0805 33K 1%
RES M/F SMD 0805 10E 1%
RES M/F SMD 0805 10E 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 470E 5%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 2K2 5%
RES M/F SMD 0805 4K7 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 4K7 1%
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01581-04
T803 PCB Information
M8SL2-00-002-812
Ref
IPN
Description
R322
R323
R324
R325
R326
R327
R328
R330
R331
R332
R333
R334
R335
R336
R341
R342
R343
R344
R345
R346
R347
R348
R351
R352
R353
R4
R5
R7
R8
R9
RV1
Var
036-14180-00
036-14180-00
036-14180-00
036-14180-00
036-14180-00
036-14180-00
036-14180-00
036-14180-00
036-14180-00
036-14180-00
036-14180-00
036-14180-00
036-14180-00
036-15100-10
036-15100-10
036-15100-10
036-15100-10
036-15100-10
036-15100-10
036-15100-10
036-15100-10
036-15100-10
036-15100-10
036-14150-10
036-15100-10
036-13330-00
036-13220-10
036-13330-00
036-13220-10
036-13330-00
042-05100-10
RES M/F SMD 0805 1K8 5%
RES M/F SMD 0805 1K8 5%
RES M/F SMD 0805 1K8 5%
RES M/F SMD 0805 1K8 5%
RES M/F SMD 0805 1K8 5%
RES M/F SMD 0805 1K8 5%
RES M/F SMD 0805 1K8 5%
RES M/F SMD 0805 1K8 5%
RES M/F SMD 0805 1K8 5%
RES M/F SMD 0805 1K8 5%
RES M/F SMD 0805 1K8 5%
RES M/F SMD 0805 1K8 5%
RES M/F SMD 0805 1K8 5%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 1K5 1%
RES M/F SMD 0805 10K 1%
RES M/F SMD 0805 330E 5%
RES M/F SMD 0805 220E 1%
RES M/F SMD 0805 330E 5%
RES M/F SMD 0805 220E 1%
RES M/F SMD 0805 330E 5%
RES PRE 10K CER 9.5MM SQ FLAT
S1
S2
SK1
SK100
SK101
SK2
230-00010-38
230-00010-38
240-10000-07
240-04021-80
240-10000-07
240-04021-60
SW EXTENDER CAP 19MM
SW EXTENDER CAP 19MM
CONN SMD 16W 2R SKT M/MATCH
SKT 8W RJ45 HOR MTG
CONN SMD 16W 2R SKT M/MATCH
SKT 6W MODR PH VRT T-ENT
T200
T201
054-00010-16
054-00010-16
XFMR LINE 600 OHM 1:1 P1200
XFMR LINE 600 OHM 1:1 P1200
XL300
274-00010-59
XTAL 18.432MHZ HC49/U
Ref
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Var
IPN
Description
D4.2.5
IPN 220-01581-04
D4.2.6
T803 PCB Information
M8SL2-00-002-812
T803 Mechanical and Miscellaneous Parts (220-01581-04)
IPN
Legend Description
002-00021-03
IC W78LE54 PLCC44 MICRO 24MHZ
069-00010-31
CLAMP FER FOR 13MM CBL DIA
201-00030-08
WIRE T/C 7/0.2MM PVC GREY
201-00030-10
WIRE T/C 7/0.2MM PVC BLK
219-02685-00
T0NE RMT RBBN CBL LOOM
220-01581-04
PCB T803 T0NE RMT/T805-08 QS
230-00020-38
SW SPNO THRU HOLE PCB MTG
240-00020-72
HDR 2W PCB MTG ULTREX
240-04020-76
SKT HSNG 4W RECEP CRIMP ULTREX
252-00010-55
MIC SPKR 40MM 0.5W 16E FOSTER
303-23149-00
CVR SIDE T1511-20-0000
308-01007-02
HANDLE BS SII INT THREAD
316-06706-00
PNL FRT SUB CHASS 14MM
316-06707-01
PNL FRT T803-00-0000
316-21252-00
PNL REAR T803-00-0000 RJ45
318-01037-00
RAIL CHASS T1511-20 EXTRA AL
345-00040-08
SCRW M3*12MM P/P S/T BZ
345-00040-09
SCRW M3*6MM CSK POZI TRUNCATE
345-00050-04
SCRW M4*10MM CSK POZI S/T BZ
349-00020-09
SCRW 4-40*3/8" T/T P/P BLK
349-00020-08
SCRW 4-40*3/8" T/T CSK POZI BZ
349-00020-55
SCRW M3*8MM T/T P/P BZ
369-01039-00
ADH RING 40MM T/ORCA SPKR
IPN
Legend Description
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01581-04
T803 PCB Information
M8SL2-00-002-812
D4.2.7
T803 Grid Reference Index (IPN 220-01581-04)
How To Use This Grid Reference Index
The first digit in the PCB layout reference is a “1” or “2”, indicating the top or bottom side layout respectively, and the last two characters give the location of the component on that diagram.
The first digit in the circuit diagram reference is the sheet number, and the last two characters give the location of the component on
that sheet.
Device
PCB
Circuit
Device
PCB
Circuit
Device
PCB
Circuit
Device
PCB
Circuit
C1
C2
C3
C4
C5
C6
C7
C128
C145
C162
C163
C164
C165
C166
C167
C168
C170
C172
C173
C174
C202
C203
C204
C205
C206
C207
C208
C210
C211
C212
C213
C214
C215
C216
C217
C218
C219
C220
@C221
C222
C224
C225
C226
C227
@C228
#C230
@C231
C232
C233
#C234
C235
C236
#C237
C238
C239
C240
C242
C300
C301
1:Q10
1:Q11
1:Q11
1:S11
1:S11
1:S7
1:S7
1:H5
1:H5
1:H5
1:H8
1:H8
1:H3
1:H3
1:H4
1:H4
1:G4
1:G5
1:G5
1:G5
1:F5
1:C12
1:C9
1:C12
1:C9
1:C12
1:C9
1:F4
1:F10
1:F11
1:F9
1:F9
1:F10
1:F9
1:F7
1:C15
1:F10
1:D15
1:D15
1:F8
1:C14
1:D15
1:E15
1:D14
1:E13
1:D14
1:G13
1:E15
1:F7
1:G15
1:F13
1:E13
1:H13
1:F11
1:F8
1:E15
1:F13
1:L15
1:M15
1-N3
1-O3
1-O3
1-P3
1-Q3
1-Q4
1-R3
1-A0
1-B0
1-B0
1-C0
1-D0
1-E0
1-F0
1-F0
1-G0
1-G0
1-H0
1-H0
1-I0
2-E2
2-E9
2-E8
2-F9
2-F8
2-F9
2-F8
2-G4
2-G9
2-G9
2-G8
2-G7
2-H9
2-H7
2-H5
2-K5
2-J9
2-L5
2-L4
2-N2
2-M4
2-M4
2-M5
2-N4
2-N8
2-N5
2-N4
2-N7
2-O1
2-N2
2-P8
2-P5
2-O4
2-R9
2-O2
2-K5
2-M7
3-A9
3-B9
C302
C303
C304
C305
C306
C307
C308
C310
C311
C312
C313
C314
C315
C316
C317
C318
C319
C320
C400
C401
C402
C403
C404
C405
C406
C407
C408
C409
C410
C411
C412
C413
C414
C415
C416
C417
C418
C419
C420
C421
C422
C423
C424
C425
C426
C427
C428
C429
C430
C431
C432
C433
C434
C435
C436
C437
C438
C439
C440
1:K13
1:M14
1:K14
1:K14
1:K14
1:K11
1:L11
1:H9
1:K10
1:K15
1:L10
1:H9
1:L6
1:L8
1:K9
1:M8
1:H12
1:J5
1:D7
1:E8
1:D6
1:D6
1:D7
1:D4
1:D3
1:D5
1:D6
1:D5
1:D4
1:D4
1:D6
1:D8
1:E8
1:D6
1:D6
1:D7
1:D4
1:D3
1:D5
1:D5
1:D5
1:D4
1:D3
1:D6
1:D7
1:D8
1:D7
1:D7
1:D6
1:D7
1:D4
1:D3
1:C3
1:D6
1:D5
1:D4
1:D5
1:D4
1:D8
3-D9
3-D9
3-D9
3-G4
3-G4
3-I4
3-J4
3-L8
3-M6
3-H7
3-M6
3-P3
3-P6
3-P7
3-Q7
3-Q7
3-F3
3-Q2
4-H8
4-H8
4-H7
4-H6
4-H6
4-H5
4-H4
4-H3
4-H3
4-H2
4-H1
4-H1
4-H0
4-H8
4-H8
4-H7
4-H6
4-H6
4-H5
4-H4
4-H3
4-H3
4-H2
4-H1
4-H1
4-H0
4-J9
4-J8
4-J7
4-J7
4-J6
4-J5
4-J4
4-J4
4-J3
4-J2
4-J2
4-J1
4-J0
4-J0
4-J9
C441
C442
C443
C444
C445
C446
C447
C448
C449
C450
C451
C452
C453
C454
C455
C500
C501
C502
C503
C504
C505
C506
C507
C508
C509
C510
C511
C512
C513
C514
C515
C516
C517
C518
C519
C520
C521
C522
C523
C524
C525
C526
C527
C600
C601
C602
C603
C604
C605
C606
C607
C608
C609
C610
C611
C612
C613
1:D8
1:D7
1:D7
1:D6
1:D7
1:D3
1:D3
1:C3
1:D5
1:D5
1:D4
1:D5
1:D4
1:B3
1:B3
1:M6
1:M5
1:M5
1:M4
1:M4
1:M3
1:M3
1:M5
1:M5
1:M4
1:M4
1:M4
1:M3
1:M3
1:M6
1:M5
1:M5
1:M4
1:M4
1:M3
1:M3
1:M5
1:M5
1:M4
1:M4
1:M4
1:M3
1:M3
1:J4
1:K4
1:L4
1:J4
1:K4
1:L4
1:J4
1:J4
1:K4
1:L4
1:J4
1:K4
1:K4
1:L4
4-J8
4-J7
4-J7
4-J6
4-J5
4-J4
4-J4
4-J3
4-J2
4-J2
4-J1
4-J0
4-J0
4-J0
4-J0
5-E8
5-E7
5-E6
5-E5
5-E3
5-E2
5-E1
5-F8
5-F7
5-F6
5-F5
5-F3
5-F2
5-F1
5-G8
5-G7
5-G6
5-G5
5-G4
5-G3
5-G2
5-G8
5-G7
5-G6
5-G5
5-G4
5-G3
5-G2
6-E6
6-E5
6-E4
6-F6
6-F5
6-F4
6-F6
6-F5
6-F4
6-F3
6-G6
6-G5
6-G4
6-G3
D1
D2
D2
D3
D3
D4
D4
D5
D5
D6
@D200
@D201
@D202
@D203
@D204
@D205
D207
2:T9
2:T8
2:T8
2:T7
2:T7
2:T6
2:T6
2:S14
2:S14
1:Q3
1:B12
1:B9
1:F11
1:F11
1:F9
1:F9
1:E8
1-S2
1-T2
1-S2
1-S2
1-T2
1-S1
1-T1
1-S0
1-T0
1-O0
2-E9
2-E8
2-H9
2-H9
2-H8
2-H8
2-M2
FID1
FID2
1:T3
1:B15
1-I0
1-I0
IC1
IC2
IC3
IC100
IC101
IC200
IC201
IC202
IC203
IC204
IC205
%IC206
#IC207
IC208
IC209
IC210
IC210
IC210
IC300
IC300
IC301
IC303
IC303
IC303
IC303
IC303
IC307
IC310
%IC311
IC312
IC313
1:R12
1:S9
1:R7
1:H6
1:G3
1:F4
1:E3
1:F6
1:F3
1:F10
1:F14
1:D14
1:G14
1:F8
1:G11
1:F12
1:F12
1:F12
1:L14
1:L14
1:G12
1:H9
1:H9
1:H9
1:H9
1:H9
1:L11
1:L9
1:L7
1:K6
1:G9
1-O3
1-P1
1-R3
1-C0
1-F0
2-F1
2-F3
2-G4
2-H3
2-J8
2-O7
2-O4
2-O2
2-P1
2-S0
2-R8
2-K8
2-M8
3-B9
3-F5
3-F2
3-I8
3-K8
3-I9
3-I8
3-J8
3-J1
3-M5
3-P5
3-Q1
3-R3
D1
2:T9
1-T2
JP200
JP201
JP300
JP301
JP302
JP303
1:F15
1:E13
1:K15
1:J15
1:J15
1:J15
2-L8
2-M8
3-F7
3-E5
3-F5
3-E4
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01581-04
D4.2.8
T803 PCB Information
M8SL2-00-002-812
Device
PCB
Circuit
Device
PCB
Circuit
Device
PCB
Circuit
Device
PCB
Circuit
JP304
JP306
JP307
1:J15
1:H9
1:H9
3-F4
3-P3
3-P3
R276
R277
R280
R301
R302
R303
R310
R311
R312
R313
R314
R317
R318
R320
R321
R322
R323
R324
R325
R326
R327
R328
R330
R331
R332
R333
R334
R335
R336
R341
R342
R343
R344
R345
R346
R347
R348
R349
R351
R352
R353
1:H11
1:G11
1:E15
1:L15
1:J13
1:H12
1:K15
1:L15
1:M15
1:H9
1:J10
1:L13
1:K12
1:K13
1:K15
1:K9
1:L9
1:K9
1:L9
1:K9
1:L9
1:K9
1:L9
1:J7
1:J7
1:J6
1:J7
1:J7
1:K13
1:N10
1:N10
1:G10
1:N10
1:J8
1:J8
1:L6
1:L5
1:G7
1:G9
1:H9
1:M8
2-S1
2-T1
2-L5
3-E6
3-E5
3-E3
3-F7
3-G3
3-G4
3-H9
3-H8
3-I2
3-K4
3-K3
3-H7
3-M4
3-M4
3-M4
3-M4
3-M4
3-M4
3-M4
3-M4
3-M4
3-M4
3-M4
3-M4
3-M4
3-L3
3-P4
3-P4
3-P4
3-P4
3-P4
3-P4
3-O2
3-P2
3-P4
3-Q3
3-Q3
3-R6
3-G5
3-G4
3-E3
3-G3
1-O3
1-B0
1-E0
1-H0
2-E9
2-E8
2-E8
2-E8
4-H8
4-H8
4-H7
4-H6
4-H6
4-H5
4-H4
4-H4
4-H3
4-H2
4-H1
4-H1
4-H0
4-J9
4-J8
4-J7
4-J7
4-J6
4-J5
4-J5
4-J4
4-J3
4-J2
4-J2
4-J1
4-J0
4-J0
4-J0
5-F8
5-F7
5-F6
5-F5
5-F4
5-F3
5-F2
5-G8
5-G7
5-G6
5-G5
5-G4
5-G3
5-G2
6-E6
6-E5
6-E4
6-G6
6-G5
6-G4
6-G3
XL300
XXX1000
1:J14
nil
3-G4
1-E4
RV1
2:R6
1-S3
S1
S2
#S300
@SG200
@SG201
SK1
SK2
SK100
SK101
#SK102
2:T5
2:T4
1:G8
1:B12
1:B9
1:R8
2:S2
1:B11
1:P4
1:K3
1-T1
1-S1
3-R3
2-D9
2-D8
1-M2
1-T0
1-B9
1-K2
1-L3
T200
T201
1:D12
1:D10
2-G9
2-G8
P1
P100
P101
P101
#P300
#P301
2:Q5
1:B5
1:P9
1:P9
1:P14
1:K4
1-T3
1-B3
1-U8
1-U6
3-H3
3-R0
Q203
1:J5
2-G0
R1
R2
R3
R4
R5
1:Q3
1:S7
1:R7
1:S9
1:S9
1-O0
1-S3
1-T3
1-S2
1-T2
1-S2
1-T2
1-S2
1-T2
1-S1
1-T1
1-S0
1-T0
1-H0
2-E2
2-E2
2-E2
2-E1
2-E1
2-E1
2-E1
2-E1
2-E1
2-E5
2-E5
2-E5
2-E5
2-E5
2-E5
2-E5
2-M2
2-F5
2-N2
2-F5
2-F5
2-F5
2-F5
2-G5
2-G5
2-H5
2-L8
2-H8
2-I8
2-J8
2-L8
2-L5
2-L8
2-L5
2-L5
2-L5
2-K8
2-L8
2-L4
2-L8
2-M5
2-M4
2-M8
2-M5
2-M5
2-M3
2-M4
2-M3
2-N8
2-N5
2-N7
2-M3
2-N5
2-N1
2-M3
2-N4
2-N3
2-O1
2-O9
2-O6
2-R0
2-O4
2-G0
2-G0
2-S7
2-S5
2-S3
1:J13
1:J13
1:J12
1:H12
1:Q11
1:J5
1:H3
1:G5
1:C12
1:C12
1:C9
1:C9
1:E8
1:E8
1:D6
1:E6
1:D7
1:D4
1:D3
1:D5
1:D5
1:E5
1:E4
1:E3
1:D6
1:D8
1:E8
1:E7
1:E7
1:E6
1:D7
1:D3
1:E3
1:C3
1:E5
1:E5
1:E4
1:D5
1:D4
1:B3
1:M5
1:M5
1:M5
1:M4
1:M4
1:M3
1:M3
1:N5
1:N5
1:N5
1:N4
1:N4
1:N3
1:N3
1:J3
1:K3
1:L3
1:J3
1:K3
1:K3
1:L3
1:S8
1:S9
1:S8
1:S8
1:S7
1:S8
1:R13
1:R13
1:F5
1:F5
1:E5
1:E5
1:E5
1:E4
1:E4
1:E4
1:E4
1:H11
1:E6
1:E6
1:E6
1:E7
1:G6
1:G6
1:E6
1:F8
1:E6
1:F8
1:E6
1:E7
1:G6
1:G6
1:G7
1:E7
1:G6
1:F13
1:F9
1:F10
1:F12
1:F13
1:C15
1:F15
1:D15
1:D15
1:C15
1:F11
1:E15
1:D15
1:F13
1:D15
1:D15
1:F15
1:E15
1:D13
1:G15
1:C14
1:G13
1:E13
1:D13
1:F12
1:G15
1:E15
1:F7
1:G13
1:D14
1:G15
1:F8
1:G13
1:E13
1:H10
1:H13
1:J5
1:K5
1:G12
1:G12
1:G12
TP303
TP304
TP305
TP306
L1
L114
L131
L132
L200
L201
L202
L203
L400
L401
L402
L403
L404
L405
L406
L407
L408
L409
L410
L411
L412
L413
L414
L415
L416
L417
L418
L419
L420
L421
L422
L423
L424
L425
L426
L427
L500
L501
L502
L503
L504
L505
L506
L507
L508
L509
L510
L511
L512
L513
L600
L601
L602
L603
L604
L605
L606
R7
R8
R9
R10
R12
R13
R14
R15
R100
R201
R202
R203
R204
R205
R206
R207
R208
R209
R210
R211
R212
R213
R214
R215
R216
R217
R218
R219
R220
R221
R223
R224
R225
R226
R227
R228
R229
R230
R231
R232
R234
R235
R236
R237
@R238
R239
R240
@R242
R243
R244
R246
R247
R250
R251
#R253
R254
#R255
R257
R258
R259
#R260
R261
R262
#R263
R264
#R265
R266
R267
R268
R269
#R270
R271
R272
R273
R274
R275
TP200
TP201
TP203
TP204
TP205
TP206
TP207
TP208
TP209
TP211
TP212
TP213
TP214
TP215
TP216
TP300
TP301
TP302
1:F12
1:G12
1:C14
1:G12
1:E12
1:H12
1:F13
1:H12
1:J13
1:G12
1:G12
1:H12
1:F11
1:F11
1:E13
1:J12
1:J12
1:H13
2-L8
2-L3
2-M5
2-M8
2-Q4
2-Q2
2-T9
2-P3
2-L3
2-R8
2-R5
2-R3
2-K9
2-K9
2-N9
3-C5
3-C5
3-C4
© Copyright Tait Electronics Limited August 2004. All rights reserved.
12345
12345
12345
12345
12345
220-01581-04
TAIT ELECTRONICS
degrees
0
Rotation:
;
Scale:1.5:1
1 Mar 2002
A
1.TA
DATE:
ID:
ISS:
IPN:
T
S
R
Q
P
N
M
L
K
J
H
G
F
SK101
L509
L508
L507
L511
L512
L513
L510
L500
L501
L502
L503
L504
L505
L506
C166
L131
IC203
IC201
L411
C606
C610
C600
C603
C607
C611
C601
C604
C608
C612
C605
C602
C609
C613
R272
R271
L114
L132
IC200
C170
L424
L405
L410
L426
4
E
123
123
123
L420
L419
L423
L425
L409
L407
C320
L422
L408
P100
L406
IC202
L403
L417
L402
6
FID1
R1
C434
C448
C455
C454
L421
L412
L416
L404
R349
L415
L418
R353
C318
R346
L400
L413
R345
C164
L401
L414
C317
C208
R313
C213
C206 L203
L202
R344
R314
R230
C5
R341
R342
C219
R277
IC209
12345
12345
12345
12345
12345
© Copyright Tait Electronics Limited August 2004. All rights reserved.
C435
C449
C409
C422
C436
C450
C410
C423
C437
C451
C411
C424
C433
C447
7
D
#SK102
IC101
C408
C421
C407
C420
C438
C452
C439
C453
C405
C418
C432
C446
C406
C419
3
C
D6
C520
C527
C165
C506
C513
C519
C526
L603
L600
L604
L601
L605
L602
L606
C505
C512
C518
C525
C210
#P301
C167
C168
C504
C511
C517
C524
C503
C510
C516
C523
C502
C509
C515
C522
Q203
R347
R348
C162
C501
C508
R201 C202
C145
C128
C500
C507
C514
C521
R202
R203
R204
R205
R206
R207
R208
IC100
IC312
C6
R3
R225
R224
R215
R223
R214 R227
R211 R218
R210 R216
C174
C173
C172
R100
C7
C400
C442
C428
C443
C429
C416
C403
C444
C430
5
C316
R2
IC3
%IC311
C426
C445
C431
C417
C404
C425
C412
C415
C402
R213 R221
R212 R220
#S300
R332
R334
R335
R331
R333
C217
R226
C315
@D203
R239
C212
C308
C307
R275
IC301
C238
L200
R273
C205
C207
R259
R231
R274
L201
R232
#R270
#C237
@C231
R267
C235
R228
R243
@C228
R268
R258
R251
C236
#C230
JP303
JP301
C301
#P300
C305 C306
XL300
C302
R247
R235
R311
C300
R310
JP300
JP302
JP304
C240
C232 R280
R240
R312
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R262 C233
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R10
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R219 C239
R13
R12
C163
IC208
C222
R217
R266
C414
C401
8
R209
IC2
R352
@D204
C310
R351 C314
R324 R325
@D201
@SG201
R328 R330
JP306
C204
R269
C4
C2
TP215
R5
R4
R8
R7
P101
IC310
R326 R327
JP307
IC313
IC303
@D205
9
C214 R229 C216
C313
C311
R343
T201
R303
L1
R276
@D202
C319
C3
C1
C211
C215
SK100
TP300
TP301
TP305
TP306
TP208
TP213
TP206
TP201
TP204
TP211
TP212
C242
TP200
TP303
TP209
IC307
IC210
T200
C203
R336
R320
R318
TP205
#R255
C303
IC300
#IC207
R317
R302
TP304
R257
TP207
TP216
TP302
JP201
R15
R14
#R263
13
IC204
10
@R242 @C221
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TP203
#R260
R244 R250
C218 C225
IC205
14
#R265
R234 R246
%IC206
C224 C227
SIMPLY THE BEST
#R253
JP200
#C234
R236 R261
TP214
11
B
A
1
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FID2
C304
R254 R264
C312
R321 R301
C220 C226
R237
@R238
15
IC1
@D200
@SG200
12
TSLOT
THOLE
16
C441
C427
C413
L427
IPN 220-01581-04
17
T803 / T805 PCB LAYOUT - TOP SIDE
T803 PCB Layout – Top Side
220-01581-04
D4.2.9
T803 PCB Information
M8SL2-00-002-812
IPN 220-01581-04
12345
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15
1234
1234
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1
DATE:
ID:
ISS:
220-01581-04
degrees
0
Rotation:
;
Scale:1.5:1
1 Mar 2002
4.BA
A
IPN:
1
A
B
C
D
E
F
G
H
J
8
BHOLE
BSLOT
9
6
K
2
2
1
SK2
S2
S2
L
3
123
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SK2
24
RV1
TAIT ELECTRONICS
1
16
15
4
30
23
P11
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1
25BOT
1
M
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13
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D5
N
5
P1
RV1
S1
S1
P
6
1
D4
D4
Q
16
1
11
2
D3
D3
R
15
13 14
SIMPLY THE BEST
14
12
9
8
1
7
1 BOT
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123456
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123456
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123456
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12 12345
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12
123456
12
12
1
D2
D2
S
IPN 220-01581-04
10
1 GREEN
COMMON
RED
16
12345
12345
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1
D1
D1
T
D5
1
M8SL2-00-002-812
T803 PCB Information
D4.2.10
T803 / T805 PCB LAYOUT - BOTTOM SIDE
T803 PCB Layout – Bottom Side
220-01581-04
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01581-04
T803 PCB Information
M8SL2-00-002-812
A
B
C
D
E
F
G
V_ANA
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
+13V8
8
VCC
H
D4.2.11
VCC V_ANA +13V8
6
5
4
3
TP204
9
TP205
P101
2X25 WAY EDGE CONN
TP206
1
9
8WAY R-ANG RJ45
SK100
16
TA0_BP
17
CTCSS_BP
AL0_BP
AL1_BP
AL2_BP
AL3_BP
FP_BP
RP_BP
7
AX0_BP
AX1_BP
AX2_BP
AX3_BP
CD_OUT_BP
PTT_OUT_BP
CH0_BP
6
CH1_BP
CH2_BP
CH3_BP
CH4_BP
CH5_BP
CH6_BP
CH7_BP
RX_MUTE_IN_BP
5
SER_COMS_BP
GP_OUT
RA1
P100
P100
20
RX_SIG_BP
CODEC_SEL1
CODEC_SEL2
TA1
P100
18
RA1_BP
8
TA0
P100
19
TA1_BP
P100
29
P100
21
P100
22
P100
23
P100
27
24
2WIRE_4WIRE
RX_SIG
TX_PP
AL0
PP_ISOLATE
AL1
PP_IP
13
P100
PI
14
Filters
P100
15
8
AX1
LINE_CODEC
SHEET 4
10
SHEET 2
AX3
P100
28
1
2
P100
3
P100
4
CTCSS_CODEC
5
P100
6
P100
7
11
26
U_A8
U_A9
U_A10
U_A11
U_A12
2WIRE_4WIRE
SCK
SHIFT_SYNTH
PSEN
ALE
EA_VPP
U_D7
U_D6
U_D5
U_D4
U_D3
U_D2
U_D1
U_D0
SHEET 3
POT_DATA
CH1
RX_MUTE
CH2
SDA
RX_MUTE
SDA
/RESET
/RESET
CH4
SCK
CH5
PORT_EN
SCK
PORT_EN
SHIFT_SYNTH
SHIFT_SYNTH
26
12
VCC
DGND
RX_MUTE_IN
P100
6
POT_DATA
CH7
P100
5
SER_COMS
P100
7
25
P101
2X25 WAY EDGE CONN
SDI
SDI
CH6
P100
CONTROL
&
PROCESSING
/WE_UP
/WE_UP
POT_DATA
CH3
P100
LINE_CODEC
RADIO_CODEC
CH0
P100
PTT
CTCSS_CODEC
PTT_OUT
P100
CD
RADIO_CODEC
CD_OUT
P100
FROM_CODEC
8
RX_MUTE
/RESET
/WE_UP
SDI
TO_CODEC
CD
AX2
P100
CODEC_CLK
FROM_CODEC
PTT
CODEC_CLK
WATCHDOG
PP_ISOLATE
PORT_EN
TONE_DETECT
CD
PTT
SDA
RESET
PP_IP
TX_PP
CALL_UP
CODEC_SEL2
PP_IP
TO_CODEC
AX0
VCC2
PP_ISOLATE
AL3
INTERFACE
VCC
CODEC_SEL1
2WIRE_4WIRE
CODEC_CLK
RP
P100
VCC2
TX_PP
AL2
FP
P100
P100
CTCSS
Pins 1-25 need to be
on the Bottom side
going round the edge
clockwise
1
VCC
50
9
P100
+13V8
GND
DGND
SHIFT_MIX
AUX_CODEC
REPEATER
SHIFT_DATA
LINE_BASE
SPEAKER
+5V
34
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
P100
SK102
P100
15-15 WAY R-ANGLE DUAL DRANGE
PI
VCC
FRONT PANEL
#SK102
2X8 WAY TOP ENTRY SKT
+13V8
P100
Filters
SHEET 6
3
C6
47U
6
VCC
4
IN3
5
IN+
OUT2
SVR
IC3
TDA8541
1
+13V8_FP
C1
1N0
M21A
+5V
78M05CDT
IC1
L1
1
C3
1N0
C2
10U
VREG
VIN
VOUT
MODE OUT+
GND
7
3
C4
100N
GND
2
C5
47U
4
P1
2 WAY PLUG
1
DGND
P100
33
8
2
DGND
P100
32
R3
470
C7
R2
1U0
4K7
PI
Filters
SHEET 5
1
11
CK
12
LE
RST
10
GND
8
13
1
G
2
ALARM_2
LED D2
R12
1
2
G
1
LINE_FAIL
9
M21A
C128
1N0
0
1
1
C145
1N0
C162
47U
VREG
VIN
VOUT
GND
3
C163
10U
2
VCC
78M05CDT
IC101
L131
M21A
C165
1N0
C164
1N0
1
C167
47U
C166
1N0
VREG
VIN
VOUT
V_ANA
R14
L132
3
330
GND
C168
10U
2
S1
SPNO
M21A
C170
1N0
C172
10N
C173
10N
2
G
LED 1
D5
+13V8
R13
220E
ALARM_3
D5 3
R
LED 2
VCC2
78M05CDT
IC100
L114
2
R10
220E
LED D4
S2
SPNO
+13V8
R8
220E
LED D3
LOW_BAT
330
SQH
OE
ALARM_1
2
R9
330
FWD_PWR
G
IC2
SHIFT
REG
330
1
SK1
SKT 16-WAY MICROMATCH
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
DI
16
VCC
15
Q0
1
Q1
2
Q2
3
Q3
4
Q4
5
Q5
6
Q6
7
Q7
R5
220E
2
14
G
SK101
SK101
SKT 16-WAY MICROMATCH
1
-RESET_
2
3
SCK_
4
+13V8_
5
PORT_EN_
6
REPEATER_
7
SHIFT_DATA_
8
LINE_BASE_
9
SPEAKER_
10
11
MUTE_
12
SER_COMS_
13
PB1_
14
MIC_
15
PB2_
16
RX_MUTE_IN_
74HC595
Board
D1 3
R
LED 2
+13V8
Main
REV_PWR
D4 3
R
LED 2
2
From
D2 3
R
LED 2
R7
Panel
LED D1
ALARM_0
D3 3
R
LED 2
R4
330
+5V
Front
Speaker
3
SPEAKER_MUTE
To
To
RV1 3 CW
10K
2
1
4
P100
31
MUTE
DGND
30
PB1
DGND
P100
MIC
DGND
25
PB2
+13V8
REPEATER
C174
10N
R15
220E
LINE_BASE
0
R100
0
1
SK2
6 WAY VERT PHONE JACK
R1
FIT DUAL DIGIPOT DS1868
PCB UPDATE
MINOR UPDATES
UPDATED FOR T805
IC307 PACKAGE, ADDED GND TO F.P.
ORIGINAL
REV/ISS
TONY S
PAUL G
PAUL G
PAUL G
CRAIG M.
CRAIG M.
AMENDMENTS
A
B
DRAWN
C
FID1
FIDUCIAL
01/03/02
17/4/00
13/4/00
11/2/00
FID2
FIDUCIAL
THOLE
HOLE
BHOLE
HOLE
TSLOT
SLOT
10
BSLOT
SLOT
3
TAIT
ELECTRONICS
T803-00-0000/T805-08-0000
TONE REMOTE/QS
6
04A
03A
02B
02A
01A
00A
D6
6V2
2
IPN:
ISSUE:
220-01581-04
CHKD
D
D.O.
APVD
E
PROJECT:
DESIGNER:
T803
TONY S
DATE
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
A
FILE
NAME:
158104a
V
ID:
2.SC. 1
FILE
DATE:
1-Mar-02
NO.SHEETS:
6
W
Sheet 1 – T803 Overview and Front Panel
220-01581-04
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01581-04
D4.2.12
A
B
C
D
E
F
G
H
I
J
K
L
M
T803 PCB Information
N
O
C211
470P
1
6
C212
33N
2
2
@D203
5V1
3
M21A
To SK100
L202
6
@D201
62V
@SG201
230V
8
C204
M21A
4U7BP
C206
22N
C208
4N7
L203
3
1
6
3
4
C213
33N
T201
600/600
M21A
3
2
2
@D204
5V1
R230
@D205
5V1
470
3
R229
VAG
39E
C216
470P
C214
470P
7
16
VREF
+V
6
4
INH
Z
11
A
10
B
9
C IC204
4053
12
14
X0
X
13
X1
2
Y0
1
Y1
5
Z0
3
15
Z1
Y
GND
8
C219
10N
R267
10
TP216
TP215
14
4
MIN
C207
4N7
3
V_ANA
@D202
5V1
16
C205
22N
L201
4
T
U
V_ANA
V_ANA
MAX
4U7BP
3
T200
600/600
15
@SG200
230V
C203
M21A
S
3B0
3U3
DS1868E-010
IC210
@D200
62V
L200
R
C215
470P
TP214
5
Q
V
W
TP207
LINE SIDE ISOLATION AREA
9
P
M8SL2-00-002-812
R239
220
TX
TP200
Gain
R232
IC210
R243 DS1868E-010
MIN
MAX
R257
470
4
6K8
1K0
R228
VAG
5
3
5
PO+
4
PO3
PI
TP204
JP200 R235
10dBm
Line
R247
47K
470
Compensation
Loss
C242
VAG
R259
20
100K
100N
GND VB
10
1
CODEC_CLK
TO_CODEC
FROM_CODEC
SOUT
NC
8
3U1
CODEC_SEL2
9
13
@ = Not Fitted
# = T805-08
% = T803 VARIANT
17
NC
9
8
3B2
IC205
7
FSR
14
FST
10
PDI
C232
100N
POT_DATA
TP211
145480
VGA
COUT
IC210
DS1868E-010
MU/A 16
19
TI+
18
TI17
TG
1K5
R231
47K
9
BCLKR
12
BCLKT
11
MCLK
8
DR
13
DT
CODEC_SEL1
3B4
3U1
20
6
11
7
+V -RST DQ CLK
6
+V
1
RO+
2
RO-
10
R240
C238
100N
C235
100N
@C228
100N
Limit
JP201
2WIRE_4WIRE
3U1
LINE_CODEC
R273
4K7
GND
15
TP204
7
TA0
SPEAKER
TA1
6
4K9
MIC
RA1
4K8
CTCSS
4K8
V_ANA
R268
10
AUX_CODEC 6E3
4K7
VCC
AL0
AL1
AL2
AL3
FP
RP
PB1
PB2
4021
R210
R211
1K0
R212
1K0
R213
1K0
R214
1K0
R215
1K0
1K0
4K7
4K7
4K6
4K6
4K6
4K5
5E3
5E2
7
6
5
4
13
14
15
1
11
C220
R236
R280 1U0
10K
10K
VCC
R216 R218 R220 R221 R223 R224 R225 R226
10K 10K 10K 10K 10K 10K 10K 10K
5
CODEC_CLK
4K8
5E3
RX_SIG
3B3
3U7
CODEC_CLK
5E5
7
D0
D1
D2
D3
D4
D5
D6
D7
DS
CK
10
IC202
SHIFT
REG
C217
10N
16
VCC
Q6
Q7
Q8
C240
10N
12
C218
R234
R237
R244
1U0
10K
10K
5K6
10K
R250
5K6
5
PO+
4
PO3
PI
C226
4N7
R227
@R238
SDI
47K
0805
@R242
0805
GND
8
@C221
0805
PORT_EN
SCK
R246
10K
20
C225
100N
R254
C227
100N
TO_CODEC
3B7
FROM_CODEC
CD
3B0
3U7
PTT
3B0
3U7
CODEC_CLK
TO_CODEC
FROM_CODEC
%IC206
7
FSR
14
FST
10
PDI
VGA
6
CD
PTT
TP212
145480
5
3B2
MC14583
fitted
on T805-08
GND
15
R264
10K
C224
1U0
3B6
FROM_CODEC
MU/A 16
19
TI+
18
TI17
TG
R261
3
9
BCLKR
12
BCLKT
11
MCLK
8
DR
13
DT
1
RO+
2
RO-
4K7
2
C236
100N
6
+V
R258
R251
2K2
P/S C
9
#C230
100N
TP203
TO_CODEC
R274
4K7
TP205
3B0
3U6
6E5
SDA
22
RADIO_CODEC
SDA
TP205
V_ANA
SDI
4
C210
10N
AX0
AX1
AX2
AX3
SHIFT_MIX
CD_OUT
PTT_OUT
4K5
4K5
4K4
4K4
4K4
4K3
16
15
14
13
12
11
10
9
4G0
6E6
OUT1
IN1
OUT2
IN2
OUT3
IN3
IC201
OUT4
ULN2003AIN4
OUT5
IN5
OUT6
IN6
OUT7
IN7
COM
GND
3
1
2
3
4
5
6
7
8
MUTE
REPEATER
LINE_BASE
16
74HC595
VCC
Q0
Q1
Q2
IC203
Q3
SHIFT
Q4
REG
Q5
Q6
Q7
15
1
2
3
4
5
6
7
9
SQH
OE
GND
13
8
#R270
10
#
VCC
DI
14
11
CK
12
LE
/RESET
@C231
100N
SDA
TP201
#R255
10K
19
TI+
18
TI17
TG
#R260
10K
3K3
#R265
/RESET
5E4
5E6
5E5
20
10K
VGA
TP_CClk
TP208
9
BCLKR
12
BCLKT
11
MCLK
8
DR
13
DT
5
PO+
4
PO3
PI
TP209
#R253
RST
10
#C237
100N
6
+V
1
RO+
2
RO-
#R263
10K
SCK
PORT_EN
3B0
3U5
SCK
3B0
3U3
5E8
6E5
CODEC_CLK
PORT_EN
TO_CODEC
FROM_CODEC
MU/A 16
3B0
3U7
5E7
TP213
145480
#IC207
7
FSR
14
FST
10
PDI
3B2
C202
10N
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
SHIFT_DATA
4K3
4K2
4K2
4K2
4K1
4K1
4K1
4K0
15
1
2
3
4
5
6
7
9
5E6
1
3
16
74HC595
VCC
Q0
Q1
Q2
IC200
Q3
SHIFT
Q4
REG
Q5
Q6
Q7
SQH
OE
GND
13
8
SHIFT_SYNTH
C239
10N
D207
10V
14
R217
1K2
2
C222
1N0
R219
5K6
R262
10K
SCK
PORT_EN
11
CK
12
LE
3
C233
1N0
R266
33K
8
VCC
CH0
CS
3B0
3U3
6E4
1
7
CLK
IC208
6
TLC0832
DOUT
5
DIN
GND
4
CH1
3B4
3U5
SCK
SDA
16
+V
SHIFT_SYNTH
4K0
5E4
VCC
RX_MUTE_IN
0
3B3
3U6
VCC
R276
4K7
REV/ISS
AMENDMENTS
A
B
DRAWN
C
D
D.O.
APVD
E
3B0
3U6
DGND
1B4
1B4
1B4
1B4
1B4
3R0
4M0
5J1
6H1
DATE
F
1
Q203
BC848
01/03/02
17/4/00
11/2/00
CHKD
PP_ISOLATE
TX_PP
R277
4K7
2
TONY S
PAUL G
PAUL G
CRAIG M.
CRAIG M.
PP_IP
GND
8
R269
10K
GND
FIT DUAL DIGIPOT DS1868
PCB UPDATE
UPDATED FOR T805
IC307 PACKAGE, ADDED GND TO F.P.
ORIGINAL
2
/WE_UP
VCC
R272
2K2
04A
03A
02A
01A
00A
SHIFT_SYNTH
3
1
4K0
5E2
3B3
3U7
Z
VCC
R271
10K
7
VREF
6
INH
11
A
10
B
9
C
IC209
4053
12
14
X0
X
13
X1
2
Y0
1
Y1
5
Z0
3
15
Z1
Y
4
VCC
R209
4K7
SER_COMS
3B3
3U6
VCC
RST
10
VCC
3
CTCSS_CODEC
V_ANA
2
DI
PORT_EN
TP206
+13V8
VCC
R201
R202
1K0
R203
1K0
R204
1K0
R205
1K0
R206
1K0
R207
1K0
R208
1K0
1K0
SCK
TP206
CD
PTT
2
4
/RESET
R275
4K7
GND
15
#C234
100N
3B4
3U5
5E8
SDI
G
H
I
J
K
L
M
N
O
P
Q
Sheet 2 – T803 Interface
220-01581-04
R
VCC
3Q0
6E4
VCC
0
RX_MUTE
V_ANA +13V8
TAIT
1B4
5E7
ELECTRONICS
T803-00-0000/T805-08-0000
INTERFACE
6E6
V_ANA +13V8
IPN:
220-01581-04
S
T
PROJECT:
DESIGNER:
T803
TONY S
U
ISSUE:
FILE
A
NAME:
158104a
V
ID:
2.SC. 2
FILE
DATE:
1-Mar-02
NO.SHEETS:
6
W
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01581-04
T803 PCB Information
M8SL2-00-002-812
A
B
C
D
E
F
G
H
I
J
K
L
VCC
C300
10N
C301
10N
C302
10N
4 7 11 16 35 50 63 75 91
VDD
C303
10N
C304
10N
R313
10K
IC300
TMS320C203
12
13
VSS
14 21 30 37 48 54 59 70 83 88 94 42 65 25
N
O
P
Q
R
S
T
U
V
W
@ = Not Fitted
# = T805-08
% = T803 Variant
VCC
9
M
VCC
9
10
R314
10K
IC303
4
5
9
VCC
IC303
11
74HC00
8
74HC00
D4.2.13
14
IC303
1
2
3
V+
IC303
74HC00
C310
10N
74HC00
IC303
6
7
V-
/RD
R310
10K
JP300
R321
VCC
2U6
87 CLKX
89 FSX
90 DX
2K2
CALL_UP
98 XF
PP_ISOLATE
99 BIO
TP300
3 5 13
TONE_DETECT
12 15 92 82 77 76 78
/WE
DO 22
D1 23
D2 24
D3 26
D4 27
D5 28
D6 29
D7 31
D8 32
D9 33
D10 34
D11 36
D12 38
D13 39
D14 40
D15 41
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
55
56
57
58
60
61
62
64
66
67
68
69
71
72
73
74
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
TRST
TDI
TMS
IO3
IO2
IO1
IO0
CLKIN/X2
5
2K2
9
8
97
96
X1
R302
TONE_DETECT
POT_DATA
CODEC_SEL2
CODEC_SEL1
NMI
INT2
INT3
HOLD/INT1
DIV1
DIV2
/RESET
17
19
20
18
8
VCC
CODEC_CLK
C316
10N
C317
10N
C318
10N
2U6
44
VCC
CODEC_CLK
WATCHDOG
PP_ISOLATE
PORT_EN
TONE_DETECT
CD
PTT
SDA
VCC
C311
10N
A0
A1
A2
A3
A4
A5
A6
A7
19
18
17
16
15
14
13
12
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
2
3
4
5
6
7
8
9
PP_IP
TX_PP
CALL_UP
C313
10N
20
VCC
11
LE
D0
D1
D2
LATCH
D3
IC310
D4
74HC573 D5
D6
D7
GND
OE
10
1
11
13
14
15
16
17
18
19
23
RX_MUTE
ALE
/RESET
/WE_UP
SDI
U_D0
U_D1
RESET
U_D2
18.432MHZ
U_D3
U_D4
U_D5
U_D6
U_D7
2
3
4
5
6
7
8
9
P1-0
P1-1
P1-2
P1-3
P1-4
P1-5
P1-6
P1-7
P0-0/AD0
P0-1/AD1
P0-2/AD2
P0-3/AD3
P0-4/AD4
P0-5/AD5
P0-6/AD6
P0-7/AD7
%IC311
AT89C52
WATCHDOG
PORT_EN
U_D0
U_D1
TONE_DETECT
U_D2
U_D3
CD
U_D4
U_D5
PTT
U_D6
U_D7
SDA
U_A8
U_A9
RESET
U_A10
43
42
41
40
39
38
37
36
P2-0/A8 24
P2-1/A9 25
P2-2/A10 26
P2-3/A11 27
P2-4/A12 28
P2-5/A13 29
P2-6/A14 30
P2-7/A15 31
ALE/PROG 33
PSEN 32
NC 34
NC 12
NC 1
EA/VPP 35
P3-0/RXD
P3-1/TXD
P3-2/INTO
P3-3/INT1
P3-4/T0
P3-5/T1
P3-6/WR
P3-7/RD
NC
10 RST
C315
21 XTAL1
20 XTAL2
10N
AT89C55
fitted
2U1
PP_ISOLATE
2U3
5E7
PORT_EN
7
TONE_DETECT
2U5
CD
2U5
PTT
2U4
6E5
SDA
RESET
U_A11
PP_IP
U_A12
2WIRE_4WIRE
TX_PP
SCK
SHIFT_SYNTH
CALL_UP
ALE
PSEN
PP_IP
2U2
TX_PP
2U1
6
CALL_UP
VCC
R353
10K
EA_VPP
GND
22
/RESET
CODEC_CLK
WATCHDOG
PP_ISOLATE
IC300
TMS320C203
VCC
6
CODEC_CLK
PP_ISOLATE
TONE_DETECT
PP_IP
CALL_UP
/WE_UP
18.432MHZ
/RESET
TX_PP
43
95 RX
93 TX
R301
EMU1/OFF
EMU0
TCK
PP_IP
TX_PP
TDO
TO_CODEC
TOUT
FROM_CODEC
CLKOUT1
7
47 46 45 44100
READY
2U6
84 CLKR
85 FSR
86 DR
49
PS
IS
DS
BOOT
TEST
HOLDA
PLL5V
2 1 6 10 53 52 51
CODEC_CLK
CODEC_PULSE
C312
4K7
1N0
VCC
BR
Bootload
R/W
STRB
RD
WE
RS
VCC
MICRO_BUS(0:35)
CODEC_CLK
PP_ISOLATE
TONE_DETECT
PP_IP
CALL_UP
/WE_UP
18.432MHZ
/RESET
TX_PP
/RESET
DSP_BUS(0:46)
8
/RESET
/WE_UP
74HC00
on
RX_MUTE
2U0
/RESET
/WE_UP
2U4
5E8
2U2
SDI
2U4
RX_MUTE
/RESET
/WE_UP
SDI
T805-08
5
79 80 81
VCC
VCC
TP303
TP301
JP301
CALL_UP
open
JP302
TP_ClkOut
closed
TP304
JP303
CODEC_PULSE
POT_DATA
closed
JP304
18M432
open
C305
27P
POT_DATA
2U9
C306
27P
18.432MHZ
4
/RESET
2U4
5E8
/RESET
2U2
/WE_UP
VCC2
VCC
/WE_UP
#P300
2X7 WAY PLUG
10K
CODEC_CLK
CODEC_CLK
2U6
R311
13
11
9
7
5
3
1
14
12
10
8
6
4
2
10K
TX_PP
<-
C307
10N
11
33
VCC VCC
R303
3
PP_IP
2U2
PP_IP
PP_ISOLATE
2U1
PP_ISOLATE
4K7
C319
10N
TP305
7
VREF
TX_PP
CODEC_SEL1
CODEC_SEL2
LINE_CODEC
16
+V
6
INH
11
A
10
B
9
C IC301
4053
12
X0
13
X1
2
Y0
1
Y1
5
Z0
3
Z1
2U8
2U5
RADIO_CODEC
2U3
CTCSS_CODEC
Z
4
TP306
X
Y
14
15
IC307
61C3216
SRAM
GND
8
2
VCC
CODEC_PULSE
28 NC
23 NC
22 NC
R317
10K
PP_IP
/WE
/RD
17
41
6
39
40
WE
OE
CE
LB
UB
VSS VSS
34
12
1
C308
10N
Pin 1 Adjacent
to PCB edge
VCC
TX_PP
2U1
VCC2
VCC
R312
R318
10K
A13
A14
R323
1K8
R325
1K8
R327
1K8
R330
1K8
R332
1K8
R334
1K8
U_D0
U_D1
U_D2
U_D3
U_D4
U_D5
U_D6
U_D7
U_A8
U_A9
U_A10
U_A11
U_A12
1K8
R324
1K8
R326
1K8
R328
1K8
R331
1K8
R333
1K8
R335
1K8
VCC2
A15
10K
R320
R341
CODEC_CLK
10K
R342
WATCHDOG
PP_ISOLATE
PORT_EN
CD
PTT
SCK
10K
R343
U_A8
U_A8
10K
R344
U_A9
U_A9
10K
R345
U_A10
U_A10
10K
R346
U_A11
U_A11
10K
R349
U_A12
U_A12
10K
2WIRE_4WIRE
R336
#S300
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
A0 44
A1 43
A2 42
A3 27
A4 26
A5 25
A6 24
A7 21
A8 20
A9 19
A10 18
A11 5
A12 4
A13 3
A14 2
NC 1
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
VCC
R352
1K5
open
8
+V
7
1
ST
PBRST
IC313
6
2
RST
TD
5 LOW PWR MON 3
RST
TOL
GND
4
JP307
WATCHDOG
/RESET
SPNO
VCC
SHIFT_SYNTH
JP306
18.432MHZ
closed
R351
RESET
C314
27P
10K
2U9
2U3
5E8
6E5
2U2
6E4
SCK
10K
7
8
9
10
13
14
15
16
29
30
31
32
35
36
37
38
IO0
IO1
IO2
IO3
IO4
IO5
IO6
IO7
IO8
IO9
IO10
IO11
IO12
IO13
IO14
IO15
R322
D0
D1
D2
D3
D4
D5
D6
D7
A8
A9
A10
A11
A12
XL300
TP302
VCC
C320
10N
R347
10K
R348
10K
PSEN
ALE
EA_VPP
U_D7
U_D7
U_D6
U_D6
U_D5
U_D5
U_D4
U_D4
U_D3
U_D3
U_D2
U_D2
U_D1
U_D1
U_D0
U_D0
6
SDA
5
2U9
SDA
SDI
RX_MUTE
0
SCK
PORT_EN
2WIRE_4WIRE
SHIFT_SYNTH
04A
03A
02A
01A
00A
2U5
PTT
2U4
6E5
2U4
SDA
2U0
RX_MUTE
2U3
5E8
6E5
2U3
5E7
2U9
PORT_EN
B
1
POT_DATA
CODEC_SEL2
Connector
#P301
1X4 WAY
VCC
1
2
3
4
0
SCK
2WIRE_4WIRE
VCC
VCC2 DGND
SHIFT_SYNTH
2U2
6E4
2S0
6E4
TONY S
PAUL G
PAUL G
CRAIG M.
CRAIG M.
AMENDMENTS
A
IIC
SDA
SDI SCK
FIT DUAL DIGIPOT DS1868
PCB UPDATE
UPDATED FOR T805
IC307 PACKAGE, ADDED GND TO F.P.
ORIGINAL
REV/ISS
2
CODEC_SEL1
2U9
2U9
PTT
3
8
+V
1
A0
SCL
IC312
2
A1
SDA
3
7 24C16
A2
WP
GND
4
SCK
CODEC_SEL2
CD
SHIFT_SYNTH
EA_VPP
CODEC_SEL1
2U5
SCK
ALE
POT_DATA
CD
2WIRE_4WIRE
PSEN
VCC
4
DRAWN
C
01/03/02
17/4/00
11/2/00
CHKD
D.O.
APVD
D
© Copyright Tait Electronics Limited August 2004. All rights reserved.
E
VCC
DATE
F
G
H
I
J
K
L
M
N
O
P
Q
VCC2
1B4
1B4
1B4
1B4
1B4
2R0
4M0
5J1
6H1
TAIT
ELECTRONICS
T803-00-0000/T805-08-0000
CONTROL & PROCESSING
IPN:
ISSUE:
220-01581-04
R
S
T
PROJECT:
DESIGNER:
T803
TONY S
U
A
FILE
NAME:
158104a
V
ID:
2.SC. 3
FILE
DATE:
1-Mar-02
NO.SHEETS:
6
W
Sheet 3 – T803 Control and Processing
220-01581-04
IPN 220-01581-04
D4.2.14
A
B
C
D
E
F
G
H
J
T803 PCB Information
K
L
M
M8SL2-00-002-812
N
P
Q
R
9
9
L413
TA0_BP
C426
1N0
1B8
C400
1N0
M21A
2D6
L414
C427
1N0
1B8
C401
1N0
M21A
C414
1N0
2D6
C428
1N0
C402
1N0
M21A
L416
M21A
2D5
L417
C430
1N0
C404
1N0
M21A
2D5
L418
C431
1N0
M21A
L419
M21A
AX2
M21A
CD_OUT
L421
M21A
L422
M21A
2D2
C436
1N0
M21A
CH4
2D1
M21A
CH6
L425
M21A
2D1
RX_MUTE_IN
0
2D0
5E2
L426
C439
1N0
M21A
SER_COMS
C453
1N0
2D0
5E4
L427
SHIFT_MIX
DATE
CH7
C452
1N0
C425
1N0
SER_COMS_BP
APVD
M21A
L412
C412
1N0
1
2D1
2D1
C438
1N0
RX_MUTE_IN_BP
D.O.
CH5
C451
1N0
C424
1N0
1B5
CHKD
M21A
L411
CH7_BP
DRAWN
2D1
L424
C411
1N0
2
CH3
C450
1N0
C423
1N0
C437
1N0
CH6_BP
AMENDMENTS
M21A
L410
C410
1N0
1B5
REV/ISS
2D2
CH2
C422
1N0
CH5_BP
2D3
6E6
CH1
C449
1N0
L423
CH4_BP
01/03/02
17/4/00
11/2/00
M21A
L409
C409
1N0
3
CH0
1B6
TONY S
PAUL G
PAUL G
CRAIG M.
CRAIG M.
2D3
2D2
CH3_BP
FIT DUAL DIGIPOT DS1868
PCB UPDATE
UPDATED FOR T805
IC307 PACKAGE, ADDED GND TO F.P.
ORIGINAL
PTT_OUT
C448
1N0
C421
1N0
C435
1N0
CH2_BP
04A
03A
02A
01A
00A
M21A
L408
C408
1N0
1B6
1B5
2D3
2D3
CH1_BP
1B5
AX3
C447
1N0
C420
1N0
C434
1N0
CH0_BP
0
M21A
L407
C407
1N0
1B6
1B5
4
L420
PTT_OUT_BP
1
2D3
2D3
C433
1N0
CD_OUT_BP
1B5
AX1
C446
1N0
C419
1N0
1B6
1B6
M21A
L406
C406
1N0
5
AX0
AX3_BP
2
2D5
2D3
C432
1N0
AX2_BP
1B6
RP
C445
1N0
C418
1N0
1B7
3
M21A
L405
C405
1N0
AX1_BP
1B6
2D5
FP
1B7
AX0_BP
6
AL3
C444
1N0
C417
1N0
RP_BP
4
M21A
L404
FP_BP
1B6
2D5
AL2
1B7
1B7
AL1
C443
1N0
C416
1N0
AL3_BP
5
M21A
L403
C403
1N0
7
2D5
C429
1N0
AL2_BP
1B7
2D6
AL0
1B7
6
RX_SIG
C442
1N0
C415
1N0
AL1_BP
1B7
M21A
L402
AL0_BP
8
2D6
L415
1B8
1B8
RA1
C441
1N0
CTCSS
RX_SIG_BP
7
M21A
L401
CTCSS_BP
1B8
2D6
TA1
C413
1N0
RA1_BP
8
C440
1N0
L400
TA1_BP
1B8
M21A
TA0
C454
1N0
M21A
DGND
GP_OUT
C455
1N0
1B5
1B4
1B4
1B4
1B4
1B4
2R0
3R0
5J1
6H1
Sheet 4 – T803 P100 PI filters
220-01581-04
TAIT
ELECTRONICS
T803-00-0000/T805-08-0000
P100 PI FILTERS
IPN:
ISSUE:
220-01581-04
PROJECT:
DESIGNER:
T803
TONY S
A
FILE
NAME:
158104a
ID:.
2.SC. 4
FILE
DATE:
1-Mar-02
NO.SHEETS:
6
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01581-04
T803 PCB Information
M8SL2-00-002-812
A
B
C
D
E
F
G
H
J
K
L
M
9
9
L507
-RESET
C514
27P
2U4
3B4
3U5
8
C500
27P
2U3
3B0
3U3
+13V8
6E5
1B4
2S0
6E6
7
8
M21A
C507
27P
L508
C501
27P
M21A
L509
C516
1N0
C502
27P
2D1
M21A
REPEATER_
C523
1N0
SHIFT_DATA_
L510
C517
1N0
2D2
M21A
LINE_BASE_
C524
1N0
L503
SPEAKER
C503
1N0
2D6
M21A
SPEAKER_
L511
MUTE
C518
1N0
M21A
MUTE_
C525
1N0
L504
C504
1N0
2D0
4K0
M21A
SER_COMS_
L512
C519
1N0
2D5
M21A
PB1_
2D6
M21A
MIC_
C512
1N0
L513
PB2
C520
1N0
2D5
L506
RX_MUTE_IN
C506
1N0
2D0
4K0
1
M21A
3
C526
1N0
L505
C505
1N0
4
C511
1N0
PB1
MIC
5
C510
1N0
2D3
SER_COMS
6
C509
27P
LINE_BASE
2
M21A
L502
SHIFT_DATA
7
C508
27P
2D3
3
+13V8_
C522
1N0
PORT_EN_
REPEATER
4
M21A
L501
2U3
3B0
3U7
5
/RESET_
C521
27P
SCK_
C515
1N0
PORT_EN
6
M21A
L500
SCK
0
D4.2.15
M21A
PB2_
2
C527
1N0
RX_MUTE_IN_
C513
1N0
1
DGND
04A
03A
02A
01A
00A
REV/ISS
FIT DUAL DIGIPOT DS1868
PCB UPDATE
UPDATED FOR T805
IC307 PACKAGE, ADDED GND TO F.P.
ORIGINAL
AMENDMENTS
© Copyright Tait Electronics Limited August 2004. All rights reserved.
TONY S
PAUL G
PAUL G
CRAIG M.
CRAIG M.
DRAWN
01/03/02
17/4/00
11/2/00
CHKD
D.O.
APVD
DATE
1B4
1B4
1B4
1B4
1B4
2R0
3R0
4M0
6H1
TAIT
ELECTRONICS
T803-00-0000/T805-08-0000
SK101 PI FILTERS
IPN:
ISSUE:
220-01581-04
PROJECT:
DESIGNER:
T803
TONY S
A
FILE
NAME:
158104a
0
ID:.
2.SC. 5
FILE
DATE:
1-Mar-02
Sheet 5 – T803 SK101 PI Filters
220-01581-04
NO.SHEETS:
6
IPN 220-01581-04
D4.2.16
A
B
C
D
E
F
T803 PCB Information
G
H
M8SL2-00-002-812
J
K
L
M
9
9
8
8
7
7
L603
+13V8
C606
1N0
1B4
2S0
5E7
6
C600
1N0
2D3
4G0
M21A
L604
C607
27P
2U3
3B0
3U3
SDA
5E8
2U4
3B0
3U6
M21A
SCK_SM
C611
27P
L601
C601
27P
M21A
L605
C608
27P
M21A
SHIFT_SYNTH_SM
C612
27P
L602
VCC
C602
1N0
2S0
3Q0
M21A
4
VCC_SM
C605
1N0
L606
AUX_CODEC
C609
1N0
2D6
5
SDA_SM
C604
27P
SHIFT_SYNTH
2U2
3B0
3U3
6
SHIFT_MIX_SM
C603
1N0
SCK
4
+13V8_SM
C610
1N0
L600
SHIFT_MIX
5
M21A
M21A
AUX_CODEC_SM
C613
1N0
3
3
2
2
1
0
1
DGND
04A
03A
02A
01A
00A
REV/ISS
FIT DUAL DIGIPOT DS1868
PCB UPDATE
UPDATED FOR T805
IC307 PACKAGE, ADDED GND TO F.P.
ORIGINAL
AMENDMENTS
TONY S
PAUL G
PAUL G
CRAIG M.
CRAIG M.
DRAWN
01/03/02
17/4/00
11/2/00
CHKD
D.O.
APVD
1B4
1B4
1B4
1B4
1B4
2R0
3R0
4M0
5J1
DATE
Sheet 6 – T803 SK102 PI Filters
220-01581-04
TAIT
ELECTRONICS
T803-00-0000/T805-08-0000
SK102 PI FILTERS
IPN:
ISSUE:
220-01581-04
PROJECT:
DESIGNER:
T803
TONY S
A
FILE
NAME:
158104a
0
ID:.
2.SC. 6
FILE
DATE:
1-Mar-02
NO.SHEETS:
6
© Copyright Tait Electronics Limited August 2004. All rights reserved.
EI
M8SL2-00-002-812
Part E
T850 VCO PCB Information
This part of the manual provides the parts list, PCB layouts and circuit diagram for the T850 VCO
PCB. There is a detailed table of contents at the start of Section 2.
Section
Title
1
Introduction
2
T850 VCO PCB
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN
Page
1.1
220-01145-07
2.1
EII
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Introduction
M8SL2-00-002-812
1
E1.1
Introduction
PCB Identification
All PCBs are identified by a unique 10 digit “internal part number” (IPN), e.g. 220-12345-00, which
is screen printed onto the PCB (usually on the top side), as shown in the example below:
The last 2 digits of this number define the issue status, which starts at 00 and increments through 01,
02, 03, etc. as the PCB is updated. Some issue PCBs never reach full production status and are therefore not included in this manual. A letter following the 10 digit IPN has no relevance in identifying
the PCB for service purposes.
Note:
It is important that you identify which issue PCB you are working on so that you can
refer to the appropriate set of PCB information.
Parts Lists
The 10 digit numbers (000-00000-00) in this Parts List are “internal part numbers” (IPNs). We can
process your spare parts orders more efficiently and accurately if you quote the IPN and provide a
brief description of the part.
The components listed in this parts list are divided into two main types: those with a circuit reference (e.g. C2, D1, R121, etc.) and those without (miscellaneous and mechanical).
Those with a circuit reference are grouped in alphabetical order and then in numerical order within
each group. Each component entry comprises three or four columns, as shown below:
circuit reference lists components
in alphanumeric
order
variant column indicates that this is
a variant component
which is fitted only to
the product type listed
description gives a brief description
of the component
Internal Part Number order the component
by this number
The mechanical and miscellaneous section lists the variant and common parts in IPN order.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
E1.2
Introduction
M8SL2-00-002-812
Variant Components
A variant component is one that has the same circuit reference but different value or specification in
different product types. Variant components have a character prefix, such as “&”, “=” or “#”, before
the circuit reference (e.g. &R100).
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T850 VCO PCB Information
M8SL2-00-002-812
2
E2.1
T850 VCO PCB
This section contains the following information.
IPN
220-01145-07
Section
Page
Parts List
2.3
PCB Layout – Bottom Side
2.5
PCB Layout – Top Side
2.6
Circuit Diagram
2.7
© Copyright Tait Electronics Limited August 2004. All rights reserved.
E2.2
T850 VCO PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01145-07
T850 VCO PCB Information
M8SL2-00-002-812
E2.3
T850 VCO Parts List (IPN 220-01145-07)
How To Use This Parts List
The components listed in this parts list are grouped in alphabetical order and then in numerical order within each group. Each component entry comprises three or four columns: the circuit reference, variant (if applicable), IPN and description. A number in the variant
column indicates that this is a variant component which is fitted only to the product type listed.
This parts list is correct at the time of publishing, but is subject to change without notification. An up to date parts list can be obtained
from your local Customer Service Organisation
Ref
#C1
#C1
#C1
#C1
C2
C3
#C4
#C4
#C4
#C4
C5
#C6
#C6
#C6
#C6
#C7
#C7
#C7
#C7
#C8
#C8
#C8
#C8
C9
#C10
#C10
#C10
#C10
C11
C12
C13
C14
C16
C17
C18
C19
C21
C22
C22
C22
C22
C23
C24
D1
D1
D1
D1
D2
D2
D2
D2
L1
L2
L3
L4
L5
#L6
#L6
#L6
#L6
Var
IPN
Description
Ref
Variant
Code
Description
T855
(MHz)
T854
(MHz)
A
Tx High
—
480 to 500
B
Tx Mid/Rx High
480 to 520
440 to 480
C
Tx Low/Rx Mid
440 to 480
400 to 440
D
Rx Low
400 to 440
—
A
B
C
D
015-21120-02
015-21120-02
015-21150-01
015-21150-05
014-08100-00
015-24100-08
015-21100-02
015-21100-02
015-21100-02
015-21100-02
015-06100-08
028-02111-00
028-02111-00
028-02111-00
028-02111-00
015-21330-02
015-21470-02
015-21680-02
015-21820-02
015-22220-01
015-22220-01
015-22270-01
015-22330-01
015-23120-01
015-21180-02
015-21180-02
015-21180-02
015-21180-02
015-21330-02
015-24100-08
015-24100-08
015-23120-01
015-23120-01
015-23120-01
015-22270-01
015-05470-08
015-23120-01
015-22100-02
015-22150-01
015-22150-01
015-23120-01
015-21820-02
015-05470-08
Cap Cer 0805 1p2 1% NPO 50v
Cap Cer 0805 1p2 1% NPO 50v
Cap Cer 0805 1p5+-0.25 NPO 50v
Cap Cer 0805 1p5 +0.1pf 200v
Cap Tant SMD 10u 16v 20% 267c
Cap Cer 0805 1n 10% X7r 50v
Cap Cer 0805 1po 1% NPO 50v
Cap Cer 0805 1po 1% NPO 50v
Cap Cer 0805 1po 1% NPO 50v
Cap Cer 0805 1po 1% NPO 50v
Cap Cer 1206 100n 10% X7r 50v
Cap Trim 16pf Piston Prec
Cap Trim 16pf Piston Prec
Cap Trim 16pf Piston Prec
Cap Trim 16pf Piston Prec
Cap 0805 3p3 +/-0.1p NPO 50v
Cap 0805 4p7 1% NPO 50v
Cap 0805 6p8 +/-0.1p NPO 50v
Cap 0805 8p2 0.1 NPO 50v
Cap Cer 0805 22p 5% NPO 50v
Cap Cer 0805 22p 5% NPO 50v
Cap Cer 0805 27p 5% NPO 50v
Cap Cer 0805 33p 5% NPO 50v
Cap Cer 0805 120p 5% NPO 50v
Cap 0805 1p8 1% NPO 50v
Cap 0805 1p8 1% NPO 50v
Cap 0805 1p8 1% NPO 50v
Cap 0805 1p8 1% NPO 50v
Cap 0805 3p3 +/-0.1p NPO 50v
Cap Cer 0805 1n 10% X7r 50v
Cap Cer 0805 1n 10% X7r 50v
Cap Cer 0805 120p 5% NPO 50v
Cap Cer 0805 120p 5% NPO 50v
Cap Cer 0805 120p 5% NPO 50v
Cap Cer 0805 27p 5% NPO 50v
Cap Cer 1206 47n 10% X7r 50v
Cap Cer 0805 120p 5% NPO 50v
Cap 0805 10p +/-0.1p NPO 50v
Cap Cer 0805 15p 5% NPO 50v
Cap Cer 0805 15p 5% NPO 50v
Cap Cer 0805 120p 5% NPO 50v
Cap 0805 8p2 0.1 NPO 50v
Cap Cer 1206 47n 10% X7r 50v
A
B
C
D
A
B
C
D
001-10015-30
001-10043-90
001-10043-90
001-10043-90
001-10015-30
001-10043-90
001-10043-90
001-10043-90
Diode SMD Vcap BB153 SOD323
Diode SMD BB439 Vcap SOD323
Diode SMD BB439 Vcap SOD323
Diode SMD BB439 Vcap SOD323
Diode SMD Vcap BB153 SOD323
Diode SMD BB439 Vcap SOD323
Diode SMD BB439 Vcap SOD323
Diode SMD BB439 Vcap SOD323
A
B
C
D
056-10330-02
056-10330-02
056-10330-02
056-10330-02
057-00047-10
056-10015-03
056-10015-03
056-10015-03
056-10015-03
Ind SMD 1210 330nh 10% Simid02
Ind SMD 1210 330nh 10% Simid02
Ind SMD 1210 330nh 10% Simid02
Ind SMD 1210 330nh 10% Simid02
Ind Fxd 47nh +-5% 1206
Ind SMD 0805cs 15nh 20%
Ind SMD 0805cs 15nh 20%
Ind SMD 0805cs 15nh 20%
Ind SMD 0805cs 15nh 20%
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
IPN
Description
Q1
Q2
Q3
Q4
Q5
000-10009-30
000-10009-30
000-10009-30
000-10008-57
000-10050-00
Xstr SMD BFR93A NPN SOT23
Xstr SMD BFR93A NPN SOT23
Xstr SMD BFR93A NPN SOT23
Xstr SMD BC857 PNP SOT23 SS
Xstr SMD BLT50 UHF SOT22
R1
R2
R3
R4
R5
#R6
#R6
#R6
#R6
R7
R8
R9
R10
R11
R12
R13
R13
R13
R13
R14
R15
R17
R17
R17
R17
R18
R19
R20
R21
R22
036-14390-10
036-14100-10
036-13100-10
036-12220-00
036-12270-00
036-13100-10
036-13100-10
036-13100-10
036-13100-10
036-14100-10
036-12220-00
036-14270-10
036-14120-00
036-13150-10
036-12100-10
036-12270-00
036-12390-00
036-12390-00
036-12560-00
036-13330-00
036-12100-10
036-14680-10
036-14680-10
036-14680-10
036-14820-10
036-14180-00
036-14100-10
036-12180-00
036-13330-00
036-12100-10
Res M/F SMD 0805 3k9 1%
Res M/F SMD 0805 1k 1%
Res M/F SMD 0805 100e 1%
Res M/F SMD 0805 22e 5%
Res M/F SMD 0805 27e 5%
Res M/F SMD 0805 100e 1%
Res M/F SMD 0805 100e 1%
Res M/F SMD 0805 100e 1%
Res M/F SMD 0805 100e 1%
Res M/F SMD 0805 1k 1%
Res M/F SMD 0805 22e 5%
Res M/F SMD 0805 2k7 1%
Res M/F SMD 0805 1k2 5%
Res M/F SMD 0805 150e 1%
Res M/F SMD 0805 10e 1%
Res M/F SMD 0805 27e 5%
Res M/F SMD 0805 39e 5%
Res M/F SMD 0805 39e 5%
Res M/F SMD 0805 56e 5%
Res M/F SMD 0805 330e 5%
Res M/F SMD 0805 10e 1%
Res M/F SMD 0805 6k8 1%
Res M/F SMD 0805 6k8 1%
Res M/F SMD 0805 6k8 1%
Res M/F SMD 0805 8k2 1%
Res M/F SMD 0805 1k8 5%
Res M/F SMD 0805 1k 1%
Res M/F SMD 0805 18e 5%
Res M/F SMD 0805 330e 5%
Res M/F SMD 0805 10e 1%
051-00005-43
051-00005-42
051-00005-41
051-00005-40
Reso Tait #543 480-520
Reso Tait #542 435-480
Reso Tait #541 395-440
Reso Tait #540 355-395
240-00026-32
220-01145-07
345-00040-10
350-00016-42
353-00010-13
Plg 32w 1row Pcb Mtg
PCB T855/856/857/870 VCO
Scrw M3*6mm P/P S/T Bz
Spcr 5mm Hi 8*M3 Stud 2.5*M3ho
Wshr M3 S/Proof Int Bz
#TL1
#TL1
#TL1
#TL1
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Var
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
1
2
3
4
5
A
C22
#L6
C21
L5
Q5
#C15
TBADMARK
B
R20
Q4
R17
R18
C19
R22
R21 C18 R19
C24
C
#TL1
R14
D
R15 C16
R12
R11 Q2 R10
Q3
R8 R9
C11
C13 C12 R7
R13 C14
C17
C23
R4
L4
#C7
E
R3
R5
F
R2
C5
R1
C2
L1
D2
D1
L3
Q1
#C4
#C6
#C8
C9
#R6
#C10
C3
#C1
L2
E2.4
6
IPN 220-01145-07
T850 VCO PCB Information
M8SL2-00-002-812
T850 VCO PCB (IPN 220-01145-07) – Top Side
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01145-07
A
1
3
4
5
6
2
T850 VCO PCB Information
M8SL2-00-002-812
PL4
T850 VCO PCB (IPN 220-01145-07) – Bottom Side
© Copyright Tait Electronics Limited August 2004. All rights reserved.
F
E
D
C
PL2
PL3
B
PL5
E2.5
E2.6
T850 VCO PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01145-07
T850 VCO PCB Information
M8SL2-00-002-812
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
E2.7
R
9
9
8
8
9.0
1
PL3
BUFFER+9V
7
R18
1K8
VCO-SUPPLY
7
R20
18
5
PL4
2
PL4
7.8
4
PL4
6
7.9
8.3
C2
10U
TANT
C3
1N0
R8
27
22
C5
100N
#C7
C16
10
120P
PRTD
#L6
C22
15NH
120P
Q5
BLT50
C23
8P2
C18
27P
R21
330
#C15
10P
0.6
R14
330
5
PL5
1
PL5
2
PL5
3
PL5
4
PL5
5
1
PL2
DIVIDER-BUFFER
3
4
R12
10
2.6
Q3
941
2
VCO-CONTROL
3P3
L1
R4
22
#C6
1P0/16P
0.8
R7
1K0
#C8
33P
D2
BB439
1
C17
120P
1.5
C11
2
R15
Q2
941
R10
1K2
1.2
L2
330NH
VCO-O/P
+20DBM
PRTD
2.8
Q1
BFR93A
10P
1 D1
BB439
330NH
L5
47N
C19
47N
C13
1N0
L3
330NH
#C10
1P8
#TL1
#540
R11
150E
5.8
R2
1K0
C12
1N0
2P2
1
PL4
6
C24
47N
L4
330NH
1P0
#C1
R17
6K8
R9
2K7
1.5
#C4
4
10
C21
120P
8.0
100E
5
R5
R22
3.1
R19
1K0
R1
3K9
R3
3
Q4
BC857
7.2
C9
120P
#R6
100E
R13
56E
C14
120P
2
2
#-VALUE CHANGES FOR DIFFERENT OPTIONS
1
1
=
0
07B
07A
06A
05A
04A
03A
REV/ISS
D.C. CONDITIONS (VOLTS)
(USE HIGH IMPEDENCE PROBE)
TBADMARK
BADMARK
PL5
PL4
PL2
PL3
5 PLUG PINS
5 PLUG PINS
1 PIN PLUG
1 PIN PLUG
REGENERATED NEW PASTE
MINOR UPDATE TO THE LAYOUT
MINOR UPDATE
UPDATE
SMD PARTS ADDED
CYCLIC KEYING MODIFICATION
AMENDMENTS
BRD
SSAHI
SSAHI
SSAHI
BENC
BENC
DRAWN
0
TAIT
10-06-03
06-09-00
06-07-00
05-05-00
07-10-99
CHKD
D.O.
APVD
IPN:
DATE
VCO
ISSUE:
220-01145-07
T850 VCO
220-01145-07
© Copyright Tait Electronics Limited August 2004. All rights reserved.
ELECTRONICS
T850/T870
PROJECT:
DESIGNER:
T850
SSAHI
B
FILE
NAME:
1145_07b
ID:.
2.SC. 1
FILE
DATE:
10-Jun-03
NO.SHEETS:
1
IPN 220-01145-07
E2.8
T850 VCO PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
FI
M8SL2-00-002-812
Part F
T800-23-0011 Power Supply
This part of the manual provides information on the power supply, and is divided into
six sections as listed below..
Section
Title
1
General Information
2
Power Supply Description
3
Installation Guidelines
4
Functional Testing
5
Troubleshooting
6
Service Information
© Copyright Tait Electronics Limited August 2004. All rights reserved.
FII
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
1
General Information
F1.1
General Information
This section provides a brief description of the T800-23-0011 Switch Mode Power Supply, as well as detailed specifications.
1.1
Introduction
The T800-23-0011 is a switching power supply designed to meet the requirements of the
T800 SL2 25W Continuous Basestation. It is capable of suppling 13.8VDC at up to 14.5A
(see derating information in Section 1.2.4). The unit provides power to the T800 SL2 Basestation modules via a cable assembly (with a 12A fuse) which connects between the DC
output connector on the back of the unit, and the backplane PCB (X800-56-PCB3).
The T800-23-0011 is protected against damage caused by faults in the line or load, or by
temperature variations. (refer to Section 1.2 for specifications). The protection features
include:
• Short circuit protection.
• Overload protection
• Over voltage protection
• Over Temperature protection
Electromagnetic compatibility (EMC) and operator safety are important and critical
requirements for a switching power supply. Refer to Section 1.3.1 and Section 1.3.2 for
specifications.
Caution:
To prevent the T800-23-0011 equipment from overheating, do not exceed the
rated current.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
F1.2
General Information
1.2
Specifications
1.2.1
Introduction
M8SL2-00-002-812
The performance figures given are minimum figures, unless otherwise indicated, for
equipment operating at standard room temperature (+22°C to +28°C).
Details of test methods and the conditions which apply for Type Approval testing in all
countries can be obtained from Tait Electronics Ltd.
1.2.2
General
Basic Power Supply Concept
… switched mode technology pulse
width modulation
Overtemperature Protection
… shuts down when PC Board temperature rises above 95°C ±5°C
Reset: auto recovery
Cooling
… convection and forced air (fan)
Efficiency
… 80%, full load
Temperature Range:
230VAC supply
115VAC supply
… –10 to +60°C
… –10 to +50°C
Input to Output
Input to Ground/Chassis
Output to Ground/Chassis
… 3000VAC, 1 minute
… 1500VAC, 1 minute
… 500VAC, 1 minute
Isolation:
1.2.3
AC Mains Input
Voltage:
… 100 to 130VAC 47–63Hz
200 to 240VAC 47–63Hz
AC Input Current
… 2.8A maximum
(115VAC at full load)
Maximum Inrush Current
… 40A maximum
(230VAC at full load)
Connection to mains supply
… IEC plug on rear panel
© Copyright Tait Electronics Limited August 2004. All rights reserved.
General Information
M8SL2-00-002-812
F1.3
Power Factor at full load:
230VAC supply
115VAC supply
Note:
Exact power factor depends on impedance of mains supply.
Input Fuse (Internal)
1.2.4
… 5A 250V fast acting
(Littlefuse 217 series)
Output
Output Voltage
Note:
… >0.96
… >0.98
… 13.8VDC
A drop of up to 0.5V may be expected across the wiring from the power supply to the load.
Voltage Regulation
… ±0.5%
Current
Operation from 200–240VAC supply:
Continuous, –10°C to +50°C
Continuous, up to +60°C
… 0 to 14.5ADC
… 0 to 8.5ADC
Operation from 100–130VAC supply:
Continuous, –10°C to +20°C
Continuous, +20°C to +50°C
Note:
… 0 to 14.5ADC
… 0 to 8.5ADC
Continuous operation from 115VAC supplies in ambient temperatures
exceeding +50°C is not recommended, as this will cause the equipment to
overheat.
Output Overvoltage Protection
… 14.8 to 19.1VDC
Type: Shutdown
Reset: Power off and on
Output Hum and Noise
… <100mVpp
(At full load, with mains supply voltage = 230V)
Current Overload Limit
… 15.2 to 21.8A
Type: Constant current limiting
Reset: Auto recovery
Output Connector
… Molex 6-way receptacle
Note:
Refer to Figure 3.1 in Section 3.2 for the output connector pinouts.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
F1.4
General Information
1.3
Regulatory Information
1.3.1
EMC Conformity
M8SL2-00-002-812
This equipment complies with:
ETSI EN301 349-1 V1.3.1 (2001-09) “Electromagnetic Compatibility and Radio Spectrum Matters (ERM); Electromagnetic Compatibility (EMC) standard for radio equipment and services; Part1: Common technical requirements”.
Tested in accordance to:
• BS EN55022: 1998
• BS EN61000-3-2: 2001
• BS EN61000-3-3: 1995
• IEC 61000-4-2: 1995
• IEC 61000-4-3: 2002
• IEC 61000-4-4: 1995
• IEC 61000-4-5: 1995
• IEC 61000-4-6: 1996
• IEC 61000-4-11: 1994
BS EN55022: 1998 for class B Radiated and conducted emissions, and electromagnetic
susceptibility specifications.
AS/NZS CISPR22: 2002 for class B Radiated and conducted emissions, and electromagnetic susceptibility specifications.
FCC 47 Part 15: 2001 for class B (Radiated and conducted emissions, and electromagnetic susceptibility specifications) of the FCC rules for the United States. Operation is
subject to the following two conditions:
1.
This device may not cause harmful interference, and
2.
This device must not accept any interference received, including interference that
may cause undesired operation.
Warning: This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
General Information
F1.5
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Modifications not expressly approved by the manufacturer could void the
user's authority to operate the equipment under FCC rules.
1.3.2
Safety Approvals
This equipment complies with:
IEC 60950 : 1999 “Safety of information technology equipment”. All the relevant provisions including AS/NZS and EN deviations.
CAN/CSA-C22.2 No 950-95 “Safety of information technology equipment”.
ANSI/UL Std N0 1950 Third Edition “Safety of information technology equipment”.
Warning: Safety approval will become void if T800-23-0011 components are replaced
with non-equivalent rated or non-certified/approved components. Contact
Tait Electronics Technical Support before replacing components of the
T800-23-0011. See Section 6 for important servicing information.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
F1.6
General Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
Power Supply Description
2
Power Supply Description
2.1
Introduction
F2.1
The T800-23-0011 power supply consists of a Power Supply Unit (PSU) Module, connectors, and ferrite filters. These components are shown in Figure 2.1 below.
Feed through loom
from programming
port and speaker on
SL2 front panel to
back plane PCB.
PSU Module
Ferrite Bead
(Mains Input filter)
Ferrite Bead
(Mains Ground filter)
Chassis grounding point
using Earth Tag
IEC Plug
(Mains Input)
Internal Loom
Ferrite Sleeve
(DC Output filter)
Molex Socket
(DC Output)
Figure 2.1 T800-23-0011 internal view. See the Parts List in Section 6.2.2 for more detail.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
F2.2
Power Supply Description
2.1.1
PSU Module
M8SL2-00-002-812
The PSU module used in the T800-23-0011 power supply has over temperature, current
overload and overvoltage protection. Refer to Section 1.2 for specification details.
Overvoltage applied on the module’s output will cause the module to shutdown. To
reset the module, remove the mains supply to the T800-23-0011, allow 30 seconds for
charges to leak away, and then reconnect the T800-23-0011.
The module is protected from current overload by a voltage foldback method. If the
load on the output starts drawing more current than the specified maximum, the voltage will start dropping away. This condition will recover automatically when the load is
removed or returns to normal.
Over temperature will cause the module to shutdown. It will recover automatically
when it has cooled down to an acceptable operational temperature.
Caution:
Correct mounting of the T800-23-0011 power supply is important: Refer to
Section 3.3 for ventilation guidelines. Ignoring these conditions may cause
the module to overheat, and consequently, to shut down.
2.1.2
Internal Loom
Mains power to the PSU module is supplied via an IEC plug on the rear panel and then
filtered by a ferrite bead (shown in Figure 2.1). The mains ground line is filtered by a ferrite bead and then connected to the T800-23-0011 chassis and to the PSU module’s floating ground contact.
The PSU module’s output is filtered by a ferrite sleeve on the positive line, and then
interfaces to the SL2 backplane via a Molex connector on the T800-23-0011 rear panel.
Additionally a ‘feed-through’ loom is connected to the Molex connector. This loom
forms part of the path for the programming and speaker connection between the SL2
backplane and the SL2 front panel. The external cable connection between the
T800-23-0011 and the SL2 backplane completes this path.
For the wiring diagram, refer to Section 6.2.1.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Installation Guidelines
M8SL2-00-002-812
3
F3.1
Installation Guidelines
The following section gives a brief description of the basic rack mounting and wiring
procedures.
3.1
General
The T800-23-0011 is supplied mounted to the SL2 front panel by four M3x10 button hex
screws.
A small cable extending out of the front of the T800-23-0011 plugs onto to the SL2 front
panel. This cable forms part of the programming and speaker connection between the
SL2 front panel and the backplane. The external cable connection between the
T800-23-0011 and the SL2 backplane provides the DC power supply to the basestation
and also incorporates 3 wires completing the programming and speaker connection.
Warning:
FUSE
The cable connecting the T800-23-0011 DC power output to the backplane
also includes a fuse. This fuse is critical to the IEC 60950 safety compliance
of the T800 SL2 Base Station and must be replaced with the same component
or compliance will be voided.
The Fuse is a Bussmann TDC10 Series fast blow fuse rated at 12A (60VAC)
For the AC mains input connection of the T800-23-0011 use only an IEC type detachable
power supply cord (with a moulded IEC connector). Ensure that it has a current rating
of at least 5A.
3.2
Connector Pinouts
The pinouts for the AC mains input connector and the DC output connector on the rear
of the T800-23-0011 are shown in Figure 3.1 below.
IEC Plug (Mains Input)
Neutral
Live
Earth
Molex Socket (DC Output)
+13.8V
Ground
Ground
Programming port
(from front panel)
Speaker
(to front panel)
Figure 3.1 Connector Pinouts on the T800-23-0011 rear panel.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
F3.2
Installation Guidelines
3.3
Equipment Cooling
M8SL2-00-002-812
Although the T800-23-0011 is a high efficiency switching power supply, a considerable
amount of heat is generated during normal operation. An adequate flow of cooling air is
therefore essential for reliable operation.
Caution:
Do not operate this unit in a completely enclosed cabinet.
It is estimated that the average life expectancy of this unit will double with every 10°C
drop in ambient temperature. It is therefore recommended to:
• Keep the ambient temperature low.
• Ensure that airflow is not restricted.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Functional Testing
M8SL2-00-002-812
4
F4.1
Functional Testing
The following test procedures will confirm that the T800-23-0011 has been set up and
adjusted correctly and is fully operational. Refer to Figure 4.1 for test equipment details.
Oscilloscope
Isolating
Transformer
1kVA
Mains
Supply
Earth
Leakage
Circuit
Breaker
DC Load
0 to 30ADC
Variac
0 to 260VAC
1kVA
V
_
A
_*
Output
AC
Input
+
-
V
_
A
_
* True RMS Reading
T800-23-0011 PSU
Figure 4.1 Test equipment setup
4.1
Basic Operation
To confirm the basic operation of the power supply, proceed as follows.
• Ensure that the main supply to the T800-23-0011 is switched off. Set up the
test equipment as shown in Figure 4.1.
• Set the output DC load to maximum resistance/minimum current.
• Connect the T800-23-0011 to the mains supply and switch it on.
• Vary the DC load and check that the output voltage and current are within
the specifications (refer to Section 1.2.4).
4.2
Output Current Overload
To confirm the operation of the current overload protection circuitry, proceed as follows.
• Ensure that the main supply to the T800-23-0011 is switched off. Set up the
test equipment as shown in Figure 4.1.
• Set the output DC load to draw approximately 11A.
• Switch on the mains supply and slowly decrease the load resistance, thereby
increasing the current until voltage foldback occurs. The current should not
rise above the Current Overload Limit (refer to Section 1.2.4), but voltage
should drop away.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
F4.2
Functional Testing
4.3
Output Noise
M8SL2-00-002-812
To check that output noise is within specification, proceed as follows.
• Ensure that the main supply to the T800-23-0011 is switched off. Set up the
test equipment as shown in Figure 4.1. Connect the T800-23-0011 to the
mains supply and switch it on.
• Connect a digital voltmeter (e.g. Fluke 77) across the load terminals and set
the meter to its lowest AC volts range.
• Check that the reading is less than 100mVpp under all load and line conditions.
Note:
A real reading of the level of noise present on the output of a switching
power supply is very difficult to obtain, as low noise levels, common mode
noise paths and ground loops all lead to inaccurate measurement results.
The procedure outlined above will, however, give a good indication of the
output noise.
4.4
Overall Power Supply Stability
To check for overall PSU stability, proceed as follows.
• Ensure that the main supply to the T800-23-0011 is switched off. Set up the
test equipment as shown in Figure 4.1. Connect the T800-23-0011 to the
mains supply and switch it on.
• Connect the oscilloscope across the output.
• Vary the mains voltage and DC load over the full specified range (refer to
Section 1.2).
• Check on the oscilloscope that no oscillations occur.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Troubleshooting
M8SL2-00-002-812
5
F5.1
Troubleshooting
The following is a list of possible power supply fault symptoms and possible causes.
Symptoms
1.
2.
3.
No output voltage
Output voltage below
specification
Power Supply overheats
Possible Causes and their Solutions
Mains supply not present
or too low
Check and rectify mains
supply
Equipment has overheated and thermal cutout has operated
See Symptom 3 below
Defective switching circuitry
Replace module and
return faulty module for
servicing
Mains supply is to low
Check and correct mains
supply problem
Current overload protection is active
Check for possible causes,
e.g. short-circuits
Defective switching circuitry
Replace module or return
faulty module for servicing
Mains supply is to low
Check and correct mains
supply problem
Equipment cooling is inefficient due to incorrect
installation of the
T800-23-0011
Refer to Section 3.3 for
installation guidelines
The T800-23-0011 internal
fan has failed
Replace module or return
faulty module for servicing
© Copyright Tait Electronics Limited August 2004. All rights reserved.
F5.2
Troubleshooting
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
6
Service Information
F6.1
Service Information
This section provides specific information on servicing procedures for the T800-23-0011.
6.1
Warnings
6.1.1
Warning: Lethal Voltages
The T800-23-0011 power supply contains voltages that may be lethal.
Disconnect the mains IEC connector and wait for 5 minutes for the internal voltages to
drain away before dismantling.
Servicing should be carried out only by qualified technicians and should be attempted
only when powered through a mains isolating transformer of sufficient rating. It is
strongly recommended that the mains supply to the whole of the repair and test area is
supplied via an earth leakage circuit breaker.
6.1.2
Warning: Fuse
The cable connecting the T800-23-0011 DC power output to the backplane also includes
a fuse. This fuse is critical to the IEC 60950 safety compliance of the T800 SL2 Base Station and must be replaced with the same component or compliance will be voided.
The Fuse is a Bussmann TDC10 Series fast blow fuse rated at 12A (60VAC)
6.1.3
Caution: Handle With Care
Although this is a lightweight unit, it contains a number of quite heavy and fragile individual components which are mounted directly on the PCB. Severe mechanical shock
may damage the PCB (e.g. solder joints, copper tracks) and/or components (e.g. fragile
ferrite magnetic materials).
© Copyright Tait Electronics Limited August 2004. All rights reserved.
F6.2
Service Information
6.2
Mechanical
M8SL2-00-002-812
This section provides information necessary for replacement of various parts and modules of the T800-23-0011 power supply.
Warning: Safety approval will become void if T800-23-0011 components are
replaced with non-equivalent rated or non-certified/approved components. Contact Tait Electronics Technical Support before replacing components of the T800-23-0011.
The power supply module is not a user serviceable item. This module
contains components that operate at voltages that may be lethal. Do not
open this module.
Caution:
Disconnect the mains IEC connector and wait for 5 minutes for the internal
voltages to drain away before dismantling the T800-23-0011.
6.2.1
Wiring Diagram
Refer to the diagram below for connection information between the T800-23-0011’s connectors and powers supply module.
Yellow
Front panel programming port
and speaker connection
Red
Brown
Black
IEC Mains
Connector
1
2
Green&Yellow
Ground
Black
Chassis
Ground
Neutral
Live
Ferrite Beads
Blue
Red
Brown
Red
3
2
3
4
5
6
7
4
Gnd
5
+13.8V
6
Ferrite Sleeve
1
Gnd
Molex
Connector
3
6
2
5
1
4
External view
PSU Module
Figure 6.1 T800-23-0011 Wiring Diagram
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Service Information
M8SL2-00-002-812
6.2.2
Assembly Drawing
Figure 6.2 below shows an exploded view of the T800-23-0011.
Figure 6.2 Mechanical assembly of the T800-23-0011.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
F6.3
F6.4
Service Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
GI
M8SL2-00-002-812
Part G
Installation and Configuration
This part of the manual is divided into the sections listed below. These sections give a
brief description of the mounting and wiring procedures as well as some brief information on basic system types and how to configure T800 SL2 equipment for use in them.
Section
1
Title
Page
T800 SL2 Installation
1.2
1.1
Specifications
1.2
1.2
Mounting
1.2
1.3
Power Supply
1.2
1.4
Reverse Polarity and Overvoltage Protection
1.3
1.5
D-range Wiring
1.5
1.6
RF Coax Cable and N-Type Connector
1.6
T854 Optional Features
2.1
2.1
2.1.1
2.1.2
Audio Processor
Link Details
Typical Options
2.1
2.1
2.2
2.2
2.2.1
2.2.2
Line Transformer Configuration and Options
Line Limiter Option
Line Attenuator Option
2.2
2.4
2.4
2.3
Opto Key
2.4
2.4
Relay Driver
2.5
2.5
Local Microphone
2.5
2.6
Keying With Option PCBs
2.5
2.7
Transmit Key Time
2.5
2.8
Local PTT Indication for A800 SIM
2.6
2.9
Direct input to Buffer option
2.6
2.10
Line Input Control Replacement
2.6
3
Talk Through Repeater
3.1
4
Line Controlled Base without Talk Through
4.1
4.11
General
4.1
4.12
Transmitter Tail Timer
4.2
5
DC Line Keying
5.1
6
X800-56-PCB3 PCB Information
2
© Copyright Tait Electronics Limited August 2004. All rights reserved.
6.1.1
GII
M8SL2-00-002-812
Figure
Title
Page
1.1
T855 D-Range 1 Wiring – Rear View
1.3
1.2
T855 D-Range 2 Wiring – Rear View
1.3
1.3
T854 D-Range 1 Wiring – Rear View
1.4
1.4
T854 D-Range 2 Wiring – Rear View
1.4
1.5
N-Type Plug Assembly Details
1.5
1.6
T800 SL2 Assembly – with T803 fitted
1.7
1.7
T800 SL2 Assembly – without T803 fitted
1.8
1.8
T800 SL2 Assembly – with T803 fitted (rear view)
1.9
3.1
Talk Through Repeater
3.1
4.2
Basic Configuration
4.1
4.3
Remote Line Controlled Base Station
4.1
4.4
4-Wire to 2-Wire Converter
4.2
4.5
Receiver Disable Time vs Tail Time
4.2
5.6
DC Loop Keying With Common Earth
5.1
5.7
Isolated Constant Current Loop Current Detector
5.1
5.8
Isolated Loop Current Switch
5.2
5.9
Typical System
5.2
© Copyright Tait Electronics Limited August 2004. All rights reserved.
G1.1
M8SL2-00-002-812
1
T800 SL2 Installation
1.1
Specifications
Overall Dimensions:
Height
Width
Depth
Weight with Tone Remote
Weight without Tone Remote
1.2
… 132mm
… 480mm
… 335mm
… 16kg
… 13kg
Mounting
The T800SL2 unit is shipped ready assembled for fitting into racks. All that is required is
for the connection of suitable cables.
1.3
Power Supply
The power rating information for the T800SL2 with the Tait supplied power supply
module (T800-23-0011), is provided on the label located on the top cover as visible in
Figures 1.6.
The power rating information for the T800SL2 for use with a customer supplied DC
power source, is provided on the label located on the top rear of the Transmitter module.
In order to comply with the safety requirements of EN60950, the power supply module
used with the T800SL2 must be provided with an easily accessible mains disconnect
device compliant with IEC61058, such as a switch or circuit breaker. This provides the
means to rapidly disconnect the mains power in an emergency.
All Tait supplied racks incorporate a power distribution board with a circuit breaker
easily accessible in the back of the rack, on the lower right hand side (viewed from the
rear). The circuit breaker will disconnect the mains to the entire rack. If only one channel
needs to be mains-isolated and the Tait power supply module is T800-23-0011, then it is
acceptable practice to pull the IEC connector directly out of the power supply module.
If a customer supplied power source is used, it must have the following features:
•
An easily accessible and safety compliant mains disconnect device.
•
The capability to provide enough current to drive the T800 system.
•
Free from excessive ripple or noise.
•
Meets all EMC and safety regulations for the intended market.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
G1.2
M8SL2-00-002-812
The entire system should be protected by the use of appropriately rated fuses in the
power supply.
Note: It is particularly important when the prime power source is a battery that fuses be
employed in all the supply lines.
Warning:
1.4
Fuse – DC powered Base Stations
The cable supplied for connecting a DC power source such as a battery to
the backplane of the SL2 Base Station, includes a fuse. This fuse is critical
to the IEC 60950 safety compliance of the T800 SL2 Base Station and must
be used or compliance will be voided. If the fuse has blown it must be
replaced with the same component
The Fuse is a Bussmann TDC10 Series fast blow fuse rated at 12A
(60VAC)
Reverse Polarity and Overvoltage Protection
A crowbar diode is fitted to all T854 transmitters for protection against connection to a
power supply of incorrect polarity. It also provides overvoltage protection from voltage
transients caused by lightning strikes.
Note:
A fuse must be fitted in the power supply line for the diode to provide effective protection.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
G1.3
M8SL2-00-002-812
1.5
D-range wiring
The T855 and T854 D-range input and output connections are shown in Figure 1.1 to
Figure 1.4..
Adjustable -50 to +10dBm
10.8 to 16V DC
+13.8V
1
Line O/P1
2
Line O/P2
3
Line O/P3
4
Line O/P4
9
Receiver gate,
open collector
Relay
10
11
Gate O/P
Common 1
12
N.O. 1
13
14
Receiver gate relay
15
Gnd
Short together for
normal operation
2.0V = -100dBm
-110dBm
4.5V
0.5V/5dB
1V/15dB
5
RSSI
6
Audio 1
7
Serial Com
8
Speaker
External/auxiliary
audio processing
Can
Can be
be configured
configured as
as
Audio
Audio 22 by
by internal
internal link
resistors
if required.
link resistors
if required.
Power supply, -ve earth
1W into 4Ω
Figure 1.1 T855 D-Range 1 Wiring – Rear View
RX DISABLE
9
CTCSS DISABLE
CH_SLCT 7
10
SERIAL COM
Open drain type;
capable of sinking
2.25mA via 2k2Ω;
Vds max. = 5V
11
12
AUX-OUT 0
13
AUX-OUT 1
14
AUX-OUT 2
15
1
CH_SLCT 0
2
CH_SLCT 1
3
CH_SLCT 2
4
CH_SLCT 3
5
CH_SLCT 4
6
CH_SLCT 5
7
CH_SLCT 6
8
GND
Figure 1.2 T855 D-Range 2 Wiring – Rear View
(standard T800-03-0000 kit)
© Copyright Tait Electronics Limited August 2004. All rights reserved.
G1.4
M8SL2-00-002-812
Sensitivity: –30dBm
10.8 to 16V DC
+13.8V
High isolation
keying option:
6 to 50V DC
9
10
To key transmitter:
high impedance
<0.7V = key
Opto Key +
11
Opto Key -
12
Tx Key
13
14
15
Gnd
See details below
1
Line I/P1
2
Line I/P2
3
4
Line I/P3
Line I/P4
5
Tx Enable
6
Audio 2
7
Serial Com
8
CTCSS
To key PA, open
collector
External/auxiliary
audio processing
Can be configured as
Audio 1 by internal
link resistors if required
Power supply, –ve earth
External CTCSS input:
1kHz deviation at150Hz (500mVrms)
Figure 1.3 T854 D-Range 1 Wiring – Rear View
Line I/P2 and Line I/P3
If %T210A or %T210B is fitted without a centre tapped transformer (usual configuration), these lines can be shorted together or left open to be used as inputs to the audio
cavity.
If %T210A or %T210B is fitted with a centre tapped transformer, these lines must be left
open. Line I/P3 becomes the centre tap on the transformer.
If %T210 is fitted (Pot core type), short these lines together for normal operation.
1
Open drain type;
capable of sinking
2.25mA via 2k2kΩ;
Vds max = 5V
For Forward Power
Signal, remove R841.
Add %R308, 10kΩ
TX RELAY DRV
9
CTCSS DISABLE
10
CH_SLCT 7
11
SERIAL COM
12
AUX-OUT 0
13
AUX-OUT 1
14
AUX-OUT 2
15
CH_SLCT 0
2
CH_SLCT 1
3
CH_SLCT 2
4
5
CH_SLCT 3
CH_SLCT 4
6
CH_SLCT 5
7
CH_SLCT 6
8
GND
For Reverse Power
Signal, remove R840.
Add %R310, 10kΩ
Figure 1.4 T854 D-Range 2 Wiring – Rear View
(standard T800-03-0000 kit)
Note:
Figure 1.4 above shows the standard pin allocations for the T800-03-0000
auxiliary D-range kit. A T800-03 auxiliary D-range kit is also available for
special applications requiring custom internal wiring.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
G1.5
M8SL2-00-002-812
1.6
RF Coax Cable and N-Type Connector
Make sure the RF coax cable to the N-type connector is free from sharp bends or twists.
If access to the rear of the rack frame is restricted, the cable should be long enough to
allow the slimline assembly to be fully withdrawn from the cabinet.
Make sure that any N-type plugs connected to Tait equipment are assembled according
to the manufacturer’s instructions. It is particularly important that the centre pin in the
plug is positioned correctly:
• if the pin is positioned too far back in the plug, it may not make good contact
with the socket;
• if the pin protrudes too far (as shown in Figure 1.5), or is not straight, it may
damage the socket when the plug is screwed in.
N-Type Plug and Socket Cross-section
Correct pin position
Extended pin position
No damage to socket
Will damage socket
Hand tighten only
Figure 1.5 N-Type Plug Assembly Details
© Copyright Tait Electronics Limited August 2004. All rights reserved.
G1.6
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
T800 SL2
Figure 1.6 T800 SL2 Assembly
– with T803 fitted
© Copyright Tait Electronics Limited August 2004. All rights reserved.
G1.7
G1.8
T800 SL2
M8SL2-00-002-812
Figure 1.7 T800 SL2 Assembly
– without T803 fitted
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T800 SL2
M8SL2-00-002-812
Transmitter
Receiver
Power Supply
Power Rating Label
Front Panel
Backplane PCB
Tone Remote
Figure 1.8 T800 SL2 Assembly
– with T803 fitted (rear view)
© Copyright Tait Electronics Limited August 2004. All rights reserved.
G1.9
G1.10
T800 SL2
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Optional Features
M8SL2-00-002-812
2
T854 Optional Features
2.1
Audio Processor
G2.1
The T854 come with a number of link selectable features which give added system flexibility.
Note:
The tables in this section are the same as those in Section 3.5 in Part C. They
have been repeated here for ease of reference.
2.1.1
Link Details
Use the following table to set up the audio processor to the configuration you require.
You should set the audio processor links before carrying out any of the tuning and
adjustment procedures.
Linka
Plug
PL201
PL202
Function
1–2
A
not connected
b
3–4
B
microphone pre-amp output to compressor input
5–6
C
microphone pre-amp output to multiplexer input
D
pre-emphasis output to multiplexer input
b
9–10
E
pre-emphasis output to limiter input
11–12
F
not connected
13–14
G
not connected
1–2b
H
compressor output to multiplexer input
3–4
I
compressor output to limiter input
5–6
J
compressor output to pre-emphasis input
7–8
K
not connected
9–10b
L
multiplexer output to pre-emphasis input
11–12
M
multiplexer output to limiter input
13–14
N
multiplexer output to compressor input
7–8
a. The letters in this column refer to the letters printed on the PCB beside each pair of pins.
Note that the link names and pin numbers are different to earlier products. The lettering A
to N is however the same.
b. Factory Setting
© Copyright Tait Electronics Limited August 2004. All rights reserved.
G2.2
T854 Optional Features
2.1.2
Typical Options
M8SL2-00-002-812
PL205
PL210
PL215
PL220
3–4a
1–2a
3–4a
3–4a
B
L
H
E
3–4
3–4
7–8
1–2
B
M
J
D
line and microphone compressed
and pre-emphasised
5–6
5–6
7–8
3–4
C
N
J
E
microphone pre-amp. compressed;
3–4
3–4
3–4
5–6
line and microphone flat response
B
M
H
F
microphone pre-amp. compressed
and pre-emphasised;
line input pre-emphasised
(standard set-up)
microphone pre-amp. compressed
and pre-emphasised;
line input unprocessed
a. Factory Setting
2.2
Line Transformer Configuration and Options
There are four Line Transformer options.
%T210
original T800 Line transformer T4030, 300/300:300/300
%T210A
ETAL P1200 or similar 600:600 non centre-tapped leaded encapsulated Line
transformer
or
ETAL P2602 or similar 300/300:600 centre-tapped leaded encapsulated Line
transformer
%T210B
ETAL P2781 or similar 600:600 non centre-tapped SMD encapsulated Line
transformer
or
ETAL P2782 or similar 300/300:600 centre-tapped SMD encapsulated Line
transformer
No transformer leaded (%R200 and %R203) or SMD (%R200A and %R203A ) by-pass
resistors fitted, and an attenuator pad if necessary.
The default option is %T210B, SMD P2781 or similar 600:600 non centre-tapped SMD
encapsulated Line transformer.
%T210A and %T210B use a standard footprint which allows the use of other similar
transformers with special characteristics, such as the ETAL P3181 ultra-low distortion
V.90 SMD.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Optional Features
M8SL2-00-002-812
G2.3
The line transformer is designed to provide a balanced interface to 600Ω lines, connected between LINE I/P 1 and LINE I/P 4. When %T210 is fitted, the two centre connections (LINE I/P 2 and LINE I/P 3) are shorted together for normal operation. With
the other options these two centre connections are available to the user via P204 and
P208, unless a centre-tapped %T210A or %T210B is used, wired to LINE I/P 3.
The secondary winding of the transformer is connected via 1kΩ (R202) and 10Ω (R160)
resistors to pin 6 (AUDIO-2) of D-range 1 and may be used to monitor audio on the line.
Pin 7 of D-range 1 can be reconfigured as AUDIO-1 by removing R808 and R160, and
placing %R150. Note that this configuration does not allow external programming of
the module
Transformer
T4030
P1200
P2781
053-00010-17
054-00010-16
054-00010-18
%T210
%T210A
%T210B
%R200
Not Fitted
Not Fitted
Not Fitted
Not Fitted
%R200A
Not Fitted
Not Fitted
Not Fitted
0Ω
%R203
Not Fitted
Not Fitted
Not Fitted
Not Fitted
%R203A
Not Fitted
Not Fitted
Not Fitted
0Ω
%R203B
Not Fitted
0Ω
0Ω
Not Fitted
%R203C
0Ω
Not Fitted
Not Fitted
Not Fitted
%R203D
0Ω
Not Fitted
Not Fitted
Not Fitted
%R203E
Not Fitted
560Ω
560Ω
560Ω
560Ω
Not Fitted
Not Fitted
Not Fitted
C201
4U7 BP
4U7 BP
4U7 BP
Not Fitted
C202
4U7 BP
4U7 BP
4U7 BP
Not Fitted
%C204
4U7 BP
Not Fitted
Not Fitted
Not Fitted
%C205
4U7 BP
Not Fitted
Not Fitted
Not Fitted
%C203A
Not Fitted
15nF
15nF
Not Fitted
%C203B
Not Fitted
15nF
15nF
Not Fitted
IPN
Designator
%R201
No
Transformer
%R203C and %R203D have replaced SL201 and SL202.
To retain the DC loop keying keying facility, there is a centre-tapped version of the
ETAL leaded and SMD transformers, the P2602 and P2782 respectively. This will only
work for Common Earth systems. If full isolated DC loop keying is required, then the
T4030 must still be used. The T4030 must also be used if the Transmitter is to be used as
half of a 2-wire to 4-wire hybrid.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
G2.4
T854 Optional Features
2.2.1
Line Limiter Option
M8SL2-00-002-812
This option should be fitted if no line transformer is installed.
Enabled
Disabled
%D205
1N4531
Not Fitted
%D210
1N4531
Not Fitted
2.2.2
Line Attenuator Option
When enabled this attenuates the line input by approximately 20dB
Enabled
Disabled
Link 1
Open
Closed
%R211
470Ω
Not Fitted
%R220
470Ω
Not Fitted
%R228
120Ω
Not Fitted
2.3
Opto Key
The keying circuitry may be completely isolated from the rest of the system by means of
the optocoupler (IC250). A constant current source (Q270) allows keying voltages
between 6 and 50 V.
R240
R243
Opto+ to PL100/11
PL100/11 Free
0Ω
Not Fitted
Opto- to PL100/12
PL100/12 Free
0Ω
Not Fitted
R240 and R243 have replaced SL203 and SL204, originally on the T856 underside. These
connect the opto key to D-range 1 pins 11 and 12, and when removed free the D-range
pins for alternative use.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
T854 Optional Features
M8SL2-00-002-812
2.4
G2.5
Relay Driver
A dedicated transistor (Q250) is provided for the purpose of switching an external (e.g.
coaxial) relay. The output is open collector and is activated by the Tx-Reg rail. This output is available on pin 9 of the T800-03-0000 auxiliary D-range connector (D-range 2).
2.5
Local Microphone
Use of the local microphone (via the front panel stereo socket) will disable the audio
input from the line. The audio switching occurs when the PTT switch is closed.
2.6
Keying With Option PCBs
If an option PCB is fitted, the exciter may be keyed via the TX-ENB-OPT pad in the
audio processor. The line must be pulled low to key.
2.7
Transmit Key Time
(Refer to the appropriate test points and options connections drawing in Section 6 in
Part C.)
A solder link (SL501) is provided on the bottom of the PCB to allow two transmit key
time options, as shown in the table below.
Transmit Key Time
standard
30ms (approx.)
short*
<5ms
SL501
not linked
linked
*In this configuration the standby spurious emissions should be <–65dBm.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
G2.6
T854 Optional Features
2.8
Local PTT Indication for A800 SIM
M8SL2-00-002-812
This option allows the use of D-range 1 pin 3 for an external PTT indication when the
mic PTT or carrier switch is activated. Used for A-800 SIM or any other external control
or CTCSS unit.
Enabled
Disabled
D245
BAW56
BAW57
R276
0Ω
0Ω
%R276A
0Ω
Not fitted
%R203C
Not fitted
See transformer option table
2.9
Direct input to Buffer option
A direct input for data use. Note that this input will have 4.5V half-rail, and needs isolation unless R289 is also removed. Leaving R291 as 0Ω and removing &R290 may
improve data shape (less overshoot), as &C289 is still in circuit.
Enabled
Disabled
%R246
0Ω
Not fitted
%R291
Not fitted
0Ω
%C265
Not fitted
4U7 BP
%R259
Not fitted
22K
2.10
Line Input Control Replacement
The Line Input control can be replaced with fixed resistors if required.
Enabled
Disabled
%R222
4K7
Not fitted
%R234
4K7
Not fitted
%RV210
Not fitted
10K Log
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Talk Through Repeater
M8SL2-00-002-812
3
G3.1
Talk Through Repeater
In this configuration the receiver directly keys the transmitter when the signal is
received. The demodulated audio is fed via 600Ω lines to the transmitter to modulate
the carrier. The receiver and transmitter operate simultaneously and must therefore be
on different frequencies. The minimum frequency separation depends on the duplexer
used.
Antenna
Receive Port
RF In
'N' Socket
Line Out
Receiver
Transmit Port
Duplexer
RF Out
'N' Socket
Typical line level -15dBm
Tx Key Out
Line In
Tx Key In
Monitor
Out
Mic.
In
Monitor
Speaker
Local
Microphone
+
13.8V
Supply
-
Figure 3.1 Talk Through Repeater
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Transmitter
G3.2
Talk Through Repeater
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Line Controlled Base without Talk Through
M8SL2-00-002-812
4
Line Controlled Base without Talk
Through
4.11
General
G4.1
This installation contains a transmitter and receiver which may or may not be on the
same frequency, thus simultaneous transmission and reception is not possible. When
the transmitter is keyed, the coaxial relay is also energised. When the relay is in its rest
position, signals from the antenna are passed to the receiver and the demodulated output is fed via 600Ω lines to the RCU.
The receiver is disabled when the transmitter is energised to prevent the receiver mute
opening from RF due to lack of isolation in the relay, direct radiation or the noise skirt of
the dual frequency link.
Since the base station may be controlled via a 2-wire line and a 4-wire to 2-wire hybrid,
there is a possibility of system oscillation if the receiver is not disabled during transmit.
This occurs when the transmit energy enters the receiver and produces an audio
response which can pass from the receive to the transmit audio part of the hybrid
(impedance imbalance, etc).
Antenna
DC
Key
Logic
DC Relay
Control
Tx
Enable
Tx
RF Out
RF In
Coax
Relay
Rx Disable
Figure 4.2 Basic Configuration
Antenna
Tx
RF Out
Coax
Relay
Rx
RF In
Hybrid
Rx AF
Tx AF
Remote
Control
Microphone
Speaker
PTT
Figure 4.3 Remote Line Controlled Base Station
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Rx
G4.2
Line Controlled Base without Talk Through
M8SL2-00-002-812
Receiver
Transmitter
RV1
1k
C1
approx. 2µ
Hybrid Balance
C2
2-Wire Line
Figure 4.4 4-Wire to 2-Wire Converter
Note:
This configuration is only possible when transformer %T210 and T4030 are
fitted. Refer to Section 2.2.
4.12
Transmitter Tail Timer
If the transmitter has the tail timer enabled:
•
the receiver disable timer must be set so that tRx/Dis > tTx/Tail;
Tx Enable
& Rx Disable
On
Tx Reg.
Rx Off
Rx Disable Time
No Tx or Rx
Tail Time
Figure 4.5 Receiver Disable Time vs Tail Time
•
if the system configuration also uses an aerial changeover relay as well as the tail
timer, the changeover relay must be driven from the relay driver (Q250) in the
audio processor, rather than by Tx-Key or Tx-Enable; this output is available on
pin 9 of the T800-03-000 auxiliary D-range (D-range 2);
•
depending on tail time requirements, it is possible for the transmitter tail time to
exceed the receiver disable time capability; in this situation the receiver disable
line should also be driven from relay driver Q250 (D-range 2 pin 9).
© Copyright Tait Electronics Limited August 2004. All rights reserved.
DC Line Keying
M8SL2-00-002-812
5
G5.1
DC Line Keying
Where the transmitter and receiver are separated by only a short distance and DC isolation is not required, DC loop keying may be employed.
This feature is not available with standard line transformer ETAL P2781
(%T201B). Refer to Section 2.2.
Note:
A small DC current (usually less than 10mA) can be fed via the balanced 2-wire line to
provide remote control of various functions.
In a duplex system the receiver mute is used to key a transmitter, provided there is a
common earth between the two units (refer to Figure 5.6).
Receiver
Audio Out
Transmitter
Pin 4 (PL100)
Pin 1 (PL100)
T210
1
8
2
7
3
6
4
5
T210
Short Line
C266
C268
1
8
7
Pin 2
Pin 3
2
Pin 3
Pin 2
3
6
Pin 4
Pin 1
4
5
C201
C202
+9V
RL210
Pin 12
R657
Pin 13
D620
Pin 11
Optional:
+
Relay contact or Opto Key
Q270 collector
can be used.
Pin 12
Q270
Pin 14
Pin 14
Pin 15
Pin 15
Earth
OR
Transmitter
Tx Key Pin 13
Audio
Processor
Keying
Logic
T210A/B
1
2
3
4
C201, 202, 230A %R203B/C/D
not shown for clarity
Figure 5.6 DC Loop Keying With Common Earth
Where the receiver and transmitter (or remote control) are distant, DC loop keying is
provided by an isolated supply, driver and detector because an earth cannot be relied on
(refer to Figure 5.7, Figure 5.8 and Figure 5.9).
OPTO-KEY+
R240
OPTO-KEY+
D260
2
3
BAW56
D260
1
3
BAW56
1
R269
10K
P219
IC250
4N25A
R270
470
2
OPTO-KEY-
1
D270
3
BAV99
OPTO-KEY-
5
I/OPAD
I/OPAD
P225
R243
3
D270
BAV99
2
Q270
BD139
6
4
R271
390K
Det.
C275
120P
R268
100
OPTO-KEY
Figure 5.7 Isolated Constant Current Loop Current Detector
(Opto-key input on T854)
© Copyright Tait Electronics Limited August 2004. All rights reserved.
G5.2
DC Line Keying
M8SL2-00-002-812
+
O
+
O
O
SW
O
-
O
-
Figure 5.8 Isolated Loop Current Switch
Long Line
Unit 1
Isolated
Supply
+
-
SW
Unit 2
Optional bridge
to protect against
polarity reversals
(T223 only).
Det
Figure 5.9 Typical System
© Copyright Tait Electronics Limited August 2004. All rights reserved.
X800-56-PCB3 PCB Information
M8SL2-00-002-812
6.2
G6.2.1
X800-56-PCB3 Backplane PCB
Caution:
This equipment contains CMOS devices which are susceptible to damage from
static charges.
This section contains the following information.
IPN
220-01702-02
Section
Page
Backplane Links and Switches
6.2.3
Parts List
6.2.5
PCB Layout – Top Side
6.2.7
PCB Layout – Bottom Side
6.2.8
Circuit Diagram
6.2.9
© Copyright Tait Electronics Limited August 2004. All rights reserved.
X800-56-PCB3 PCB Information
M8SL2-00-002-812
6
G6.1.1
X800-56-PCB3 PCB Information
This part of the manual provides the parts list, PCB layouts and circuit diagram for the
X800-56-PCB3 backplane PCB. There is a detailed table of contents at the start of Section 2.
Section
Title
1
Introduction
2
X800-56-PCB3 backplane PCB
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN
Page
6.1.1
220-01702-02
6.2.1
G6.1.2
X800-56-PCB3 PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
X800-56-PCB3 PCB Information
M8SL2-00-002-812
6.1
G6.1.3
Introduction
PCB Identification
All PCBs are identified by a unique 10 digit “internal part number” (IPN), e.g. 220-12345-00, which
is screen printed onto the PCB (usually on the top side), as shown in the example below:
The last 2 digits of this number define the issue status, which starts at 00 and increments through 01,
02, 03, etc. as the PCB is updated. Some issue PCBs never reach full production status and are therefore not included in this manual. A letter following the 10 digit IPN has no relevance in identifying
the PCB for service purposes.
Note:
It is important that you identify which issue PCB you are working on so that you can
refer to the appropriate set of PCB information.
Parts Lists
The 10 digit numbers (000-00000-00) in this Parts List are “internal part numbers” (IPNs). We can
process your spare parts orders more efficiently and accurately if you quote the IPN and provide a
brief description of the part.
The components listed in this parts list are divided into two main types: those with a circuit reference (e.g. C2, D1, R121, etc.) and those without (miscellaneous and mechanical).
Those with a circuit reference are grouped in alphabetical order and then in numerical order within
each group. Each component entry comprises three or four columns, as shown below:
circuit reference lists components
in alphanumeric
order
variant column indicates that this is
a variant component
which is fitted only to
the product type listed
description gives a brief description
of the component
Internal Part Number order the component
by this number
The mechanical and miscellaneous section lists the variant and common parts in IPN order.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
G6.1.4
X800-56-PCB3 PCB Information
M8SL2-00-002-812
Grid Reference Index
This section contains a component grid reference index to help you find components and labelled
pads on the PCB layouts and circuit diagrams. This index lists the components and pads in alphanumeric order, along with the appropriate alphanumeric grid references, as shown below:
PCB layout
reference
circuit diagram
reference
components listed
in alphanumeric order
component location
on the sheet
sheet number
component location
on the layer
layer number 1 = top side layer
2 = bottom side layer
Using CAD Circuit Diagrams
Reading a CAD circuit diagram is similar to reading a road map, in that both have an alphanumeric
border. The circuit diagrams in this manual use letters to represent the horizontal axis, and numbers
for the vertical axis. These circuit diagram “grid references” are useful in following a circuit that is
spread over two or more sheets.
When a line representing part of the circuitry is discontinued, a reference will be given at the end of
the line to indicate where the rest of the circuitry is located, as shown below. The first digit refers to
the sheet number and the last two characters refer to the location on that sheet of the continuation of
the circuit (e.g. 1R3).
DISCRIMINATOR
1R3
2R9
2R9
8A2
C371
%R338
100
10U
R339
100K
C369
100P
these grid references
show where the circuit
is continued
C301
4N7
R303
L310
33U
D
4R4
G S
IF-SIG
12
© Copyright Tait Electronics Limited August 2004. All rights reserved.
G6.2.2
X800-56-PCB3 PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
X800-56-PCB3 PCB Information
M8SL2-00-002-812
G6.2.3
Backplane Links and Switches
The tables below explain the functions of each of the links and switches on the X800-56-PCB3 backplane.
Link
Function
Notes
LN1,
LN2
Connects balanced audio from the receiver to the transmitter.
LN3
Connects Rx-Gate to Tx-Key.
LN4
Select between primary serial comms (link pins 2–3) or
secondary (link pins 1–2).
LN5
Connects Tx-Relay-Driver output from transmitter to
the coax relay.
LN6
Select between serial comms (link pins 1–2) or RSSI (link
pins 2–3) on pin 11 of SK6 (Auxiliary connector).
LN7
Links external (or T803) CTCSS audio to transmitter.
T803 CTCSS audio not available at time of publication.
Link pins 1–2. Connects unbalanced Rx audio
(‘Audio1’) to T803. Not to be used when CTCSS is
present on RX audio as internal CTCSS filtering cannot
be applied to this path. For CTCSS use the option below.
Adjust level using RV2. Level to T803 independent of Rx Line Level control.
Link Pins 2–3 and Pins 4–5. Changes the balanced Rx
Line audio output to unbalanced for the T803. This
option should be used when CTCSS is present on RX
audio so that the internal CTCSS filter can be applied.
Level to T803 controlled by RX Line Level control.
For talk-through operation.
Secondary serial comms is via the receiver and
transmitter Aux connectors (second D-ranges).
LN8
LN9
T854 transmitters (after S/N 13098764):
Select between Transmitter Aux-Out-0 (link pins 2–3) or
direct FWD power sense voltage (link pins1–2). The latter could be used for an externally fitted RF power indicator or alarm.
If an internal alarm board is fitted Aux-Out-0
(link pins 2–3) becomes FWD power alarm output.
Older T854 transmitters (s/n 13098764 or earlier):
Select between Transmitter Aux-Out-0 (link pins 2–3) or
Aux-Out-1 (link pins 1–2).
LN10
T854 transmitters (after S/N 13098764):
Select between direct FWD power sense voltage (link
pins 2–3) or direct REV power sense voltage (link
pins1–2). Could be used for an externally fitted RF
power indicator or alarm.
If an internal alarm board is fitted direct FWD
power sense voltage (link pins 2–3) becomes REV
power alarm output.
Older T854 transmitters (s/n 13098764 or earlier):
Selection between transmitter Aux-Out-1 (link pins 2–3)
or Aux-Out-2 (link pins1–2).
LN11
Connects RX CTCSS disable from the T803 to the
receiver.
LN12
Connects Tx-Relay-Driver output from the transmitter
to RX-Inhibit on the receiver.
Recommended setting to prevent the receiver
mute from inadvertently opening.
Table 6.1 X800-56-PCB3 links
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01702-02
G6.2.4
X800-56-PCB3 PCB Information
Switch
M8SL2-00-002-812
Function
SW1-1
Hardware selection of channel select 1
SW1-2
Hardware selection of channel select 2
SW1-3
Hardware selection of channel select 3
SW1-4
Hardware selection of channel select 4
SW1-5
Hardware selection of channel select 5
SW1-6
Hardware selection of channel select 6
SW1-7
Hardware selection of channel select 7
SW1-8
Hardware selection of channel select 8
Notes
Leave OFF for Channel select via
T803 and or PGM800Win
T854 transmitters (after S/N 13098764 ):
When ON connects transmitter Aux-Out-0 or direct FWD power
sense voltage to ground, depending on the links on LN9. See
description of LN9 in the previous table
Not recommended that direct FWD
power sense voltage is grounded.
SW2-1
For older T854 transmitters (s/n 13098764 or earlier):
When ON connects transmitter Aux-Out-0 or Aux-Out-1 to
ground, depending on the links on LN9. See description of LN9 in
the previous table.
T854 transmitters (after S/N 13098764):
When ON connects direct FWD power sense voltage or direct REV
power sense voltage to ground depending on the links on LN10.
See description of LN10 in the previous table.
Not recommended
SW2-2
For older T854 transmitters (s/n 13098764 or earlier):
When ON connects transmitter Aux-Out-1 or Aux-Out-2 to
ground, depending on the links on LN10. See description of LN10
in the previous table.
SW2-3
When ON connects Serial Comms to Pin 6 of transmitter D-Range1
SW2-4
When ON connects Serial Comms to the transmitter (Tx D-Range1
pin 7)
Default = ON
SW2-5
When ON connects Serial Comms to the receiver (Rx D-range1 pin
7) and the T803
Default = ON
SW2-6
Not used
SW2-7
When ON connects Tx-Key to ground
SW2-8
Not used
SW3-1
When ON connects Rx-Audio through to the T803 and the external
Auxiliary connector ( SK13 pin2 )
SW3-2,
SW3-3
When ON connects balanced audio from the T803 or the external
Auxiliary connector ( SK13 pins 3 and 4 ) to the Transmitter.
SW3-4
When ON connects Receiver RSSI through to the T803
SW3-5
When ON connects Tx-Key from the T803 to the Transmitter
SW3-6
When ON connects Rx-Gate to the T803 and the external Auxiliary
connector ( SK13 pin9 )
SW3-7
When ON connects T803 CTCSS audio to the transmitter.
SW3-8
Not used.
T803 CTCSS audio not available at
time of publication.
Figure 6.10 X800-56-PCB3 switches
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01702-02
X800-56-PCB3 PCB Information
M8SL2-00-002-812
G6.2.5
X800-56-PCB3 Parts List/Grid Reference Index (IPN 220-01702-02)
How To Use This Parts List
The components listed in this parts list are grouped in alphabetical order and then in numerical order within each group. Each component entry comprises three or four columns: the circuit reference, variant (if applicable), IPN and description. A number in the variant
column indicates that this is a variant component which is fitted only to the product type listed.
This parts list is correct at the time of publishing, but is subject to change without notification. An up to date parts list can be obtained
from your local Customer Service Organisation
Ref
IPN
Description
Ref
IPN
C1
020-09120-01
120UF 6.3Dx15H mm
TP1
CN1
240-04030-09
SK2TB TERMINAL BLOCK 2WAY SIDE ENTRY
TP2
D1
D2
D3
D4
D5
D7
D8
001-50012-05
001-00015-12
001-00011-70
001-00011-70
001-00011-70
001-00011-70
001-00011-60
1N4531 AI SMALL SIGNAL
BZX79 VOLTAGE REGULATOR
1N4001 GENERAL PURPOSE
1N4001 GENERAL PURPOSE
1N4001 GENERAL PURPOSE
1N4001 GENERAL PURPOSE
MR760 HIGH CURRENT CASE 194-04
TP3
UNI-009TP-XX PROBE TESTPOINT WITH A 0.8MM HOLE AND A
1.25MM COPPER PAD
UNI-009TP-XX PROBE TESTPOINT WITH A 0.8MM HOLE AND A
1.25MM COPPER PAD
UNI-009TP-XX PROBE TESTPOINT WITH A 0.8MM HOLE AND A
1.25MM COPPER PAD
F1
F2
265-00010-69
265-00010-69
900MA RESETABLE 30V 40A
900MA RESETABLE 30V 40A
LN1
LN10
LN11
LN12
LN2
LN3
LN4
LN5
LN6
LN7
LN8
LN9
240-00020-68
240-00020-59
240-00020-68
240-00020-68
240-00020-68
240-00020-68
240-00020-59
240-00020-68
240-00020-59
240-00020-68
240-00020-58
240-00020-59
HEADER PLUG 2WAY WITH SHORTING LINK
HEADER PLUG 3WAY WITH SHORTING LINK
HEADER PLUG 2WAY WITH SHORTING LINK
HEADER PLUG 2WAY WITH SHORTING LINK
HEADER PLUG 2WAY WITH SHORTING LINK
HEADER PLUG 2WAY WITH SHORTING LINK
HEADER PLUG 3WAY WITH SHORTING LINK
HEADER PLUG 2WAY WITH SHORTING LINK
HEADER PLUG 3WAY WITH SHORTING LINK
HEADER PLUG 2WAY WITH SHORTING LINK
HEADER PLUG 5WAY WITH SHORTING LINK
HEADER PLUG 3WAY WITH SHORTING LINK
MT1
MTG-C420P-35 P3MM5_420C MOUNTING HOLE 3.5MM HOLE
4.2MM PAD
MTG-C420P-35 P3MM5_420C MOUNTING HOLE 3.5MM HOLE
4.2MM PAD
MTG-C420P-35 P3MM5_420C MOUNTING HOLE 3.5MM HOLE
4.2MM PAD
MT2
MT3
PL1
PL2
240-00020-58
240-02011-20
HEADER PLUG 5WAY WITH SHORTING LINK
"HEADER 4WAY 1ROW 200"" PITCH TOP ENT
WITH SHROUD"
"HEADER 4WAY 1ROW 200"" PITCH TOP ENT
WITH SHROUD"
HEADER PLUG 6WAY 2X3 TOP ENTRY WITH
SHROUD
PL3
240-02011-20
PL4
240-00010-64
Q1
Q2
000-50010-60
000-00010-66
BC327 AI AF POWER
BC337 AF POWER
R1
R2
R3
R4
R5
R6
R7
R8
R9
RV1
RV2
030-02100-00
032-05100-00
032-04100-00
032-04100-00
032-04100-00
032-04220-00
030-03270-00
030-03270-00
030-03270-00
042-05100-10
042-06100-09
10 FILM 7X2.5MM
10K M/F 7X2.5MM
1K M/F 7X2.5MM
1K M/F 7X2.5MM
1K M/F 7X2.5MM
2.2K M/F 7X2.5MM
270 FILM 7X2.5MM
270 FILM 7X2.5MM
270 FILM 7X2.5MM
10K CERMET 9.5mm SQ Top Adjust 3386P
100K CERMET 9.5mm SQ Top Adjust 3386P
SK1
SK10
SK11
SK12
SK13
SK14
SK15
SK2
SK3
SK4
SK5
SK6
SK7
SK8
SK9
SW1
SW2
SW3
240-02020-15
240-00010-79
240-00010-79
240-00010-79
240-02020-15
240-04020-54
240-04020-54
240-02020-15
240-02020-15
240-02020-15
240-04020-54
240-02020-15
240-00010-79
240-00010-79
240-00010-79
230-00010-19
230-00010-19
230-00010-19
SKT 15WAY DRANGE ASTRON AT-DB500-15-F-A55
SKT 10WAY 2X5 AMP MICRO MATCH TOP ENTRY
SKT 10WAY 2X5 AMP MICRO MATCH TOP ENTRY
SKT 10WAY 2X5 AMP MICRO MATCH TOP ENTRY
SKT 15WAY DRANGE ASTRON AT-DB500-15-F-A55
SKT 16WAY AMP MICRO MATCH TOP ENTRY
SKT 16WAY AMP MICRO MATCH TOP ENTRY
SKT 15WAY DRANGE ASTRON AT-DB500-15-F-A55
SKT 15WAY DRANGE ASTRON AT-DB500-15-F-A55
SKT 15WAY DRANGE ASTRON AT-DB500-15-F-A55
SKT 16WAY AMP MICRO MATCH TOP ENTRY
SKT 15WAY DRANGE ASTRON AT-DB500-15-F-A55
SKT 10WAY 2X5 AMP MICRO MATCH TOP ENTRY
SKT 10WAY 2X5 AMP MICRO MATCH TOP ENTRY
SKT 10WAY 2X5 AMP MICRO MATCH TOP ENTRY
DIP-8 SW X 8 SPST DIP
DIP-8 SW X 8 SPST DIP
DIP-8 SW X 8 SPST DIP
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Description
IPN 220-01702-02
G6.2.6
X800-56-PCB3 PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01702-02
M8SL2-00-002-812
X800-56-PCB3 PCB Information
X800-56-PCB3 PCB (IPN 220-01702-02) – Top Side
220-01702-02
© Copyright Tait Electronics Limited August 2004. All rights reserved.
G6.2.7
IPN 220-01702-02
G6.2.8
X800-56-PCB3 PCB Information
M8SL2-00-002-812
X800-56-PCB3 PCB (IPN 220-01702-02) – Bottom Side
220-01702-02
© Copyright Tait Electronics Limited August 2004. All rights reserved.
IPN 220-01702-02
M8SL2-00-002-812
X800-56-PCB3 PCB Information
X800-56-PCB3 circuit diagram
220-01702-02
© Copyright Tait Electronics Limited August 2004. All rights reserved.
G6.2.9
IPN 220-01702-02
G6.2.10
X800-56-PCB3 PCB Information
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
HI
M8SL2-00-002-812
Part H
T800 Ancillary Equipment
This part of the manual features a brief description of the major ancillaries that may be
used with T800 SL2 equipment. For a comprehensive list of available ancillary equipment, please contact your nearest Tait Dealer or Customer Service Organisation.
Section
Page
Programming Kits
1.1
General Ancillaries
1.2
Paging
1.3
External Frequency Reference
1.4
© Copyright Tait Electronics Limited August 2004. All rights reserved.
HII
M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
T800 Ancillary Equipment
1
T800 Ancillary Equipment
1.1
Programming Kits
H1.1
T800-01-0000
The T800-01-0000 kit is used for programming T800 SL2 base station equipment using a
standard IBM (or compatible) PC.
The kit comprises the following items:
PGM800Win programming software user's manual
PGM800Win Windows based programming software on CD
T800-01-0002 programming cable.
T800-01-0001
The T800-01-0001 kit is the same as the T800-01-0000 kit described above, but with the
addition of the T800-01-0004 module programming interface.
T800-01-0002
The T800-01-0002 programming cable connects the PC directly to the programming
socket on the T800 SL2 rack frame speaker panel or backplane PCB, thus enabling T800
SL2 modules to be read or programmed while in the rack frame. It can also connect to
the programming socket on the T800-01-0004 programming module interface if the
module is to be read or programmed while out of the rack frame.
T800-01-0003
The T800-01-0003 programming kit contains a T800-01-0002 programming cable and a
T800-01-0004 programming module interface.
T800-01-0004
The T800-01-0004 programming module interface is designed to allow a PC to connect
directly to a T800 SL2 module. It comprises a small PCB on which is mounted a D-range
socket, a programming socket, a Micromatch socket and a DC input connector.
The T800-01-0004 plugs directly into D-range 1 or D-range 2 (selected by a switch on the
PCB), or into SK805 in the microcontroller compartment via the supplied ribbon cable
loom, and is then connected to the PC with a T800-01-0002 programming cable.
Refer to the T800 Ancillary Equipment Service Manual for more information.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
H1.1.2
T800 Ancillary Equipment
1.2
General Ancillaries
M8SL2-00-002-812
T800-09-0001 RF Coaxial Relay
The T800-09-0001 is an RF coaxial relay assembly fitted with three female N-type connectors, and comes complete with a mounting bracket and two coaxial cables terminated in male N-type connectors. It can be used, for example, in base station
applications where the receiver and transmitter share the same antenna, in which case it
can be driven by the T800 SL2 transmitter relay driver (refer to Section 2.4 in Part G for
more information).
T800-01-0010 Calibration Test Unit
The T800-01-0010 provides all inputs and outputs necessary to carry out the full tuning
and adjustment procedure for T800 Series I and II receivers, exciters and transmitters. It
provides a convenient method of connecting test equipment, including a PC and power
supply, to a T800 Series I or II module (via D-range 1) without the need to construct custom wiring looms.
The T800-01-0010 also has a built-in speaker, a switch for selecting Series I or II modules,
and uses standard BNC and “banana plug” sockets.
T800-03 Auxiliary D-Range
The T800-03 is an additional D-range kit comprising one D-range plug assembly and
two locating pins, nuts and washers. Although originally a T800 Series I ancillary, it can
be used in T800 SL2 products for special applications requiring custom internal wiring.
T800-03-0000 Auxiliary D-Range
The T800-03-0000 is an additional D-range kit (normally fitted as D-range 2) comprising
one D-range plug assembly complete with connecting loom and mounting screws. The
ribbon cable loom connects the D-range PCB to the Micromatch socket (SK805) in the
microcontroller compartment. Typical uses of the T800-03-0000 are in paging applications and where external channel control is required. Refer to Figure 1.4 in Part G for the
T800-03-0000 pin connections.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
T800 Ancillary Equipment
H1.3
T800-04-0000 RSSI
The T800-04 RSSI option PCB plugs directly into the main PCB (support circuitry being
fitted as standard). It is fitted to the T855, T875 and T885 whenever receiver signal
strength monitoring is required, e.g. trunking or voting. Its function is to provide a DC
voltage proportional to the signal level at the receiver input.
T800-10-0000 Channel Select PCB
The T800-10-0000 is a small PCB that plugs into the Micromatch connector (SK805) in
the microcontroller compartment of a T800 SL2 receiver, exciter or transmitter. It is fitted
with an eight-switch DIP switch which allows the manual selection of any one of the
channels already programmed into the module by PGM800Win. The T800-10-0000 is
also fitted with a Micromatch socket to provide access to SK805 for programming purposes.
T800-80-0000 Local Microphone
A 600Ω microphone complete with 300mm cord terminated in a ¼” stereo plug for use
with the T854.
T800-80-0001 T803 Microphone
A 600Ω microphone complete with 300mm cord terminated with a RJ11connector for
use with the T803.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
H1.1.4
T800 Ancillary Equipment
1.3
Paging
M8SL2-00-002-812
T800-30-0000 and T800-30-0002 DFSK Modulators
The T800-30-0000 (formerly T800-30) and T800-30-0002 (formerly T800-35) are DFSK
modulators for T800 SL2 transmitters, suitable for POCSAG or similar paging data formats. Analogue transmissions (e.g. tone or speech) are still possible by disabling the
data path via a control line. 512 or 1200 baud data rates are link selectable. The
T800-30-0002 is adapted for use with an external reference oscillator for simulcast transmission. The T800-30-0000 and T800-30-0002 are not designed for use with 66 to 88MHz
equipment.
T800-32-0000 and T800-32-0010 DFSK Modulators
The T800-32-0000 and T800-32-0010 are DFSK modulator PCBs which can be fitted to
T800 SL2 transmitters to enable them to function as low-speed paging transmitters.
These new PCBs have been specifically designed for Series II transmitters and are much
easier to fit into the latest design transmitters.
Both PCBs are suitable for POCSAG or similar paging data formats, but are not
designed for analogue transmissions (e.g. tone or speech). The T800-32-0010 is adapted
for use with an external reference oscillator for simulcast transmission. The
T800-32-0000 and T800-32-0010 are not designed for use with 66 to 88MHz equipment.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
M8SL2-00-002-812
1.4
T800 Ancillary Equipment
H1.5
External Frequency Reference
T800-06-0000 External Frequency Reference Kit
The T800-06-0000 kit provides an additional D-range plug/PCB assembly which incorporates a miniature RF connector to carry an externally generated 12.8MHz reference
signal into a T800 SL2 module. This enables the use of very high stability external reference oscillators for special applications.
The D-range PCB is also fitted with a Micromatch socket which can be connected to
SK805 in the microcontroller section via the supplied loom to provide access to the
channel change lines.
The kit comes complete with fitting instructions and all installation hardware.
T800-06-0001 External Frequency Reference Kit
The T800-06-0001 is the same as the T800-06-0000 kit with the addition of a special coax
cable for external frequency reference input. One end of this coax is terminated with a
miniature RF connector which fits into the D-range socket in an appropriate backplane
PCB to connect to a T800 SL2 module fitted with a T800-06-0000 kit. The other end is terminated with a BNC connector which can be mounted on the rack frame.
T801-00 Frequency Reference Module
The T801-00 frequency reference module provides a high stability frequency source to
which the synthesiser within a T800 SL2 base station can be locked. The master standard
within the T801-00 is primarily intended to be rubidium, although high quality ovenised crystal oscillators can also be used in applications where more frequent readjustment of frequency is acceptable. The T801-00 converts the output frequency from its
master standard to the 12.8MHz required by the T800 SL2 base station.
Refer to M801-00.
T801-10 OCXO Module
The T801-10 OCXO module provides a high stability frequency source to which the synthesiser within a T800 SL2 base station can be locked. This will provide T800 SL2 transmitters with the frequency stability required for simulcast transmission. The master
standard within the T801-10 is a high quality ovenised crystal oscillator (OCXO). Three
outputs are provided on the rear panel, which allows up to three T800 SL2 transmitters
to be referenced to the source oscillator.
Refer to M801-10.
© Copyright Tait Electronics Limited August 2004. All rights reserved.
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