Tait TEL0025 Base Station Transmitter User Manual 8c500 a4 bk
Tait Limited Base Station Transmitter 8c500 a4 bk
Tait >
Descriptions Diagrams Info
2
M850-00
31/09/98 Copyright TEL
T800
T800
Head Office
New Zealand
Tait Electronics Ltd
558 Wairakei Road
P.O. Box 1645
Christchurch
New Zealand
Phone: 64 3 358-3399
Fax: 64 3 358-3903
Radio Systems Division
535 Wairakei Road
P.O. Box 1645
Christchurch
New Zealand
Phone: 64 3 358-1069
Fax: 64 3 358-6486
Australia
Tait Electronics (Aust) Pty Ltd
186 Granite Street
Geebung
Queensland 4034
P. O. Box 67 9
Virginia
Queensland 4014
Australia
Phone: 61 7 3865-7799
Toll Free: 1800 077-112
Fax: 61 7 3865-7990
Beijing
Tait Mobile Radio (HK) Ltd
Beijing Representative Office
Room 812, Tower A
Beijing Bright China
Chang An Building
No. 7 Jianguomennei Dai Jei
Dongcheng District
Beijing
China 100005
Canada
Tait Mobile Radio Inc.
Unit 5, 158 Anderson Avenue
Markham
Ontario L6E1A9
Canada
Phone: 1 905 472-1100
Toll Free: 1 800 890-8248
Fax: 1 905 472-5300
France
Tait France Sarl
2 Avenue de la Cristallerie
92 316 Sèvres, Cedex
France
Phone: 33 1 41 14-05-50
Fax: 33 1 41 14-05-55
Germany
Tait Mobilfunk GmbH
Willstätterstraße 50
D-90449 Nürnberg 60
Germany
Phone: 49 911 96 746-0
Fax: 49 911 96 746-79
Hong Kong
Tait Mobile Radio (HK) Ltd
Unit 2216
North Tower
Concordia Plaza
No. 1, Science Museum Road
Tsim Sha Tsui East
Kowloon
Hong Kong
Phone: 852 2369-3040
Fax: 852 2369-3009
New Zealand
Tait Communications Ltd
Unit 4, 75 Blenheim Road
P. O . B o x 11 8 5
Christchurch
Phone: 64 3 348-3301
Fax: 64 3 343-0558
Singapore
Tait Electronics (Far East) Pte Ltd
4 Leng Kee Road
SIS Building #05-11A
Singapore 159088
Phone: 65 471-2688
Fax: 65 479-7778
Ta i w a n
Tait Mobile Radio (Taiwan) Ltd
1104, No. 142 Chung Hsiao E. Rd
Sec. 4
Taipei
Taiwan
Phone: 886 2 2731-1290
Fax: 886 2 2711-6351
Thailand
Tait Mobile Radio Ltd
14/1 Suwan Tower
Ground Floor
Soi Saladaeng 1
North Sathorn Road
Bangrak
Bangkok 10500
Thailand
Phone: 662 267-6290-2
Fax: 662 267-6293
United Kingdom
Tait Europe Ltd
Ermine Business Park
Ermine Road
Huntingdon
Cambridgeshire PE18 6YA
United Kingdom
Phone: 44 1480-52255
Fax: 44 1480-411996
USA
Tait Electronics (USA) Inc.
9434 Old Katy Road
Suite 110
Houston
Texas 77055
USA
Phone: 1 713 984-8684
Toll Free: 1 800 222-1255
Fax: 1 713 468-6944
M850-00
3
Copyright TEL 31/09/98
About This Manual
Scope This manual contains general, technical and servicing informa-
tion on T850 Series II 25W, 50W and 100W base stations which
comprise the following equipment:
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.
Revision Packages Revision packages will normally be published to coincide with
the release of information on a new PCB, and may also contain
additions or corrections pertaining to other parts of the manual.
You may order as many packages as you require from your local
Tait Dealer or Customer Service Organisation. Revision pack-
ages are supplied ready-punched for inclusion in your manual.
Revision Control Each page in this manual has a date of issue. This is to comply
with various Quality Standards, but will also serve to identify
which pages have been updated and when. Each page and its
publication date is listed in the "List of Effective Pages", and a
new list containing any new/revised pages and their publica-
tion dates will be sent with each revision package.
Any portion of text that has been changed is marked by a verti-
cal line (as shown at left) in the outer margin of the page. Where
the removal of an entire paragraph means there is no text left to
mark, an arrow (as shown at left) will appear in the outer mar-
gin. The number beside the arrow will indicate how many para-
graphs have been deleted.
The manual issue and revision status are indicated by the last
three digits of the manual product code. These digits start at 200
and will increment through 201, 202, 203, etc., as revision pack-
ages are published, e.g:
Thus, issue 203 indicates the third revision to issue 2 and means
that three packages should have been added to the manual. The
25W base station T855 receiver
T856 25W transmitter
50W base station T855 receiver
T857 exciter
T858 50W power amplifier
100W base station T855 receiver
T857 exciter
T859 100W power amplifier
2
2 0 3
issue status revision status
4
M850-00
31/09/98 Copyright TEL
issue digit will only change if there is a major product revision,
or if the number of revision packages to be included means that
the manual becomes difficult to use, at which point a new issue
manual will be published in a new ring binder.
PCB Information PCB information is provided for all current issue PCBs, as well
as all previous issue PCBs manufactured in production quanti-
ties, 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 Customer
Support, Radio Systems Division, Tait Electronics Ltd, Christch-
urch, 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).
Publication Information
T850 Series II Service Manual
Issue 200 published October 1998 Product Code M850-00-200
M850-00
5
Copyright TEL 31/09/98
Table Of Contents
This manual is divided into nine parts as listed below, with each part being further sub-
divided 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 T856 Transmitter & T857 Exciter
D T858 & T859 Power Amplifiers
E T850 VCO PCB Information
F Installation
G System Configurations
H T800 Ancillary Equipment
I Using T850 Series II Equipment In A Series I Rack Frame
6
M850-00
31/09/98 Copyright TEL
List Of Effective Pages
The total number of pages in this Manual is 440, as listed below.
Page Issue Date Page Issue Date
131/09/98
231/09/98
331/09/98
431/09/98
531/09/98
631/09/98
731/09/98
831/09/98
931/09/98
10 31/09/98
11 31/09/98
12 31/09/98 (blank)
Part A
I31/09/98
II 31/09/98 (blank)
1.1 31/09/98
1.2 31/09/98
2.1 31/09/98
2.2 31/09/98
2.3 31/09/98
2.4 31/09/98 (blank)
3.1 31/09/98
3.2 31/09/98
4.1 31/09/98
4.2 31/09/98
Part B
I31/09/98
II 31/09/98 (blank)
1.1 31/09/98
1.2 31/09/98 (blank)
1.3 31/09/98 (fold-out)
1.4 31/09/98 (fold-out)
1.5 31/09/98
1.6 31/09/98
1.7 31/09/98
1.8 31/09/98
1.9 31/09/98
1.10 31/09/98
1.11 31/09/98
1.12 31/09/98
1.13 31/09/98
1.14 31/09/98 (blank)
2.1 31/09/98
2.2 31/09/98 (blank)
2.3 31/09/98
2.4 31/09/98
2.5 31/09/98
2.6 31/09/98
2.7 31/09/98
2.8 31/09/98
2.9 31/09/98
2.10 31/09/98
2.11 31/09/98
2.12 31/09/98
3.1 31/09/98
3.2 31/09/98
3.3 31/09/98
3.4 31/09/98
3.5 31/09/98
3.6 31/09/98
3.7 31/09/98
3.8 31/09/98
3.9 31/09/98
3.10 31/09/98
3.11 31/09/98
3.12 31/09/98
3.13 31/09/98
3.14 31/09/98
4.1 31/09/98
4.2 31/09/98 (blank)
4.3 31/09/98
4.4 31/09/98
4.5 31/09/98
4.6 31/09/98
4.7 31/09/98
4.8 31/09/98 (blank)
4.9 31/09/98 (fold-out)
4.10 31/09/98 (fold-out) (blank)
M850-00
7
Copyright TEL 31/09/98
Page Issue Date Page Issue Date
5.1 31/09/98
5.2 31/09/98
5.3 31/09/98
5.4 31/09/98
5.5 31/09/98
5.6 31/09/98
5.7 31/09/98
5.8 31/09/98
5.9 31/09/98
5.10 31/09/98
5.11 31/09/98
5.12 31/09/98
5.13 31/09/98
5.14 31/09/98
5.15 31/09/98
5.16 31/09/98
5.17 31/09/98
5.18 31/09/98
5.19 31/09/98
5.20 31/09/98 (blank)
6.1.1 31/09/98
6.1.2 31/09/98 (blank)
6.1.3 31/09/98
6.1.4 31/09/98
6.1.5 31/09/98
6.1.6 31/09/98
6.2.1 31/09/98
6.2.2 31/09/98 (blank)
6.2.3 31/09/98
6.2.4 31/09/98
6.2.5 31/09/98
6.2.6 31/09/98
6.2.7 31/09/98 (fold-out)
6.2.8 31/09/98 (fold-out) (blank)
6.3.1 31/09/98
6.3.2 31/09/98 (blank)
6.3.3 31/09/98
6.3.4 31/09/98
6.3.5 31/09/98
6.3.6 31/09/98
6.3.7 31/09/98
6.3.8 31/09/98
6.3.9 31/09/98 (blank)
6.3.10 31/09/98
6.3.11 31/09/98 (fold-out)
6.3.12 31/09/98 (fold-out) (blank)
6.3.13 31/09/98
6.3.14 31/09/98
6.3.15 31/09/98
6.3.16 31/09/98 (blank)
6.3.17 31/09/98 (fold-out)
6.3.18 31/09/98 (fold-out)
6.3.19 31/09/98 (fold-out)
6.3.20 31/09/98 (fold-out)
6.3.21 31/09/98 (fold-out)
6.3.22 31/09/98 (fold-out)
6.3.23 31/09/98 (fold-out)
6.3.24 31/09/98 (fold-out)
6.3.25 31/09/98 (fold-out)
6.3.26 31/09/98 (fold-out)
6.3.27 31/09/98 (fold-out)
6.3.28 31/09/98 (fold-out)
6.3.29 31/09/98 (fold-out)
6.3.30 31/09/98 (fold-out) (blank)
Part C
I31/09/98
II 31/09/98 (blank)
1.1 31/09/98
1.2 31/09/98 (blank)
1.3 31/09/98 (fold-out)
1.4 31/09/98 (fold-out)
1.5 31/09/98 (fold-out)
1.6 31/09/98 (fold-out)
1.7 31/09/98
1.8 31/09/98
1.9 31/09/98
1.10 31/09/98
1.11 31/09/98
1.12 31/09/98
1.13 31/09/98
1.14 31/09/98
1.15 31/09/98
1.16 31/09/98 (blank)
2.1 31/09/98
2.2 31/09/98
2.3 31/09/98
2.4 31/09/98
2.5 31/09/98
2.6 31/09/98
2.7 31/09/98
2.8 31/09/98
2.9 31/09/98
2.10 31/09/98
2.11 31/09/98
2.12 31/09/98
2.13 31/09/98
8
M850-00
31/09/98 Copyright TEL
Page Issue Date Page Issue Date
2.14 31/09/98 (blank)
3.1 31/09/98
3.2 31/09/98
3.3 31/09/98
3.4 31/09/98
3.5 31/09/98
3.6 31/09/98
3.7 31/09/98
3.8 31/09/98
3.9 31/09/98
3.10 31/09/98
3.11 31/09/98
3.12 31/09/98
3.13 31/09/98
3.14 31/09/98
4.1 31/09/98
4.2 31/09/98 (blank)
4.3 31/09/98
4.4 31/09/98
4.5 31/09/98
4.6 31/09/98
4.7 31/09/98
4.8 31/09/98 (blank)
4.9 31/09/98 (fold-out)
4.10 31/09/98 (fold-out) (blank)
4.11 31/09/98 (fold-out)
4.12 31/09/98 (fold-out) (blank)
5.1 31/09/98
5.2 31/09/98
5.3 31/09/98
5.4 31/09/98
5.5 31/09/98
5.6 31/09/98
5.7 31/09/98
5.8 31/09/98
5.9 31/09/98
5.10 31/09/98
5.11 31/09/98
5.12 31/09/98
5.13 31/09/98
5.14 31/09/98
5.15 31/09/98
5.16 31/09/98
5.17 31/09/98
5.18 31/09/98
5.19 31/09/98
5.20 31/09/98
6.1.1 31/09/98
6.1.2 31/09/98 (blank)
6.1.3 31/09/98
6.1.4 31/09/98
6.1.5 31/09/98
6.1.6 31/09/98
6.2.1 31/09/98
6.2.2 31/09/98 (blank)
6.2.3 31/09/98
6.2.4 31/09/98
6.2.5 31/09/98
6.2.6 31/09/98
6.2.7 31/09/98
6.2.8 31/09/98
6.2.9 31/09/98
6.2.10 31/09/98
6.2.11 31/09/98 (fold-out)
6.2.12 31/09/98 (fold-out) (blank)
6.2.13 31/09/98
6.2.14 31/09/98
6.2.15 31/09/98
6.2.16 31/09/98
6.2.17 31/09/98 (fold-out)
6.2.18 31/09/98 (fold-out)
6.2.19 31/09/98 (fold-out)
6.2.20 31/09/98 (fold-out)
6.2.21 31/09/98 (fold-out)
6.2.22 31/09/98 (fold-out)
6.2.23 31/09/98 (fold-out)
6.2.24 31/09/98 (fold-out)
6.2.25 31/09/98 (fold-out)
6.2.26 31/09/98 (fold-out)
6.2.27 31/09/98 (fold-out)
6.2.28 31/09/98 (fold-out)
6.2.29 31/09/98 (fold-out)
6.2.30 31/09/98 (fold-out) (blank)
6.3.1 31/09/98
6.3.2 31/09/98 (blank)
6.3.3 31/09/98
6.3.4 31/09/98
6.3.5 31/09/98
6.3.6 31/09/98
6.3.7 31/09/98
6.3.8 31/09/98
6.3.9 31/09/98 (fold-out)
6.3.10 31/09/98 (fold-out) (blank)
6.3.11 31/09/98
6.3.12 31/09/98
6.3.13 31/09/98
6.3.14 31/09/98 (blank)
6.3.15 31/09/98 (fold-out)
M850-00
9
Copyright TEL 31/09/98
Page Issue Date Page Issue Date
6.3.16 31/09/98 (fold-out)
6.3.17 31/09/98 (fold-out)
6.3.18 31/09/98 (fold-out)
6.3.19 31/09/98 (fold-out)
6.3.20 31/09/98 (fold-out)
6.3.21 31/09/98 (fold-out)
6.3.22 31/09/98 (fold-out)
6.3.23 31/09/98 (fold-out)
6.3.24 31/09/98 (fold-out)
6.3.25 31/09/98 (fold-out)
6.3.26 31/09/98 (fold-out)
6.3.27 31/09/98 (fold-out)
6.3.28 31/09/98 (fold-out) (blank)
Part D
I 31/09/98
II 31/09/98 (blank)
1.1 31/09/98
1.2 31/09/98 (blank)
1.3 31/09/98 (fold-out)
1.4 31/09/98 (fold-out)
1.5 31/09/98 (fold-out)
1.6 31/09/98 (fold-out)
1.7 31/09/98
1.8 31/09/98
1.9 31/09/98
1.10 31/09/98
1.11 31/09/98
1.12 31/09/98
2.1 31/09/98
2.2 31/09/98 (blank)
2.3 31/09/98
2.4 31/09/98
2.5 31/09/98
2.6 31/09/98
2.7 31/09/98
2.8 31/09/98
3.1 31/09/98
3.2 31/09/98 (blank)
3.3 31/09/98
3.4 31/09/98
3.5 31/09/98
3.6 31/09/98
3.7 31/09/98
3.8 31/09/98
3.9 31/09/98
3.10 31/09/98 (blank)
3.11 31/09/98 (fold-out)
3.12 31/09/98 (fold-out) (blank)
3.13 31/09/98 (fold-out)
3.14 31/09/98 (fold-out) (blank)
4.1 31/09/98
4.2 31/09/98 (blank)
4.3 31/09/98
4.4 31/09/98
4.5 31/09/98 (fold-out)
4.6 31/09/98 (fold-out) (blank)
4.7 31/09/98
4.8 31/09/98
4.9 31/09/98
4.10 31/09/98
4.11 31/09/98
4.12 31/09/98
4.13 31/09/98
4.14 31/09/98
4.15 31/09/98
4.16 31/09/98
5.1.1 31/09/98
5.1.2 31/09/98 (blank)
5.1.3 31/09/98
5.1.4 31/09/98
5.1.5 31/09/98
5.1.6 31/09/98
5.2.1 31/09/98
5.2.2 31/09/98 (blank)
5.2.3 31/09/98
5.2.4 31/09/98
5.2.5 31/09/98
5.2.6 31/09/98
5.2.7 31/09/98 (blank)
5.2.8 31/09/98
5.2.9 31/09/98 (fold-out)
5.2.10 31/09/98 (fold-out) (blank)
5.2.11 31/09/98
5.2.12 31/09/98 (blank)
5.2.13 31/09/98 (fold-out)
5.2.14 31/09/98 (fold-out)
5.2.15 31/09/98 (fold-out)
5.2.16 31/09/98 (fold-out)
5.3.1 31/09/98
5.3.2 31/09/98 (blank)
5.3.3 31/09/98
5.3.4 31/09/98
5.3.5 31/09/98
5.3.6 31/09/98
10
M850-00
31/09/98 Copyright TEL
Page Issue Date Page Issue Date
5.3.7 31/09/98 (blank)
5.3.8 31/09/98
5.3.9 31/09/98 (fold-out)
5.3.10 31/09/98 (fold-out) (blank)
5.3.11 31/09/98
5.3.12 31/09/98
5.3.13 31/09/98 (fold-out)
5.3.14 31/09/98 (fold-out)
5.3.15 31/09/98 (fold-out)
5.3.16 31/09/98 (fold-out)
Part E
I31/09/98
II 31/09/98 (blank)
1.1 31/09/98
1.2 31/09/98
2.1 31/09/98
2.2 31/09/98 (blank)
2.3 31/09/98
2.4 31/09/98
2.5 31/09/98
2.6 31/09/98
2.7 31/09/98 (fold-out)
2.8 31/09/98 (fold-out) (blank)
Part F
I31/09/98
II 31/09/98
1.1 31/09/98 (fold-out)
1.2 31/09/98 (fold-out)
2.1 31/09/98 (fold-out)
2.2 31/09/98 (fold-out)
3.1 31/09/98 (fold-out)
3.2 31/09/98 (fold-out)
Part G
I31/09/98
II 31/09/98
1.1 31/09/98
1.2 31/09/98
1.3 31/09/98
1.4 31/09/98 (blank)
2.1 31/09/98
2.2 31/09/98
2.3 31/09/98
2.4 31/09/98 (blank)
3.1 31/09/98
3.2 31/09/98 (blank)
4.1 31/09/98
4.2 31/09/98
5.1 31/09/98
5.2 31/09/98
Part H
I31/09/98
II 31/09/98 (blank)
131/09/98
231/09/98
331/09/98
431/09/98
531/09/98
631/09/98
731/09/98
831/09/98
931/09/98
10 31/09/98
11 31/09/98
12 31/09/98
13 31/09/98
14 31/09/98
Part I
I31/09/98
II 31/09/98 (blank)
1.1 31/09/98
1.2 31/09/98 (blank)
2.1 31/09/98
2.2 31/09/98
2.3 31/09/98
2.4 31/09/98
2.5 31/09/98
M850-00
AI
Copyright TEL 31/09/98
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, and a brief history of
PGM800Win programming software.
Section Title Page
1
1.1
1.2
1.3
1.4
General
Additional Technical Information
Caution: CMOS Devices
Caution: Aerial Load
Caution: Beryllium Oxide & Power Transistors
1.1
1.1
1.1
1.2
1.2
2
2.1
2.2
2.3
2.3.1
2.3.2
2.4
Mechanical
Torx Recess Head Screws
Pozidriv & Philips Recess Head Screws
Disassembly/Reassembly
Receivers/Exciters/Transmitters
Power Amplifiers
Cover Screw Torques
2.1
2.1
2.2
2.3
2.3
2.3
2.3
3
3.1
3.1.1
3.1.2
3.2
3.3
Component Replacement
Leaded Components
Desoldering Iron Method
Component Cutting Method
Surface Mount Devices
Cased Mica Capacitors
3.1
3.1
3.1
3.1
3.2
3.2
4
4.1
4.2
Software History
PGM800Win V1.0
PGM800Win V2.00
4.1
4.1
4.1
Figure Title Page
1.1
1.2
2.1
2.2
Typical Product Code & Serial Number Labels
Typical Anti-static Bench Set-up
Torx Screw Identification
Pozidriv & Philips Screw & Screwdriver Identification
1.1
1.2
2.1
2.2
M850-00
General
A1.1
Copyright TEL 31/09/98
1 General
1.1 Additional Technical Information
If you have any questions about this manual or the equipment it describes, please con-
tact your nearest Tait Dealer or Customer Service Organisation. If necessary, you can get
additional technical help from Customer Support, Radio Systems Division, Tait Elec-
tronics Ltd, Christchurch, New Zealand (full contact details are on page 2).
When requesting information, please quote either the manual product code (e.g.
M850-00-200), or the equipment product code 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 & 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 CMOS Devices which are susceptible to damage from static
charges. Care when handling these devices is essential. For correct handling proce-
dures refer to the manufacturers' data books, e.g. Philips data books covering CMOS
devices, or Motorola CMOS data books, Section 5 'Handling', etc.
An anti-static bench kit (refer to Figure 1.2) is available from Tait Electronics Ltd under
the following product codes:
• KS0001 - 1 conductive rubber bench mat
- 1 earth lead to connect the mat to ground
• KS0004 - 1 wrist strap.
this area used for regional
Type Approval information
product code
serial number
T835-10-0000 Rev 1
900000
Tait Electronics Limited
Made in New Zealand
T838-10-0000
Rev 1
900000
Tait Electronics Limited
Made in New Zealand
A1.2
General
M850-00
31/09/98 Copyright TEL
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 & Power Transistors
The RF power transistors in current use all contain some beryllium oxide. This sub-
stance, 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.
to building earth
(not mains earth)
conductive
wrist strap conductive rubber
bench mat
M850-00
Mechanical
A2.1
Copyright TEL 31/09/98
2 Mechanical
2.1 Torx Recess Head Screws
Torx recess head screws are becoming the standard screw head type in all T800 Series II
equipment, with Pozidriv and Philips recess head screws being used in fewer applica-
tions.
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 - T10
M4 screws - 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).
Figure 2.1 Torx Screw Identification
"star" shaped recess with
six internal notches
A2.2
Mechanical
M850-00
31/09/98 Copyright TEL
2.2 Pozidriv & Philips Recess Head Screws
Pozidriv and Philips recess head screws will continue to be used in T800 Series II equip-
ment 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).
Figure 2.2 Pozidriv & Philips Screw & Screwdriver Identification
driving flutes with
parallel sides
driving flutes with
tapered sides
Pozidriv Philips
internal notches
"star" markings
between slots
no special markings
slots with parallel sides
slots with tapered sides
ridges between
driving flutes
M850-00
Mechanical
A2.3
Copyright TEL 31/09/98
2.3 Disassembly/Reassembly
2.3.1 Receivers/Exciters/Transmitters
To carry out alignment or change option links, you need to remove only the top cover,
i.e. the one adjacent to the front panel handle and 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.
2.3.2 Power Amplifiers
You should carry out the tuning and power output level setting procedures with the
cover on.
2.4 Cover Screw Torques
Receivers/Exciters/Transmitters .. 1.36Nm/12lb-in.
Power Amplifiers .. 0.9Nm/8lb-in.
M850-00
Component Replacement
A3.1
Copyright TEL 31/09/98
3 Component Replacement
3.1 Leaded Components
Whenever you are doing any work on the PCB that involves removing or fitting compo-
nents, you must take care not to damage the copper tracks. The two satisfactory meth-
ods 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 circu-
lar motion.
Start the suction and continue the movement until 3 or 4 circles have been com-
pleted.
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 sol-
dering iron on the tip of the desoldering iron (this may require some addi-
tional 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.
A3.2
Component Replacement
M850-00
31/09/98 Copyright TEL
3.2 Surface Mount Devices
Caution:
Surface mount devices (SMDs) require special storage, handling,
removal and replacement techniques. This equipment should be serv-
iced only by an approved Tait Dealer or Customer Service Organisa-
tion equipped with the necessary facilities. Repairs attempted with
incorrect equipment or by untrained personnel may result in perma-
nent damage. If in doubt, contact your nearest Tait Dealer or Customer
Service Organisation.
3.3 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 equiva-
lent.
M850-00
Software History
A4.1
Copyright TEL 31/09/98
4 Software History
28/06/96 PGM800Win Version 1.0
18/08/97 PGM800Win Version 2.00
4.1 PGM800Win V1.0
PGM800Win V1.0 is different in concept from DOS versions of PGM800 in that it is Win-
dows1 based. It also includes many new and improved features over DOS versions of
PGM800.
The major changes are outlined below:
• The Windows environment makes data entry and editing significantly easier.
• PGM800Win includes several new radio models which are not programmable
with DOS versions of PGM800.
• Out of range frequencies will result in warning messages and will not be accepted
for entry into the standard library module. User defined modules can be created,
however, allowing variation from the standard library module.
• Channel numbers default to 0-127 to match the EPROM memory locations. How-
ever, the user can change this setting so that the channel numbers run from 1-128
to suit his/her particular needs.
Note:
The data files produced by BASEPROG V1.0 and all DOS versions of
PGM800 are still compatible with PGM800Win V1.0.
4.2 PGM800Win V2.00
PGM800Win V2.00 is an upgraded and expanded version of PGM800Win V1.0. It has
been developed specifically for T800 Series II base stations, but retains the ability to pro-
gram Series I equipment.
The major changes are outlined below:
• PGM800Win V2.0 will program T800 Series II base station modules via serial com-
munications.
• Deviation and reference modulation settings are written automatically to the
radio.
1. Windows is a registered trademark of the Microsoft Corporation.
A4.2
Software History
M850-00
31/09/98 Copyright TEL
• Extra information that is not stored in the radio (but which is still relevant to the
radio) can be saved to a file on disk (e.g. note field, auxiliary pin names, etc.).
Note:
The data files produced by BASEPROG V1.0, all DOS versions of PGM800,
and PGM800Win V1.0 are still compatible with PGM800Win V2.00.
M850-00
BI
Copyright TEL 31/09/98
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 & Adjustment
4 Functional Testing
5 Fault Finding
6 PCB Information
M850-00
T855 General Information
B1.1
Copyright TEL 31/09/98
1 T855 General Information
This section provides a brief description of the T855 receiver, along with detailed speci-
fications and a list of types available.
The following topics are covered in this section.
Section Title Page
1.1 Introduction 1.5
1.2
1.2.1
1.2.2
1.2.3
1.2.4
1.2.4.1
1.2.4.2
1.2.4.3
1.2.5
1.2.6
1.2.6.1
1.2.6.2
1.2.6.3
Specifications
Introduction
General
RF Section
Audio Section
General
CTCSS
Mute Operation
Microprocessor Controller
Test Standards
European Telecommunication Standard (ETS)
DTI CEPT Recommendation T/R-24-01
Telecommunications Industry Association
1.6
1.6
1.7
1.7
1.9
1.9
1.9
1.10
1.10
1.10
1.10
1.11
1.11
1.3 Product Codes 1.12
1.4 Standard Product Range 1.13
Figure Title Page
1.1
1.2
T855 Main Circuit Block Identification
T855 Front Panel Controls
1.4
1.4
M850-00
T855 General Information
B1.5
Copyright TEL 31/09/98
1.1 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 out-
put. 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 600 ohm 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.
The T855 has a width of 60mm and occupies a single space in a Tait rack frame, which
has the ability to accommodate up to seven standard modules.
1. Although capable of operating over the 400-530MHz frequency range, the T855 has a
5MHz switching range (see Section 1.2.3 and Section 3.1).
B1.6
T855 General Information
M850-00
31/09/98 Copyright TEL
1.2 Specifications
1.2.1 Introduction
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 (13.8V DC).
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 parame-
ters for which performance according to the CEPT specification is given. Refer to Sec-
tion 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.
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.
Channel Spacing Modulation
100% Deviation Receiver
IF Bandwidth
Wide Bandwidth 25kHz ±5.0kHz 15.0kHz
Mid Bandwidth 20kHz ±4.0kHz 12.0kHz
Narrow Bandwidth 12.5kHz ±2.5kHz 7.5kHz
Link PL210a
a. The letters in this column refer to the identification letters screen printed onto the PCB be-
side each set of links.
Link PL220a
De-emphasised Audio 1-2 (A-B) 2-3 (E-F)
Flat Audio 2-3 (B-C) 1-2 (D-E)
M850-00
T855 General Information
B1.7
Copyright TEL 31/09/98
1.2.2 General
Number Of Channels .. 128 (standard)1
Supply Voltage:
Operating Voltage .. 10.8 to 16V DC
Standard Test Voltage .. 13.8V DC
Polarity .. negative earth only
Polarity Protection .. diode
Supply Current:
Standby .. 350mA
Full Audio .. 750mA
Operating Temperature Range .. -20°C to +60°C
Dimensions:
Height .. 191mm
Width .. 60mm
Length .. 324mm
Weight .. 2.13kg
1.2.3 RF Section
Frequency Range .. 400-530MHz
Type .. dual conversion superheterodyne
Frequency Increment .. 5 or 6.25kHz
Switching Range .. 5MHz (i.e. ±2.5MHz from the centre
frequency)
Input Impedance .. 50 ohms
Frequency Stability .. ±1ppm, -20°C to +60°C
(see also Section 1.4)
Signal Strength Indicator .. -115dBm to -70dBm, 0 to 5V
(RSSI optional) at approx. 10dB/V
1. Additional channels may be factory programmed. Contact your nearest Tait Dealer or
Customer Service Organisation.
B1.8
T855 General Information
M850-00
31/09/98 Copyright TEL
IF Amplifiers:
Frequencies .. 45MHz and 455kHz
Bandwidths-
Narrow Bandwidth (NB) .. 7.5kHz
Mid Bandwidth (MB) .. 12kHz
Wide Bandwidth (WB) .. 15kHz
Sensitivity (De-emphasised Response):
Single Channel .. -117dBm
Bandspread (12dB Sinad) .. -115dBm (across switching range)
Sensitivity (Flat Response):
Single Channel .. -111dBm
Bandspread (12dB Sinad) .. -109dBm
Signal+Noise To Noise Ratio (Typical): De-emphasised Flat
RF Level -107dBm .. 30dB (WB) 20dB (WB)
25dB (NB) 15dB (NB)
RF Level -83dBm (CEPT) .. 54dB (MB) 49dB (MB)
50dB (NB) 45dB (NB)
RF Level -57dBm (EIA) .. 55dB (WB) 55dB (WB)
Selectivity:
Narrow Bandwidth (±12.5kHz) .. 83dB minimum, 85dB typical (CEPT)
Mid Bandwidth (±20kHz) .. 87dB minimum, 90dB typical (CEPT)
Wide Bandwidth (±25kHz) .. 87dB minimum, 90dB typical (CEPT)
Offset Selectivity (Canada only) .. 20dB
Spurious Response Attenuation .. 100dB
Intermodulation Response Attenuation:
Narrow Bandwidth .. 80dB CEPT (typical)
Mid Bandwidth .. 75dB CEPT
Wide Bandwidth .. 85dB EIA
Blocking .. 100dB
Co-channel Rejection .. 6dB
Amplitude Characteristic .. 3dB
Spurious Emissions:
Conducted .. -90dBm to 4GHz
Radiated .. -57dBm to 1GHz
-47dBm to 4GHz
M850-00
T855 General Information
B1.9
Copyright TEL 31/09/98
1.2.4 Audio Section
1.2.4.1 General
Outputs Available .. line and monitor
Frequency Response .. flat or de-emphasised (750µs)
(link selectable)
Flat Response:
Bandwidth .. 67 to 3400Hz
Response .. within +1, -2dB of output level
at 1kHz
De-emphasised Response:
Bandwidth .. 300 to 3400Hz
Response .. within +1, -3dB of a -6dB/octave
de-emphasis characteristic (ref. 1kHz)
Line Output:
Power .. adjustable to >+10dBm
Load Impedance .. 600 ohms
Distortion (@ -70dBm signal level): De-emphasised Flat
Wide Bandwidth .. ≤2% ≤2%
Mid & Narrow Bandwidth .. ≤2% ≤4%
1.2.4.2 CTCSS
Linkable High Pass Filter:
Bandwidth .. 350 to 3400Hz
Response .. within +1, -3dB of level at 1kHz
Hum And Noise .. 30dB min. at 250.3Hz
(1kHz at 60% system deviation 35dB typical (67 to 240Hz)
CTCSS at 10% system deviation)
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)
B1.10
T855 General Information
M850-00
31/09/98 Copyright TEL
1.2.4.3 Mute Operation
Systems Available .. noise mute and carrier mute
Noise Mute:
Operating Range .. 6-20dB sinad
Hysteresis .. 1.5 to 6dB
Threshold .. adjustable to -105dBm
Opening Time .. 20ms
Closing Time .. 50ms
Carrier Mute (Optional):
Operating Range .. -115 to -80dBm
Hysteresis .. 2 to 10dB
Opening Time .. 5ms
Closing Time .. 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 .. capable of sinking 2.25mA via 2k2Ω
Vds max. .. 5V
1.2.6 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 pri-
marily 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.
M850-00
T855 General Information
B1.11
Copyright TEL 31/09/98
ETS 300 279 February 1996
Radio equipment and systems; electromagnetic compatibility (EMC) standard for pri-
vate 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.
B1.12
T855 General Information
M850-00
31/09/98 Copyright TEL
1.3 Product Codes
The three groups of digits in the T850 Series II product code provide information about
the model, type and options fitted, according to the conventions described below.
The following explanation of T850 Series II product codes is not intended to suggest that
any combination of features is necessarily available in any one product. Consult your
nearest Tait Dealer or Customer Service Organisation for more information regarding
the availability of specific models, types and options.
Model
The Model group indicates the basic function of the product, as follows:
T85X-XX-XXXX T855 receiver
T856 25W transmitter
T857 exciter
T858 50W power amplifier
T859 100W power amplifier
Type
The Type group uses two digits to indicate the basic RF configuration of the product.
The first digit in the Type group designates the frequency range:
T85X-XX-XXXX ’1’ for 400-440MHz
’2’ for 440-480MHz
’3’ for 480-520MHz
The second digit in the Type group indicates the channel spacing:
T85X-XX-XXXX ’0’ for wide bandwidth (25kHz)
’3’ for mid bandwidth (20kHz)
’5’ for narrow bandwidth (12.5kHz)
Options
T85X-XX-XXXX The Options group uses four digits and/or letters to indicate
any options that may be fitted to the product. This includes
standard options and special options for specific customers.
’0000’ indicates a standard Tait product with no options fitted.
The large number of options precludes listing them here.
M850-00
T855 General Information
B1.13
Copyright TEL 31/09/98
1.4 Standard Product Range
The following table lists the range of standard T855 types (i.e. no options fitted) availa-
ble at the time this manual was published. Consult your nearest Tait Dealer or Cus-
tomer Service Organisation for more information.
You can identify the receiver 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 receiver type by checking the placement of an SMD resistor in the table that is screen
printed onto the PCB (refer to Section 6.1 for more details).
Frequency Range (MHz) 400-440
IF Bandwidth (kHz) 7.5 12 15
TCXO ±1ppm -20°C to +60°C •••
Receiver Type: T855- 15-0000 13-0000 10-0000
Frequency Range (MHz) 440-480
IF Bandwidth (kHz) 7.5 12 15
TCXO ±1ppm -20°C to +60°C •••
Receiver Type: T855- 25-0000 23-0000 20-0000
Frequency Range (MHz) 480-530
IF Bandwidth (kHz) 7.5 15
TCXO ±1ppm -20°C to +60°C ••
Receiver Type: T855- 35-0000 30-0000
M850-00
T855 Circuit Operation
B2.1
Copyright TEL 31/09/98
2 T855 Circuit Operation
This section provides a basic description of the circuit operation of the T855 receiver.
Note:
Unless otherwise specified, the term "PGM800Win" used in this and follow-
ing sections refers to version 2.00 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
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
2.2
2.3
2.4
2.5
2.6
2.7
T855 High Level Block Diagram
T855 Front End, IF and Mute Block Diagram
T855 Audio Processor Block Diagram
T855 Power Supply And Regulators Block Diagram
T855 Microcontroller Block Diagram
T855 Synthesiser Block Diagram
T855 RSSI Block Diagram (T800-04-0000 RSSI PCB)
2.3
2.4
2.7
2.8
2.9
2.10
2.12
M850-00
T855 Circuit Operation
B2.3
Copyright TEL 31/09/98
2.1 Introduction
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 Sec-
tion 6 for further detail.
45MHz
IF 455kHz
IF
Carrier
Mute
RSSI
Noise
Mute
Front
End
12.8MHz
Master
Oscillator
Audio
Processor
Mixer Mixer Limiter
FM
Detector
Synthesised
Local
Oscillator
Second
Local
Oscillator
Speaker
}
600Ω
Line
B2.4
T855 Circuit Operation
M850-00
31/09/98 Copyright TEL
2.2 Receiver Front End
(Refer to the front end, IF section and audio processor circuit diagrams (sheets 4, 3 and 2
respectively) in Section 6.3.)
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 400-530MHz) 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 approxi-
mately 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 50 ohm terminations for
ease of testing and fault finding. The overall gain from the antenna socket to the mixer
input is approximately 2dB.
t∆
Mixer
Comparator
RF In
400-530MHz
Harmonic
Filter Helical
Filter Helical
Filter
RF
Amp
Local Oscillator
(From Synthesiser)
Diplexer
Post
Mixer
Amp
4-Pole
Crystal
Filter IF
Amp
4dB Pad
45MHz
2-Pole
Crystal
Filter
45MHz
Mixer
(MC3361) Ceramic
Filter
IF
Amp
455kHz
2nd LO
44.545MHz
Active
Filter LF
Amp Diode
Detector
Smoothing
Filter
Gain
Adjust Mute
Adjust
Gating
Delays Comparator
Comparator
Mute
Adjust
Buffer
Amp
Rx Gate Out
(To Audio
Processor)
Audio Section
Link:
Low
Pass
Filter
Buffer
Amp
RSSI
Limiter
(MC3361)
FM
Detector
(MC3361)
RSSI Output
Voltage
(To D-Range
Connector)
Audio
(To Audio
Processor)
Carrier Mute
Noise Mute
M850-00
T855 Circuit Operation
B2.5
Copyright TEL 31/09/98
2.3 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 (nom-
inal). 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 50 ohms, 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 50 ohms 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 ampli-
fied using a high gain MOSFET amplifier (Q330), 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 1V p-p
for 60% system deviation.
B2.6
T855 Circuit Operation
M850-00
31/09/98 Copyright TEL
2.5 Noise Mute (Squelch)
(Refer to the audio processor and IF section circuit diagrams (sheets 2 and 3 respec-
tively) in Section 6.3 and Figure 2.2.)
The noise mute operates on the detected noise outside the audio bandwidth. An opera-
tional 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 & 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 out-
put can be separately enabled for test purposes by operating the front panel mute disa-
ble switch, SW201.
2.6 Carrier Mute
(Refer to the audio processor and IF section circuit diagrams (sheets 2 and 3 respec-
tively) in Section 6.3 and Figure 2.2.)
A high level carrier mute facility is also available. The RSSI (refer to Section 2.12) pro-
vides 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.
M850-00
T855 Circuit Operation
B2.7
Copyright TEL 31/09/98
2.7 Audio Processor
(Refer to the audio processor circuit diagram (sheet 2) in Section 6.3.)
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 & 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 sepa-
rate 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 Sec-
tion 3.5).
The signals are passed to audio drive amplifiers IC240 and IC260. Under muted condi-
tions 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 trans-
former to provide a balanced 2-wire or 4-wire, 600 ohm 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
Mute" switch (SW201) on the front panel opens the mute, allowing continuous monitor-
ing of the audio signal (on = audio muted; off = audio unmuted).
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.
From
IF Stage
Demodulated
Signal
(*IF Audio
Compensation
Circuit)
Driver Amp
Line Output
12V
Relay
Speech
Audio 1
Output Audio 2
Input
High Pass
Filter
Speaker
Mute
Line
Mute
Carrier
Mute
RSSI
(Optional)
Rx Disable
Timer
Noise
Mute
PL260
PL250
PL270
RSSI Output
Mute Relay
Gate Output
Rx Disable
(Optional Pad)
Mute Disable
Speaker Output
Line Monitor
12
1
2
2
1
3
1
5
2
2
3
3
4
1
PL240
PL230
Driver Amp
Flat/De-
emphasis
LPF
PL210
2
3
Flat/De-
emphasis
Amplifier
PL220
1
23
*IF
Comp
Monitor
Volume
Line
Level
B2.8
T855 Circuit Operation
M850-00
31/09/98 Copyright TEL
The audio can also be disabled using the "RX-DISABLE" inputs, pads 225 or 228, having
connected the "RX-DISABLE" link between pins 1 & 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 (refer to Section 1.4 in Part G).
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.)
Figure 2.4 T855 Power Supply And Regulators Block Diagram
The T855 is designed to operate off a 10.8-16V DC supply (13.8V nominal). A 5.3V regu-
lator (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.
A switching power supply, based on Q670 and Q660, runs off the 9V supply and pro-
vides 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).
LVI
LVI
5V
Reg
DC
Amp Switching
PS 5V Dig
Reg µP
Reset
13.8V
Nom. 5V 5V Dig9V 20V
13.8V Nom.
From Rear
D-Range 1
M850-00
T855 Circuit Operation
B2.9
Copyright TEL 31/09/98
2.9 Microcontroller
(Refer to the microcontroller circuit diagram (sheet 8) in Section 6.3.)
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) & 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.
Channel
Select
Port
Auxiliary
Output
Port
Microcontroller
12.8MHz
Clock
Microcontroller Cavity
Audio In
Speech
External
Serial
Port
EEPROM Synthesiser
CTCSS
Decoder
Converter
5V Reset
5V Digital
Regulator Watchdog Timer
& LVI
Watchdog
B2.10
T855 Circuit Operation
M850-00
31/09/98 Copyright TEL
2.10 Synthesised Local Oscillator
(Refer to the synthesiser circuit diagram (sheet 7) in Section 6.3 and the VCO circuit dia-
gram in Part E.)
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 volt-
age.
12.8MHz
Reference
Oscillator
Serial
Bus
/R
Reference
Divider Phase
Detector Charge
Pump Loop
Filter
VCO PCB
FREQUENCY SYNTHESISER IC
VCO Buffer Output
Buffer
+22dBm
L.O.
Clk
Data
En Controller Buffer
fin
fref
/N
Programmable
Divider
64/65
Prescaler
M850-00
T855 Circuit Operation
B2.11
Copyright TEL 31/09/98
2.11 VCO
(Refer to the VCO circuit diagram in Part E.)
The VCO transistor (Q1) operates in a common emitter, and uses a transmission line res-
onator (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 & D2) to facilitate tuning. The VCO output is coupled into a cascode
amplifier stage (Q2 & Q3) which supplies +10dBm (nominal) output. Further amplifica-
tion 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 synthe-
siser (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 either 355-395MHz, 395-435MHz or 435-485MHz
according to product type (refer to Section 1.4). The VCO is tuned to 45MHz below the
desired receive frequency (low side injection) to produce a 45MHz IF signal at the out-
put of the mixer.
B2.12
T855 Circuit Operation
M850-00
31/09/98 Copyright TEL
2.12 Received Signal Strength Indicator (RSSI)
(Refer to the T800-04-0000 RSSI PCB circuit diagram in Section 6.2 and the IF section cir-
cuit 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.
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 incom-
ing 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 logarith-
mic 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.
+V
Amp Detector Error Amp
Q1C Q1A &
Q1B
VDC
Variable
Gain Stage
Q1E
RSSI
Input
Temp Comp
NTC
DC Amp
(Gain= x33)
Temp
Comp
Q1D
DC Offset
(Ref)
RSSI Output
1V/10dB
M850-00
T855 Initial Tuning & Adjustment
B3.1
Copyright TEL 31/09/98
3 T855 Initial Tuning & Adjustment
Caution:
This equipment contains CMOS devices which are susceptible to dam-
age from static charges. Refer to Section 1.2 in Part A for more infor-
mation 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.
Note:
Unless otherwise specified, the term "PGM800Win" used in this and follow-
ing sections refers to version 2.00 and later of the software.
Refer to Figure 4.3 which shows the location of the main tuning and adjustment con-
trols. 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
3.4.1
3.4.2
3.4.3
3.4.4
3.4.4.1
3.4.4.2
3.4.5
3.4.6
3.4.6.1
3.4.6.2
3.4.6.3
3.4.7
Short Tuning Procedure
Introduction
Synthesiser Alignment
Front End Alignment
Mute Adjustment
Noise Mute
Carrier Level Mute
Line Amplifier Output
CTCSS
Decoder Operation
Opening Sinad
High Pass Filter
RSSI (If Fitted)
3.5
3.5
3.5
3.5
3.6
3.6
3.6
3.6
3.7
3.7
3.7
3.7
3.8
B3.2
T855 Initial Tuning & Adjustment
M850-00
31/09/98 Copyright TEL
3.5
3.5.1
3.5.2
Audio Processor Links
General
Audio Processor Linking Details For CTCSS
3.8
3.8
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
3.11.1
3.11.2
Audio Processor
Line Amplifier Output
Monitor Amplifier Output (Speaker Output)
3.13
3.13
3.13
3.12
3.12.1
3.12.2
3.12.3
CTCSS
Decoder Operation
Opening Sinad
High Pass Filter
3.13
3.13
3.13
3.14
3.13 RSSI 3.14
Figure Title Page
3.1
3.2
T855 Test Equipment Set-up For Short Tuning Procedure
T855 Test Equipment Set-up For Full Tuning & Adjustment
Procedure
3.4
3.4
Section Title Page
M850-00
T855 Initial Tuning & Adjustment
B3.3
Copyright TEL 31/09/98
3.1 Introduction
When you receive your T855 receiver it will be run up and working on a particular fre-
quency (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 an IBM PC. You can also use
PGM800Win to select the receiver’s current operating frequency (or "default channel").
If the receiver is installed in a rack frame, you can program it via the programming port
in the speaker 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 the
rack frame backplane PCB. Refer to Part C in the T800 Series Ancillary
Equipment Service Manual (M800-00-101 or later issue) or 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.
B3.4
T855 Initial Tuning & Adjustment
M850-00
31/09/98 Copyright TEL
3.3 Test Equipment Required
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
• audio voltmeter
• sinad meter
• oscilloscope
• distortion meter
• T800-01-0010 calibration test unit (optional)
•4Ω speaker (not needed if the calibration test unit is used)
Figure 3.1 T855 Test Equipment Set-up For Short Tuning Procedure
Figure 3.2 T855 Test Equipment Set-up For Full Tuning & Adjustment Procedure
or RF test set (optional)
not needed for short tuning procedure
Receiver
RF In
RF Signal
Generator
Audio Signal
Generator
PSU
+13.8V
-Ve
External
Modulation Sinad
Meter Audio
Voltmeter
Line
Line
T800
Calibration
Test Unit
PGM800Win
Figure 3.1 and Figure 3.2 show
typical test equipment set-ups
(with and without a T800-01-0010
calibration test unit).
Receiver
RF In
RF Signal
Generator
Audio Signal
Generator
PSU
+13.8V
-Ve
External
Modulation GND
Distortion
Meter Sinad
Meter Audio
Voltmeter Oscilloscope
Line
Line 600Ω
Speaker
Output
Probe
4ΩSpeaker
(Or 4ΩResistor)
CH1
CH2
GND
PGM800Win
Serial
Com
via module programming interface
(e.g. T800-01-0004)
M850-00
T855 Initial Tuning & Adjustment
B3.5
Copyright TEL 31/09/98
3.4 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 program-
ming kit (refer to Section 3.2).
Remove the top cover (nearest the handle).
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 meas-
ures 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 fre-
quency 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.
Inject a strong on-channel RF signal with ±3kHz deviation (±2.4kHz) [±1.5kHz] at
1kHz into the antenna socket and adjust the helical resonators #FL410 & #FL420 to
give best sinad.
B3.6
T855 Initial Tuning & Adjustment
M850-00
31/09/98 Copyright TEL
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 & 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) to close the mute (if necessary turn off the RF sig-
nal and then turn it on again).
Rotate RV310 anticlockwise until the mute just opens.
Adjust RV230 for the required opening sinad.
3.4.4.2 Carrier Level Mute
Connect pins 2 & 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) to close the mute (if necessary, momentarily turn off
the RF), then slowly adjust it 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.
M850-00
T855 Initial Tuning & Adjustment
B3.7
Copyright TEL 31/09/98
3.4.6 CTCSS
3.4.6.1 Decoder Operation
Program a CTCSS tone on the set channel using PGM800Win.
Set the RF signal generator output to -70dBm.
Modulate the generator with:
• a 1kHz tone at ±3kHz deviation (±2.4kHz) [±1.5kHz]
• 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 & 2 linked (G - H; high pass filter bypassed), check that the
sinad is less than 6dB.
Reset RV230.
3.4.6.3 High Pass Filter
Set the audio processor links as follows:
Reset the RF signal generator output to -70dBm and note the line level (measure-
ment A).
Reduce the 1kHz generator to zero output and measure the line level again (meas-
urement B).
Check that measurement B is at least 30dB below measurement A.
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
B3.8
T855 Initial Tuning & Adjustment
M850-00
31/09/98 Copyright TEL
3.4.7 RSSI (If Fitted)
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 -100dBm 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 [ ].
Plug Linka
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.
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
PL230* 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
PL240b
b. Refer to Section 3.5.2 for further details.
1 - 2
[2 - 3]
or
3 - 4
4 - 5
G - H
[H - J]
or
J - K
K - L
bypass high pass filter
300Hz high pass filter in circuit
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
M850-00
T855 Initial Tuning & Adjustment
B3.9
Copyright TEL 31/09/98
3.5.2 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.
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 & noise -55dB
• received CTCSS tone - tone and speech transmitted down 600 ohm line
+ speech to line output - audio bandwidth 10Hz to 3kHz
- hum & noise -45dB
• high pass filtered speech - 400Hz to 3kHz
+ internal CTCSS detection - hum & 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 600 ohm 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 disa-
bled by removing R808.
Note 2:
External CTCSS units can connect in series with the audio chain via
AUDIO-1 and AUDIO-2.
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
B3.10
T855 Initial Tuning & Adjustment
M850-00
31/09/98 Copyright TEL
3.6 Synthesiser Alignment
• 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 meas-
ures 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 fre-
quency 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.
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 cou-
ple 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.
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.
M850-00
T855 Initial Tuning & Adjustment
B3.11
Copyright TEL 31/09/98
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 4V p-p.
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, ensur-
ing that the 455kHz level (on the oscilloscope) does not fall significantly.
Check that the distortion reading is:
wide bandwidth ≤2%
mid and narrow bandwidth ≤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).
B3.12
T855 Initial Tuning & Adjustment
M850-00
31/09/98 Copyright TEL
3.8 Gating Delay
Two solder links (SL210 & SL220) are provided on the bottom of the PCB to allow three
gate delay time options, as shown in the table below.
*Factory setting.
3.9 Noise Mute Adjustment
Connect pins 1 & 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) to close the mute (if necessary turn off the RF sig-
nal and then turn it on again).
Rotate RV310 anticlockwise until the mute just opens.
Once the mute has been set up as described above, adjust RV230 for the required open-
ing sinad.
3.10 Carrier Level Mute
Connect pins 2 & 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) to close the mute (if necessary, momentarily turn off
the RF), then slowly adjust it until the mute just opens. The mute should now
open at this preset level.
SL210 SL220 Closing Delay
linked not linked <50ms*
not linked linked <25ms
not linked not linked <20ms
M850-00
T855 Initial Tuning & Adjustment
B3.13
Copyright TEL 31/09/98
3.11 Audio Processor
3.11.1 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 give an output of +10dBm on the 600 ohm
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 2V rms into a 4
ohm resistive load.
Check for any clipping or distortion on the oscilloscope.
Switch to a 4 ohm speaker and adjust RV205 to the required level.
3.12 CTCSS
3.12.1 Decoder Operation
Program a CTCSS tone on the set channel using PGM800Win.
Set the RF signal generator output to -70dBm.
Modulate the generator with:
• a 1kHz tone at ±3kHz deviation (±2.4kHz) [±1.5kHz]
• 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.
B3.14
T855 Initial Tuning & Adjustment
M850-00
31/09/98 Copyright TEL
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 & 2 linked (G - H; high pass filter bypassed), check that the
sinad is less than 6dB.
Reset RV230.
3.12.3 High Pass Filter
Set the audio processor links as follows:
Reset the RF signal generator output to -70dBm and note the line level (measure-
ment A).
Reduce the 1kHz generator to zero output and measure the line level again (meas-
urement 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 -100dBm 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.
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
M850-00
T855 Functional Testing
B4.1
Copyright TEL 31/09/98
4 T855 Functional Testing
Caution:
This equipment contains CMOS devices which are susceptible to dam-
age from static charges. Refer to Section 1.2 in Part A for more infor-
mation 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 follow-
ing sections refers to version 2.00 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 & Carrier Mute Linked In) 4.7
Figure Title Page
4.1
4.2
4.3
T855 De-emphasised Audio Frequency Response
T855 RSSI Voltage vs Signal Strength
T855 Main Tuning & Adjustment Controls
4.5
4.6
4.9
M850-00
T855 Functional Testing
B4.3
Copyright TEL 31/09/98
4.1 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 750mA.
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-pro-
grammed 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.
B4.4
T855 Functional Testing
M850-00
31/09/98 Copyright TEL
4.4 Audio Distortion
The level of distortion measured at the line output (refer to Figure 1.3 in Part F) 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 600 ohms.
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 2V rms into a 4 ohm 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 & 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.
M850-00
T855 Functional Testing
B4.5
Copyright TEL 31/09/98
4.6 De-emphasised Audio Frequency Response
Set RV210 (front panel line level) to provide 0dBm output at 1kHz modulating fre-
quency.
Sweep the modulating frequency, checking that the line audio response closely
follows that shown in Figure 4.1 - the limits should not be exceeded.
Figure 4.1 T855 De-emphasised Audio Frequency Response
Wide Bandwidth
Narrow Bandwidth
+25
+20
Audio Level (dB ref. to O/P @ 1kHz)
+15
+10
+5
+0
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
-55
100 200 300 500 1k 2k 3k 5k 10k
Frequency (Hz)
25°C 13.8V
Ref. audio power:
+0.0dBm @ 1kHz
+25
+20
Audio Level (dB ref. to O/P @ 1kHz)
+15
+10
+5
+0
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
-55
100 200 300 500 1k 2k 3k 5k 10k
Frequency (Hz)
25°C 13.8V
Ref. audio power:
-2.2dBm @ 1kHz
Mid Bandwidth +25
+20
Audio Level (dB ref. to O/P @ 1kHz)
+15
+10
+5
+0
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
-55
100 200 300 500 1k 2k 3k 5k 10k
Frequency (Hz)
25°C 13.8V
Ref. audio power:
-2.5dBm @ 1kHz
B4.6
T855 Functional Testing
M850-00
31/09/98 Copyright TEL
4.7 Noise Mute (If Linked In)
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:
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.
4.8 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 Fig-
ure 4.2 for RSSI voltage vs signal strength).
Figure 4.2 T855 RSSI Voltage vs Signal Strength
RF Level (dBm)
-130 -120 -110 -100 -90 -80 -70 -60
1
2
3
4
5
6
7
8
RSSI Voltage
M850-00
T855 Functional Testing
B4.7
Copyright TEL 31/09/98
4.9 Carrier Level Mute (RSSI Fitted & 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.
M850-00
T855 Fault Finding
B5.1
Copyright TEL 31/09/98
5 T855 Fault Finding
Caution:
This equipment contains CMOS devices which are susceptible to dam-
age from static charges. Refer to Section 1.2 in Part A for more infor-
mation 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 Customer Support, Radio Systems Division, Tait Elec-
tronics 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 follow-
ing sections refers to version 2.00 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
5.4.1
5.4.2
5.4.3
DC Checks
Power Rails
VCO Locking
Mute Operation
5.4
5.4
5.4
5.4
5.5
5.5.1
5.5.2
5.5.3
5.5.3.1
5.5.3.2
5.5.4
5.5.5
RF Checks
VCO Frequency
RF Sensitivity
Oscillator Stability
TCXO
Second IF
Demodulator Output
IF Distortion
5.5
5.5
5.5
5.6
5.6
5.6
5.6
5.6
B5.2
T855 Fault Finding
M850-00
31/09/98 Copyright TEL
5.6 PGM800Win Generated Errors 5.8
5.7
5.7.1
5.7.1.1
5.7.1.2
5.7.1.3
5.7.2
5.7.3
5.7.4
5.7.5
5.7.6
5.7.7
Fault Finding Charts
Microcontroller (IC810)
Basic Checks
Serial Communication
CTCSS Decode
Regulator
Synthesiser
Noise Mute
Carrier Mute
Receiver
Audio
5.9
5.9
5.9
5.10
5.11
5.12
5.13
5.16
5.17
5.18
5.19
Figure Title Page
5.1
5.2
5.3
RF Test Cable
IF Swept Response
Ceramic Filter Swept Response
5.5
5.7
5.7
Section Title Page
M850-00
T855 Fault Finding
B5.3
Copyright TEL 31/09/98
5.1 Visual Checks
Remove the covers from the T855 and inspect the PCB for damaged or broken compo-
nents, 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 for-
ward and reverse resistance of the junctions. Unless the device is completely desol-
dered, 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 20k ohm/V or bet-
ter multimeter, using only the medium or low resistance ranges).
The collector current drawn by multi-junction transistors is a further guide to their per-
formance.
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 receiver front panel will flash according to the condi-
tions described in the following table:
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).
Flash Rate Condition
fast ( sec. on/ sec. off
approx.) receiver is linked with
PGM800Win
slow (1 sec. on/1 sec. off
approx.) VCO is out of lock -
refer to Section 5.4.2
unequal ( sec. on/1 sec. off
approx.) microcontroller has detected an
internal communications error -
refer to Section 5.7.1
B5.4
T855 Fault Finding
M850-00
31/09/98 Copyright TEL
5.4 DC Checks
5.4.1 Power Rails
Refer to the test points & 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 compart-
ment.
Check the 5V regulator output at the test point (TP604) in the regulator compart-
ment 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 1-2
carrier mute 2-3.
Check that the mute gate opens as follows:
noise mute - rotate RV230 (front panel gating sensitivity) fully clock-
wise 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).
M850-00
T855 Fault Finding
B5.5
Copyright TEL 31/09/98
5.5 RF Checks
5.5.1 VCO Frequency
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.
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.
1nF
Coax
To Test Cable
Connect To Earth
B5.6
T855 Fault Finding
M850-00
31/09/98 Copyright TEL
5.5.3 Oscillator Stability
5.5.3.1 TCXO
While maintaining a low level unmodulated RF input to the receiver, loosely cou-
ple 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 cou-
ple 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 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 dis-
played on the oscilloscope screen.
Note:
The "X" input should be DC coupled.
M850-00
T855 Fault Finding
B5.7
Copyright TEL 31/09/98
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
B5.8
T855 Fault Finding
M850-00
31/09/98 Copyright TEL
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.
Write/Read To An Unlinked Module
The link to the module does not exist. Undefined error.
M850-00
T855 Fault Finding
B5.9
Copyright TEL 31/09/98
5.7 Fault Finding Charts
Note:
The standard test point designations used in this section are as follows:
TP601 13.8V
TP602 9V
TP603 20V
TP604 5V
5.7.1 Microcontroller (IC810)
5.7.1.1 Basic Checks
Pulsing Check state
of pin 35.
Y
Is pin 30
pulsing?
High or open circuit
Y
Static high/low
Check state of
pins 36 to 43.
Low/floating
High
Is the 12.8MHz clock
present on IC810 pin 21
(microcontroller)?
N
Replace
IC810.
Check IC740
(synthesiser).
*digital storage oscilloscope
Replace IC810.
Check the
state of
pin 10.
N Pulsing
Low
Replace
IC810.
Use a DSO* to check
operation of IC650
(i.e. active high
pulse at power up).
Replace
IC650.
Correct the fault causing
pin 35 to be low/floating.
B5.10
T855 Fault Finding
M850-00
31/09/98 Copyright TEL
5.7.1.2 Serial Communication
Check pin state.
Y
Low/floatin
g
N
Noise
on pin
Disconnect the
pro
g
rammin
g
lead.
Is IC810 pin 11 hi
g
h?
(microcontroller)
Y*di
g
ital stora
g
e
oscilloscope
Use PGM800Win
to send a POLL
command to the
radio.
Check the transistor
interface circuitry
and/or replace the
pro
g
rammin
g
lead.
Check the SERIAL-COM
and AUDIO-1/2 links.
Replace
IC810.
Check the transistor
interface circuitry
and/or replace the
pro
g
rammin
g
lead.
Check the transistor
interface circuitry.
Check IC810 pin 13
with a DSO. Is there
a response from IC810 after
a poll command is sent?
N
Y
Connect the pro
g
rammin
g
lead and use PGM800Win
to read the rack/radio.
Check I/O pad P810
with a DSO*.
Does it swin
g
from
0 to 5V?
N
M850-00
T855 Fault Finding
B5.11
Copyright TEL 31/09/98
5.7.1.3 CTCSS Decode
Y
No square wave or
uneven mark/space ratio
Use PGM800Win to
select a channel
with a CTCSS tone
pro
g
rammed.
Check serial communications.
(See separate flow chart).
Cannot select a channel
Check IC810 pins 24 & 26
(microcontroller).
Are there 5V square waves at
the CTCSS frequency?
Y
Check IC850 pins 1 & 14.
Are there 9V square waves at
the CTCSS frequency? Replace IC850.
Y
Is IC850 pin 7 low and
Q845 collector hi
g
h? Replace IC850
or Q845.
N
Y
Is IC810 pin 31 low? Replace IC810.
N
Y
Check the receiver
mute circuit.
Set test equipment to correct
channel/CTCSS tone.
Check IC830 pin 7.
Is there a square wave at
the CTCSS input frequency?
Replace IC810.
No square waves or
uneven mark/space ratio
No square waves or
uneven mark/space ratio
Check the input filter
is operatin
g
correctly
(IC830 pin 8).
B5.12
T855 Fault Finding
M850-00
31/09/98 Copyright TEL
5.7.2 Regulator
Check for
overheatin
g
components &
short circuits.
13.8V present on
IC630 pin 3?
5.3V present on
IC630 pin 1?
Check Q620,
Q630 & IC640.
Check Q660 is
switchin
g
at
approx. 180kHz.
5V present on
IC610 pin 2?
Replace IC630.
Check R615.
Replace IC610.
Check continuity
from D-ran
g
e
connector pin 9.
(D-ran
g
e 1)
N
Y
N
Y
N
Y
N
Y
N
Re
g
ulators OK.
Y
20V present
on TP603?
9.0V present
on TP602?
M850-00
T855 Fault Finding
B5.13
Copyright TEL 31/09/98
5.7.3 Synthesiser
Refer to the synthesiser circuit diagram (sheet 7) in Section 6 and the VCO circuit dia-
gram in Part E.
NCheck biasin
g
resistors, Q4 & Q5.
Check 9V re
g
.
N
Y
N
8.3V present
at VCO?
DC V present
at Q4 & Q5?
9V present at
VCO Q4/Q5?
Check Q4 C
multiplier
(synth).
No VCO RF output.
Y
DC V present at
VCO, Q1, Q2 & Q3?
Check biasin
g
resistors, Q1,
Q2 & Q3.
Y
N
Capacitors OK?
Check for cracks,
shorts, etc.
N
Y
Replace VCO.
Replace
if faulty.
Y
Y
N
N
N
Y
Y
Check biasin
g
resistors & Q1.
DC V present
on Q795 emitter?
Check 9V supply.
9V present on
Q795 divider buffer?
20V inverter
supply faulty.
20V present
on IC750 pin 8?
Check 5V re
g
. &
supply resistor
to each IC.
VCO out of lock.
Y
Y
Y
Continued on the next pa
g
e
Y
VCO freq. correct?
Synthesiser OK.
VCO trimmer
freq. ran
g
e OK?
Check VCO tunin
g
caps & trimmer.
VCO OK.
N
N
NN
N
Y
Y
Recheck
pro
g
rammin
g
via PGM800Win.
+5V present
at IC700, IC710
& IC740?
Does VCO trimmer
adjust for stable
control line between
3 & 16V?
Does VCO trimmer
adjust for required
frequency ran
g
e
between 3 & 16V?
Is 8MHz VCO ran
g
e
achieved between
3 & 16V?
N
Check #C1, L1, L2,
D1 & D2 in VCO.
AB
B5.14
T855 Fault Finding
M850-00
31/09/98 Copyright TEL
Programming and
serial bus OK?
Is reference
clock present
at IC740 pin 20
(12.8MHz >1.5Vpp)?
Check programming.
Check serial bus
when programming
i.e. clock/data/enable
activity (IC740 pins
18, 19 & 17). NN
Check loop filter components
R775, C774, C776, R510,
C505, IC750. Is the supply
to IC750 +20V +4, -2V?
Check regulator circuitry.
Check C772, R774, R772,
C770, R763 & Q790.
Check Q760, Q780,
R766 & C765.
Check charge pump components
(Q775 & Q780) and Q790.
Check R762 & C762.
Check the signal path from
the VCO to synthesiser.
Measure the frequency from
the VCO at IC740 pin 11 using
a frequency counter.
Is the level >-10dBm?
Does the frequency adjust
as the VCO trimmer is
adjusted (out of lock)?
Check VCO.
Y
Y
Y
Signal
Y
Y
Y
No signal
Replace synthesiser
(IC740).
Y
N Y
Y
N
N
N
N
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.
Is the charge pump bias
voltage at the base of
Q760 & Q780 between
3.5 and 5V? (5V when locked)
N
Is the voltage on C762,
R760, and R758 9V ±0.2V?
Is the loop filter reference
voltage at C772 (+) 6.5V ±0.2V?
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).
Check microcontroller
section (IC810). Check TCXO (IC700)
and buffers (IC710).
Replace synthesiser
(IC740).
Continued from previous page
B
Is the charge pump voltage
on Q790 gate between
3 and 8.5V? (6.5V ±0.2V locked)
M850-00
T855 Fault Finding
B5.15
Copyright TEL 31/09/98
Y
N
Y
Y
Y
Y
N
Y
Y
Y
C
Noisy synth; poor
selectivity &/or
poor residual FM.
Correct DC V
present on Q1 VCO?
Chan
g
e trimmer;
still noisy?
Chan
g
e Q1;
still noisy?
Chan
g
e TCXO;
still noisy?
Chan
g
e varactors;
still noisy?
Replace VCO
assembly.
Synthesiser OK.
N
N
N
N
Check inductors,
biasin
g
resistors
& Q1.
Replace if faulty.
Go to B.
Loop filter &
components around
op. amp. (IC750) OK?
N
VCO phase locked?
3-16V present on
control line?
B5.16
T855 Fault Finding
M850-00
31/09/98 Copyright TEL
5.7.4 Noise Mute
Refer to audio
fault finding chart.
Ensure PL250 is set
for noise mute operation.
Check Q340
& Q350.
Check D310 is
rectifying noise.
Vary RF level &
observe voltage
on pad 236.
Pad 236 voltage
varies 0-1.8V?
Check 9V rail &
resistors R264,
R265 & R284.
Replace IC270.
Check/replace
IC270 & D240.
Replace Q250.
NY
N
Y
N
Y
Y
N
Y
Y
Y
Y
N
Refer to
receiver fault
finding chart.
Check components
around active filter.
Mutable audio
on outputs?
Y
Voltage varies
0-2.5V?
N
OK
Does "Gate" LED
toggle on/off?
N
Check Q230, Q245 &
Q290 for operation.
Y
Adjust RV230
(gating sensitivity)
& observe voltage
on IC270 pin 3.
Set RF signal level to
-117dBm. Rotate
RV230 c/w & cc/w.
Monitor voltage on
IC270 pin 1. Switching
0-8V as RV230 rotated?
Monitor voltage on
IC270 pin 7. Switching
0-8V as RV230 rotated?
Monitor voltage on
pad 234. Switching
0-8V as RV230 rotated?
N
N
N
Does "Gate"
LED toggle? Check/replace
Q255 & D250.
Y
YN
Check RV330
adjustment
(noise mute gain).
Approx. 0.6V DC rect-
ified noise on pad 236?
N
Switch SW201 (monitor
mute) to ensure
mute is enabled.
Rotate RV230
(gating sensitivity)
c/w & cc/w & view
"Gate" LED.
Note:
c/w = clockwise
cc/w = counterclockwise
or anticlockwise
Audio on
TP314?
Noise on
IC310 pin 11?
Amplified noise
on C380?
Apply on channel signal
@ -117dBm* to receiver. *Modulated by 1kHz signal with
±3kHz (±2.4kHz) [±1.5kHz] deviation
M850-00
T855 Fault Finding
B5.17
Copyright TEL 31/09/98
5.7.5 Carrier Mute
Approx. 5V on
RSSI pad 238?
Approx. 5V on
IC280 pin 1? Check/replace IC280
& adjoining components.
Check Q230, Q245 &
Q290 for operation. Adjust RV235 &
observe voltage
on IC280 pin 6.
Switch SW201
(monitor mute) to ensure
mute is enabled.
Y
N
N
N
Y
Y
Does "Gate" LED
toggle on/off?
Refer to
receiver fault
finding chart.
N
Y
Y
Voltage varies
0-6V?
Check 9V rail &
resistors R275,
R277 & RV235.
Y
N
Set RF signal level
to -95dBm. Rotate
RV235 c/w & cc/w.
Monitor voltage on
IC280 pin 7. Switching
0-8V as RV235 rotated? Replace IC280.
N
Y
Monitor voltage on
IC270 pin 7. Switching
0-8V as RV235 rotated?
Check/replace
IC270 & D240.
N
Y
Monitor voltage on
pad 234. Switching
0-8V as RV235 rotated? Replace Q250.
N
Y
Does "Gate"
LED toggle? Check/replace
Q255 & D250.
YN
Mutable audio
on outputs?
OK
N
Y
Refer to audio
fault finding chart.
Note:
c/w = clockwise
cc/w = counterclockwise
or anticlockwise
Rotate RV235
(carrier mute) c/w & cc/w
& view "Gate" LED.
Apply on channel signal
@ -110dBm* to receiver.
Audio on
TP314?
*Modulated by 1kHz signal with
±3kHz (±2.4kHz) [±1.5kHz] deviation.
Approx. 2V at
D-Range 1 pin 5?
N
Ensure PL250 is set
for carrier mute operation,
and the RSSI PCB is fitted.
Check for short circuits
and/or replace IC310.
Check Q340 and
adjoining components.
B5.18
T855 Fault Finding
M850-00
31/09/98 Copyright TEL
5.7.6 Receiver
Refer to the receiver IF and front end circuit diagrams (sheets 3 & 4) in Section 6.
High audio
distortion.
B
Check VCO
frequency OK? Readjust TCXO
frequency.
Check IF
alignment OK? Adjust IF coils.
Fault find audio.
OK
Check
sensitivity
into each
IF stage.
Repair stage.
Replace TCXO.
Refer to
synthesiser
fault finding
charts.
Check TCXO
stability OK?
(see 5.5.3)
N
Y
N
Y
N
Y
N
Y
N
Y
N
Y
NY
Y
Y
Ensure VCO, RF
front end & IF
correctly aligned.
High audio
distortion?
Check/repair faulty
stage or component.
Check DC
conditions OK?
(see cct diagrams)
Check sensitivity
into each stage
(see 5.5.2)
See Chart B
(below).
Replace
faulty device.
Y
N
N
Y
Poor sensitivity:
worse than -117dBm.
A
Quad coil L390
tuned for min.
distortion (flat
audio response)?
Adjust L390.
Retune all
IF coils.
Check distortion
TP314 OK?
Inject on-channel
RF into mixer TP411.
Measure distortion.
OK?
Check distortion
TP314,
injecting 45MHz
@ -47dBm into TP310
at Q320 input. OK?
Inject 45MHz
after mixer IF
output TP412.
Measure distortion.
OK?
Fault in IC310,
&XF302, Q330,
Q320, &XF301 or
surrounding circuitry.
Check/replace.
M850-00
T855 Fault Finding
B5.19
Copyright TEL 31/09/98
5.7.7 Audio
Audio on
IC210 pin 1? Check components
around IC210.
Apply on channel si
g
nal
@ -117dBm* to receiver.
Refer to
receiver fault
findin
g
chart.
Ensure RV230
(
g
atin
g
sensitivity)
fully clockwise.
"Gate" LED on? Refer to mute
fault findin
g
charts.
Y
N
N
Y
N
Y
N
Y
Audio on
speaker?
Audio on
C238/C259?
Audio on
IC240 pin 2 &
IC260 pin 2?
Replace C249 &
check continuity.
Audio on line
monitor (pad 284)
& line output?
Refer to mute
fault findin
g
charts.
OK
Check/replace
output components.
N
Y
N
Y
N
Y
N
Y
Audio on
TP314?
Audio at
top of RV205
& RV210?
Check C233.
Check link PL240.
Replace
faulty IC.
*Modulated by 1kHz si
g
nal with
±3kHz (±2.4kHz) [±1.5kHz] deviation.
M850-00
T855 PCB Information
B6.1.1
Copyright TEL 31/09/98
6 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 & options connections drawings
• circuit diagrams.
Section Title IPN Page
6.1 Introduction 6.1.3
6.2 T800-04-0000 RSSI PCB 220-01138-00 6.2.1
6.3 T855 Receiver PCB 220-01396-02 6.3.1
M850-00
T855 PCB Information
B6.1.3
Copyright TEL 31/09/98
6.1 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 1.3 in this Part of the 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.
Note:
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 there-
fore 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.
855-30 PRODUCT TYPE
855-35 855-10 855-20
855- 855-13 855-23
PRODUCT TYPE 855-15 855-25
B6.1.4
T855 PCB Information
M850-00
31/09/98 Copyright TEL
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 refer-
ence (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:
The miscellaneous and mechanical section lists the variant and common parts in IPN order.
Parts List Amendments
At the front of the parts list is the Parts List Amendments box (an example of which is shown
below). This box contains a list of component changes which took place after the parts list and dia-
grams in this section were compiled. These changes (e.g. value changes, added/deleted compo-
nents, etc.) are listed by circuit reference in alphanumeric order and supersede the information
given in the parts list or diagrams. Components without circuit references are listed in IPN order.
The number in brackets at the end of each entry refers to the Tait internal Change Order document.
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
Internal Part Number -
order the component
b
y
this number
description -
gives a brief description
of the component
Parts List Amendments
R306 Changed from 180Ωto 560Ω(036-13560-00) to increase sensitivity (71003).
circuit reference
or IPN description
of change
IPN of new
component Change Order
number
M850-00
T855 PCB Information
B6.1.5
Copyright TEL 31/09/98
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 Series II products:
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 alpha-
numeric order, along with the appropriate alphanumeric grid references, as shown below:
If the variant prefix is. . . the component will. . .
& change according to channel spacing
= change according to frequency stability
# change according to frequency range
% be placed or unplaced for special applications
*be unplaced in one product
(where two products share the same PCB)
circuit diagram
reference
PCB layout
reference
components listed
in alphanumeric order
layer number -
1 = top side layer
2 = bottom side layer
component location
on the layer
sheet number
component location
on the sheet
B6.1.6
T855 PCB Information
M850-00
31/09/98 Copyright TEL
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 num-
bers 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).
C301
4N7
R303
12
D
S
G
L310
33U
IF-SIG
4R4
C369
100P
C371
10U
R339
100K
%R338
100
DISCRIMINATOR
1R3
2R9
2R9
8A2
t
hese grid references
s
how where the circuit
is continued
IPN 220-01138-00
M850-00
T800-04-0000 RSSI PCB Information
B6.2.3
Copyright TEL 31/09/98
T800-04-0000 Parts List (IPN 220-01138-00)
How To Use This Parts List
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 columns: the circuit reference, IPN and description. Static sensitive devices are indicated by an (S) at the start
of the description column.
The miscellaneous and mechanical parts are listed in IPN order at the end of the parts list.
The Parts List Amendments box below lists component changes that took place after the parts list and diagrams in this section were
compiled. These changes (e.g. value changes, added/deleted components, etc.) are listed by circuit reference in alphanumeric order
and supersede the information given in the parts list or diagrams. Components without circuit references are listed in IPN order.
Parts List Amendments
There were no amendments to the parts list at the time of publication.
IPN 220-01138-00
B6.2.4
T800-04-0000 RSSI PCB Information
M850-00
31/09/98 Copyright TEL
Ref Var IPN Description Ref Var IPN Description
C1 015-24100-08 CAP CER 0805 CHIP 1N 10% X7R 50V
C2 015-24100-08 CAP CER 0805 CHIP 1N 10% X7R 50V
C3 015-23330-08 CAP CER 0805 CHIP 330P 10% X7R 50V
C4 015-25100-08 CAP CER 0805 CHIP 10N 10% X7R 50V
C5 015-24100-08 CAP CER 0805 CHIP 1N 10% X7R 50V
C6 015-25100-08 CAP CER 0805 CHIP 10N 10% X7R 50V
C7 015-24470-08 CAP CER 0805 CHIP 4N7 10% X7R 50V
C8 015-25100-08 CAP CER 0805 CHIP 10N 10% X7R 50V
C9 015-24100-08 CAP CER 0805 CHIP 1N 10% X7R 50V
D1 001-10000-99 (S) DIODE SMD BAV99 DUAL SWTCH SOT23
IC1 002-10003-24 (S) IC SMD 324 QUAD OP AMP SO14
Q1 002-10033-46 (S) IC SMD MC3346D XSTR ARRAY SO14
R3 036-14100-00 RES M/F 0805 CHIP 1K 5%
R4 036-14220-00 RES M/F 0805 CHIP 2K2 5%
R5 036-15560-00 RES M/F 0805 CHIP 56K 5%
R6 036-15390-00 RES M/F 0805 CHIP 39K 5%
R7 036-15100-00 RES M/F 0805 CHIP 10K 5%
R8 036-13680-00 RES M/F 0805 CHIP 680E 5%
R9 036-14820-00 RES M/F 0805 CHIP 8K2 5%
R10 036-16220-00 RES M/F 0805 CHIP 220K 5%
R11 036-13470-00 RES M/F 0805 CHIP 470E 5%
R12 036-16330-00 RES M/F 0805 CHIP 330K 5%
R13 036-16100-00 RES M/F 0805 CHIP 100K 5%
R14 036-16180-00 RES M/F 0805 CHIP 180K 5%
R15 036-15220-00 RES M/F 0805 CHIP 22K 5%
R16 036-17100-00 RES M/F 0805 CHIP 1M 5%
R17 036-15330-00 RES M/F 0805 CHIP 33K 5%
R18 036-14100-00 RES M/F 0805 CHIP 1K 5%
R19 036-15100-00 RES M/F 0805 CHIP 10K 5%
R20 036-15100-00 RES M/F 0805 CHIP 10K 5%
R21 036-16330-00 RES M/F 0805 CHIP 330K 5%
R22 036-14470-00 RES M/F 0805 CHIP 4K7 5%
R23 036-15100-00 RES M/F 0805 CHIP 10K 5%
R24 036-16150-00 RES M/F 0805 CHIP 150K 5%
R25 036-16180-00 RES M/F 0805 CHIP 180K 5%
R26 036-15820-00 RES M/F 0805 CHIP 82K 5%
R29 036-14470-00 RES M/F 0805 CHIP 4K7 5%
R30 036-15100-00 RES M/F 0805 CHIP 10K 5%
R31 036-15220-00 RES M/F 0805 CHIP 22K 5%
R32 036-14470-00 RES M/F 0805 CHIP 4K7 5%
220-01138-00 PCB T700 RSSI
356-00010-52 PIN EDGE MTG 0.8MM PCB WAKO
M850-00
T855 PCB Information
B6.3.1
Copyright TEL 31/09/98
6.3 T855 Receiver PCB
This section contains the following information.
IPN Section Page
220-01396-02 Parts List
Mechanical & Miscellaneous Parts
Mechanical Assembly
Grid Reference Index
PCB Layout - Top Side
PCB Layout - Bottom Side
Test Points & Options Connections - Top Side
Test Points & Options Connections - Bottom Side
Receiver Overview Diagram
Audio Processor Circuit Diagram
IF Section Circuit Diagram
Front End Circuit Diagram
VCO Section Circuit Diagram
Regulators Circuit Diagram
Synthesiser Circuit Diagram
Microcontroller Circuit Diagram
Harmonic Filter Circuit Diagram
6.3.3
6.3.10
6.3.11
6.3.13
6.3.17
6.3.18
6.3.19
6.3.20
6.3.21
6.3.22
6.3.23
6.3.24
6.3.25
6.3.26
6.3.27
6.3.28
6.3.29
IPN 220-01396-02
M850-00
T855 PCB Information
B6.3.3
Copyright TEL 31/09/98
T855 Parts List (IPN 220-01396-02)
How To Use This Parts List
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: the circuit reference, variant (if applicable), IPN and description. A number in the variant col-
umn indicates that this is a variant component which is fitted only to the product type listed. Static sensitive devices are indicated by
an (S) at the start of the description column.
The miscellaneous and mechanical section lists the variant and common parts in IPN order. Where possible, a number in the legend
column indicates their position in the mechanical assembly drawing.
The Parts List Amendments box below lists component changes that took place after the parts list and diagrams in this section were
compiled. These changes (e.g. value changes, added/deleted components, etc.) are listed by circuit reference in alphanumeric order
and supersede the information given in the parts list or diagrams. Components without circuit references are listed in IPN order.
Parts List Amendments
C302 Changed from 120pF (IPN 015-23120-01) to 100pF (IPN 015-23100-01)
C304 Deleted
Additional
Capacitor
4p7 chip capacitor (IPN 015-21470-01 - no circuit reference) added in
parallel with L380 (on top of R328)
L380 Changed from Tait coil #621 (IPN 050-00016-21) to #622 (IPN 050-00016-22)
303-11169-03 T800 chassis: replaced by 303-11169-04
312-01052-01 T800 top lid: replaced by 312-01052-02
312-01053-01 T800 bottom lid: replaced by 312-01053-02
to improve the input match to
the post-mixer buffer (Q310)
(710264).
New chassis and lid tooling introduced, incorporating
mechanical improvements and better RF shielding
(750027, 750028 & 750029). Note that the new lids
should be used only with the new chassis.
IPN 220-01396-02
B6.3.4
T855 PCB Information
M850-00
31/09/98 Copyright TEL
Ref Var IPN Description Ref Var IPN Description
C201 020-08100-04 CAP ELE RA 10M 16V 4X7MM
&C203 10 015-25100-08 CAP CER 0805 10N 10% X7R 50V
&C203 13 015-25100-08 CAP CER 0805 10N 10% X7R 50V
&C203 15 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
&C203 20 015-25100-08 CAP CER 0805 10N 10% X7R 50V
&C203 23 015-25100-08 CAP CER 0805 10N 10% X7R 50V
&C203 25 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
&C203 30 015-25100-08 CAP CER 0805 10N 10% X7R 50V
&C203 35 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
&C205 10 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
&C205 13 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
&C205 15 015-25100-08 CAP CER 0805 10N 10% X7R 50V
&C205 20 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
&C205 23 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
&C205 25 015-25100-08 CAP CER 0805 10N 10% X7R 50V
&C205 30 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
&C205 35 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C207 020-07100-02 CAP ELE RA 1M 50V 5X11MM
C209 020-08470-02 CAP ELE RA 47M 16V 6X11MM
C210 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C211 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C213 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C215 015-21220-01 CAP CER 0805 2P2+-1/4P NPO 50V
C217 015-22470-01 CAP CER 0805 47P 5% NPO 50V
C219 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C221 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C222 020-08100-04 CAP ELE RA 10M 16V 4X7MM
C223 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C225 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C227 015-23100-01 CAP CER 0805 100P 5% NPO 50V
C229 020-08100-04 CAP ELE RA 10M 16V 4X7MM
C231 020-08100-04 CAP ELE RA 10M 16V 4X7MM
C233 020-08100-04 CAP ELE RA 10M 16V 4X7MM
C235 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C237 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C238 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C239 020-09100-03 CAP ELE RA 100M 16V 8X11MM
C240A 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C240B 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C240C 020-09220-01 CAP ELE RA 220M 16V 10X12.5MM
C249 020-09470-05 CAP ELE RAD 470M 16V 10X12.5MM
C251 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C253 020-09100-03 CAP ELE RA 100M 16V 8X11MM
C255 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C257 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C259 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C260A 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C260B 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C260C 020-09220-01 CAP ELE RA 220M 16V 10X12.5MM
C261 020-09100-03 CAP ELE RA 100M 16V 8X11MM
C262 020-09100-03 CAP ELE RA 100M 16V 8X11MM
C264 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C266 020-07470-91 CAP ELE RA 4M7 63V 6X11MM BI-P
C268 020-07470-91 CAP ELE RA 4M7 63V 6X11MM BI-P
C270 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C272 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C274 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C276 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C278 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C280 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C286 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C302 015-23100-01 CAP CER 0805 100P 5% NPO 50V
C306 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C308 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C310 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C312 020-58100-03 CAP ELE AI RDL 10M 50V 5X11MM
C314 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C316 015-22150-01 CAP CER 0805 15P 5% NPO 50V
&C318 10 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
&C318 13 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
&C318 15 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
&C318 20 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
&C318 23 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
&C318 25 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
&C318 30 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
&C318 35 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
&C320 10 015-21390-01 CAP CER 0805 3P9+-1/4P NPO 50V
&C320 13 015-21390-01 CAP CER 0805 3P9+-1/4P NPO 50V
&C320 15 015-21390-01 CAP CER 0805 3P9+-1/4P NPO 50V
&C320 20 015-21390-01 CAP CER 0805 3P9+-1/4P NPO 50V
&C320 23 015-21390-01 CAP CER 0805 3P9+-1/4P NPO 50V
&C320 25 015-21390-01 CAP CER 0805 3P9+-1/4P NPO 50V
&C320 30 015-21390-01 CAP CER 0805 3P9+-1/4P NPO 50V
&C320 35 015-21390-01 CAP CER 0805 3P9+-1/4P NPO 50V
&C322 10 015-22150-01 CAP CER 0805 15P 5% NPO 50V
&C322 13 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
&C322 15 015-22150-01 CAP CER 0805 15P 5% NPO 50V
&C322 20 015-22150-01 CAP CER 0805 15P 5% NPO 50V
&C322 23 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
&C322 25 015-22150-01 CAP CER 0805 15P 5% NPO 50V
&C322 30 015-22150-01 CAP CER 0805 15P 5% NPO 50V
&C322 35 015-22150-01 CAP CER 0805 15P 5% NPO 50V
&C324 10 015-21390-01 CAP CER 0805 3P9+-1/4P NPO 50V
&C324 13 015-21390-01 CAP CER 0805 3P9+-1/4P NPO 50V
&C324 15 015-21390-01 CAP CER 0805 3P9+-1/4P NPO 50V
&C324 20 015-21390-01 CAP CER 0805 3P9+-1/4P NPO 50V
&C324 23 015-21390-01 CAP CER 0805 3P9+-1/4P NPO 50V
&C324 25 015-21390-01 CAP CER 0805 3P9+-1/4P NPO 50V
&C324 30 015-21390-01 CAP CER 0805 3P9+-1/4P NPO 50V
&C324 35 015-21390-01 CAP CER 0805 3P9+-1/4P NPO 50V
&C326 10 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
&C326 13 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
&C326 15 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
&C326 20 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
&C326 23 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
&C326 25 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
&C326 30 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
&C326 35 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
C328 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C330 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C332 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
&C334 10 015-22470-01 CAP CER 0805 47P 5% NPO 50V
&C334 13 015-22470-01 CAP CER 0805 47P 5% NPO 50V
&C334 15 015-22470-01 CAP CER 0805 47P 5% NPO 50V
&C334 20 015-22470-01 CAP CER 0805 47P 5% NPO 50V
&C334 23 015-22470-01 CAP CER 0805 47P 5% NPO 50V
&C334 25 015-22470-01 CAP CER 0805 47P 5% NPO 50V
&C334 30 015-22470-01 CAP CER 0805 47P 5% NPO 50V
&C334 35 015-22470-01 CAP CER 0805 47P 5% NPO 50V
&C336 10 015-22120-01 CAP CER 0805 12P 5% NPO 50V
&C336 13 015-22120-01 CAP CER 0805 12P 5% NPO 50V
&C336 15 015-22100-01 CAP CER 0805 10P+-1/2P NPO 50V
&C336 20 015-22120-01 CAP CER 0805 12P 5% NPO 50V
&C336 23 015-22120-01 CAP CER 0805 12P 5% NPO 50V
&C336 25 015-22100-01 CAP CER 0805 10P+-1/2P NPO 50V
&C336 30 015-22120-01 CAP CER 0805 12P 5% NPO 50V
&C336 35 015-22100-01 CAP CER 0805 10P+-1/2P NPO 50V
&C338 10 015-22120-01 CAP CER 0805 12P 5% NPO 50V
&C338 13 015-22120-01 CAP CER 0805 12P 5% NPO 50V
&C338 15 015-22100-01 CAP CER 0805 10P+-1/2P NPO 50V
&C338 20 015-22120-01 CAP CER 0805 12P 5% NPO 50V
&C338 23 015-22120-01 CAP CER 0805 12P 5% NPO 50V
&C338 25 015-22100-01 CAP CER 0805 10P+-1/2P NPO 50V
&C338 30 015-22120-01 CAP CER 0805 12P 5% NPO 50V
&C338 35 015-22100-01 CAP CER 0805 10P+-1/2P NPO 50V
&C340 10 015-22470-01 CAP CER 0805 47P 5% NPO 50V
&C340 13 015-22470-01 CAP CER 0805 47P 5% NPO 50V
&C340 15 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
&C340 20 015-22470-01 CAP CER 0805 47P 5% NPO 50V
&C340 23 015-22470-01 CAP CER 0805 47P 5% NPO 50V
&C340 25 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
&C340 30 015-22470-01 CAP CER 0805 47P 5% NPO 50V
&C340 35 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C342 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C344 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C346 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C348 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C350 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C351 015-21100-01 CAP CER 0805 1PO+-1/4P NPO 50V
C352 015-22150-01 CAP CER 0805 15P 5% NPO 50V
C353 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C354 025-08100-02 CAP TANT BEAD 10M 10% 16V
C356 015-22150-01 CAP CER 0805 15P 5% NPO 50V
C357 015-05470-08 CAP CER 1206 47N 10% X7R 50V
C358 015-05470-08 CAP CER 1206 47N 10% X7R 50V
C360 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C362 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C364 015-22390-01 CAP CER 0805 39P 5% NPO 50V
C366 015-22390-01 CAP CER 0805 39P 5% NPO 50V
C368 015-05470-08 CAP CER 1206 47N 10% X7R 50V
C370 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C372 015-05470-08 CAP CER 1206 47N 10% X7R 50V
C374 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C376 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C378 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C380 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C382 020-58100-03 CAP ELE AI RDL 10M 50V 5X11MM
C384 015-05470-08 CAP CER 1206 47N 10% X7R 50V
C386 015-05470-08 CAP CER 1206 47N 10% X7R 50V
C388 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C390 025-08100-02 CAP TANT BEAD 10M 10% 16V
C392 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C394 015-05470-08 CAP CER 1206 47N 10% X7R 50V
C410 015-21180-01 CAP CER 0805 1P8+-1/4P NPO 50V
C420 015-22470-01 CAP CER 0805 47P 5% NPO 50V
C430 015-23100-01 CAP CER 0805 100P 5% NPO 50V
C440 020-58100-03 CAP ELE AI RDL 10M 50V 5X11MM
C450 015-22470-01 CAP CER 0805 47P 5% NPO 50V
C470 015-22100-01 CAP CER 0805 10P+-1/2P NPO 50V
C480 015-22560-01 CAP CER 0805 56P 5% NPO 50V
C505 015-26100-08 CAP CER 0805 100N 10% X7R 50V
C515 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C530 014-08100-00 CAP TANT CHIP 10M 16VW +-20%
C535 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C610A 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C610B 020-09100-04 CAP ELE RA 100M 10V 6.3X9MM
C611A 020-09100-04 CAP ELE RA 100M 10V 6.3X9MM
C611B 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C623 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C625 020-09470-07 CAPEL470M16V20%V 8*20 3.5L.ESR
C626 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C628 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C630 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C631A 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C631B 025-08100-02 CAP TANT BEAD 10M 10% 16V
C637 015-23120-01 CAP CER 0805 120P 5% NPO 50V
IPN 220-01396-02
M850-00
T855 PCB Information
B6.3.5
Copyright TEL 31/09/98
Ref Var IPN Description Ref Var IPN Description
C640 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C651 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C658 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C660 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C665 020-58100-03 CAP ELE AI RDL 10M 50V 5X11MM
C670 025-07330-01 CAP TANT BEAD 3M3 35V
C673 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C677 020-07100-02 CAP ELE RA 1M 50V 5X11MM
C681 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C684 025-08100-02 CAP TANT BEAD 10M 10% 16V
C687 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C690 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C693 025-08100-02 CAP TANT BEAD 10M 10% 16V
C700 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C702 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C703 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C705 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
C707 015-22470-01 CAP CER 0805 47P 5% NPO 50V
C708 015-22470-01 CAP CER 0805 47P 5% NPO 50V
C709 015-22100-01 CAP CER 0805 10P+-1/2P NPO 50V
C710A 014-07470-00 CAP TANT CHIP 4U7 3.5 X 2.8MM
C710B 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C710C 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C711 015-22220-01 CAP CER 0805 22P 5% NPO 50V
C712 015-22220-01 CAP CER 0805 22P 5% NPO 50V
C713 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C735 015-22470-01 CAP CER 0805 47P 5% NPO 50V
C736 015-22470-01 CAP CER 0805 47P 5% NPO 50V
C740A 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C740B 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C741A 014-07470-00 CAP TANT CHIP 4U7 3.5 X 2.8MM
C741B 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C742A 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C742B 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C743 015-22470-01 CAP CER 0805 47P 5% NPO 50V
C745 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C750 025-08100-03 CAP 10M 35V 20% TANT 5MM L/S
C757 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C759 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C761 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C762 014-08220-01 (L)CAP TANT 22UF10V276MSER
C764 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C765 014-07470-00 CAP TANT CHIP 4U7 3.5 X 2.8MM
C767 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C769 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C770 014-08220-01 (L)CAP TANT 22UF10V276MSER
C772 014-08220-01 (L)CAP TANT 22UF10V276MSER
C774 022-06100-16 CAP METAL POLY 100N +-10% 100V
C776 015-24680-08 CAP CER 0805 6N8 10% X7R 50V
C782 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C784 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C786 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C788 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C791 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
C792 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C810 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C812 015-23100-01 CAP CER 0805 100P 5% NPO 50V
C813 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C814 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C815 015-05100-07 CAP 1206 CHIP NPO 10nF 25V
C816 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C818 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C819 015-22330-01 CAP CER 0805 33P 5% NPO 50V
C820 015-23220-01 CAP CER 0805 220P 5% NPO 50V
C822 015-25220-08 CAP CER 0805 22N 10% X7R 50V
C824 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C826 015-05100-07 CAP 1206 CHIP NPO 10nF 25V
C828 015-05100-07 CAP 1206 CHIP NPO 10nF 25V
C830 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C832 016-07100-01 CAP EL 6X4 1M 20% 50V
C833 015-25220-08 CAP CER 0805 22N 10% X7R 50V
C834 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C836 015-05100-07 CAP 1206 CHIP NPO 10nF 25V
C837 015-05100-07 CAP 1206 CHIP NPO 10nF 25V
C838 015-05100-07 CAP 1206 CHIP NPO 10nF 25V
C840 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C842 016-07100-01 CAP EL 6X4 1M 20% 50V
C844 016-07100-01 CAP EL 6X4 1M 20% 50V
C846 016-07100-01 CAP EL 6X4 1M 20% 50V
C848 016-07100-01 CAP EL 6X4 1M 20% 50V
C850 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C873 015-25220-08 CAP CER 0805 22N 10% X7R 50V
C876 020-09100-04 CAP ELE RA 100M 10V 6.3X9MM
C879 020-08100-04 CAP ELE RA 10M 16V 4X7MM
C910 015-21330-01 CAP CER 0805 3P3+-1/4P NPO 50V
C920 015-21680-01 CAP CER 0805 6P8+-1/4P NPO 50V
C930 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
C940 015-21680-01 CAP CER 0805 6P8+-1/4P NPO 50V
C950 015-21330-01 CAP CER 0805 3P3+-1/4P NPO 50V
D111 001-00011-60 S) DIODE SR2607 -- USE MR750
D220 001-10000-56 S) DIODE SMD BAW56 D-SW SOT23
D230 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23
D240 001-10000-99 S) DIODE SMD BAV99 D-SW SOT23
D260 001-10084-33 S) DIODE ZEN SMD 0.3W 3V3SOT23
D270 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23
D285 001-00011-70 S) DIODE 1N4001 1A/50V
D289 001-00011-70 S) DIODE 1N4001 1A/50V
D290 001-00011-70 S) DIODE 1N4001 1A/50V
D295 001-00011-70 S) DIODE 1N4001 1A/50V
D310 001-10000-56 S) DIODE SMD BAW56 D-SW SOT23
D610 001-10000-99 S) DIODE SMD BAV99 D-SW SOT23
D640 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23
D730 001-10065-00 DIODE BAT65 SCHOTTKEY SOD123
D740 001-10065-00 DIODE BAT65 SCHOTTKEY SOD123
D820 001-10065-00 DIODE BAT65 SCHOTTKEY SOD123
D860 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23
D880 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23
#FL410 10 051-00576-00 COIL HELIC 400-440MHz T855SII
#FL410 13 051-00576-00 COIL HELIC 400-440MHz T855SII
#FL410 15 051-00576-00 COIL HELIC 400-440MHz T855SII
#FL410 20 051-00577-00 COIL HELIC 440-480MHz T855SII
#FL410 23 051-00577-00 COIL HELIC 440-480MHz T855SII
#FL410 25 051-00577-00 COIL HELIC 440-480MHz T855SII
#FL410 30 051-00578-00 COIL HELIC 480-530MHz T855SII
#FL410 35 051-00578-00 COIL HELIC 480-530MHz T855SII
#FL420 10 051-00576-00 COIL HELIC 400-440MHz T855SII
#FL420 13 051-00576-00 COIL HELIC 400-440MHz T855SII
#FL420 15 051-00576-00 COIL HELIC 400-440MHz T855SII
#FL420 20 051-00577-00 COIL HELIC 440-480MHz T855SII
#FL420 23 051-00577-00 COIL HELIC 440-480MHz T855SII
#FL420 25 051-00577-00 COIL HELIC 440-480MHz T855SII
#FL420 30 051-00578-00 COIL HELIC 480-530MHz T855SII
#FL420 35 051-00578-00 COIL HELIC 480-530MHz T855SII
IC210 002-00012-40 S) IC 358 DUAL O-AMP
IC240 002-00014-05 S) IC TDA7231 1.6W AF PWR
IC260 002-00014-05 S) IC TDA7231 1.6W AF PWR
IC270 002-00012-40 S) IC 358 DUAL O-AMP
IC280 002-00012-40 S) IC 358 DUAL O-AMP
IC310 002-00014-73 S) IC MC3361CP IF AMP
IC320 002-00014-58 S) IC 78L05 5V 100MA REG TO92
IC410 002-00022-01 S) MIXER DOUBLE BLNCD 2-750MHZ
IC610 002-00014-58 S) IC 78L05 5V 100MA REG TO92
IC630 002-00014-62 S) IC 317L 100MA REG 3TER TO92
IC640 002-10003-58 S) IC SMD LM358 DUAL O-AMP
IC650 002-10012-32 SMD DS1232LPS-2 LP RESET&W-DOG
=IC700 539-00010-50 TCXO 12.8MHZ +-1PPM -20 +70C
IC710 002-74900-04 S) IC SMD 74HC04D 6X INV BUFFD
IC740 002-14519-10 S) IC MC145191F SMD SYNTH
IC750 002-10330-78 S) IC MC33078D 2X AMP LO NOISE
IC810 002-08951-20 S) IC AT89C51 PLCC44 MIC 12MHZ
IC820 002-12416-00 SMD AT24C16N-10SC EEPROM
IC830 002-10003-24 S) IC SMD 324 4X O-AMP SO14
IC840 002-10040-53 S)MC14053B SMD BREAK B4 MAKE
IC850 002-10003-24 S) IC SMD 324 4X O-AMP SO14
L230 056-00021-02 IND FXD 100UH AX
L310 050-00016-22 COIL TAIT NO 622 20-120M
L320 050-00016-22 COIL TAIT NO 622 20-120M
L330 050-00016-22 COIL TAIT NO 622 20-120M
L340 050-00016-22 COIL TAIT NO 622 20-120M
L350 050-00016-22 COIL TAIT NO 622 20-120M
L360 050-00016-22 COIL TAIT NO 622 20-120M
L370 050-00016-22 COIL TAIT NO 622 20-120M
L380 050-00016-22 COIL TAIT NO 622 20-120M
L385 050-00016-22 COIL TAIT NO 622 20-120M
L390 050-00016-31 COIL TAIT NO 631 455KHZ
L420 056-00021-04 IND FXD 330NH AX
L440 056-00021-04 IND FXD 330NH AX
L740 052-08125-15 COIL A/W 1.5T/2.5MM HOR 0.8MM
L910 052-08125-25 COIL A/W 2.5T/2.5MM HOR 0.8MM
L920 052-08140-15 COIL A/W 1.5T/4.0MM HOR 0.8MM
L930 052-08140-15 COIL A/W 1.5T/4.0MM HOR 0.8MM
L940 052-08125-25 COIL A/W 2.5T/2.5MM HOR 0.8MM
PL210 240-00020-59 HEADER 3 W 1 R PCB MTG
PL220 240-00020-59 HEADER 3 W 1 R PCB MTG
PL230 240-00020-63 HEADER 4 W X1R PCB MTG
PL240 240-00020-58 HEADER 5 WX1 R PCB MTG
PL250 240-00020-59 HEADER 3 W 1 R PCB MTG
PL260 240-00020-59 HEADER 3 W 1 R PCB MTG
PL270 240-00020-59 HEADER 3 W 1 R PCB MTG
Q210 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q220 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q230 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q240 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q245 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q250 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q255 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q260 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q270 000-10008-17 S) XSTR SMD BC817-25 NPN SOT23
Q280 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q290 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q310 000-50020-18 S) XSTR AI BF247A JFETTO92 VHF
Q320 000-10008-92 S) XSTR SMD BFS17 NPN SOT23
Q330 000-10009-91 S) XSTR SMD BF991 DG MFET
Q340 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q350 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q360 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q410 000-10057-10 S) XSTR SMD BR571 NPN SOT23
Q540 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q620 000-00012-15 S) XSTR BD234 PNP AF PWR TO126
Q630 000-50011-30 S) XSTR AI BC557B PNP TO92 AF
IPN 220-01396-02
B6.3.6
T855 PCB Information
M850-00
31/09/98 Copyright TEL
Ref Var IPN Description Ref Var IPN Description
Q660 000-10008-17 S) XSTR SMD BC817-25 NPN SOT23
Q670 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q750 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF
Q760 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q770 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q775 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q780 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q785 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q790 000-10003-12 S) XSTR SMD BFR31 N JFET SOT23
Q795 000-10057-10 S) XSTR SMD BR571 NPN SOT23
Q810 000-10008-17 S) XSTR SMD BC817-25 NPN SOT23
Q820 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q840 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q850 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q860 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q870 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q880 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q890 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q895 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
R160 036-12100-00 RES M/F 0805 10E 5%
R201 036-14470-00 RES M/F 0805 4K7 5%
&R202 10 036-14470-00 RES M/F 0805 4K7 5%
&R202 13 036-14470-00 RES M/F 0805 4K7 5%
&R202 15 036-14330-00 RES M/F 0805 3K3 5%
&R202 20 036-14470-00 RES M/F 0805 4K7 5%
&R202 23 036-14470-00 RES M/F 0805 4K7 5%
&R202 25 036-14330-00 RES M/F 0805 3K3 5%
&R202 30 036-14470-00 RES M/F 0805 4K7 5%
&R202 35 036-14330-00 RES M/F 0805 3K3 5%
R204 036-15100-00 RES M/F 0805 10K 5%
R205 036-16220-00 RES M/F 0805 220K 5%
R207 036-14820-00 RES M/F 0805 8K2 5%
&R209 10 036-15220-00 RES M/F 0805 22K 5%
&R209 13 036-15220-00 RES M/F 0805 22K 5%
&R209 15 036-15180-00 RES M/F 0805 18K 5%
&R209 20 036-15220-00 RES M/F 0805 22K 5%
&R209 23 036-15220-00 RES M/F 0805 22K 5%
&R209 25 036-15180-00 RES M/F 0805 18K 5%
&R209 30 036-15220-00 RES M/F 0805 22K 5%
&R209 35 036-15180-00 RES M/F 0805 18K 5%
R210 036-15150-00 RES M/F 0805 15K 5%
R211 036-15390-00 RES M/F 0805 39K 5%
R213 036-14270-00 RES M/F 0805 2K7 5%
R215 036-15150-00 RES M/F 0805 15K 5%
R218 036-14390-00 RES M/F 0805 3K9 5%
&R219 10 036-14820-00 RES M/F 0805 8K2 5%
&R219 13 036-14820-00 RES M/F 0805 8K2 5%
&R219 15 036-14470-00 RES M/F 0805 4K7 5%
&R219 20 036-14820-00 RES M/F 0805 8K2 5%
&R219 23 036-14820-00 RES M/F 0805 8K2 5%
&R219 25 036-14470-00 RES M/F 0805 4K7 5%
&R219 30 036-14820-00 RES M/F 0805 8K2 5%
&R219 35 036-14470-00 RES M/F 0805 4K7 5%
R221 036-15470-00 RES M/F 0805 47K 5%
R222 036-16100-00 RES M/F 0805 100K 5%
%R223 036-12100-00 RES M/F 0805 10E 5%
R224 036-14390-00 RES M/F 0805 3K9 5%
R225 036-13470-00 RES M/F 0805 470E 5%
R227 036-14100-00 RES M/F 0805 1K 5%
R229 036-14470-00 RES M/F 0805 4K7 5%
R230 036-14470-00 RES M/F 0805 4K7 5%
R232 036-15470-00 RES M/F 0805 47K 5%
R233 036-14820-00 RES M/F 0805 8K2 5%
R234 036-15470-00 RES M/F 0805 47K 5%
R236 036-15470-00 RES M/F 0805 47K 5%
R238 036-11470-00 RES M/F 0805 4E7 10%
R239 036-14100-00 RES M/F 0805 1K 5%
R241 036-14100-00 RES M/F 0805 1K 5%
R242 036-13100-00 RES M/F 0805 100E 5%
R244 036-14680-00 RES M/F 0805 6K8 5%
R245 036-14100-00 RES M/F 0805 1K 5%
R247 036-14220-00 RES M/F 0805 2K2 5%
R249 036-15100-00 RES M/F 0805 10K 5%
R251 036-15390-00 RES M/F 0805 39K 5%
R252 036-14470-00 RES M/F 0805 4K7 5%
R254 036-14820-00 RES M/F 0805 8K2 5%
R255 036-15470-00 RES M/F 0805 47K 5%
R256 036-14470-00 RES M/F 0805 4K7 5%
R258 036-15470-00 RES M/F 0805 47K 5%
R260 036-11470-00 RES M/F 0805 4E7 10%
R261 036-13150-00 RES M/F 0805 150E 5%
R262 036-14100-00 RES M/F 0805 1K 5%
R264 036-15270-00 RES M/F 0805 27K 5%
R265 036-13100-00 RES M/F 0805 100E 5%
R266 036-15220-00 RES M/F 0805 22K 5%
R267 036-16330-00 RES M/F 0805 330K 5%
R269 036-14220-00 RES M/F 0805 2K2 5%
R271 036-16100-00 RES M/F 0805 100K 5%
R272 036-15470-00 RES M/F 0805 47K 5%
R273 036-15150-00 RES M/F 0805 15K 5%
R275 036-13100-00 RES M/F 0805 100E 5%
R277 036-14560-00 RES M/F 0805 5K6 5%
R278 036-16220-00 RES M/F 0805 220K 5%
R280 036-16100-00 RES M/F 0805 100K 5%
R281 036-14470-00 RES M/F 0805 4K7 5%
R282 036-16100-00 RES M/F 0805 100K 5%
R284 036-13100-00 RES M/F 0805 100E 5%
R285 036-15470-00 RES M/F 0805 47K 5%
R287 036-15100-00 RES M/F 0805 10K 5%
R288 036-14470-00 RES M/F 0805 4K7 5%
R289 036-14680-00 RES M/F 0805 6K8 5%
R290 036-14100-00 RES M/F 0805 1K 5%
R292 036-14680-00 RES M/F 0805 6K8 5%
R293 036-13560-00 RES M/F 0805 560E 5%
R294 036-14100-00 RES M/F 0805 1K 5%
R295 036-14680-00 RES M/F 0805 6K8 5%
R296 036-14120-00 RES M/F 0805 1K2 5%
R297 030-52100-20 RES FILM AI 10E 5% 0.4W 4X1.6
R298 036-15470-00 RES M/F 0805 47K 5%
R299 036-15470-00 RES M/F 0805 47K 5%
R302 036-12390-00 RES M/F 0805 39E 5%
R304 036-14270-00 RES M/F 0805 2K7 5%
R306 036-12100-00 RES M/F 0805 10E 5%
R308 036-12100-00 RES M/F 0805 10E 5%
R310 036-10000-00 RES M/F 0805 ZERO OHM
R312 036-14330-00 RES M/F 0805 3K3 5%
R314 036-14470-00 RES M/F 0805 4K7 5%
R316 036-12470-00 RES M/F 0805 47E 5%
R318 036-15100-00 RES M/F 0805 10K 5%
R320 036-14390-00 RES M/F 0805 3K9 5%
R322 036-14820-00 RES M/F 0805 8K2 5%
R323 036-15100-00 RES M/F 0805 10K 5%
R324 036-15220-00 RES M/F 0805 22K 5%
R326 036-15100-00 RES M/F 0805 10K 5%
R328 036-14100-00 RES M/F 0805 1K 5%
R330 036-12470-00 RES M/F 0805 47E 5%
R332 036-13330-00 RES M/F 0805 330E 5%
R334 045-03150-01 RES NTC 150E 0.5W 5MM DISC
R336 036-13470-00 RES M/F 0805 470E 5%
R338 036-14100-00 RES M/F 0805 1K 5%
R339 036-15100-00 RES M/F 0805 10K 5%
R340 036-10000-00 RES M/F 0805 ZERO OHM
R341 036-10000-00 RES M/F 0805 ZERO OHM
R342 036-16150-00 RES M/F 0805 150K 5%
&R344 10 036-15560-00 RES M/F 0805 56K 5%
&R344 13 036-15560-00 RES M/F 0805 56K 5%
&R344 15 036-15820-00 RES M/F 0805 82K 5%
&R344 20 036-15560-00 RES M/F 0805 56K 5%
&R344 23 036-15560-00 RES M/F 0805 56K 5%
&R344 25 036-15820-00 RES M/F 0805 82K 5%
&R344 30 036-15560-00 RES M/F 0805 56K 5%
&R344 35 036-15820-00 RES M/F 0805 82K 5%
R346 036-12100-00 RES M/F 0805 10E 5%
R348 036-13220-00 RES M/F 0805 220E 5%
R351 036-15100-00 RES M/F 0805 10K 5%
R352 036-16390-00 RES M/F 0805 390K 5%
R354 036-17100-00 RES M/F 0805 1M 5%
R356 036-13180-00 RES M/F 0805 180E 5%
R358 036-12470-00 RES M/F 0805 47E 5%
R360 036-15150-00 RES M/F 0805 15K 5%
R362 036-14330-00 RES M/F 0805 3K3 5%
R364 036-14100-00 RES M/F 0805 1K 5%
R366 036-14330-00 RES M/F 0805 3K3 5%
R368 036-15220-00 RES M/F 0805 22K 5%
R370 036-16100-00 RES M/F 0805 100K 5%
R372 036-14270-00 RES M/F 0805 2K7 5%
R374 036-14100-00 RES M/F 0805 1K 5%
R376 036-10000-00 RES M/F 0805 ZERO OHM
R378 036-16100-00 RES M/F 0805 100K 5%
R380 036-15100-00 RES M/F 0805 10K 5%
R382 036-15470-00 RES M/F 0805 47K 5%
R384 036-15470-00 RES M/F 0805 47K 5%
R386 036-15120-00 RES M/F 0805 12K 5%
R388 036-15100-00 RES M/F 0805 10K 5%
R390 045-05100-01 RES NTC 10K 5% 5MM DISC
R392 036-10000-00 RES M/F 0805 ZERO OHM
R393 036-15100-00 RES M/F 0805 10K 5%
R394 036-12470-00 RES M/F 0805 47E 5%
R395 036-10000-00 RES M/F 0805 ZERO OHM
R396 036-13390-00 RES M/F 0805 390E 5%
R397 036-13820-00 RES M/F 0805 820E 5%
R398 036-14220-00 RES M/F 0805 2K2 5%
R399 045-05100-01 RES NTC 10K 5% 5MM DISC
R405 036-10000-00 RES M/F 0805 ZERO OHM
R410 036-10000-00 RES M/F 0805 ZERO OHM
R415 036-13330-00 RES M/F 0805 330E 5%
R420 036-12100-00 RES M/F 0805 10E 5%
R425 036-14100-00 RES M/F 0805 1K 5%
R430 036-13150-00 RES M/F 0805 150E 5%
R435 036-12100-00 RES M/F 0805 10E 5%
R440 036-10000-00 RES M/F 0805 ZERO OHM
R445 036-13470-00 RES M/F 0805 470E 5%
R450 036-12100-00 RES M/F 0805 10E 5%
R455 036-13470-00 RES M/F 0805 470E 5%
R460 036-13180-00 RES M/F 0805 180E 5%
R465 036-12330-00 RES M/F 0805 33E 5%
R470 036-13180-00 RES M/F 0805 180E 5%
R475 036-12470-00 RES M/F 0805 47E 5%
R510 036-14220-00 RES M/F 0805 2K2 5%
R515 036-12560-00 RES M/F 0805 56E 5%
R555 036-14100-00 RES M/F 0805 1K 5%
R615 036-13100-00 RES M/F 0805 100E 5%
R617 036-10000-00 RES M/F 0805 ZERO OHM
R619 032-31100-00 RES M/F PWR 1E0 5% 1W 12X4.5MM
R621 032-31100-00 RES M/F PWR 1E0 5% 1W 12X4.5MM
IPN 220-01396-02
M850-00
T855 PCB Information
B6.3.7
Copyright TEL 31/09/98
Ref Var IPN Description Ref Var IPN Description
R625 036-14100-00 RES M/F 0805 1K 5%
R629 032-33270-00 RES M/F PWR 270E 5% 1W 12X4.5
R633 036-14680-00 RES M/F 0805 6K8 5%
R636 036-12330-00 RES M/F 0805 33E 5%
R637 036-12330-00 RES M/F 0805 33E 5%
R641 036-14150-00 RES M/F 0805 1K5 5%
R645 036-13470-00 RES M/F 0805 470E 5%
R649 036-14470-00 RES M/F 0805 4K7 5%
R653 036-15100-00 RES M/F 0805 10K 5%
R681 036-13100-00 RES M/F 0805 100E 5%
R685 036-15150-00 RES M/F 0805 15K 5%
R689 036-12100-00 RES M/F 0805 10E 5%
R693 036-16100-00 RES M/F 0805 100K 5%
R696 036-15560-00 RES M/F 0805 56K 5%
R701 036-12220-00 RES M/F 0805 22E 5%
R702 036-17100-00 RES M/F 0805 1M 5%
R703 036-17100-00 RES M/F 0805 1M 5%
R706 036-15150-00 RES M/F 0805 15K 5%
R707 036-15470-00 RES M/F 0805 47K 5%
R708 036-13100-00 RES M/F 0805 100E 5%
R709 036-13100-00 RES M/F 0805 100E 5%
R710 036-13100-00 RES M/F 0805 100E 5%
R711 036-13100-00 RES M/F 0805 100E 5%
R712 036-12100-00 RES M/F 0805 10E 5%
R742 036-13150-00 RES M/F 0805 150E 5%
R743 036-13150-00 RES M/F 0805 150E 5%
R744 036-12220-00 RES M/F 0805 22E 5%
R746 036-12220-00 RES M/F 0805 22E 5%
R747 036-12220-00 RES M/F 0805 22E 5%
R748 036-15470-00 RES M/F 0805 47K 5%
R749 036-15470-00 RES M/F 0805 47K 5%
R750 036-12220-00 RES M/F 0805 22E 5%
R752 036-12220-00 RES M/F 0805 22E 5%
R753 036-17100-00 RES M/F 0805 1M 5%
R754 036-14100-00 RES M/F 0805 1K 5%
R756 036-16470-00 RES M/F 0805 470K 5%
R757 036-16470-00 RES M/F 0805 470K 5%
R758 036-14120-00 RES M/F 0805 1K2 5%
R759 036-13330-00 RES M/F 0805 330E 5%
R760 036-13180-00 RES M/F 0805 180E 5%
R762 036-13100-00 RES M/F 0805 100E 5%
R763 036-13100-00 RES M/F 0805 100E 5%
R765 036-13680-00 RES M/F 0805 680E 5%
R766 036-14100-00 RES M/F 0805 1K 5%
R767 036-13680-00 RES M/F 0805 680E 5%
R769 036-13180-00 RES M/F 0805 180E 5%
R771 036-14820-00 RES M/F 0805 8K2 5%
R772 036-15220-00 RES M/F 0805 22K 5%
R774 036-14820-00 RES M/F 0805 8K2 5%
R775 036-15180-00 RES M/F 0805 18K 5%
R780 036-12680-00 RES M/F 0805 68E 5%
R782 036-12180-00 RES M/F 0805 18E 5%
R784 036-13120-00 RES M/F 0805 120E 5%
R785 036-14330-00 RES M/F 0805 3K3 5%
R786 036-12100-00 RES M/F 0805 10E 5%
R787 036-12100-00 RES M/F 0805 10E 5%
R790 036-13390-00 RES M/F 0805 390E 5%
R791 036-14100-00 RES M/F 0805 1K 5%
R804 036-15470-00 RES M/F 0805 47K 5%
R805 036-13470-00 RES M/F 0805 470E 5%
R808 036-12100-00 RES M/F 0805 10E 5%
R809 036-14470-00 RES M/F 0805 4K7 5%
R810 036-14470-00 RES M/F 0805 4K7 5%
R811 036-14470-00 RES M/F 0805 4K7 5%
R812 036-14470-00 RES M/F 0805 4K7 5%
R813 036-14470-00 RES M/F 0805 4K7 5%
R815 036-15470-00 RES M/F 0805 47K 5%
R816 036-16150-00 RES M/F 0805 150K 5%
R818 036-14470-00 RES M/F 0805 4K7 5%
R819 036-14470-00 RES M/F 0805 4K7 5%
R820 036-15470-00 RES M/F 0805 47K 5%
R821 036-15470-00 RES M/F 0805 47K 5%
R822 036-15470-00 RES M/F 0805 47K 5%
R823 036-15470-00 RES M/F 0805 47K 5%
R824 036-14220-00 RES M/F 0805 2K2 5%
R825 036-14220-00 RES M/F 0805 2K2 5%
R826 036-14220-00 RES M/F 0805 2K2 5%
R827 036-14220-00 RES M/F 0805 2K2 5%
R828 036-14220-00 RES M/F 0805 2K2 5%
R829 036-14220-00 RES M/F 0805 2K2 5%
R830 036-14220-00 RES M/F 0805 2K2 5%
R831 036-14220-00 RES M/F 0805 2K2 5%
R832 036-14220-00 RES M/F 0805 2K2 5%
R833 036-14220-00 RES M/F 0805 2K2 5%
R835 036-14220-00 RES M/F 0805 2K2 5%
R836 036-14220-00 RES M/F 0805 2K2 5%
R837 036-14220-00 RES M/F 0805 2K2 5%
R840 036-14220-00 RES M/F 0805 2K2 5%
R841 036-14220-00 RES M/F 0805 2K2 5%
R842 036-14220-00 RES M/F 0805 2K2 5%
R843 036-14220-00 RES M/F 0805 2K2 5%
R844 036-15470-00 RES M/F 0805 47K 5%
R845 036-16150-00 RES M/F 0805 150K 5%
R846 036-14470-00 RES M/F 0805 4K7 5%
R847 036-14470-00 RES M/F 0805 4K7 5%
R848 036-13470-00 RES M/F 0805 470E 5%
R849 036-13470-00 RES M/F 0805 470E 5%
R850 036-13470-00 RES M/F 0805 470E 5%
R851 036-13470-00 RES M/F 0805 470E 5%
R852 036-14470-00 RES M/F 0805 4K7 5%
R853 036-13470-00 RES M/F 0805 470E 5%
R854 036-16330-00 RES M/F 0805 330K 5%
R855 036-15470-00 RES M/F 0805 47K 5%
R856 036-16150-00 RES M/F 0805 150K 5%
R857 036-16150-00 RES M/F 0805 150K 5%
R858 036-15270-10 RES M/F 0805 27K 1%
R859 036-17120-10 RES MF 0805 CHIP 1M2 1%
R860 036-16820-10 RES MF 0805 CHIP 820K 1%
R861 036-14510-10 RES MF 0805 CHIP 5K1 1%
R863 036-14470-00 RES M/F 0805 4K7 5%
R865 036-14270-00 RES M/F 0805 2K7 5%
R866 036-16820-00 RES M/F 0805 820K 5%
R867 036-16820-00 RES M/F 0805 820K 5%
R868 036-14470-00 RES M/F 0805 4K7 5%
R869 036-15270-10 RES M/F 0805 27K 1%
R870 036-17120-10 RES MF 0805 CHIP 1M2 1%
R871 036-16820-10 RES MF 0805 CHIP 820K 1%
R872 036-14510-10 RES MF 0805 CHIP 5K1 1%
R873 036-14220-00 RES M/F 0805 2K2 5%
R875 036-14470-00 RES M/F 0805 4K7 5%
R876 036-16100-00 RES M/F 0805 100K 5%
R877 036-16100-00 RES M/F 0805 100K 5%
R878 036-16100-00 RES M/F 0805 100K 5%
R879 036-16100-00 RES M/F 0805 100K 5%
R881 036-15470-00 RES M/F 0805 47K 5%
R882 036-15470-00 RES M/F 0805 47K 5%
R884 036-16150-00 RES M/F 0805 150K 5%
R885 036-16150-00 RES M/F 0805 150K 5%
R886 036-15100-10 RES M/F 0805 10K 1%
R887 036-14100-10 RES M/F 0805 CHIP 1K 1%
R888 036-14820-10 RES M/F 0805 8K2 1%
R889 036-16100-00 RES M/F 0805 100K 5%
R890 036-16150-00 RES M/F 0805 150K 5%
R891 036-16100-00 RES M/F 0805 100K 5%
R892 036-16330-00 RES M/F 0805 330K 5%
R894 036-14470-00 RES M/F 0805 4K7 5%
R895 036-15100-00 RES M/F 0805 10K 5%
R897 036-15100-00 RES M/F 0805 10K 5%
R898 036-16470-00 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
RV210 040-05100-23 POT 10K LOG PCB 15MM SLOT SFT
RV220 042-05100-06 RES PRE 10K CAR 6MM FLAT
RV230 040-05100-21 POT 10K LIN PCB 15MM SLOT SFT
RV235 042-05100-06 RES PRE 10K CAR 6MM FLAT
RV310 042-04220-06 RES PRE 2K2 CAR 6MM FLAT
RV320 042-04220-06 RES PRE 2K2 CAR 6MM FLAT
SHLD610 062-00010-13 CAN 10MM SQ X 11MM CAN A4M1017
SK320 240-04020-64 SKT JACK 0.98MM PCB MTG 64 WAY
SK330 240-04020-64 SKT JACK 0.98MM PCB MTG 64 WAY
SK501 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK502 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK503 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK504 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK505 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK513 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK522 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK531 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK532 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK533 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK534 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK535 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK805 240-10000-07 CONN SMD SKT 16W 2R M-MATCH
SK810 240-04020-42 SKT 44 PIN SMD PLCC
SW201 230-00010-30 SWITCH TOG SPDT R-ANG PCB MTG
T210 053-00010-17 XFMR T4030 LINE MATCH POTCORE
T610 050-00016-50 COIL TAIT NO 650 455KHZ
&XF300A 10 276-00010-58 FLTR XTAL 45MHZ 15K 4POLE 1PR
&XF300A 13 276-00010-58 FLTR XTAL 45MHZ 15K 4POLE 1PR
&XF300A 15 276-00010-57 FLTR XTAL 45MHZ 7.5K 4POLE 1PR
&XF300A 20 276-00010-58 FLTR XTAL 45MHZ 15K 4POLE 1PR
&XF300A 23 276-00010-58 FLTR XTAL 45MHZ 15K 4POLE 1PR
&XF300A 25 276-00010-57 FLTR XTAL 45MHZ 7.5K 4POLE 1PR
&XF300A 30 276-00010-58 FLTR XTAL 45MHZ 15K 4POLE 1PR
&XF300A 35 276-00010-57 FLTR XTAL 45MHZ 7.5K 4POLE 1PR
&XF300B 10 276-00010-58 FLTR XTAL 45MHZ 15K 4POLE 1PR
&XF300B 13 276-00010-58 FLTR XTAL 45MHZ 15K 4POLE 1PR
&XF300B 15 276-00010-57 FLTR XTAL 45MHZ 7.5K 4POLE 1PR
&XF300B 20 276-00010-58 FLTR XTAL 45MHZ 15K 4POLE 1PR
&XF300B 23 276-00010-58 FLTR XTAL 45MHZ 15K 4POLE 1PR
&XF300B 25 276-00010-57 FLTR XTAL 45MHZ 7.5K 4POLE 1PR
&XF300B 30 276-00010-58 FLTR XTAL 45MHZ 15K 4POLE 1PR
&XF300B 35 276-00010-57 FLTR XTAL 45MHZ 7.5K 4POLE 1PR
&XF301 10 276-00010-56 FLTR XTAL 45MHZ 14KHZ BW 2 P
&XF301 13 276-00010-56 FLTR XTAL 45MHZ 14KHZ BW 2 P
&XF301 15 276-00010-54 FLTR XTAL 45MHZ 7.5KHZ 2POLE
&XF301 20 276-00010-56 FLTR XTAL 45MHZ 14KHZ BW 2 P
&XF301 23 276-00010-56 FLTR XTAL 45MHZ 14KHZ BW 2 P
IPN 220-01396-02
B6.3.8
T855 PCB Information
M850-00
31/09/98 Copyright TEL
Ref Var IPN Description Ref Var IPN Description
&XF301 25 276-00010-54 FLTR XTAL 45MHZ 7.5KHZ 2POLE
&XF301 30 276-00010-56 FLTR XTAL 45MHZ 14KHZ BW 2 P
&XF301 35 276-00010-54 FLTR XTAL 45MHZ 7.5KHZ 2POLE
&XF302 10 276-00010-14 FLTR CER 455KHZ 15KHZ B/W
&XF302 13 276-00010-76 FLTR CER 455KHZ 12KHZ B/W
&XF302 15 276-00010-13 FLTR CER 455KHZ 9KHZ B/W
&XF302 20 276-00010-14 FLTR CER 455KHZ 15KHZ B/W
&XF302 23 276-00010-76 FLTR CER 455KHZ 12KHZ B/W
&XF302 25 276-00010-13 FLTR CER 455KHZ 9KHZ B/W
&XF302 30 276-00010-14 FLTR CER 455KHZ 15KHZ B/W
&XF302 35 276-00010-13 FLTR CER 455KHZ 9KHZ B/W
X310 274-00010-22 XTAL 44.545MHZ TE/22 HC45/U
IPN 220-01396-02
B6.3.10
T855 PCB Information
M850-00
31/09/98 Copyright TEL
IPN Legend Description IPN Legend Description
T855 Mechanical & Miscellaneous Parts (220-01396-02)
066-00010-20 1 SLUG BRASS A4M764 HELIC RESNTR
070-01001-00 15/28 D-RANGE 15 WAY COMPL T800
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
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 SERIES II
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
365-00100-20 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 SERIES II
410-01082-01 CRTN 10 T800 KIWI 423X410X360
IPN 220-01396-02
M850-00
T855 PCB Information
B6.3.13
Copyright TEL 31/09/98
Device PCB Circuit Device PCB CircuitDevice PCB Circuit Device PCB Circuit
T855 Grid Reference Index (IPN 220-01396-02)
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 charac-
ters 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.
C201 1:D7 2-B9
&C203 2:C6 2-B8
&C205 2:C6 2-B8
C207 1:D6 2-C8
C209 1:C7 2-E8
C210 2:C7 2-C7
C211 2:C7 2-D7
C213 2:C7 2-E7
C215 2:C7 2-E7
C217 2:C7 2-E7
C219 2:C6 2-H6
C221 2:C6 2-H6
C222 1:C6 2-J9
C223 2:C6 2-J8
C225 2:C6 2-J8
C227 2:C6 2-J8
C229 1:C6 2-K8
C231 1:B3 2-K8
C233 1:B7 2-J7
C235 2:C5 2-M6
C237 2:C6 2-M5
C238 2:C5 2-N7
C239 1:C5 2-P6
C240A 2:B5 2-Q8
C240B 2:B5 2-R8
C240C 1:C5 2-R8
C249 1:B5 2-Q7
C251 2:A5 2-R7
C253 1:C8 2-G5
C255 2:B7 2-L2
C257 2:B6 2-M2
C259 2:B6 2-M3
C260A 2:B6 2-P4
C260B 2:B6 2-P4
C260C 1:B6 2-P4
C261 1:C6 2-N2
C262 1:B5 2-P3
C264 2:B5 2-P2
C266 1:D2 2-R3
C268 1:D3 2-R3
C270 2:B8 2-E3
C272 2:B8 2-D1
C274 2:B8 2-E1
C276 2:C4 2-B0
C278 2:C4 2-C0
C280 2:C4 2-F1
C286 2:B8 2-F1
C302 2:F8 3-C9
C304 2:F8 3-D9
C306 2:F8 3-D8
C308 2:F8 3-E8
C310 2:F8 3-E8
C312 1:F7 3-F8
C314 2:F8 3-F8
C316 2:F9 3-F9
&C318 2:E8 3-A5
&C320 2:E8 3-B5
&C322 2:E8 3-C5
&C324 2:E7 3-E5
&C326 2:E7 3-E5
C328 2:E7 3-F5
C330 2:F7 3-F6
C332 2:E7 3-G4
&C334 2:F7 3-H5
&C336 2:E7 3-H5
&C338 2:E7 3-J5
&C340 2:E7 3-J5
C342 2:E6 3-K5
C344 2:E6 3-K6
C346 2:E6 3-M5
C348 2:E6 3-M5
C350 2:E6 3-M6
C351 2:E4 3-M6
C352 2:E4 3-N5
C353 2:F4 3-N6
C354 1:F5 3-N6
C356 2:E5 3-P6
C357 2:E5 3-Q6
C358 2:F5 3-Q6
C360 2:F4 3-R6
C362 2:E6 3-R4
C364 2:E5 3-A2
C366 2:E5 3-B2
C368 2:F5 3-C2
C370 2:E4 3-C1
C372 2:F3 3-E1
C374 2:F3 3-E3
C376 2:E3 3-E2
C378 2:F3 3-E2
C380 2:E3 3-F2
C382 1:F3 3-G3
C384 2:E4 3-H2
C386 2:E4 3-J2
C388 2:E5 3-M2
C390 1:E6 3-M2
C392 2:E4 3-N2
C394 2:F3 3-P2
C410 2:L8 4-E4
C420 2:L8 4-F5
C430 2:L8 4-G6
C440 1:M7 4-H6
C450 2:K8 4-G5
%C460 2:K8 4-H4
C470 2:G7 4-P5
C480 2:G8 4-Q5
C505 1:K6 5-L8
C515 1:H5 5-F3
C530 1:K5 5-K1
C535 1:K5 5-L1
C610A 1:M5 6-C8
C610B 1:M5 6-D8
C611A 1:L5 6-E8
C611B 1:M5 6-F8
C623 1:M6 6-N8
C625 1:M6 6-Q8
C626 1:M6 6-R8
C628 1:M6 6-R8
C630 1:M5 6-K4
C631A 1:M5 6-M6
C631B 1:N5 6-M6
C637 1:M6 6-P5
C640 1:M5 6-R5
C651 1:M5 6-M4
C658 1:M5 6-J1
C660 1:L5 6-K1
C665 1:L5 6-K1
C670 1:L6 6-L1
C673 1:L5 6-P2
C677 1:M6 6-P1
C681 1:M5 6-R3
C684 1:M6 6-R3
C687 1:L6 6-Q1
C690 1:L6 6-R1
C693 1:L6 6-R1
C700 1:J4 7-A8
C702 1:J4 7-B8
C703 1:J3 7-B7
C705 1:J3 7-B7
C707 1:J3 7-B5
C708 1:J3 7-B5
C709 1:H3 7-C5
C710A 1:H3 7-D8
C710B 1:H4 7-D8
C710C 1:J3 7-F8
C711 1:J2 7-E7
C712 1:H2 7-E7
C713 1:H2 7-F7
C735 1:J2 7-A1
C736 1:J2 7-B1
C740A 1:H2 7-B4
C740B 1:H2 7-B3
C741A 1:H2 7-C4
C741B 1:G2 7-C3
C742A 1:H2 7-D4
C742B 1:H3 7-D3
C743 1:H2 7-B1
C745 1:G3 7-D1
C750 1:H4 7-H7
C757 1:G4 7-G5
C759 1:G4 7-G4
C761 1:H3 7-J4
C762 1:G3 7-J4
C764 1:H3 7-J2
C765 1:G3 7-J2
C767 1:H3 7-K3
C769 1:H4 7-M4
C770 1:H3 7-N4
C772 1:G4 7-M2
C774 1:H4 7-N2
C776 1:H4 7-N1
C782 1:G2 7-N0
C784 1:G2 7-Q1
C786 1:G2 7-R1
C788 1:G3 7-P0
C791 1:G4 7-Q0
C792 1:G4 7-R0
C810 1:L4 8-K8
C812 1:K2 8-E5
C813 1:J3 8-H5
C814 1:L2 8-Q4
C815 1:N3 8-B2
C816 1:N3 8-B2
C818 1:N3 8-C1
C819 1:N3 8-D1
C820 1:N4 8-E1
C822 1:N3 8-D2
C824 1:N3 8-D2
C826 1:N3 8-D0
C828 1:N3 8-D0
C830 1:M4 8-F1
C832 1:M3 8-G2
C833 1:M4 8-G1
C834 1:M3 8-H2
C836 1:M3 8-G0
C837 1:M3 8-G0
C838 1:N4 8-H0
C840 1:M2 8-K1
C842 1:N2 8-L0
C844 1:N3 8-L0
C846 1:M2 8-M0
C848 1:N2 8-M0
C850 1:M2 8-N0
C873 1:M4 8-N2
C876 1:M4 8-P2
C879 1:M3 8-Q0
C910 2:P6 9-E6
C920 2:P6 9-F6
C930 2:P7 9-G6
C940 2:P7 9-H6
C950 2:N8 9-J6
D111 1:P4 1-R1
D220 2:D8 2-E4
D220 2:D8 2-E4
D230 2:C6 2-J4
D230 2:C6 2-J5
D240 2:C8 2-D2
D240 2:C8 2-D3
D250 1:B7 2-H1
D260 2:A7 2-H1
D270 2:B7 2-H1
D270 2:B7 2-J1
D280 1:B7 2-K1
D285 1:D2 2-L1
D289 1:C2 2-K0
D290 1:C2 2-L0
D295 1:C2 2-L0
D310 2:E4 3-G1
D310 2:E4 3-G2
D610 1:N5 6-L6
D610 1:N5 6-M6
D640 1:L5 6-M1
D640 1:L5 6-M2
D730 1:H3 7-H1
D740 1:H3 7-J2
D820 1:J3 8-B7
IPN 220-01396-02
B6.3.14
T855 PCB Information
M850-00
31/09/98 Copyright TEL
Device PCB Circuit Device PCB CircuitDevice PCB Circuit Device PCB Circuit
D860 1:M2 8-N0
D860 1:M2 8-N0
D880 1:M2 8-R2
D880 1:M2 8-R2
#FL410 1:M8 4-C5
#FL420 1:J8 4-K5
IC210 1:C7 2-G7
IC210 1:C7 2-C7
IC210 1:C7 2-F7
IC240 1:B5 2-P7
IC260 1:B6 2-N2
IC270 1:B8 2-F3
IC270 1:B8 2-E2
IC270 1:B8 2-B2
IC280 1:C4 2-E1
IC280 1:C4 2-B0
IC280 1:C4 2-D0
IC310 1:E5 3-Q5
IC310 1:E5 3-N5
IC310 1:E5 3-C2
IC320 1:F3 3-N2
IC410 1:G7 4-P5
IC610 1:M5 6-D8
IC630 1:N5 6-K5
IC640 1:M5 6-N5
IC640 1:M5 6-J0
IC640 1:M5 6-Q5
IC650 1:L5 6-E5
=IC700 1:J3 7-A8
IC710 1:H3 7-D7
IC710 1:H3 7-J0
IC710 1:H3 7-C6
IC710 1:H3 7-D6
IC710 1:H3 7-D6
IC710 1:H3 7-C6
IC710 1:H3 7-E8
IC740 1:H2 7-D1
IC750 1:H4 7-M3
IC750 1:H4 7-H6
IC750 1:H4 7-H5
IC820 1:L4 8-N5
IC830 1:N4 8-J0
IC830 1:N4 8-F1
IC830 1:N4 8-F0
IC830 1:N4 8-H2
IC830 1:N4 8-E2
IC840 1:M2 8-L0
IC850 1:M3 8-N1
IC850 1:M3 8-Q2
IC850 1:M3 8-M2
IC850 1:M3 8-M2
IC850 1:M3 8-M0
L230 1:D2 2-K2
L310 1:F8 3-D9
L320 1:F8 3-E8
L330 1:E8 3-B5
L340 1:E8 3-C5
L350 1:E7 3-E5
L360 1:F6 3-G5
L370 1:E7 3-J5
L380 1:E6 3-L6
L385 1:E4 3-N6
L390 1:F5 3-Q6
L410 2:L9 4-F5
L420 1:M7 4-F6
L430 2:K8 4-H5
L440 1:G8 4-Q5
L740 1:G3 7-Q0
L910 1:P6 9-E7
L920 1:P6 9-F7
L930 1:P7 9-G7
L940 1:P8 9-H7
P100 1:Q6 1-R8
P160 1:P2 1-Q4
P170 1:P2 1-R4
P201 1:D4 2-A9
P204 1:D7 2-A9
P207 1:D6 2-A8
P210 1:D6 2-C7
P213 1:D3 2-A7
P216 1:B2 2-A7
P219 1:D7 2-A7
P222 1:C5 2-A6
P225 1:C8 2-A4
P228 1:D8 2-A4
P231 1:C7 2-A4
P234 1:B7 2-A3
P236 1:C8 2-A1
P238 1:D3 2-A1
P240 1:C8 2-G2
P242 1:C7 2-G1
P244 1:C7 2-G8
P246 1:C6 2-H9
P248 1:C6 2-H9
P250 1:B3 2-K8
P252 1:B2 2-L9
P254 1:B2 2-L9
P256 1:B2 2-L8
P258 1:D3 2-P8
P260 1:D3 2-P7
P263 1:B2 2-R6
P266 1:D2 2-R5
P268 1:B2 2-R5
P270 1:B2 2-R5
P280 1:B2 2-R4
P282 1:B2 2-R4
P284 1:B3 2-R4
P287 1:B2 2-R0
P810 1:K2 8-A5
P815 1:L4 8-C4
P820 1:K4 8-M8
P825 1:K4 8-M8
P830 1:K4 8-M8
P835 1:K4 8-M7
P840 1:K4 8-M7
PL100 1:P3 1-F0
PL210 1:C6 2-B8
PL220 1:C6 2-H7
PL230 1:B2 2-L8
PL240 1:B6 2-K7
PL250 1:C8 2-C2
PL260 1:C8 2-H3
PL270 1:C2 2-L1
Q210 2:C6 2-J8
Q220 2:C5 2-M6
Q230 2:C5 2-N6
Q240 2:C8 2-H4
Q245 2:B6 2-J4
Q250 2:B8 2-G2
Q255 2:B7 2-H2
Q260 2:B7 2-K0
Q270 2:C2 2-K0
Q280 2:B7 2-L2
Q290 2:B6 2-M2
Q310 1:F9 3-D9
Q320 2:F7 3-F5
Q330 2:E6 3-L5
Q340 2:E5 3-Q5
Q350 2:F4 3-D2
Q360 2:E3 3-F2
Q410 2:L8 4-G5
Q540 1:K5 5-K2
Q620 1:N6 6-P8
Q630 1:M6 6-P5
Q660 1:L5 6-N1
Q670 1:L6 6-Q2
Q750 1:G4 7-G3
Q760 1:G3 7-H3
Q770 1:H3 7-H1
Q775 1:H3 7-K3
Q780 1:H3 7-K3
Q785 1:H3 7-K2
Q790 1:H4 7-L3
Q795 1:G3 7-P0
Q810 1:K2 8-C5
Q820 1:K2 8-C6
Q840 1:K2 8-F5
Q850 1:L2 8-G5
Q860 1:K4 8-B4
Q870 1:L4 8-C4
Q880 1:L2 8-L5
Q890 1:L4 8-K3
Q895 1:M3 8-P2
R160 1:P2 1-Q4
R201 2:D6 2-B8
&R202 2:D6 2-B7
R204 2:C6 2-C9
R205 2:C7 2-C8
R207 2:C7 2-D8
&R209 2:C7 2-D8
R210 2:C7 2-D8
R211 2:C7 2-E8
R213 2:C7 2-G6
R215 2:C6 2-G9
R218 2:C7 2-G8
&R219 2:C7 2-G7
R221 2:C7 2-H7
R222 2:C7 2-H7
%R223 2:D6 2-J9
R224 2:C6 2-J8
R225 2:C6 2-J8
R227 2:B7 2-J7
R229 2:C5 2-L6
R230 2:C6 2-M5
R232 2:B5 2-M7
R233 2:C5 2-M7
R234 2:C5 2-N7
R236 2:B5 2-N7
R238 2:A5 2-R6
R239 2:B5 2-R7
R241 2:D8 2-F5
R242 2:C8 2-F4
R244 2:C8 2-G4
R245 2:C8 2-G5
R247 2:B7 2-J4
R249 2:B6 2-J3
R251 2:B7 2-L3
R252 2:B7 2-L3
R254 2:B7 2-L3
R255 2:B7 2-M3
R256 2:B6 2-M3
R258 2:B6 2-N3
R260 2:B5 2-P2
R261 2:B4 2-Q3
R262 2:B3 2-Q3
R264 2:B8 2-A3
R265 2:B8 2-A2
R266 2:B8 2-B2
R267 2:C8 2-C3
R269 2:C8 2-B1
R271 2:D3 2-A0
R272 2:C4 2-B1
R273 2:C4 2-C1
R275 2:C4 2-C1
R277 2:C4 2-C0
R278 2:C4 2-C1
R280 2:C8 2-D3
R281 2:C8 2-D2
R282 2:B8 2-E2
R284 2:C8 2-F3
R285 2:B8 2-F2
R287 2:B8 2-F2
R288 2:B8 2-F1
R289 2:B7 2-G3
R290 2:B7 2-G3
R292 2:C8 2-G2
R293 2:B7 2-H1
R294 2:C3 2-H0
R295 2:B7 2-J1
R296 2:A7 2-K1
R297 1:B2 2-M0
R298 2:D7 2-J0
R299 2:C7 2-J0
R302 2:F8 3-D8
R304 2:F8 3-E9
R306 2:F8 3-F8
R308 2:F7 3-F8
R310 2:E9 3-A5
R312 2:F7 3-F5
R314 2:E7 3-F4
R316 2:F7 3-G6
R318 2:F7 3-G5
R320 2:F7 3-H5
R322 2:E7 3-K5
R323 2:E6 3-K5
R324 2:E6 3-L5
R326 2:E6 3-L6
R328 2:E6 3-M6
R330 2:E6 3-M6
R332 2:E6 3-L5
R334 1:E6 3-M4
R336 2:E6 3-M4
R338 2:F4 3-N6
R339 2:E5 3-N5
R340 2:F5 3-P5
R341 2:F5 3-Q5
R342 2:E5 3-Q6
&R344 2:F5 3-R6
R346 2:F5 3-R7
R348 2:E6 3-R5
%R349 2:E6 3-R4
R350 2:E5 3-A2
R351 2:E6 3-A2
R352 2:E5 3-B2
R354 2:E5 3-B2
R356 2:F4 3-C2
R358 2:F3 3-D3
R360 2:F3 3-D2
R362 2:E4 3-D1
R364 2:F3 3-D1
R366 2:F3 3-D2
R368 2:E4 3-E1
R370 2:E3 3-E2
R372 2:E3 3-F3
R374 2:E4 3-G2
R376 2:E4 3-F1
R378 2:E3 3-G3
R380 2:E4 3-G2
R382 2:E4 3-H2
R384 2:E4 3-H2
R386 2:E5 3-L3
R388 2:E5 3-L3
R390 1:E5 3-L2
R392 2:E5 3-L2
R393 2:E5 3-Q3
R394 2:E5 3-M2
R395 2:F3 3-N2
R396 2:E3 3-P2
R397 2:E3 3-Q2
R398 2:E3 3-Q1
R399 1:E3 3-P1
R405 2:N8 4-B5
R410 2:L8 4-E5
R415 2:L8 4-F4
R420 2:L8 4-G4
R425 2:L8 4-G5
R430 2:L8 4-G6
IPN 220-01396-02
M850-00
T855 PCB Information
B6.3.15
Copyright TEL 31/09/98
Device PCB Circuit Device PCB Circuit Device PCB CircuitDevice PCB Circuit
R435 2:M7 4-G6
R440 2:K8 4-J5
R445 2:H8 4-N4
R450 2:H8 4-N5
R455 2:H8 4-N4
R460 2:G7 4-P6
R465 2:G7 4-P6
R470 2:G7 4-P6
R475 2:G7 4-P4
R510 1:K6 5-J9
R515 1:H6 5-J5
R555 1:K5 5-K1
R615 1:M5 6-C9
R617 1:M5 6-F8
R619 1:M6 6-L8
R621 1:M6 6-L8
R625 1:N6 6-L7
R629 1:M5 6-P6
R633 1:M5 6-Q8
R636 1:N5 6-K6
R637 1:N5 6-K5
R641 1:N5 6-L4
R645 1:N5 6-L5
R649 1:M5 6-M5
R653 1:M5 6-Q4
R681 1:L5 6-L2
R685 1:L5 6-N2
R689 1:L6 6-Q3
R693 1:L6 6-Q1
R696 1:L6 6-Q1
R701 1:J4 7-A9
R702 1:J4 7-C9
R703 1:J4 7-C8
R706 1:J3 7-B6
R707 1:J3 7-C7
R708 1:J2 7-D7
R709 1:H2 7-E7
R710 1:J3 7-B6
R711 1:H3 7-B6
R712 1:J4 7-E9
R742 1:H2 7-B4
R743 1:H2 7-C5
R744 1:G2 7-D4
R746 1:H3 7-E4
R747 1:H3 7-E5
R748 1:J2 7-A1
R749 1:J2 7-B1
R750 1:H4 7-H7
R752 1:G4 7-F5
R753 1:G4 7-F3
R754 1:G3 7-F3
R756 1:G3 7-G5
R757 1:G4 7-H4
R758 1:H3 7-H4
R759 1:H3 7-J4
R760 1:H3 7-K4
R762 1:H3 7-K4
R763 1:H4 7-L4
R765 1:H3 7-H2
R766 1:G3 7-J3
R767 1:H3 7-K2
R769 1:H3 7-K3
R771 1:H4 7-L3
R772 1:G4 7-L2
R774 1:H4 7-L2
R775 1:H4 7-N2
R780 1:G2 7-P1
R782 1:G3 7-P0
R784 1:G3 7-P1
R785 1:G3 7-Q1
R786 1:G2 7-R1
R787 1:G2 7-R1
R790 1:G3 7-P0
R791 1:G3 7-Q0
R804 1:J3 8-C7
R805 1:J3 8-C7
R808 1:K2 8-B6
R809 1:K2 8-C6
R810 1:L2 8-D6
R811 1:L2 8-D6
R812 1:K2 8-C6
R813 1:K2 8-C5
R815 1:K2 8-E4
R816 1:K2 8-F4
R818 1:K2 8-F5
R819 1:L2 8-F5
R820 1:K4 8-B4
R821 1:L4 8-C4
R822 1:L4 8-D3
R823 1:L4 8-D4
R824 1:K4 8-L8
R825 1:K4 8-L8
R826 1:K4 8-L8
R827 1:K4 8-L7
R828 1:K4 8-L7
R829 1:K4 8-P9
R830 1:K3 8-P9
R831 1:K3 8-P9
R832 1:K3 8-P8
R833 1:K3 8-P8
R835 1:K3 8-P8
R836 1:K3 8-P8
R837 1:K3 8-P7
R840 1:K3 8-P7
R841 1:K3 8-P7
R842 1:K3 8-P6
R843 1:K3 8-P6
R844 1:L2 8-M5
R845 1:L2 8-M5
R846 1:L4 8-L6
R847 1:L4 8-M6
R848 1:L4 8-Q5
R849 1:J2 8-Q5
R850 1:J2 8-Q4
R851 1:L4 8-Q4
R852 1:L2 8-N4
R853 1:L2 8-Q4
R854 1:N3 8-C1
R855 1:N3 8-C2
R856 1:N3 8-D2
R857 1:N4 8-D2
R858 1:N3 8-C0
R859 1:N3 8-D0
R860 1:N3 8-E0
R861 1:M3 8-F0
R863 1:N3 8-F2
R865 1:M3 8-G2
R866 1:M3 8-H2
R867 1:M3 8-G1
R868 1:N4 8-G0
R869 1:M3 8-G0
R870 1:M3 8-H0
R871 1:N3 8-H0
R872 1:N4 8-H0
R873 1:N4 8-K0
R875 1:M4 8-J1
R876 1:M3 8-K1
R877 1:M2 8-K1
R878 1:M2 8-K0
R879 1:M2 8-K0
R881 1:M4 8-K2
R882 1:M4 8-L3
R884 1:M3 8-N3
R885 1:M3 8-N2
R886 1:M3 8-P3
R887 1:M3 8-P3
R888 1:M3 8-P2
R889 1:M3 8-M1
R890 1:M3 8-N1
R891 1:M2 8-M1
R892 1:M2 8-N0
R894 1:M2 8-P0
R895 1:M2 8-Q1
R897 1:M2 8-Q1
R898 1:M2 8-Q2
RL210 1:C2 2-P4
RL210 1:C2 2-K1
RL210 1:C2 2-P5
RV205 1:B5 2-M7
RV210 1:B7 2-K3
RV220 1:D7 2-F5
RV230 1:B8 2-A2
RV235 1:C4 2-C0
RV310 1:F4 3-E1
RV320 1:E3 3-Q2
SHLD610 1:L6 6-J3
SK320 1:E5 3-L1
SK330 1:E3 3-Q1
SK501 1:G6 5-D6
SK502 1:G6 5-D5
SK503 1:G6 5-D4
SK504 1:G5 5-D3
SK505 1:G5 5-D2
SK513 1:H5 5-G3
SK522 1:H6 5-K5
SK531 1:K6 5-N6
SK532 1:K5 5-N5
SK533 1:K5 5-N4
SK534 1:K5 5-N3
SK535 1:K5 5-N2
SK805 1:K3 8-Q9
SK805 1:K3 8-Q9
SK805 1:K3 8-Q7
SK805 1:K3 8-Q8
SK805 1:K3 8-Q6
SK805 1:K3 8-Q8
SK805 1:K3 8-Q6
SK805 1:K3 8-Q8
SK805 1:K3 8-Q7
SK805 1:K3 8-Q8
SK805 1:K3 8-Q7
SK805 1:K3 8-Q5
SK805 1:K3 8-Q7
SK805 1:K3 8-Q6
SK805 1:K3 8-Q9
SK805 1:K3 8-Q6
SK810 1:L3 8-H5
SL210 2:B8 2-E2
SL220 2:B8 2-D2
SW201 1:B4 2-A6
T210 1:C3 2-Q2
T610 1:L6 6-N2
TP201 1:D3 2-P8
TP202 1:D7 2-D9
TP309 1:E9 3-A5
TP310 1:E7 3-E5
TP311 1:E4 3-M6
TP313 1:E4 3-J2
TP314 1:E5 3-R5
TP408 2:N8 4-B5
TP409 2:L7 4-D5
TP410 2:J8 4-J5
TP411 2:H8 4-M5
TP412 1:G8 4-Q5
TP601 1:N5 6-K9
TP602 1:L6 6-R9
TP603 1:L5 6-J2
TP604 1:L4 6-N6
TP607 1:L4 6-F9
TP710 1:H4 7-J5
X310 1:F4 3-N6
&XF300A 1:E8 3-C5
&XF300B 1:E8 3-D5
&XF301 1:E7 3-H5
&XF302 1:F5 3-P5
M850-00
CI
Copyright TEL 31/09/98
Part C T856 Transmitter & T857 Exciter
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 & Adjustment
4 Functional Testing
5 Fault Finding
6 PCB Information
M850-00
T856/857 General Information
C1.1
Copyright TEL 31/09/98
1 T856/857 General Information
This section provides a brief description of the T856 transmitter and T857 exciter, along
with detailed specifications and a list of types available.
The following topics are covered in this section.
Section Title Page
1.1 Introduction 1.7
1.2
1.2.1
1.2.2
1.2.3
1.2.4
1.2.4.1
1.2.4.2
1.2.4.3
1.2.5
1.2.6
1.2.6.1
1.2.6.2
1.2.6.3
Specifications
Introduction
General
RF Section
Audio Processor
Inputs
Modulation Characteristics
CTCSS
Microcontroller
Test Standards
European Telecommunication Standard
DTI CEPT Recommendation T/R-24-01
Telecommunications Industry Association
1.8
1.8
1.8
1.9
1.10
1.10
1.11
1.11
1.11
1.12
1.12
1.12
1.12
1.3 Product Codes 1.13
1.4 T856 Standard Product Range 1.14
1.5 T857 Standard Product Range 1.15
Figure Title Page
1.1 T856 Main Circuit Block Identification 1.4
1.2 T856 Front Panel Controls 1.4
1.3 T857 Main Circuit Block Identification 1.6
1.4 T857 Front Panel Controls 1.6
M850-00
T856/857 General Information
C1.7
Copyright TEL 31/09/98
1.1 Introduction
The T856 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 fre-
quency synthesiser which provides 100mW of frequency modulated RF drive to a two
stage, wide band output driver followed by a 25W power amplifier. A thermal shut-
down feature is provided in the T856 in case operating temperatures exceed acceptable
levels.
The T857 is a synthesised, microprocessor controlled FM base station exciter designed
for single or multichannel operation in the 400 to 520MHz frequency range1. With a
standard power output of only 1W, the exciter is designed for use with the T858 50W or
T859 100W power amplifiers. The RF section of the exciter comprises a frequency syn-
thesiser which provides 100mW of frequency modulated RF drive to a two stage, wide
band output amplifier.
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 sec-
tion of circuitry. Access to both sides of the main circuit board is obtained by removing
each of the chassis lids. 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.
The T856 and T857 are both 60mm wide and each occupies a single space in a Tait rack
frame, which has the ability to accommodate up to seven standard modules.
1. Although capable of operating over the 400-520MHz frequency range, the T856 and
T857 have an 8MHz switching range (see Section 1.2.3 and Section 3.1).
C1.8
T856/857 General Information
M850-00
31/09/98 Copyright TEL
1.2 Specifications
1.2.1 Introduction
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 (13.8V DC).
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 parame-
ters for which performance according to the CEPT specification is given. Refer to Sec-
tion 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.
1.2.2 General
Number Of Channels .. 128 (standard)1
Supply Voltage:
Operating Voltage .. 10.8 to 16V DC
Standard Test Voltage .. 13.8V DC
Polarity .. negative earth only
Polarity Protection .. diode
Supply Current:
Transmit - T856 .. 5.5A (typical)
- T857 .. 750mA
Standby .. 150mA (typical)
Operating Temperature Range .. -20°C to +60°C
Channel Spacing Modulation
100% Deviation Receiver
IF Bandwidth
Wide Bandwidth 25kHz ±5.0kHz 15.0kHz
Mid Bandwidth 20kHz ±4.0kHz 12.0kHz
Narrow Bandwidth 12.5kHz ±2.5kHz 7.5kHz
1. Additional channels may be factory programmed. Contact your nearest Tait Dealer or
Customer Service Organisation.
M850-00
T856/857 General Information
C1.9
Copyright TEL 31/09/98
Dimensions:
Height .. 183mm
Width .. 60mm
Length .. 320mm
Weight .. 2.1kg
Time-Out Timer (optional) .. 0 to 5 minutes adjustable in 10 second
steps
Tail Timer .. 0 to 5 seconds adjustable in 100ms
steps
Transmit Key Time .. <30ms
Transmit Lockout Timer .. 0 to 1 minute adjustable in 10 second
steps
1.2.3 RF Section
Frequency Range .. 400-520MHz (refer to Section 1.4 and
Section 1.5)
Modulation Type .. FM
Frequency Increment .. 5 or 6.25kHz
Switching Range .. 8MHz (i.e. ±4MHz from the centre
frequency)
Load Impedance .. 50 ohms
Frequency Stability .. ±1ppm, -20°C to +60°C
(see also Section 1.4 and Section 1.5)
Adjacent Channel Power (full deviation):
Wide Bandwidth (WB) .. -75dBc
(±25kHz/15kHz B/W)
Mid Bandwidth (MB) .. -70dBc
(±20kHz/12kHz B/W)
Narrow Bandwidth (NB) .. -65dBc
(±12.5kHz/7.5kHz B/W)
(Transmitter switching must comply with ETS 300 113)
Transmitter Side Band Noise:
(no modulation, 15kHz bandwidth)
At ±25kHz .. -95dBc
At ±1MHz .. -105dBc
C1.10
T856/857 General Information
M850-00
31/09/98 Copyright TEL
Intermodulation .. -40dBc with interfering signal of
-30dBc
.. -70dBc with 25dB isolation
& interfering signal of -30dBc
(PA with output isolator)
T856 Mismatch Capability:
Ruggedness .. refer to your nearest Tait Dealer or
Customer Service Organisation
Stability .. 3:1 VSWR (all phase angles)
Radiated Spurious Emissions:
Transmit .. -36dBm to 1GHz
-30dBm 1GHz to 4GHz
Standby .. -57dBm to 1GHz
-47dBm 1GHz to 4GHz
Conducted Spurious Emissions: (T856 Only)
Transmit .. -36dBm to 1GHz
-30dBm 1GHz to 4GHz
Standby .. -57dBm to 1GHz
-47dBm 1GHz to 4GHz
Power Output:
T856 - Rated Power .. 25W (see Duty Cycle)
- Range Of Adjustment .. 5-25W
T857 .. 1W ±300mW
Duty Cycle (T856 Only) .. 100% @ 25W at +25°C
.. 25% @ 25W at +60°C
.. 100% @ 10W at +40°C
1.2.4 Audio Processor
1.2.4.1 Inputs
Inputs Available .. line, microphone and CTCSS
Line Input:
Impedance .. 600 ohms (balanced)
Sensitivity (60% modulation @ 1kHz)-
With Compressor .. -50dBm
Without Compressor .. -30dBm
Microphone Input:
Impedance .. 600 ohms
Sensitivity (60% modulation @ 1kHz)-
With Compressor .. -70dBm
Without Compressor .. -50dBm
M850-00
T856/857 General Information
C1.11
Copyright TEL 31/09/98
1.2.4.2 Modulation Characteristics
Frequency Response .. flat or pre-emphasised (optional)
(below limiting)
Line And Microphone Inputs:
Pre-emphasised Response-
Bandwidth .. 300Hz to 3kHz (WB & MB)
.. 300Hz to 2.55kHz (NB)
Below Limiting .. within +1, -3dB of a 6dB/octave
pre-emphasis characteristic
Flat Response .. within +1, -2dB of output at 1kHz
Above Limiting Response .. within +1, -2dB of a flat response
(ref. 1kHz)
Distortion .. 2%
Hum And Noise:
Wide Bandwidth .. -55dB (300Hz to 3kHz [EIA]) typical
Mid Bandwidth .. -55dB (CEPT)
Narrow Bandwidth .. -50dB (CEPT)
Compressor (optional):
Attack Time .. 10ms
Decay Time .. 800ms
Range .. 50dB
1.2.4.3 CTCSS
Standard Tones .. all 37 EIA group A, B and C tones
plus 13 commonly used tones
Frequency Error .. 0.08% max.
(from EIA tones)
Generated Tone Distortion .. 1.2% max.
Generated Tone Flatness .. flat across 67 to 250.3Hz to within 1dB
Modulation Level .. adjustable
Modulated Distortion .. <5%
1.2.5 Microcontroller
Auxiliary Ports:
Open Drain Type .. capable of sinking 2.25mA via 2k2Ω
Vds max. .. 5V
C1.12
T856/857 General Information
M850-00
31/09/98 Copyright TEL
1.2.6 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 pri-
marily 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 pri-
vate 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.
M850-00
T856/857 General Information
C1.13
Copyright TEL 31/09/98
1.3 Product Codes
The three groups of digits in the T850 Series II product code provide information about
the model, type and options fitted, according to the conventions described below.
The following explanation of T850 Series II product codes is not intended to suggest that
any combination of features is necessarily available in any one product. Consult your
nearest Tait Dealer or Customer Service Organisation for more information regarding
the availability of specific models, types and options.
Model
The Model group indicates the basic function of the product, as follows:
T85X-XX-XXXX T855 receiver
T856 25W transmitter
T857 exciter
T858 50W power amplifier
T859 100W power amplifier
Type
The Type group uses two digits to indicate the basic RF configuration of the product.
The first digit in the Type group designates the frequency range:
T85X-XX-XXXX ’1’ for 400-440MHz
’2’ for 440-480MHz
’3’ for 480-520MHz
The second digit in the Type group indicates the channel spacing:
T85X-XX-XXXX ’0’ for wide bandwidth (25kHz)
’3’ for mid bandwidth (20kHz)
’5’ for narrow bandwidth (12.5kHz)
Options
T85X-XX-XXXX The Options group uses four digits and/or letters to indicate
any options that may be fitted to the product. This includes
standard options and special options for specific customers.
’0000’ indicates a standard Tait product with no options fitted.
The large number of options precludes listing them here.
C1.14
T856/857 General Information
M850-00
31/09/98 Copyright TEL
1.4 T856 Standard Product Range
The following table lists the range of standard T856 types (i.e. no options fitted) availa-
ble at the time this manual was published. Consult your nearest Tait Dealer or Cus-
tomer Service Organisation for more information.
Caution:
T856-16-XXXX Product Types
In the United States the 406 to 406.1MHz frequency range is reserved
for use by Distress Beacons. Do not program transmitters to operate in
this frequency range in the United States.
You can identify the transmitter 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 transmitter type by checking the placement of an SMD resistor in the table that is
screen printed onto the PCB (refer to Section 6.1 for more details).
Frequency Range (MHz) 400-440
Deviation (kHz) 2.5 2.5 4 5
TCXO ±1ppm -20°C to +60°C ••••
Transmitter Type: T856- 16-0000a
a. United States market only.
15-0000 13-0000 10-0000
Frequency Range (MHz) 440-480
Deviation (kHz) 2.5 2.5 4 5
TCXO ±1ppm -20°C to +60°C ••••
Transmitter Type: T856- 26-0000a25-0000 23-0000 20-0000
Frequency Range (MHz) 480-512 480-520
Deviation 2.5 2.5 5
TXCO ±1ppm -20° to +60°C •••
Transmitter Type: T856- 36-0000a35-0000 30-0000
M850-00
T856/857 General Information
C1.15
Copyright TEL 31/09/98
1.5 T857 Standard Product Range
The following table lists the range of standard T857 types (i.e. no options fitted and
cyclic keying disabled) available at the time this manual was published. Consult your
nearest Tait Dealer or Customer Service Organisation for more information.
Caution:
T857-16-XXXX Product Types
In the United States the 406 to 406.1MHz frequency range is reserved
for use by Distress Beacons. Do not program exciters to operate in this
frequency range in the United States.
You can identify the exciter 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
exciter type by checking the placement of an SMD resistor in the table that is screen
printed onto the PCB (refer to Section 6.1 for more details).
Frequency Range (MHz) 400-440
Deviation (kHz) 2.5 2.5 4 5
TCXO ±1ppm -20°C to +60°C ••••
Exciter Type: T857- 16-0000a
a. United States market only.
15-0000 13-0000 10-0000
Frequency Range (MHz) 440-480
Deviation (kHz) 2.5 2.5 4 5
TCXO ±1ppm -20°C to +60°C ••••
Exciter Type: T857- 26-0000a25-0000 23-0000 20-0000
Frequency Range (MHz) 480-512 480-520
Deviation 2.5 2.5 5
TXCO ±1ppm -20° to +60°C •••
Exciter Type: T857- 36-0000a35-0000 30-0000
M850-00
T856/857 Circuit Operation
C2.1
Copyright TEL 31/09/98
2 T856/857 Circuit Operation
This section provides a basic description of the circuit operation of the T856 transmitter
and T857 exciter.
Note:
Unless otherwise specified, the term "PGM800Win" used in this and follow-
ing sections refers to version 2.00 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
2.1 Introduction 2.3
2.2 Microcontroller 2.4
2.3
2.3.1
Synthesised Local Oscillator
Two Point Modulation
2.5
2.6
2.4
2.4.1
VCO
VCO Supply
2.7
2.7
2.5
2.5.1
2.5.2
2.5.3
2.5.4
2.5.5
Audio Processor
General
Audio Inputs
Keying Inputs
Compressor (Automatic Level Control (ALC))
Outputs To Modulators
2.8
2.8
2.8
2.9
2.9
2.9
2.6 Power Supply & Regulator Circuits 2.10
2.7 Transmit Timers 2.11
2.8 T856 Drive Amplifier & PA 2.12
2.9 T857 Exciter Drive Amplifier 2.13
C2.2
T856/857 Circuit Operation
M850-00
31/09/98 Copyright TEL
Figure Title Page
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
T856 High Level Block Diagram
T857 High Level Block Diagram
T856/857 Microcontroller Block Diagram
T856/857 Synthesiser Block Diagram
T856/857 Two Point Modulation
T856/857 Audio Processor Block Diagram
T856/857 Power Supply & Regulators Block Diagram
T856/857 Transmit Timers
2.3
2.3
2.4
2.5
2.6
2.8
2.10
2.11
M850-00
T856/857 Circuit Operation
C2.3
Copyright TEL 31/09/98
2.1 Introduction
The individual circuit blocks which make up the T856 and T857 are:
• synthesiser
•VCO
• audio processor
• drive amplifier
• power amplifier (T856 only)
• voltage regulators.
Each of these circuit blocks is set in its own shielded compartment, formed as an inte-
gral part of the main chassis.
The configuration of the circuit blocks may be seen on a functional level in Figure 2.1
and Figure 2.2. Refer to the circuit diagrams in Section 6.2 (T856) or 6.3 (T857) for more
detail.
Figure 2.1 T856 High Level Block Diagram
Figure 2.2 T857 High Level Block Diagram
Ramp
Gen.
Time
Delay
Time
Delay
Time
Delay
Audio
Processor
Synthesiser +22dBm
Reference
Oscillator
12.8MHz
Microphone
Line
Transformer
Lock
Detect
PIN
Switch
Power
Control
Drive
Amp. PA
VCO
Gate
Directional
Coupler Low Pass
Filter
Exciter
Output
(+30dBm to
+33dBm) Transmitter
Output
(25W)
Tx Reg
&
Audio
Processor
Synthesiser +22dBm
Reference
Oscillator
12.8MHz
Microphone
Line
Transformer
Lock
Detect
PIN
Switch
Switching
Control
Drive
Amp.
Gate
Exciter
Output
(+28dBm to
+31dBm)
&Ramp
Gen.
Tx Reg VCO
Time
Delay
Time
Delay
Low Pass
Filter
PA Control Signal
(via exciter RF coax)
C2.4
T856/857 Circuit Operation
M850-00
31/09/98 Copyright TEL
2.2 Microcontroller
(Refer to the microcontroller circuit diagram (sheet 8) in Section 6.2 or 6.3.)
Figure 2.3 T856/857 Microcontroller Block Diagram
Overall system control of the T856/857 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) & D-range 2;
• monitor channel change inputs from D-range 2;
• generate timing waveforms for CTCSS encoding;
• coordinate and implement timing control of the exciter/transmitter.
5V Reset
5V Digital
Regulator Watchdog
Reset
Channel
Select
Port
Auxiliary
Output
Port
Microcontroller
12.8MHz
Clock
Microcontroller Cavity
CTCSS Tone
External
Serial
Port
EEPROM Synthesiser
Dual Digital
Potentiometer
CTCSS
Encoder
Converter
M850-00
T856/857 Circuit Operation
C2.5
Copyright TEL 31/09/98
2.3 Synthesised Local Oscillator
(Refer to the synthesiser circuit diagram (sheet 7) in Section 6.2 or 6.3 and the VCO cir-
cuit diagram in Part E.)
Figure 2.4 T856/857 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 & 4) and divided
down to 200kHz (IC730). This 200kHz square wave is then summed with the modulat-
ing audio and passed to an integrator (IC720 pins 9 & 8, Q710, Q720). This produces a
ramping waveform which is centred around a DC level determined by the incoming
audio. IC720 pins 5 & 6 perform as a comparator, ultimately producing a phase-modu-
lated 200kHz square wave. This is followed by another phase shifting stage (IC720 pins
3 & 4, Q730, Q740), before being divided down to 6.25kHz or 5kHz within the synthe-
siser 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 synthe-
siser chip). The phase detector outputs drive a balanced charge pump circuit (Q760,
Q770, Q775, Q780, Q785) and active loop filter (IC750 pins 5, 6 & 7, Q790) which pro-
duces a DC voltage between 0V and 20V to tune the VCO. This VCO control line is fur-
ther 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 & 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.
/R
Reference
Divider
12.8MHz
Reference
Oscillator Fixed
Divider
/64
Phase
Modulator
Ref
Mod
Phase
Detector Charge
Pump Loop
Filter
FREQUENCY SYNTHESISER IC
Serial
Bus
Clk
Data
En Controller
/N
Programmable
Divider
64/65
Prescaler
VCO PCB
VCO
Modulation
VCO Buffer Output
Buffer
+22dB
m
L.O.
Divider Buffer
f
ref
f
in
Σ
C2.6
T856/857 Circuit Operation
M850-00
31/09/98 Copyright TEL
2.3.1 Two Point Modulation
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 modula-
tion 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 modu-
lation frequencies greater than 300Hz the loop cannot correct fast enough and modula-
tion is seen on the carrier. The response of the loop to VCO modulation is shown by f2
in Figure 2.5 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 2.5.
Figure 2.5 T856/857 Two Point Modulation
M850-00
T856/857 Circuit Operation
C2.7
Copyright TEL 31/09/98
2.4 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 oscilla-
tion. The VCO control voltage from the loop filter (IC750) is applied to the varicaps
(D1-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 amplifi-
cation, 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 multi-
plier 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 T856 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.
C2.8
T856/857 Circuit Operation
M850-00
31/09/98 Copyright TEL
2.5 Audio Processor
(Refer to the audio processor circuit diagram (sheet 2) in Section 6.2 or 6.3.)
Figure 2.6 T856/857 Audio Processor Block Diagram
2.5.1 General
The audio processor comprises several link selectable circuit blocks which may be con-
figured 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 600 ohm balanced (or unbalanced) line, and
the other from a local microphone. The microphone signal is passed first to a pre-ampli-
fier (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 con-
nected to the multiplexer and is disabled by the microphone PTT switch.
A third input for external CTCSS tones is also provided.
Pre-
emphasis
34
6
B
C
5
6
4
34
2
5
3
3
5
7
12
8
N
H
M
I
E
L
J
D
4
6
1
mic.
line
Multiplexer
Inputs
Output
Output
Inhibit
Audio 1 Audio 2
Compressor
Link
Link
Link
Tx Enable
Σ
Carrier
Opto-Key
Tx Key
PTT
Microphone
Input
Line Input
Microphone
Pre-amp.
Opto-coupler
Link
PL205
PL215
PL220
PL210
Limiter
Set Deviation
CTCSS
Low Pass
Filter
Ref. Mod. Adjust
Integrator
Digital Pot.
Digital Pot.
Buffer
Output
To VCO Ref.
Mod.
Constant Current Sink
+
_
M850-00
T856/857 Circuit Operation
C2.9
Copyright TEL 31/09/98
2.5.3 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 reli-
able 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 compara-
tor (IC230) which toggles whenever the audio signal exceeds a DC threshold deter-
mined 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 complet-
ing 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 degrada-
tion of the signal-to-noise ratio. Very low audio input levels should there-
fore 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 sup-
ply 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 via the deviation digital pot.
(IC220 - adjustable via PGM800Win).
C2.10
T856/857 Circuit Operation
M850-00
31/09/98 Copyright TEL
2.6 Power Supply & Regulator Circuits
(Refer to the regulators circuit diagram (sheet 6) in Section 6.2 or 6.3.)
Figure 2.7 T856/857 Power Supply & Regulators Block Diagram
The T856 and T857 are designed to operate from a 10.8-16V DC supply (13.8V nominal).
A 5.3V regulator (IC630) runs directly from the 13.8V rail, driving much of the synthe-
siser circuitry. It is also used as the reference for a DC amplifier (IC640, Q630, Q620)
which provides a medium current capability 9V supply. The T856 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.
LVI
5V
Reg
DC
Amp Switching
PS 5V Dig
Reg
Power
Switch
13.8V
Nom. 5V 5V Dig9V 20V
13.8V Nom.
From Rear
D-Range
Tx Enable
Buffer
Tx Reg.
+9V
µP
Watchdog
Timer
Micro-
controller
µP
Reset
M850-00
T856/857 Circuit Operation
C2.11
Copyright TEL 31/09/98
2.7 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 2.8):
Figure 2.8 T856/857 Transmit Timers
Timer Function Adjustment
Transmit Tail Sets the tail time during which the
transmitter stays keyed after the exter-
nal key source has been removed.
0-5 seconds in 100ms
steps
Transmit Timeout Sets the maximum continuous trans-
mission time. Once the timer has
timed out, the transmitter must be
keyed again, unless prevented by the
transmit lockout timer.
0-300 seconds in 10
second steps
Transmit Lockout Sets the period of time that must
elapse after a timeout before the trans-
mitter can re-transmit. Once the timer
has timed out, the transmitter can be
keyed again.
0-60 seconds in 10
second steps
On
Lockout Time
Timeout
Time
On
Tail Time
Tx-Enable
Tx-Reg.
Tx-Enable
Tx-Reg.
C2.12
T856/857 Circuit Operation
M850-00
31/09/98 Copyright TEL
2.8 T856 Drive Amplifier & PA
(Refer to Figure 2.1 and the exciter and PA circuit diagrams (sheets 3 & 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 (Q350, Q355). 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 & 5)
and then summed with the ’power control’ level and fed to the control integrator (IC350
pin 6). The output control voltage is buffered by Q310 and Q315, and applied to the col-
lector of the wide band exciter amplifier.
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:
• Q325, IC350 power ramping
• Q355, Q325 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) is provided so that the RF output power can be reduced to
a preset level when a set temperature is exceeded. This is a protection circuit (IC350 pin
1, Q320) to prevent overheating, as the unit is not rated for continuous operation (refer
to Section 1.2.3 for duty cycle specifications).
#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.
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 decou-
pling. CV475 tunes the output matching across the entire band.
M850-00
T856/857 Circuit Operation
C2.13
Copyright TEL 31/09/98
2.9 T857 Exciter Drive Amplifier
(Refer to Figure 2.2 and the exciter circuit diagram (sheet 3) in Section 6.3.)
A two-stage, wide band amplifier (Q350, Q355) provides an output level of approxi-
mately 1W (+30dBm) for an input of 100mW (+20dBm) from the VCO. IC300 pin 1,
Q302, and Q303 provide a 9V regulated supply for the exciter.
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 exciter control circuit and to switch off the
RF signal at the input to the drive amplifier. This is achieved by a PIN switch attenuator
(D201, D202, D203).
Cyclic keying control is provided by additional circuitry consisting of several time
delay, ramp and gate stages:
• Q301, Q302, Q303, IC300 power ramping
• Q310, Q311 Tx-Reg. and Lock-Detect gate
• Q306, Q307, Q308, Q309 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.
R517, R518 and R519 form a 3dB attenuator to provide good VCO/drive amplifier isola-
tion as well as the correct exciter drive level
Note:
The exciter provides a DC control signal to the PA via the RF coax. This is
injected via L314.
M850-00
T856/857 Initial Tuning & Adjustment
C3.1
Copyright TEL 31/09/98
3 T856/857 Initial Tuning & Adjustment
Caution:
This equipment contains CMOS devices which are susceptible to dam-
age from static charges. Refer to Section 1.2 in Part A for more infor-
mation 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 (T856 only)
• modulator adjustment
• limiter adjustment
• setting line level
• compressor adjustment
• timer adjustment.
Note:
Unless otherwise specified, the term "PGM800Win" used in this and follow-
ing sections refers to version 2.00 and later of the software.
Refer to Figure 4.4 and 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 compo-
nents 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
3.4.1
3.4.2
3.4.3
3.4.4
3.4.5
3.4.6
3.4.7
Short Tuning Procedure
Introduction
Synthesiser Alignment
Output Power Adjustment (T856 Only)
Two Point Modulation Adjustment
FM Deviation (Limiter) Adjustment
Line-in Level Adjustment
CTCSS Encoder
3.5
3.5
3.5
3.5
3.6
3.6
3.7
3.7
C3.2
T856/857 Initial Tuning & Adjustment
M850-00
31/09/98 Copyright TEL
3.5
3.5.1
3.5.2
Audio Processor Links
Link Details
Typical Options
3.8
3.8
3.8
3.6 Synthesiser Alignment 3.9
3.7 PA Alignment (T856 Only) 3.10
3.8 Thermal Shutdown (T856 Only) 3.10
3.9
3.9.1
3.9.2
3.9.3
3.9.4
3.9.5
3.9.5.1
3.9.5.2
3.9.5.3
Audio Processor
Two Point Modulation
Modulator Adjustment
Limiter Adjustment
Line Level Without Compressor
Compressor
Compressor On Line Input Only
Compressor On Microphone Input Only
Compressor On Both Line & Microphone Inputs
3.11
3.11
3.11
3.12
3.12
3.12
3.12
3.13
3.13
3.10 CTCSS Encoder 3.14
Figure Title Page
3.1
3.2
T856/857 Test Equipment Set-up With T800-01-0010
T856/857 Test Equipment Set-up Without T800-01-0010
3.4
3.4
Section Title Page
M850-00
T856/857 Initial Tuning & Adjustment
C3.3
Copyright TEL 31/09/98
3.1 Introduction
When you receive your T856 transmitter or T857 exciter 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 fre-
quency), you should only need to reprogram the transmitter/exciter 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/exciter 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/exciter’s EEPROM
memory (IC820) by using the PGM800Win software package and an IBM PC. You can
also use PGM800Win to select the transmitter/exciter’s current operating frequency (or
"default channel").
If the transmitter/exciter is installed in a rack frame, you can program it via the pro-
gramming port in the speaker panel. However, you can also program the transmitter/
exciter 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/
exciter 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 the
rack frame backplane PCB. Refer to Part C in the T800 Series Ancillary
Equipment Service Manual (M800-00-101 or later issue) or 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.
C3.4
T856/857 Initial Tuning & Adjustment
M850-00
31/09/98 Copyright TEL
3.3 Test Equipment Required
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
• 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.
Figure 3.1 T856/857 Test Equipment Set-up With T800-01-0010
Figure 3.2 T856/857 Test Equipment Set-up Without T800-01-0010
or RF test set (optional)
Frequency
Counter
Audio
Voltmeter
RF Power
Meter Oscilloscope
AF O/P
Modulation
Meter
20dB pad: exciter
40dB pad: transmitter
RF O/P
PGM800Win
PSU
+13.8V
-Ve
Audio
Generator
Line I/P
CTCSS I/P
Ω600
Audio
Voltmeter
Exciter/
Transmitter
T800
Calibration
Test Unit
PGM800Win
Serial
Com
PSU
+13.8V
-Ve
Frequency
Counter
Audio
Voltmeter
RF Power
Meter Oscilloscope
AF O/P
Modulation
Meter
20dB pad: exciter
40dB pad: transmitter
Audio
Generator
Line I/P
CTCSS I/P
Ω600
Audio
Voltmeter
Key
RF O/P
Exciter/
Transmitter
via module programming interface
(e.g. T800-01-0004)
M850-00
T856/857 Initial Tuning & Adjustment
C3.5
Copyright TEL 31/09/98
3.4 Short Tuning Procedure
Use this procedure only if you want to reprogram the T856/857 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 program-
ming kit (refer to Section 3.2).
Remove the top cover (nearest the handle).
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 meas-
ures 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 fre-
quency separation than the specified switching range of
8MHz.
3.4.3 Output Power Adjustment (T856 Only)
Connect an RF power meter 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.
C3.6
T856/857 Initial Tuning & Adjustment
M850-00
31/09/98 Copyright TEL
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:
Reference modulation and limiter adjustment are controlled by
PGM800Win. Electronic potentiometers (256 step) are used to allow chan-
nel-by-channel adjustment of deviation and two point modulation.
Note 3:
To optimise the modulation response across the switching range, repeat
steps 1-4 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 1-4 below on the middle channel
and cut and paste the value to all other channels.
1. Inject an audio signal of 300Hz 1.5V rms (+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 adjust IC220 via PGM800Win “refer-
ence modulation” 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 frequen-
cies 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:
- incorrect set-up
or - modulation circuitry fault.
The specification window is ±1dB relative to 150Hz from 67 to 260Hz.
3.4.5 FM Deviation (Limiter) Adjustment
Note:
If the T856/857 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 “fill” option in PGM800Win.
Inject 1kHz at -10dBm into the line input (D-range 1 (PL100) pins 1 & 4; pins 2 & 3
shorted; refer to Section 2.2 of Part F).
M850-00
T856/857 Initial Tuning & Adjustment
C3.7
Copyright TEL 31/09/98
Adjust RV210 (line sensitivity) fully clockwise and key the transmitter by earthing
the Tx-Key line. Adjust IC220 via PGM800Win “deviation” to set the peak devia-
tion to ±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 IC220 if neces-
sary via PGM800Win “deviation”.
3.4.6 Line-in Level Adjustment
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.
3.4.7 CTCSS Encoder
Program a CTCSS tone on the set channel using PGM800Win.
Key the T856/857 with the front panel "Carrier" switch.
Adjust RV805 (CTCSS level adjust) to give 10% system deviation.
Reset the maximum deviation as per Section 3.4.5.
C3.8
T856/857 Initial Tuning & Adjustment
M850-00
31/09/98 Copyright TEL
3.5 Audio Processor Links
3.5.1 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. The factory settings are shown in brackets [ ].
3.5.2 Typical Options
Plug Linka
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 pair of pins.
Function
PL205
1-2
[3-4]
5-6
A
B
C
not connected
microphone pre-amp. output to compressor input
microphone pre-amp. output to multiplexer input
PL210
[1-2]
3-4
5-6
L
M
N
multiplexer output to pre-emphasis input
multiplexer output to limiter input
multiplexer output to compressor input
PL215
1-2
[3-4]
5-6
7-8
9-10
G
H
I
J
K
not connected
compressor output to multiplexer input
compressor output to limiter input
compressor output to pre-emphasis input
not connected
PL220
1-2
[3-4]
5-6
D
E
F
pre-emphasis output to multiplexer input
pre-emphasis output to limiter input
not connected
PL205 PL210 PL215 PL220
microphone pre-amp. compressed
and pre-emphasised;
line input pre-emphasised
(standard set-up)
[3-4]
B
[1-2]
L
[3-4]
H
[3-4]
E
microphone pre-amp. compressed
and pre-emphasised;
line input unprocessed
3-4
B
3-4
M
7-8
J
1-2
D
line and microphone compressed
and pre-emphasised
5-6
C
5-6
N
7-8
J
3-4
E
microphone pre-amp. compressed;
line and microphone flat response
3-4
B
3-4
M
3-4
H
5-6
F
M850-00
T856/857 Initial Tuning & Adjustment
C3.9
Copyright TEL 31/09/98
3.6 Synthesiser Alignment
• Ensure that the T856/857 has been programmed with the required frequencies
using PGM800Win software.
•Single Channel Select a channel using PGM800Win.
Multichannel Select the middle channel via PGM800Win.
• Connect a high impedance voltmeter to the long lead of L1 in the VCO (this meas-
ures 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 fre-
quency separation than the specified switching range
(8MHz).
• Check that the exciter output power is 1W ±300mW (T857 only).
• 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 down-
ward force of more than 500g (1lb) when adjusting.
C3.10
T856/857 Initial Tuning & Adjustment
M850-00
31/09/98 Copyright TEL
3.7 PA Alignment (T856 Only)
Check that the exciter is connected to the PA with the coaxial link.
Connect an RF power meter to the PA output (use an appropriate attenuator as
necessary).
Turn RV310 (power control) fully clockwise.
Note:
Before the following measurement is taken, ensure the heatsink is at ambi-
ent temperature (20-25°C).
Measure and record the voltage (VL) at L481; perform this measurement at room
temperature so that the NTC (R481) is close to 25°C.
Key the transmitter by earthing the Tx-Key line.
Tune #CV475 until maximum power is obtained. Check that the power exceeds
30W.
Adjust RV310 (power control) to 25W.
Readjust #CV475 to reduce the supply current by up to 0.5A.
3.8 Thermal Shutdown (T856 Only)
Key the transmitter by earthing the Tx-Key line and set the output power to 25W
as described in Section 3.7.
Short L481 to ground.
Set RV330 (shutdown power level) for an output power of 5W.
Set RV320 (shutdown temperature) to 0.16VL volts (measured at IC350 pin 3),
where VL is the voltage measured at L481 in Section 3.7. This sets the thermal
shutdown at 85°C at NTC R481.
M850-00
T856/857 Initial Tuning & Adjustment
C3.11
Copyright TEL 31/09/98
3.9 Audio Processor
3.9.1 Two Point Modulation
The T856 and T857 utilise 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 fre-
quency. 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:
Reference modulation and limiter adjustment are controlled by
PGM800Win. Electronic potentiometers (256 step) are used to allow chan-
nel-by-channel adjustment of deviation and two point modulation.
Note 3:
To optimise the modulation response across the switching range, repeat
steps 1-4 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 1-4 below on the middle channel
and cut and paste the value to all other channels.
3.9.2 Modulator Adjustment
1. Inject an audio signal of 300Hz 1.5V rms (+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 adjust IC220 via PGM800Win “refer-
ence modulation” to obtain ±3kHz (±2.4kHz) [±1.5kHz] deviation.
4. Change the input frequency back to 300Hz.
Repeat steps 2 and 3 above until the deviations achieved at the two input frequen-
cies 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:
- incorrect set-up
or - modulation circuitry fault.
The specification window is ±1dB relative to 150Hz from 67 to 260Hz.
C3.12
T856/857 Initial Tuning & Adjustment
M850-00
31/09/98 Copyright TEL
3.9.3 Limiter Adjustment
Note:
If the T856/857 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 “fill” option in PGM800Win.
Set the links in the audio processor section as required (refer to Section 3.5).
Inject 1kHz at -10dBm into the line input (D-range 1 (PL100) pins 1 & 4; and pins 2
& 3 shorted; refer to Section 2.2 of Part F).
Adjust RV210 (line sensitivity) fully clockwise and key the transmitter by earthing
the Tx-Key line. Adjust IC220 via PGM800Win “deviation” to set the peak devia-
tion to ±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 IC220 if neces-
sary via PGM800Win “deviation”.
3.9.4 Line Level Without Compressor
This section assumes that the compressor is not used. If the compressor is required,
refer to Section 3.9.5.
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] devia-
tion.
3.9.5 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 fol-
lowing sections as appropriate.
3.9.5.1 Compressor On Line Input Only
Set RV210 (line sensitivity) fully clockwise and key the transmitter by earthing the
Tx-Key line.
Reduce the line level to -50dBm at 1kHz and set RV220 (compression level) fully
clockwise.
M850-00
T856/857 Initial Tuning & Adjustment
C3.13
Copyright TEL 31/09/98
Check that ±3kHz deviation (±2.4kHz) [±1.5kHz] is still available.
Slowly increase the audio input level until the demodulated waveform shows sig-
nificant signs of clipping (approximately ±4.5kHz (±3.6kHz) [±2.3kHz] deviation).
Adjust RV220 anticlockwise until the demodulated waveform is just clipping
(approximately ±4kHz (±3.2kHz) [±2kHz] deviation).
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.
3.9.5.2 Compressor On Microphone Input Only
Key the transmitter by earthing the Tx-Key line and plug a microphone jack into
the front panel socket.
Adjust RV220 (compression level) fully clockwise.
Acoustically couple the microphone to a tone box (1kHz) and close the PTT
switch.
Increase the audio level until the demodulated waveform shows significant signs
of clipping (approximately ±4.5kHz (±3.6kHz) [±2.3kHz] deviation).
Adjust RV220 anticlockwise until the demodulated waveform is just clipping
(approximately ±4kHz (±3.2khz) [±2kHz] deviation).
Increase the audio level by 10dB and verify that the test tone is held just into clip-
ping.
Whistle steadily into the microphone, checking that approximately ±4kHz
(±3.2khz) [±2kHz] deviation is produced. The modulated waveform should be
basically sinusoidal.
Speak into the microphone, checking that the modulation peaks reach about
±5kHz (±4kHz) [±2.5kHz] deviation.
As the line is to be used without compression, set RV210 (line sensitivity) as
described in Section 3.9.4.
3.9.5.3 Compressor On Both Line & Microphone Inputs
Set up as described in Section 3.9.5.1.
C3.14
T856/857 Initial Tuning & Adjustment
M850-00
31/09/98 Copyright TEL
3.10 CTCSS Encoder
Program a CTCSS tone on the set channel using PGM800Win.
Key the T856/857 with the front panel "Carrier" switch.
Adjust RV805 (CTCSS level adjust) to give 10% system deviation.
Reset the maximum deviation as per Section 3.9.3.
M850-00
T856/857 Functional Testing
C4.1
Copyright TEL 31/09/98
4 T856/857 Functional Testing
Caution:
This equipment contains CMOS devices which are susceptible to dam-
age from static charges. Refer to Section 1.2 in Part A for more infor-
mation on anti-static procedures when handling these devices.
The following test procedures will confirm that the T856/857 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 follow-
ing sections refers to version 2.00 and later of the software.
Refer to Figure 4.4 and Figure 4.5 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 4.3
4.5 Frequency Response 4.4
4.6 Audio Level Input Sensitivity 4.7
Figure Title Page
4.1
4.2
4.3
4.4
4.5
T856/857 Transmit Timers
T856/857 Pre-emphasis Response
T856/857 Limiting Response
T856 Main Tuning & Adjustment Controls
T857 Main Tuning & Adjustment Controls
4.4
4.5
4.6
4.9
4.11
M850-00
T856/857 Functional Testing
C4.3
Copyright TEL 31/09/98
4.1 Current Consumption
Connect the T856/857 to a 13.8V power supply.
Connect an RF power meter to the T856/857 output socket.
Check that the current in the 13.8V power cable is less than 150mA.
Key the T856/857 by earthing the Tx-Key line (the carrier "On" LED should light).
T856 Only: Adjust RV310 (power control) to obtain 25W output power.
Check that the current is as follows:
T856 <5.5A
T857 <750mA.
4.2 Output Power
Connect an RF power meter with suitable attenuation to the T856/857 output
socket.
Key the T856/857 by earthing the Tx-Key line.
Check that:
T856 the output power adjusts to ≥25W with RV310 (power control)
turned fully clockwise
T857 the output power is 1W ±300mW.
4.3 Output Frequency
Connect the T856/857 output to a frequency counter via an attenuator pad:
T856 40dB pad
T857 20dB pad.
Measure the output frequency and, if necessary, adjust the TCXO (=IC700) to trim
to the nominal frequency (±100Hz).
4.4 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 4.1):
C4.4
T856/857 Functional Testing
M850-00
31/09/98 Copyright TEL
Figure 4.1 T856/857 Transmit Timers
4.5 Frequency Response
If the T856/857 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.
• 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.
• 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.
The response should closely match that shown in Figure 4.3.
Timer Function Adjustment
Transmit Tail Sets the tail time during which the
transmitter stays keyed after the exter-
nal key source has been removed.
0-5 seconds in 100ms
steps
Transmit Timeout Sets the maximum continuous trans-
mission time. Once the timer has
timed out, the transmitter must be
keyed again, unless prevented by the
transmit lockout timer.
0-300 seconds in 10
second steps
Transmit Lockout Sets the period of time that must
elapse after a timeout before the trans-
mitter can re-transmit. Once the timer
has timed out, the transmitter can be
keyed again.
0-60 seconds in 10
second steps
On
Lockout Time
Timeout
Time
On
Tail Time
Tx-Enable
Tx-Reg.
Tx-Enable
Tx-Reg.
M850-00
T856/857 Functional Testing
C4.5
Copyright TEL 31/09/98
Figure 4.2 T856/857 Pre-emphasis Response
Wide Bandwidth
Narrow Bandwidth
Mid Bandwidth
The mid bandwidth graph is the same shape as the wide bandwidth graph. The devia-
tion figures are as follows:
peak + max. deviation = +0.8kHz
peak - max. deviation = -0.8kHz.
+10
+8
Modulation Level (dB ref. to dev. @ 1kHz)
+6
+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)
Peak + max. dev. = +1.0kHz @ 1000Hz
Peak - max. dev. = -1.0kHz @ 1000Hz
+10
+8
Modulation Level (dB ref. to dev. @ 1kHz)
+6
+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)
Peak + max. dev. = +0.5kHz @ 1000Hz
Peak - max. dev. = -0.5kHz @ 1000Hz
C4.6
T856/857 Functional Testing
M850-00
31/09/98 Copyright TEL
Figure 4.3 T856/857 Limiting Response
Wide Bandwidth
Narrow Bandwidth
100 500300 5k50
+10
+8
Modulation Level (dB ref. to max. dev.)
+6
+4
+2
+0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
10 20 30 200 1k 2k 3k 10k
Frequency (Hz)
Peak + max. dev. = +4.9kHz @ 1500Hz
Peak - max. dev. = -4.4kHz @ 2500Hz
Above limiting (steady-state)
Mid Bandwidth
The mid bandwidth graph is the same shape as the wide bandwidth graph. The devia-
tion figures are as follows:
peak + max. deviation = +4kHz
peak - max. deviation = -4kHz.
100 500300 5k50
+10
+8
Modulation Level (dB ref. to max. dev.)
+6
+4
+2
+0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
10 20 30 200 1k 2k 3k 10k
Frequency (Hz)
Peak + max. dev. = +2.4kHz @ 2000Hz
Peak - max. dev. = -2.5kHz @ 2000Hz
Above limiting (steady-state)
M850-00
T856/857 Functional Testing
C4.7
Copyright TEL 31/09/98
4.6 Audio Level Input Sensitivity
• Adjust RV210 (line sensitivity) fully clockwise.
• Check that the input sensitivities are better than those specified below:
Note:
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.
Line Input 600 ohms, ±3kHz (±2.4kHz) [±1.5kHz] deviation at
1kHz:
with compressor -50dBm
without compressor -30dBm
Microphone Input 600 ohms, ±3kHz (±2.4kHz) [±1.5kHz] deviation at
1kHz:
with compressor -75dBm
without compressor -55dBm
CTCSS Input 1kHz deviation at 150Hz 500mV rms
M850-00
T856/857 Fault Finding
C5.1
Copyright TEL 31/09/98
5 T856/857 Fault Finding
Caution:
This equipment contains CMOS devices which are susceptible to dam-
age from static charges. Refer to Section 1.2 in Part A for more infor-
mation 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 Customer Support, Radio Systems Division, Tait Elec-
tronics 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 follow-
ing sections refers to version 2.00 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
5.4.1
5.4.2
DC Checks
Power Rails
VCO Locking
5.4
5.4
5.4
5.5
5.5.1
5.5.2
5.5.3
5.5.4
RF Checks
T856 Drive Power
T856 PA Output Power
T857 Output Power
Audio And Modulation
5.5
5.5
5.5
5.5
5.6
5.6 PGM800Win Generated Errors 5.7
C5.2
T856/857 Fault Finding
M850-00
31/09/98 Copyright TEL
5.7
5.7.1
5.7.1.1
5.7.1.2
5.7.1.3
5.7.2
5.7.3
5.7.4
5.7.5
5.7.6
5.7.7
Fault Finding Charts
Microcontroller
Basic Checks
Serial Communications
CTCSS Encode
Regulator
Synthesiser
T856 Drive Amplifier
T856 PA & Power Control
T857 Exciter Drive Amplifier
Audio Processor
5.8
5.8
5.8
5.9
5.10
5.11
5.12
5.15
5.16
5.17
5.18
5.8 To Replace The T856 PA Transistors (Q410 & Q420) 5.19
Figure Title Page
5.1
5.2
RF Diode Probe Circuit
Typical Transistor/Capacitor Spacing (Not To Scale)
5.5
5.19
Section Title Page
M850-00
T856/857 Fault Finding
C5.3
Copyright TEL 31/09/98
5.1 Visual Checks
Remove the covers from the T856/857 and inspect the PCB for damaged or broken com-
ponents, paying particular attention to the surface mounted devices (SMD's).
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 for-
ward and reverse resistance of the junctions. Unless the device is completely desol-
dered, 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 20k ohm/V or bet-
ter multimeter, using only the medium or low resistance ranges).
The collector current drawn by multi-junction transistors is a further guide to their per-
formance.
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 T856/857 front panel will flash according to the condi-
tions described in the following table:
Where two or more conditions occur at the same time, the precedence is in the order
shown above (i.e. T856/857 linked has the highest priority, followed by internal error).
Flash Rate Condition
fast ( sec. on/ sec. off
approx.) T856/857 is linked with
PGM800Win
unequal ( sec. on/1 sec. off
approx.) microcontroller has detected an
internal communications error -
refer to Section 5.7.1
C5.4
T856/857 Fault Finding
M850-00
31/09/98 Copyright TEL
5.4 DC Checks
5.4.1 Power Rails
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 regula-
tor 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).
T856 Only: 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 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 chart (Section 5.7.3).
M850-00
T856/857 Fault Finding
C5.5
Copyright TEL 31/09/98
5.5 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..
Figure 5.1 RF Diode Probe Circuit
5.5.1 T856 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 (Q350, Q355).
5.5.2 T856 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 T857 Output Power
Refer to the exciter drive amplifier fault finding chart (Section 5.7.6).
Ensure that the VCO locks (refer to Section 5.4.2).
100k
10k
1n
1n
1N6263
Coax
Probe
Earthing Clip
DC to DVM or
Oscilloscope
This unit is not suitable for use on high power RF circuits.
C5.6
T856/857 Fault Finding
M850-00
31/09/98 Copyright TEL
Connect the exciter output to a power meter and key the exciter.
Check that the output power is 1W ±300mW.
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 (Q301, IC300, Q302, Q303).
5.5.4 Audio And Modulation
Refer to the audio processor fault finding chart (Section 5.7.7).
Set up the audio processor as described in Section 3.9.
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 two modulators are incorrectly adjusted or
a fault condition exists.
M850-00
T856/857 Fault Finding
C5.7
Copyright TEL 31/09/98
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.
C5.8
T856/857 Fault Finding
M850-00
31/09/98 Copyright TEL
5.7 Fault Finding Charts
Note:
The standard test point designations used in this section are as follows:
TP601 13.8V
TP602 9V
TP603 20V
TP604 5V
5.7.1 Microcontroller (IC810)
5.7.1.1 Basic Checks
Pulsing Check state
of pin 35.
Y
Is pin 30
pulsing?
High or open circuit
Y
Static high/low
Check state of
pins 36 to 43.
Low/floating
High
Is the 12.8MHz clock
present on IC810 pin 21
(microcontroller)?
N
Replace
IC810.
Check IC740
(synthesiser).
*digital storage oscilloscope
Replace IC810.
Check the
state of
pin 10.
N Pulsing
Low
Replace
IC810.
Use a DSO* to check
operation of IC650
(i.e. active high
pulse at power up).
Replace
IC650.
Correct the fault causing
pin 35 to be low/floating.
M850-00
T856/857 Fault Finding
C5.9
Copyright TEL 31/09/98
5.7.1.2 Serial Communication
Check pin state.
Y
Low/floatin
g
N
Noise
on pin
Disconnect the
pro
g
rammin
g
lead.
Is IC810 pin 11 hi
g
h?
(microcontroller)
Y*di
g
ital stora
g
e
oscilloscope
Use PGM800Win
to send a POLL
command to the
radio.
Check the transistor
interface circuitry
and/or replace the
pro
g
rammin
g
lead.
Check the SERIAL-COM
and AUDIO-1/2 links.
Replace
IC810.
Check the transistor
interface circuitry
and/or replace the
pro
g
rammin
g
lead.
Check the transistor
interface circuitry.
Check IC810 pin 13
with a DSO. Is there
a response from IC810 after
a poll command is sent?
N
Y
Connect the pro
g
rammin
g
lead and use PGM800Win
to read the rack/radio.
Check I/O pad P810
with a DSO*.
Does it swin
g
from
0 to 5V?
N
C5.10
T856/857 Fault Finding
M850-00
31/09/98 Copyright TEL
5.7.1.3 CTCSS Encode
Y
Y
Y
Replace IC810.
Use PGM800Win to
select a channel
with a CTCSS tone
pro
g
rammed.
Check serial communications.
(See separate flow chart).
Cannot select a channel
Check IC810 pins 24, 25
& 26 (microcontroller).
Are there 5V square waves at
the CTCSS frequency?
Check IC830 pins 1, 7 & 14.
Are there 9V square waves at
the CTCSS frequency?
Check IC830 pin 8.
Is there a sine wave
at the CTCSS frequency? Check RV805.
No tone
Check the filter circuit for bias
problems and/or short circuits.
Distorted tone
No square waves or
uneven mark/space ratio
No square waves or
uneven mark/space ratio Check IC830 circuitry
and repair/replace.
M850-00
T856/857 Fault Finding
C5.11
Copyright TEL 31/09/98
5.7.2 Regulator
N
Y
Check for
overheatin
g
components &
short circuits.
N
Y
Check Q630,
Q620 & IC640.
N
Y
9.0V present
on TP602?
Check Q660 is
switchin
g
at
approx. 150kHz.
N
Y
20V present
on TP603?
Check R615.
Replace IC610.
N
Y
+5V present on
IC610 pin 2?
Key Tx.
YRe
g
ulators OK.
N
8.8V present
on Tx re
g
. TP305?
Replace Q610.
Y
N
0V present
on Q860 collector?
Check Q860 and
associated circuitry.
Y
0.6V present on
Q860 base?
N
Re
g
ulators OK.
Check microcontroller
section.
Check continuity
from pin 9 of
D-ran
g
e 1.
13.8V present on
IC630 pin 3?
5.3V present on
IC630 pin 1? Replace IC630.
C5.12
T856/857 Fault Finding
M850-00
31/09/98 Copyright TEL
5.7.3 Synthesiser
Refer to the synthesiser circuit diagram (sheet 7) in Section 6 and the VCO circuit dia-
gram in Part E.
N
A B
Check biasin
g
resistors, Q4 & Q5.
N
Y
N
8.3V present
at VCO?
DC V present
at Q4 & Q5?
9V present at
VCO Q4/Q5?
No VCO RF output.
Y
DC V present at
VCO, Q1, Q2 & Q3?
Check biasin
g
resistors, Q1,
Q2 & Q3.
Y
N
Capacitors OK?
Check for cracks,
shorts, etc.
N
Y
Replace VCO.
Replace
if faulty.
Y
N
Y
N
N
N
Y
Y
DC V present
on Q795 emitter?
Check 9V supply.
9V present on
Q795 divider buffer?
20V inverter
supply faulty.
20V present
on IC750 pin 8?
Check 5V re
g
. &
supply resistor
to each IC.
+5V present at
IC700, IC710,
IC740, IC720
& IC730?
VCO out of lock.
Y
Y
Y
Continued on the next pa
g
e
Y
VCO freq. correct?
Synthesiser OK.
VCO trimmer
freq. ran
g
e OK?
Check VCO tunin
g
caps & trimmer.
VCO OK.
N
N
NN
N
Y
Y
Recheck
pro
g
rammin
g
via PGM800Win.
Check Q5 C
multiplier
(synth).
Check biasin
g
resistors & Q795.
Check Tx re
g
.,
Q610 & 9V re
g
.
Does VCO trimmer
adjust for stable
control line
between 3 & 16V?
Does VCO trimmer
adjust for required
frequency ran
g
e
between 3 & 16V?
Check #C1, #C7, #C8,
C6 & D1-D2 in VCO.
Is 8MHz VCO ran
g
e
achieved between
3 & 16V?
M850-00
T856/857 Fault Finding
C5.13
Copyright TEL 31/09/98
Programming and
serial bus OK?
Check programming.
Check serial bus
when programming
i.e. clock/data/enable
activity (IC740 pins
18, 19 & 17). N
Check loop filter components
R775, C774, C776, R510,
C505, IC750. Is the supply
to IC750 +20V +4, -2V?
Check regulator circuitry.
Check C772, R774, R772,
C770, R763 & Q790.
Check Q760, Q780,
R766 & C765.
Check charge pump components
(Q775 & Q780) and Q790.
Check R762 & C762.
Check the signal path from
the VCO to synthesiser.
Measure the frequency from
the VCO at IC740 pin 11 using
a frequency counter.
Is the level >-10dBm?
Does the frequency adjust
as the VCO trimmer is
adjusted (out of lock)?
Check VCO.
Y
Y
Y
Signal
Y
Y
Y
No signal
Replace synthesiser
(IC740).
Y
N Y
Y
N
N
N
N
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.
Is the charge pump bias
voltage at the base of
Q760 & Q780 between
3.5 and 5V? (5V when locked)
N
Is the voltage on C762,
R760, and R758 9V ±0.2V?
Is the loop filter reference
voltage at C772 (+) 6.5V ±0.2V?
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).
Replace synthesiser
(IC740).
Continued from previous page
B
Is the charge pump voltage
on Q790 gate between
3 and 8.5V? (6.5V ±0.2V locked)
Is reference
clock present
at IC740 pin 20
(200kHz >4.5Vpp)?
Check microcontroller
section (IC810).
N
Is reference
clock present
at IC730 pin 12
(200kHz >4.5Vpp)?
Is reference
clock present
at IC730 pin 1
(12.8MHz >4.0Vpp)?
Check TCXO (IC700)
and buffers (IC710).
N
N
Y
Y
Check phase
modulator sections:
IC720, Q710, Q720,
D710, Q730, Q740,
D720.
Check divider
IC730.
C5.14
T856/857 Fault Finding
M850-00
31/09/98 Copyright TEL
Y
N
Y
Y
Correct DC V
present on Q1 VCO?
N
Check inductors,
biasing resistors
& Q1.
Replace if faulty.
Go to B.
Loop filter &
components around
op. amp. (IC750) OK?
N
Noisy synth;
poor residual FM.
C
Isolate audio
modulation on VCO;
still noisy? Trace audio fault.
Y
Y
N
Y
Y
Y
Change trimmer;
still noisy?
Change Q1;
still noisy?
Change TCXO;
still noisy?
Change varactors;
still noisy?
Replace VCO
assembly.
Synthesiser OK.
N
N
N
N
Y
VCO phase locked?
3-16V present on
control line?
M850-00
T856/857 Fault Finding
C5.15
Copyright TEL 31/09/98
5.7.4 T856 Drive Amplifier
10.5V on Q315
collector?
Check continuity
of power rails
& DC paths to
Q365 & Q370.
Check signal
path to output
incl. output
socket (SK310).
Key exciter
& lock
synthesiser.
NN
YY
Y
Check VCO.
N
Y
Y
N
Y
Y
N
Y
N
Y
Check 9V &
13.8V supplies.
Check
regulators.
Check temp.
shutdown
circuit.
N
Y
N
Y
N
Y
10.5V on Q350
collector?
10.5V on Q355
collector?
13.8V on
IC350 pin 8?
11.5V on
IC350 pin 7?
N
Check lock det.
path back to
synth. IC740,
IC750, Q325.
Check TP305
>+8V.
Check TP320
<0.6V.
Check Q310,
Q315 circuitry
& IC350.
>2V RF at
VCO output?
>1V RF
at R381?
NCheck attenuator
pad #R517, #R518,
#R519.
>0.5V RF at
Q350 base?
Check C355, C358,
C360, Q350, D340,
D380, D360, L320.
NCheck Q350.
>1V RF at
Q355 base?
Check signal
path between
Q350 & Q355.
>6V RF at
Q355 collector? Check Q355.
>5V RF at
C362, #R395?
C5.16
T856/857 Fault Finding
M850-00
31/09/98 Copyright TEL
5.7.5 T856 PA & Power Control
Check IC330,
Q310, Q315
& circuitry,
+13.8V supply.
Refer to Drive Amp.
Fault Findin
g
Chart. Check supply
circuitry.
Tx deliverin
g
full power
(>30W)?
Set RV320
(power adjust)
fully clockwise;
synth. locked;
key Tx.
Y
NY
NN
Y
N
Y
N
NY
Y
Y
Y
Power control
circuitry OK.
Note:
c/w = clockwise
cc/w = counterclockwise
or anticlockwise
Check Q410,
Q420 & circuitry,
LP filter.
10.8V
at L310? Check drive at
SK310 >1.5W. Check +13.8V at
Q410 & Q420.
<2V on
IC350 pin 6?
Turn RV310 ccw.
Check power
drops to zero
slowly in a
controlled manner.
Does variation
of RV310
cause either
full power
or no power?
Check for break
in power sense
circuitry; directional
coupler D420,
D440 & circuitry.
Set RV310 so that
output power = 25W;
check L310 approx. 7.5V.
Momentarily remove
Tx load. Volta
g
e at
L310 decreases to
approx. 5V?
Check lock det. circuit;
TP305 should be >8V.
Check temp. shutdown
circuit (IC350);
TP320 should be <0.6V.
Check Q320, RV330.
Normal operating conditions:
Forward power = 4.7V approx.
Reverse power = 0.7V approx.
IC350 pin 6 = 2.02V
IC350 pin 5 = 2V
IC350 pin 7 = 8.63V
M850-00
T856/857 Fault Finding
C5.17
Copyright TEL 31/09/98
5.7.6 T857 Exciter Drive Amplifier
Check
power rails.
Check VCO.
Drive amp. OK.
N
N
Y
Y
N
Y
Y
N
Y
N
Y
9V at Q304 collector?
0.5V at Q304 base?
9V at Q305 collector?
Key exciter &
lock synthesiser.
Y
N9V at Q303
collector?
Y
>4V present on
IC300 pin 1? Check IC300.
Check Q302
& Q303.
>2V RF at
VCO output?
N
>1V RF at R323? N
Y
Check attenuator pad
R517, R518, R519.
>0.5V RF at
Q304 base?
Check C314, #C315,
#C316, Q304, L305,
D201, D202, D203.
>5V RF at
#C321, #R330?
NCheck Q304.
>1V RF at
Q305 base? Check si
g
nal path
between Q304 & Q305.
>5V RF at
Q305 collector? Check Q305.
C5.18
T856/857 Fault Finding
M850-00
31/09/98 Copyright TEL
5.7.7 Audio Processor
N
IC240 pin 6
at 9V?
Key exciter &
lock synthesiser.
Connect 1kHz audio
to external CTCSS input.
Does exciter
modulate? Audio output at
IC260 pin 8?
NY
Check audio path to
VCO control line.
Check alignment
of modulators.
YN
Audio output at
IC260 pin 1?
YCheck buffer IC260
pins 8, 9 & 10.
N
Audio output at
IC260 pin 7?
Check low pass
filter stage IC260
pins 1, 2 & 3.
Y
Check stage IC260
pins 5, 6 & 7.
N
Demodulated audio
frequency response
flat between 50 & 300Hz?
Y
Check low
pass filter
stage IC260
pins 1, 2 & 3.
N
N
Y
Audio frequency
response IC260
pin 1 flat 300Hz
to 2kHz?
Audio frequency
response IC210
pin 8 6dB/octave
slope?
Check integrator
IC210 pins 8, 9, & 10.
N
Y
Audio superimposed
on 200kHz signal
IC720 pins 9 & 3 (synth)?
Check audio path
between integrator
& phase modulator.
N
Y
200kHz clipped
triangle wave at
IC720 pins 8 & 4?
Check IC720, Q710, Q720,
Q730, Q740, D710, D720,
C727, C729, C724 & C725
N
Y
Check loop filter
(IC750, pins 5, 6 & 7)
& associated
components.
Select standard
audio configuration.
Check pre-emphasis
network IC230 pins 12,
13 & 14 &/or low pass
filter IC260 pins 1, 2 & 3.
N
Y
Connect audio
to line input;
key exciter.
Does exciter
modulate?
YN
Demodulated
audio frequency
response as per
Section 4.5?
Audio processor
OK.
Audio signal at
IC210 pin 14?
Y
N
Audio signal at
IC230 pin 1?
N
Audio signal at
IC230 pin 14?
Y
N
Audio signal at
IC240 pin 4?
Y
N
Y
Check Q260 is not faulty or
being turned on inadvertently.
Y
Check audio path between
limiter IC210 pin 14 &
summing amp. IC260 pin 7.
Check IC210
pins 12, 13 & 14.
Check IC230 pins 1, 2 & 3 or
audio path between pre-
emphasis network & limiter.
Check IC230 pins 12, 13 & 14
or audio path between multiplexer
& pre-emphasis network.
Check IC240 or audio
path between line trans-
former & multiplexer.
M850-00
T856/857 Fault Finding
C5.19
Copyright TEL 31/09/98
5.8 To Replace The T856 PA Transistors
(Q410 & 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 perform-
ance, 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 (meas-
urement "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.
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.
base collector
measurement A
C5.20
T856/857 Fault Finding
M850-00
31/09/98 Copyright TEL
Q410 Only: 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.
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: Lightly solder one tab to the PCB, then torque down the retain-
ing nut to the correct torque (0.7Nm/6lb-in.).
Caution:
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.
M850-00
T856/857 PCB Information
C6.1.1
Copyright TEL 31/09/98
6 T856/857 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 T856 transmitter and T857 exciter:
•parts lists
• grid reference indexes
• mechanical assembly drawings
•PCB layouts
• test points & options connections drawings
• circuit diagrams.
Section Title IPN Page
6.1 Introduction 6.1.3
6.2 T856 Transmitter PCB 220-01397-01 6.2.1
6.3 T857 Exciter PCB 220-01398-02 6.3.1
M850-00
T856/857 PCB Information
C6.1.3
Copyright TEL 31/09/98
6.1 Introduction
Product Type Identification
You can identify the transmitter or exciter type by checking the product code printed on a label on
the rear of the chassis (product codes are explained in Section 1.3 in this Part of the manual, and Fig-
ure 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
T856-10-XXXX.
Note:
The only function of this resistor is to indicate the product type. It has no effect on the
circuitry or operation of the transmitter or exciter.
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 there-
fore 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.
856-30 PRODUCT TYPE
856-35 856-10 856-20
856- 856-13 856-23
PRODUCT TYPE 856-15 856-25
C6.1.4
T856/857 PCB Information
M850-00
31/09/98 Copyright TEL
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 refer-
ence (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:
The miscellaneous and mechanical section lists the variant and common parts in IPN order.
Parts List Amendments
At the front of the parts list is the Parts List Amendments box (an example of which is shown
below). This box contains a list of component changes which took place after the parts list and dia-
grams in this section were compiled. These changes (e.g. value changes, added/deleted compo-
nents, etc.) are listed by circuit reference in alphanumeric order and supersede the information
given in the parts list or diagrams. Components without circuit references are listed in IPN order.
The number in brackets at the end of each entry refers to the Tait internal Change Order document.
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
Internal Part Number -
order the component
b
y
this number
description -
gives a brief description
of the component
Parts List Amendments
R306 Changed from 180Ωto 560Ω(036-13560-00) to increase sensitivity (71003).
circuit reference
or IPN description
of change
IPN of new
component Change Order
number
M850-00
T856/857 PCB Information
C6.1.5
Copyright TEL 31/09/98
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 Series II products:
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 alpha-
numeric order, along with the appropriate alphanumeric grid references, as shown below:
If the variant prefix is. . . the component will. . .
& change according to channel spacing
= change according to frequency stability
# change according to frequency range
% be placed or unplaced for special applications
*be unplaced in one product
(where two products share the same PCB)
circuit diagram
reference
PCB layout
reference
components listed
in alphanumeric order
layer number -
1 = top side layer
2 = bottom side layer
component location
on the layer
sheet number
component location
on the sheet
C6.1.6
T856/857 PCB Information
M850-00
31/09/98 Copyright TEL
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 num-
bers 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).
C301
4N7
R303
12
D
S
G
L310
33U
IF-SIG
4R4
C369
100P
C371
10U
R339
100K
%R338
100
DISCRIMINATOR
1R3
2R9
2R9
8A2
t
hese grid references
s
how where the circuit
is continued
M850-00
T856 PCB Information
C6.2.1
Copyright TEL 31/09/98
6.2 T856 Transmitter PCB
This section contains the following information.
IPN Section Page
220-01397-01 Parts List
Mechanical & Miscellaneous Parts
Mechanical Assembly
Grid Reference Index
PCB Layout - Top Side
PCB Layout - Bottom Side
Test Points & Options Connections - Top Side
Test Points & Options Connections - Bottom Side
Transmitter Overview Diagram
Audio Processor Circuit Diagram
Exciter Circuit Diagram
PA Circuit Diagram
VCO Section Circuit Diagram
Regulators Circuit Diagram
Synthesiser Circuit Diagram
Microcontroller Circuit Diagram
Harmonic Filter Circuit Diagram
6.2.3
6.2.10
6.2.11
6.2.13
6.2.17
6.2.18
6.2.19
6.2.20
6.2.21
6.2.22
6.2.23
6.2.24
6.2.25
6.2.26
6.2.27
6.2.28
6.2.29
IPN 220-01397-01
M850-00
T856 PCB Information
C6.2.3
Copyright TEL 31/09/98
T856 Parts List (IPN 220-01397-01)
How To Use This Parts List
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: the circuit reference, variant (if applicable), IPN and description. A number in the variant col-
umn indicates that this is a variant component which is fitted only to the product type listed. Static sensitive devices are indicated by
an (S) at the start of the description column.
The miscellaneous and mechanical section lists the variant and common parts in IPN order. Where possible, a number in the legend
column indicates their position in the mechanical assembly drawing.
The Parts List Amendments box below lists component changes that took place after the parts list and diagrams in this section were
compiled. These changes (e.g. value changes, added/deleted components, etc.) are listed by circuit reference in alphanumeric order
and supersede the information given in the parts list or diagrams. Components without circuit references are listed in IPN order.
Parts List Amendments
#C930, #C960 400-440MHz (-10, -13 & -15): deleted to improve output power (710296 and 710359).
IC710 Changed from 74HCV04 (IPN 002-74910-04) to 74HC04 (IPN 002-74900-04) to increase the gain of the TCXO
buffer (710312).
L345 -10 type only: rewired and placed on its side to improve output power (710296).
L355 400-440MHz (-10, -13 & -15): changed from 1.5T/2.5mm coil (052-08125-15) to 1.5T/3.5mm coil (052-08135-15)
to regulate output power; circuit reference also changed to #L355 (710284).
New Product
Types
The following component changes apply to the T856-16-0000/26-0000/36-0000 Product Types:
&C269 changed to 4p7 (IPN 015-21470-01)
C271 changed to 56p (IPN 015-22560-01) - circuit reference changed to &C271
C289 changed to 68n (IPN 015-25680-08) - circuit reference changed to &C289
R290 changed to 680Ω (IPN 036-13680-00) - circuit reference changed to &R290.
303-11169-03 T800 chassis: replaced by 303-11169-04
312-01052-01 T800 top lid: replaced by 312-01052-02
312-01053-01 T800 bottom lid: replaced by 312-01053-02
319-01173-00 D-range shield: deleted
319-01174-00 N-type connector shield: deleted
Chassis Screws The Pozidriv screws securing the rear panel connectors and cover plate were replaced by Torx head screws when
the shields were deleted.
New chassis and lid tooling introduced, incorporating
mechanical improvements and better RF shielding
(750027, 750028 & 750029). Note that the new lids
should be used only with the new chassis.
no longer required with new chassis and lids (710427).
IPN 220-01397-01
C6.2.4
T856 PCB Information
M850-00
31/09/98 Copyright TEL
Ref Var IPN Description Ref Var IPN Description
C201 020-07470-92 CAP BI-P RA 4M7 50V 6X11 5 LS
C202 020-07470-92 CAP BI-P RA 4M7 50V 6X11 5 LS
C204 020-07470-92 CAP BI-P RA 4M7 50V 6X11 5 LS
C205 020-07470-92 CAP BI-P RA 4M7 50V 6X11 5 LS
C207 014-07470-00 CAP TANT CHIP 4U7 3.5 X 2.8MM
C209 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C210 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C211 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C213 014-08100-00 CAP TANT CHIP 10M 16VW +-20%
C215 014-08220-01 (L)CAP TANT 22UF10V276MSER
C217 015-24220-08 CAP CER 0805 2N2 10% X7R 50V
C219 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C221 014-08220-01 (L)CAP TANT 22UF10V276MSER
C223 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C225 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C227 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C229 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C230 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C232 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C233 016-08470-01 CAP EL SMD 6*4 47U 16V
C235 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C237 014-07100-02 CAP TANT CHIP 1U0 3.2 X 1.6MM
C239 020-07470-92 CAP BI-P RA 4M7 50V 6X11 5 LS
C241 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C242 014-08100-00 CAP TANT CHIP 10M 16VW +-20%
C243 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C245 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C247 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C249 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C251 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C253 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C255 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C257 015-22470-01 CAP CER 0805 47P 5% NPO 50V
C259 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C260 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C261 014-07470-00 CAP TANT CHIP 4U7 3.5 X 2.8MM
C263 020-09100-04 CAP ELE RA 100M 10V 6.3X9MM
C265 020-07470-92 CAP BI-P RA 4M7 50V 6X11 5 LS
C267 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
&C269 10 015-21150-01 CAP CER 0805 1P5+-1/4P NPO 50V
&C269 13 015-21150-01 CAP CER 0805 1P5+-1/4P NPO 50V
&C269 15 015-21470-01 CAP CER 0805 4P7+-1/4P NPO 50V
&C269 20 015-21150-01 CAP CER 0805 1P5+-1/4P NPO 50V
&C269 23 015-21150-01 CAP CER 0805 1P5+-1/4P NPO 50V
&C269 25 015-21470-01 CAP CER 0805 4P7+-1/4P NPO 50V
&C269 30 015-21150-01 CAP CER 0805 1P5+-1/4P NPO 50V
&C269 35 015-21470-01 CAP CER 0805 4P7+-1/4P NPO 50V
C271 015-22470-01 CAP CER 0805 47P 5% NPO 50V
C273 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C275 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C277 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C279 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C281 015-25220-08 CAP CER 0805 22N 10% X7R 50V
C283 015-21470-01 CAP CER 0805 4P7+-1/4P NPO 50V
C285 015-21470-01 CAP CER 0805 4P7+-1/4P NPO 50V
C287 020-09100-04 CAP ELE RA 100M 10V 6.3X9MM
C289 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C291 014-08220-01 (L)CAP TANT 22UF10V276MSER
C293 015-27100-10 CAP CER 0805 1M+80-20% Y5V 16V
%C294 015-22470-01 CAP CER 0805 47P 5% NPO 50V
%C295 022-06470-02 CAP MYLAR 470N 10% 50V
C300 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C301 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C302 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C303 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C304 014-08100-00 CAP TANT CHIP 10M 16VW +-20%
C305 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C306 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C307 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C308 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C309 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C310 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C311 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C312 015-23100-01 CAP CER 0805 100P 5% NPO 50V
C313 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C314 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C315 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C316 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C317 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C318 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C320 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C324 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C326 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C327 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C328 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C329 020-07470-04 CAP ELE RA 4M7 25V 20%8X13 SOL
C330A 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C330B 016-08100-01 CAP EL 6X4 10M 20% 16V
C331 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C332 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C333 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C334 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C335 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C336 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C337 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C338 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C339 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C340 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C341 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C342 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C343 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C344 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C345 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C346 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C347 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C348 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C349 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C350A 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C350B 016-08100-01 CAP EL 6X4 10M 20% 16V
C351 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C352 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C353 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C354 015-22220-01 CAP CER 0805 22P 5% NPO 50V
C355 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C356 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C358 015-22120-01 CAP CER 0805 12P 5% NPO 50V
C360 015-22330-01 CAP CER 0805 33P 5% NPO 50V
C362 015-22100-01 CAP CER 0805 10P+-1/2P NPO 50V
C364 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C366 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C368 015-22120-01 CAP CER 0805 12P 5% NPO 50V
C370A 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C370B 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C370C 014-07470-00 CAP TANT CHIP 4U7 3.5 X 2.8MM
C371 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C372 014-07470-00 CAP TANT CHIP 4U7 3.5 X 2.8MM
C373 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C380 015-22330-01 CAP CER 0805 33P 5% NPO 50V
#C382 10 015-21390-01 CAP CER 0805 3P9+-1/4P NPO 50V
#C382 13 015-21390-01 CAP CER 0805 3P9+-1/4P NPO 50V
#C382 15 015-21390-01 CAP CER 0805 3P9+-1/4P NPO 50V
#C382 20 015-21220-01 CAP CER 0805 2P2+-1/4P NPO 50V
#C382 23 015-21220-01 CAP CER 0805 2P2+-1/4P NPO 50V
#C382 25 015-21220-01 CAP CER 0805 2P2+-1/4P NPO 50V
#C382 30 015-21220-01 CAP CER 0805 2P2+-1/4P NPO 50V
#C382 35 015-21220-01 CAP CER 0805 2P2+-1/4P NPO 50V
C383 015-23150-01 CAP CER 0805 150P 5% NPO 50V
#C384 10 015-22120-01 CAP CER 0805 12P 5% NPO 50V
#C384 13 015-22120-01 CAP CER 0805 12P 5% NPO 50V
#C384 15 015-22120-01 CAP CER 0805 12P 5% NPO 50V
#C384 20 015-21680-01 CAP CER 0805 6P8+-1/4P NPO 50V
#C384 23 015-21680-01 CAP CER 0805 6P8+-1/4P NPO 50V
#C384 25 015-21680-01 CAP CER 0805 6P8+-1/4P NPO 50V
#C384 30 015-21560-01 CAP CER 0805 5P6+-1/4P NPO 50V
#C384 35 015-21560-01 CAP CER 0805 5P6+-1/4P NPO 50V
C385 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C405 015-22120-01 CAP CER 0805 12P 5% NPO 50V
#C410 10 029-02390-02 CAP MICA 5 CASE 39P 5%
#C410 13 029-02390-02 CAP MICA 5 CASE 39P 5%
#C410 15 029-02390-02 CAP MICA 5 CASE 39P 5%
#C410 20 029-02390-02 CAP MICA 5 CASE 39P 5%
#C410 23 029-02390-02 CAP MICA 5 CASE 39P 5%
#C410 25 029-02390-02 CAP MICA 5 CASE 39P 5%
#C410 30 029-02330-02 CAP MICA 5 CASE 33P 5%
#C410 35 029-02330-02 CAP MICA 5 CASE 33P 5%
C415 029-02330-02 CAP MICA 5 CASE 33P 5%
C419 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C420 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C421 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C430 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C435 016-08470-01 CAP EL SMD 6*4 47U 16V
C438 029-02680-02 CAP MICA 5 CASE 68P 5%
#C440 10 029-02390-02 CAP MICA 5 CASE 39P 5%
#C440 13 029-02390-02 CAP MICA 5 CASE 39P 5%
#C440 15 029-02390-02 CAP MICA 5 CASE 39P 5%
#C440 20 029-02390-02 CAP MICA 5 CASE 39P 5%
#C440 23 029-02390-02 CAP MICA 5 CASE 39P 5%
#C440 25 029-02390-02 CAP MICA 5 CASE 39P 5%
#C440 30 029-02330-02 CAP MICA 5 CASE 33P 5%
#C440 35 029-02330-02 CAP MICA 5 CASE 33P 5%
#C445 10 029-02390-02 CAP MICA 5 CASE 39P 5%
#C445 13 029-02390-02 CAP MICA 5 CASE 39P 5%
#C445 15 029-02390-02 CAP MICA 5 CASE 39P 5%
#C445 20 029-02330-02 CAP MICA 5 CASE 33P 5%
#C445 23 029-02330-02 CAP MICA 5 CASE 33P 5%
#C445 25 029-02330-02 CAP MICA 5 CASE 33P 5%
#C445 30 029-02330-02 CAP MICA 5 CASE 33P 5%
#C445 35 029-02330-02 CAP MICA 5 CASE 33P 5%
C450 015-03100-02 CAP CER HIQ1210 100P 5%NPO200V
C455 020-07470-02 CAP ELE RAD 4M7 50V 5X11MM
#C460 10 029-02220-02 CAP MICA 5 CASE 22P 5%
#C460 13 029-02220-02 CAP MICA 5 CASE 22P 5%
Note: %D205 and %D210 are optional level limiting diodes for
special applications.
=R705 (47 ohm) and =SK710 are fitted in place of
=IC700 when an external frequency reference is used.
These two components are supplied with the auxiliary
D-range kits (T800-06-0000 & T800-06-0001).
IPN 220-01397-01
M850-00
T856 PCB Information
C6.2.5
Copyright TEL 31/09/98
Ref Var IPN Description Ref Var IPN Description
#C460 15 029-02220-02 CAP MICA 5 CASE 22P 5%
#C460 20 029-02270-02 CAP MICA 5 CASE 27P 5%
#C460 23 029-02270-02 CAP MICA 5 CASE 27P 5%
#C460 25 029-02270-02 CAP MICA 5 CASE 27P 5%
#C460 30 029-02220-02 CAP MICA 5 CASE 22P 5%
#C460 35 029-02220-02 CAP MICA 5 CASE 22P 5%
#C465 10 029-02220-02 CAP MICA 5 CASE 22P 5%
#C465 13 029-02220-02 CAP MICA 5 CASE 22P 5%
#C465 15 029-02220-02 CAP MICA 5 CASE 22P 5%
#C465 20 029-02270-02 CAP MICA 5 CASE 27P 5%
#C465 23 029-02270-02 CAP MICA 5 CASE 27P 5%
#C465 25 029-02270-02 CAP MICA 5 CASE 27P 5%
#C465 30 029-02220-02 CAP MICA 5 CASE 22P 5%
#C465 35 029-02220-02 CAP MICA 5 CASE 22P 5%
C470 015-03100-03 CAP CER 100P 5% NPO500V GRH111
#C480 10 NOT PLACED
#C480 13 NOT PLACED
#C480 15 NOT PLACED
#C480 20 015-01470-02 CAP CER HIQ1210 4P7 5% NPO200V
#C480 23 015-01470-02 CAP CER HIQ1210 4P7 5% NPO200V
#C480 25 015-01470-02 CAP CER HIQ1210 4P7 5% NPO200V
#C480 30 NOT PLACED
#C480 35 NOT PLACED
C481 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C485 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C490 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C493 015-03100-03 CAP CER 100P 5% NPO500V GRH111
C496 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C499 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C501 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C502 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C503 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C504 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C505 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C507 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C508 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C509 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C510 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C512 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C513 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C514 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C516 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C517 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C519 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C525 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C530 014-08220-01 (L)CAP TANT 22UF10V276MSER
C535 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C537 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C605 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C610A 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C610B 020-09100-04 CAP ELE RA 100M 10V 6.3X9MM
C611A 020-09100-04 CAP ELE RA 100M 10V 6.3X9MM
C611B 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C620 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C621 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C623 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C625 020-09470-07 CAPEL470M16V20%V 8*20 3.5L.ESR
C626 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C628 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C630 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C631A 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C634 014-08100-00 CAP TANT CHIP 10M 16VW +-20%
C636 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C638 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C640 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C655 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C660 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C665 020-58100-03 CAP ELE AI RDL 10M 50V 5X11MM
C670 025-07330-01 CAP TANT BEAD 3M3 35V
C673 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C677 020-07100-02 CAP ELE RA 1M 50V 5X11MM
C681 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C684 014-08100-00 CAP TANT CHIP 10M 16VW +-20%
C687 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C690 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C693 014-08100-00 CAP TANT CHIP 10M 16VW +-20%
C700 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C701 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C703 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C705 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
C706 015-22470-01 CAP CER 0805 47P 5% NPO 50V
C708 014-07470-00 CAP TANT CHIP 4U7 3.5 X 2.8MM
C709 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C710 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C712 015-22470-01 CAP CER 0805 47P 5% NPO 50V
C720 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C722 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C724 014-08220-01 (L)CAP TANT 22UF10V276MSER
C725 014-08220-01 (L)CAP TANT 22UF10V276MSER
C726 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C727 015-23220-01 CAP CER 0805 220P 5% NPO 50V
C729 015-23220-01 CAP CER 0805 220P 5% NPO 50V
%C733 015-23470-08 CAP CER 0805 470P 10% X7R 50V
C735 015-22470-01 CAP CER 0805 47P 5% NPO 50V
C736 015-22470-01 CAP CER 0805 47P 5% NPO 50V
C740A 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C740B 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C741A 014-07470-00 CAP TANT CHIP 4U7 3.5 X 2.8MM
C741B 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C742A 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C742B 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C743 015-22470-01 CAP CER 0805 47P 5% NPO 50V
C745 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C750A 025-08100-03 CAP 10M 35V 20% TANT 5MM L/S
C750B 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C757 015-25220-08 CAP CER 0805 22N 10% X7R 50V
C759 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C761 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C762 014-08220-01 (L)CAP TANT 22UF10V276MSER
C763 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C764 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C765 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C766 014-07470-00 CAP TANT CHIP 4U7 3.5 X 2.8MM
C767 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C768 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C769 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C770 014-08220-01 (L)CAP TANT 22UF10V276MSER
C772 014-08220-01 (L)CAP TANT 22UF10V276MSER
C774 022-06100-16 CAP METAL POLY 100N +-10% 100V
C776 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C782 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C784 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C786 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C788 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C790 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
C792 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C810 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C812 015-23100-01 CAP CER 0805 100P 5% NPO 50V
C813 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C822 014-07470-00 CAP TANT CHIP 4U7 3.5 X 2.8MM
C823 015-25220-08 CAP CER 0805 22N 10% X7R 50V
C824 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C826 015-23220-01 CAP CER 0805 220P 5% NPO 50V
C827 015-22330-01 CAP CER 0805 33P 5% NPO 50V
C828 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C830 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C838 020-09100-04 CAP ELE RA 100M 10V 6.3X9MM
C841 020-09100-04 CAP ELE RA 100M 10V 6.3X9MM
C844 015-25100-08 CAP CER 0805 10N 10% X7R 50V
#C900 10 015-01560-06 CAP CER 1210 5P6 NPO500VGRM42
#C900 13 015-01560-06 CAP CER 1210 5P6 NPO500VGRM42
#C900 15 015-01560-06 CAP CER 1210 5P6 NPO500VGRM42
#C900 20 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C900 23 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C900 25 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C900 30 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C900 35 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
C910 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C920 10 015-01470-06 CAP CER 1210 4P7 NPO500VGRM42
#C920 13 015-01470-06 CAP CER 1210 4P7 NPO500VGRM42
#C920 15 015-01470-06 CAP CER 1210 4P7 NPO500VGRM42
#C920 20 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C920 23 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C920 25 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C920 30 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C920 35 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C930 10 015-21100-01 CAP CER 0805 1PO+-1/4P NPO 50V
#C930 13 015-21100-01 CAP CER 0805 1PO+-1/4P NPO 50V
#C930 15 015-21100-01 CAP CER 0805 1PO+-1/4P NPO 50V
#C930 20 NOT PLACED
#C930 23 NOT PLACED
#C930 25 NOT PLACED
#C930 30 NOT PLACED
#C930 35 NOT PLACED
C940 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C950 10 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C950 13 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C950 15 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C950 20 015-01470-06 CAP CER 1210 4P7 NPO500VGRM42
#C950 23 015-01470-06 CAP CER 1210 4P7 NPO500VGRM42
#C950 25 015-01470-06 CAP CER 1210 4P7 NPO500VGRM42
#C950 30 015-01470-06 CAP CER 1210 4P7 NPO500VGRM42
#C950 35 015-01470-06 CAP CER 1210 4P7 NPO500VGRM42
#C960 10 015-21100-01 CAP CER 0805 1PO+-1/4P NPO 50V
#C960 13 015-21100-01 CAP CER 0805 1PO+-1/4P NPO 50V
#C960 15 015-21100-01 CAP CER 0805 1PO+-1/4P NPO 50V
#C960 20 NOT PLACED
#C960 23 NOT PLACED
#C960 25 NOT PLACED
#C960 30 NOT PLACED
#C960 35 NOT PLACED
C970 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C980 10 015-01470-06 CAP CER 1210 4P7 NPO500VGRM42
#C980 13 015-01470-06 CAP CER 1210 4P7 NPO500VGRM42
#C980 15 015-01470-06 CAP CER 1210 4P7 NPO500VGRM42
#C980 20 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C980 23 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C980 25 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C980 30 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C980 35 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C990 10 015-01560-06 CAP CER 1210 5P6 NPO500VGRM42
#C990 13 015-01560-06 CAP CER 1210 5P6 NPO500VGRM42
#C990 15 015-01560-06 CAP CER 1210 5P6 NPO500VGRM42
#C990 20 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C990 23 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C990 25 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
IPN 220-01397-01
C6.2.6
T856 PCB Information
M850-00
31/09/98 Copyright TEL
Ref Var IPN Description Ref Var IPN Description
#C990 30 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#C990 35 015-01390-06 CAP CER 1210 3P9 NPO500VGRM42
#CV475 10 028-02160-03 CAP TRM 2/16P
#CV475 13 028-02160-03 CAP TRM 2/16P
#CV475 15 028-02160-03 CAP TRM 2/16P
#CV475 20 028-02100-03 CAP TRM 2/10P
#CV475 23 028-02100-03 CAP TRM 2/10P
#CV475 25 028-02100-03 CAP TRM 2/10P
#CV475 30 028-02100-03 CAP TRM 2/10P
#CV475 35 028-02100-03 CAP TRM 2/10P
D111 001-00011-60 S) DIODE SR2607 -- USE MR750
D220 001-10000-99 S) DIODE SMD BAV99 D-SW SOT23
D230 001-00010-40 S) DIODE ZENER 33V 1.3W
D240 001-10000-56 S) DIODE SMD BAW56 D-SW SOT23
D250 001-10000-56 S) DIODE SMD BAW56 D-SW SOT23
D260 001-10000-56 S) DIODE SMD BAW56 D-SW SOT23
D270 001-10000-99 S) DIODE SMD BAV99 D-SW SOT23
D340 001-10000-18 S) DIODE SMD BAT18 S-SW SOT23
D360 001-10000-18 S) DIODE SMD BAT18 S-SW SOT23
D380 001-10000-18 S) DIODE SMD BAT18 S-SW SOT23
D420 001-00013-45 S) DIODE SCHTTKY 1SS97/2
D440 001-00013-45 S) DIODE SCHTTKY 1SS97/2
D510 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23
D610 001-10000-99 S) DIODE SMD BAV99 D-SW SOT23
D620 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23
D630 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23
D635 001-10065-00 DIODE BAT65 SCHOTTKEY SOD123
D640 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23
D710 001-10000-99 S) DIODE SMD BAV99 D-SW SOT23
D720 001-10000-99 S) DIODE SMD BAV99 D-SW SOT23
D730 001-10065-00 DIODE BAT65 SCHOTTKEY SOD123
D740 001-10065-00 DIODE BAT65 SCHOTTKEY SOD123
D810 001-10065-00 DIODE BAT65 SCHOTTKEY SOD123
IC210 002-10003-24 S) IC SMD 324 4X O-AMP SO14
IC220 002-10126-70 S) IC SMD DS1267S10K 2XDIG POT
IC230 002-10003-24 S) IC SMD 324 4X O-AMP SO14
IC240 002-10040-53 S)MC14053B SMD BREAK B4 MAKE
IC250 002-00020-50 S) IC 4N25A OPTOCOUPLER
IC260 002-10003-24 S) IC SMD 324 4X O-AMP SO14
IC330 002-10003-58 S) IC SMD LM358 DUAL O-AMP
IC350 002-10003-58 S) IC SMD LM358 DUAL O-AMP
IC370 002-12951-00 IC SMD LP2951CM ADJ VLTGE REG
IC610 002-00014-58 S) IC 78L05 5V 100MA REG TO92
IC630 002-00014-62 S) IC 317L 100MA REG 3TER TO92
IC640 002-10003-58 S) IC SMD LM358 DUAL O-AMP
IC650 002-10012-32 SMD DS1232LPS-2 LP RESET&W-DOG
=IC700 539-00010-50 TCXO 12.8MHZ +-1PPM -20 +70C
IC710 002-74900-04 S) IC SMD 74HC04D 6X INV BUFFD
IC720 002-74910-04 S) IC SMD 74HCU04 6X INV
IC730 002-10045-20 S) IC SMD 74HC4520T 2XCTR 4BIT
IC740 002-14519-10 S) IC MC145191F SMD SYNTH
IC750 002-10330-78 S) IC MC33078D 2X AMP LO NOISE
IC810 002-08951-20 S) IC AT89C51 PLCC44 MIC 12MHZ
IC820 002-12416-00 S)IC SMD AT24C16N-10SC EEPROM
IC830 002-10003-24 S) IC SMD 324 4X O-AMP SO14
L302 057-10120-03 IND 805 EMI SUP 120E@100M 0.2A
L303 057-10120-03 IND 805 EMI SUP 120E@100M 0.2A
L304 056-10330-02 (L) IND SMD 330NH
L305 065-00010-04 BEAD FERR F8 4X2X5MM
L310 065-00010-04 BEAD FERR F8 4X2X5MM
L315 052-08130-65 COIL A/W 6.5T/3.0MM HOR 0.8MM
L320 056-10330-02 (L) IND SMD 330NH
L333 057-10120-03 IND 805 EMI SUP 120E@100M 0.2A
L334 057-10120-03 IND 805 EMI SUP 120E@100M 0.2A
L335 052-08130-25 COIL A/W 2.5T/3.0MM HOR 0.8MM
L345 065-00010-01 BEAD FERR 3B 6 HOLE
L355 052-08125-15 COIL A/W 1.5T/2.5MM HOR 0.8MM
L405 052-08125-15 COIL A/W 1.5T/2.5MM HOR 0.8MM
L410 052-08160-15 COIL A/W 1.5T/6.0MM HOR 0.8MM
L415 065-00010-04 BEAD FERR F8 4X2X5MM
L420 065-00010-04 BEAD FERR F8 4X2X5MM
L425 056-00021-04 IND FXD 330NH AX
L430 065-00010-04 BEAD FERR F8 4X2X5MM
L435 052-08160-15 COIL A/W 1.5T/6.0MM HOR 0.8MM
L445 052-08130-35 COIL A/W 3.5T/3.0MM HOR 0.8MM
L450 065-00010-04 BEAD FERR F8 4X2X5MM
L460 065-00010-04 BEAD FERR F8 4X2X5MM
L465 051-00005-53 COIL TAIT NO553 A/W 10MM LINK
L475 051-00005-56 COIL NO556 13MM FRMD COP STRP
L480 056-10330-02 (L) IND SMD 330NH
L481 056-10330-02 (L) IND SMD 330NH
L485 056-10330-02 (L) IND SMD 330NH
L520 057-10120-03 IND 805 EMI SUP 120E@100M 0.2A
L610 056-00021-04 IND FXD 330NH AX
L620 065-00010-04 BEAD FERR F8 4X2X5MM
L750 052-08125-15 COIL A/W 1.5T/2.5MM HOR 0.8MM
#L910 10 052-08150-15 COIL A/W 1.5T/5.0MM HOR 0.8MM
#L910 13 052-08150-15 COIL A/W 1.5T/5.0MM HOR 0.8MM
#L910 15 052-08150-15 COIL A/W 1.5T/5.0MM HOR 0.8MM
#L910 20 052-08145-15 COIL A/W 1.5T/4.5MM HOR 0.8MM
#L910 23 052-08145-15 COIL A/W 1.5T/4.5MM HOR 0.8MM
#L910 25 052-08145-15 COIL A/W 1.5T/4.5MM HOR 0.8MM
#L910 30 052-08145-15 COIL A/W 1.5T/4.5MM HOR 0.8MM
#L910 35 052-08145-15 COIL A/W 1.5T/4.5MM HOR 0.8MM
L920 052-08150-15 COIL A/W 1.5T/5.0MM HOR 0.8MM
#L930 10 052-08155-15 COIL A/W 1.5T/5.5MM HOR 0.8MM
#L930 13 052-08155-15 COIL A/W 1.5T/5.5MM HOR 0.8MM
#L930 15 052-08155-15 COIL A/W 1.5T/5.5MM HOR 0.8MM
#L930 20 052-08150-15 COIL A/W 1.5T/5.0MM HOR 0.8MM
#L930 23 052-08150-15 COIL A/W 1.5T/5.0MM HOR 0.8MM
#L930 25 052-08150-15 COIL A/W 1.5T/5.0MM HOR 0.8MM
#L930 30 052-08150-15 COIL A/W 1.5T/5.0MM HOR 0.8MM
#L930 35 052-08150-15 COIL A/W 1.5T/5.0MM HOR 0.8MM
#L940 10 052-08150-15 COIL A/W 1.5T/5.0MM HOR 0.8MM
#L940 13 052-08150-15 COIL A/W 1.5T/5.0MM HOR 0.8MM
#L940 15 052-08150-15 COIL A/W 1.5T/5.0MM HOR 0.8MM
#L940 20 052-08145-15 COIL A/W 1.5T/4.5MM HOR 0.8MM
#L940 23 052-08145-15 COIL A/W 1.5T/4.5MM HOR 0.8MM
#L940 25 052-08145-15 COIL A/W 1.5T/4.5MM HOR 0.8MM
#L940 30 052-08145-15 COIL A/W 1.5T/4.5MM HOR 0.8MM
#L940 35 052-08145-15 COIL A/W 1.5T/4.5MM HOR 0.8MM
PL205 240-00020-67 HEADER 6W 2X3 PCB MTG STD
PL210 240-00020-67 HEADER 6W 2X3 PCB MTG STD
PL215 240-00020-44 HEADER 10W X2R PCB MTG 5*2
PL220 240-00020-67 HEADER 6W 2X3 PCB MTG STD
Q210 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q220 000-10008-17 S) XSTR SMD BC817-25 NPN SOT23
Q230 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q240 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q250 000-10008-17 S) XSTR SMD BC817-25 NPN SOT23
Q260 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q270 000-00011-91 S) XSTR BD139 NPN AF PWR TO126
Q310 000-10008-17 S) XSTR SMD BC817-25 NPN SOT23
Q315 000-00012-15 S) XSTR BD234 PNP AF PWR TO126
Q320 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q325 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q330 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF
Q335 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF
Q340 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF
Q345 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF
Q350 000-00005-55 S) XSTR MRF555 NPN RF L/PWR
Q355 000-00032-56 S) XSTR MRF630 NPN T039 UHF 3W
Q410 000-00022-75 S) XSTR SD1433 NPN S-MTG 10W
Q420 000-00022-80 S) XSTR SD1488 NPN 6LFL 40W
Q505 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q510 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF
Q520 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF
Q530 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF
Q540 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF
Q550 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q610 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF
Q620 000-00012-15 S) XSTR BD234 PNP AF PWR TO126
Q630 000-50011-30 S) XSTR AI BC557B PNP TO92 AF
Q660 000-10008-17 S) XSTR SMD BC817-25 NPN SOT23
Q670 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q710 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q720 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q730 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q740 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q750 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF
Q760 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q770 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q775 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q780 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q785 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q790 000-10003-12 S) XSTR SMD BFR31 N JFET SOT23
Q795 000-10057-10 S) XSTR SMD BR571 NPN SOT23
Q810 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q820 000-10008-17 S) XSTR SMD BC817-25 NPN SOT23
Q830 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q840 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q850 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q860 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
R160 036-12100-00 RES M/F 0805 10E 5%
R201 036-13560-00 RES M/F 0805 560E 5%
R202 036-14100-00 RES M/F 0805 1K 5%
R204 036-14220-00 RES M/F 0805 2K2 5%
R205 036-13220-00 RES M/F 0805 220E 5%
R206 036-14100-00 RES M/F 0805 1K 5%
R207 036-14390-00 RES M/F 0805 3K9 5%
R208 036-13560-00 RES M/F 0805 560E 5%
R209 036-15100-00 RES M/F 0805 10K 5%
R210 036-14220-00 RES M/F 0805 2K2 5%
R212 036-16100-00 RES M/F 0805 100K 5%
R213 036-15100-00 RES M/F 0805 10K 5%
R214 036-14820-00 RES M/F 0805 8K2 5%
R215 036-16100-00 RES M/F 0805 100K 5%
R216 036-16100-00 RES M/F 0805 100K 5%
R217 036-14100-00 RES M/F 0805 1K 5%
R218 036-16150-00 RES M/F 0805 150K 5%
R219 036-14220-00 RES M/F 0805 2K2 5%
R221 036-14150-00 RES M/F 0805 1K5 5%
R223 036-17100-00 RES M/F 0805 1M 5%
R224 036-14680-00 RES M/F 0805 6K8 5%
R225 036-17100-00 RES M/F 0805 1M 5%
R226 036-15100-00 RES M/F 0805 10K 5%
R227 036-14220-00 RES M/F 0805 2K2 5%
R229 036-16470-00 RES M/F 0805 470K 5%
R230 036-16100-00 RES M/F 0805 100K 5%
IPN 220-01397-01
M850-00
T856 PCB Information
C6.2.7
Copyright TEL 31/09/98
Ref Var IPN Description Ref Var IPN Description
R231 036-15100-00 RES M/F 0805 10K 5%
R232 036-16330-00 RES M/F 0805 330K 5%
R233 036-16100-00 RES M/F 0805 100K 5%
R235 036-14470-00 RES M/F 0805 4K7 5%
R237 036-15470-00 RES M/F 0805 47K 5%
R238 036-15470-00 RES M/F 0805 47K 5%
R239 036-14150-00 RES M/F 0805 1K5 5%
R241 036-14470-00 RES M/F 0805 4K7 5%
R242 036-14220-00 RES M/F 0805 2K2 5%
R244 036-15100-00 RES M/F 0805 10K 5%
R245 036-16100-00 RES M/F 0805 100K 5%
R247 036-15100-00 RES M/F 0805 10K 5%
R248 036-16100-00 RES M/F 0805 100K 5%
R249 036-16100-00 RES M/F 0805 100K 5%
R251 036-16100-00 RES M/F 0805 100K 5%
R253 036-16100-00 RES M/F 0805 100K 5%
R254 036-16100-00 RES M/F 0805 100K 5%
R255 036-15100-00 RES M/F 0805 10K 5%
R256 036-15470-00 RES M/F 0805 47K 5%
R257 036-16330-00 RES M/F 0805 330K 5%
R258 036-16150-00 RES M/F 0805 150K 5%
R259 036-15220-00 RES M/F 0805 22K 5%
R260 036-15470-00 RES M/F 0805 47K 5%
R262 036-15470-00 RES M/F 0805 47K 5%
R263 036-14470-00 RES M/F 0805 4K7 5%
&R264 10 036-15220-00 RES M/F 0805 22K 5%
&R264 13 036-15220-00 RES M/F 0805 22K 5%
&R264 15 036-15270-00 RES M/F 0805 27K 5%
&R264 20 036-15220-00 RES M/F 0805 22K 5%
&R264 23 036-15220-00 RES M/F 0805 22K 5%
&R264 25 036-15270-00 RES M/F 0805 27K 5%
&R264 30 036-15220-00 RES M/F 0805 22K 5%
&R264 35 036-15270-00 RES M/F 0805 27K 5%
&R265 10 036-15150-00 RES M/F 0805 15K 5%
&R265 13 036-15150-00 RES M/F 0805 15K 5%
&R265 15 036-15180-00 RES M/F 0805 18K 5%
&R265 20 036-15150-00 RES M/F 0805 15K 5%
&R265 23 036-15150-00 RES M/F 0805 15K 5%
&R265 25 036-15180-00 RES M/F 0805 18K 5%
&R265 30 036-15150-00 RES M/F 0805 15K 5%
&R265 35 036-15180-00 RES M/F 0805 18K 5%
&R266 10 036-15470-00 RES M/F 0805 47K 5%
&R266 13 036-15470-00 RES M/F 0805 47K 5%
&R266 15 036-15560-00 RES M/F 0805 56K 5%
&R266 20 036-15470-00 RES M/F 0805 47K 5%
&R266 23 036-15470-00 RES M/F 0805 47K 5%
&R266 25 036-15560-00 RES M/F 0805 56K 5%
&R266 30 036-15470-00 RES M/F 0805 47K 5%
&R266 35 036-15560-00 RES M/F 0805 56K 5%
R267 036-14220-00 RES M/F 0805 2K2 5%
R268 036-13100-00 RES M/F 0805 100E 5%
R269 036-15100-00 RES M/F 0805 10K 5%
R270 036-14120-00 RES M/F 0805 1K2 5%
R271 036-17100-00 RES M/F 0805 1M 5%
R272 036-13560-00 RES M/F 0805 560E 5%
R273 036-15120-00 RES M/F 0805 12K 5%
R274 036-15150-00 RES M/F 0805 15K 5%
R275 036-14270-00 RES M/F 0805 2K7 5%
R277 036-16100-00 RES M/F 0805 100K 5%
R278 036-16120-00 RES M/F 0805 120K 5%
R279 036-17100-00 RES M/F 0805 1M 5%
R280 036-15100-00 RES M/F 0805 10K 5%
R282 036-15560-00 RES M/F 0805 56K 5%
R283 036-15560-00 RES M/F 0805 56K 5%
R284 036-17100-00 RES M/F 0805 1M 5%
R285 036-10000-00 RES M/F 0805 ZERO OHM
R286 036-14220-00 RES M/F 0805 2K2 5%
R287 036-15100-00 RES M/F 0805 10K 5%
R288 036-15150-00 RES M/F 0805 15K 5%
R289 036-16100-00 RES M/F 0805 100K 5%
R290 036-13560-00 RES M/F 0805 560E 5%
R291 036-10000-00 RES M/F 0805 ZERO OHM
R292 036-14470-00 RES M/F 0805 4K7 5%
R293 036-15470-00 RES M/F 0805 47K 5%
R294 036-14470-00 RES M/F 0805 4K7 5%
R295 036-14270-00 RES M/F 0805 2K7 5%
R296 036-14100-00 RES M/F 0805 1K 5%
R297 036-14560-00 RES M/F 0805 5K6 5%
%R298 036-16100-00 RES M/F 0805 100K 5%
R299 036-14270-00 RES M/F 0805 2K7 5%
R300 036-14100-00 RES M/F 0805 1K 5%
R301 036-15100-00 RES M/F 0805 10K 5%
R302 036-14100-00 RES M/F 0805 1K 5%
R303 036-15100-00 RES M/F 0805 10K 5%
R304 036-15470-00 RES M/F 0805 47K 5%
R305 036-15330-00 RES M/F 0805 33K 5%
R306 036-15100-00 RES M/F 0805 10K 5%
R307 036-14470-00 RES M/F 0805 4K7 5%
R309 036-12100-00 RES M/F 0805 10E 5%
R311 036-14470-00 RES M/F 0805 4K7 5%
R315 036-15100-00 RES M/F 0805 10K 5%
%R317 036-15470-00 RES M/F 0805 47K 5%
R319 036-15470-00 RES M/F 0805 47K 5%
R321 036-16100-00 RES M/F 0805 100K 5%
R323 036-16220-00 RES M/F 0805 220K 5%
R324 036-13220-00 RES M/F 0805 220E 5%
R325 036-14220-00 RES M/F 0805 2K2 5%
R327 036-13100-00 RES M/F 0805 100E 5%
R329 036-14100-00 RES M/F 0805 1K 5%
R330 036-12220-00 RES M/F 0805 22E 5%
R333 030-03470-10 RES FILM 470E 5% 0.5W 7X2.5
R334 036-12680-00 RES M/F 0805 68E 5%
R335 036-12100-00 RES M/F 0805 10E 5%
R337 036-12100-00 RES M/F 0805 10E 5%
R338 036-13120-00 RES M/F 0805 120E 5%
R339 036-14100-00 RES M/F 0805 1K 5%
R341 036-16220-00 RES M/F 0805 220K 5%
R343 036-15100-00 RES M/F 0805 10K 5%
R345 036-14220-00 RES M/F 0805 2K2 5%
R347 036-16330-00 RES M/F 0805 330K 5%
R349 036-15100-00 RES M/F 0805 10K 5%
R350 036-12220-00 RES M/F 0805 22E 5%
R351 036-15150-00 RES M/F 0805 15K 5%
R352 036-12680-00 RES M/F 0805 68E 5%
R353 036-15150-00 RES M/F 0805 15K 5%
R354 036-14560-00 RES M/F 0805 5K6 5%
R355 036-16100-00 RES M/F 0805 100K 5%
R357 036-15100-00 RES M/F 0805 10K 5%
R359 036-15220-00 RES M/F 0805 22K 5%
R360 036-14150-00 RES M/F 0805 1K5 5%
R361 036-12680-00 RES M/F 0805 68E 5%
R362 036-16100-00 RES M/F 0805 100K 5%
R363 036-15470-00 RES M/F 0805 47K 5%
R365 036-15220-00 RES M/F 0805 22K 5%
R367 036-15100-00 RES M/F 0805 10K 5%
R368 036-15220-00 RES M/F 0805 22K 5%
R369 036-16100-00 RES M/F 0805 100K 5%
R370 036-13100-00 RES M/F 0805 100E 5%
R371 036-16100-00 RES M/F 0805 100K 5%
R372 036-14680-00 RES M/F 0805 6K8 5%
R373 036-13820-00 RES M/F 0805 820E 5%
R374 036-14120-00 RES M/F 0805 1K2 5%
R376 036-14100-00 RES M/F 0805 1K 5%
R381 036-14100-00 RES M/F 0805 1K 5%
R382 036-12470-00 RES M/F 0805 47E 5%
R383 036-14100-00 RES M/F 0805 1K 5%
R384 036-13560-00 RES M/F 0805 560E 5%
R385 036-12470-00 RES M/F 0805 47E 5%
R386 036-14100-00 RES M/F 0805 1K 5%
R387 036-13470-00 RES M/F 0805 470E 5%
R389 036-16150-00 RES M/F 0805 150K 5%
R390 036-16150-00 RES M/F 0805 150K 5%
R391 036-16150-00 RES M/F 0805 150K 5%
R392 036-16150-00 RES M/F 0805 150K 5%
R393 036-14100-00 RES M/F 0805 1K 5%
R394 036-14100-00 RES M/F 0805 1K 5%
#R395 10 030-53270-20 RES FILM AI 270E 5% 0.4W 4X1.6
#R395 13 030-53270-20 RES FILM AI 270E 5% 0.4W 4X1.6
#R395 15 030-53270-20 RES FILM AI 270E 5% 0.4W 4X1.6
#R395 20 030-53470-20 RES FILM AI 470E 5% 0.4W 4X1.6
#R395 23 030-53470-20 RES FILM AI 470E 5% 0.4W 4X1.6
#R395 25 030-53470-20 RES FILM AI 470E 5% 0.4W 4X1.6
#R395 30 030-53470-20 RES FILM AI 470E 5% 0.4W 4X1.6
#R395 35 030-53470-20 RES FILM AI 470E 5% 0.4W 4X1.6
#R396 10 030-52180-20 RES FILM AI 18E 5% 0.4W 4X1.6
#R396 13 030-52180-20 RES FILM AI 18E 5% 0.4W 4X1.6
#R396 15 030-52180-20 RES FILM AI 18E 5% 0.4W 4X1.6
#R396 20 030-52120-20 RES M/F 12E 5% 4X1.6 0.2"
#R396 23 030-52120-20 RES M/F 12E 5% 4X1.6 0.2"
#R396 25 030-52120-20 RES M/F 12E 5% 4X1.6 0.2"
#R396 30 030-52120-20 RES M/F 12E 5% 4X1.6 0.2"
#R396 35 030-52120-20 RES M/F 12E 5% 4X1.6 0.2"
#R397 10 030-53270-20 RES FILM AI 270E 5% 0.4W 4X1.6
#R397 13 030-53270-20 RES FILM AI 270E 5% 0.4W 4X1.6
#R397 15 030-53270-20 RES FILM AI 270E 5% 0.4W 4X1.6
#R397 20 030-53470-20 RES FILM AI 470E 5% 0.4W 4X1.6
#R397 23 030-53470-20 RES FILM AI 470E 5% 0.4W 4X1.6
#R397 25 030-53470-20 RES FILM AI 470E 5% 0.4W 4X1.6
#R397 30 030-53470-20 RES FILM AI 470E 5% 0.4W 4X1.6
#R397 35 030-53470-20 RES FILM AI 470E 5% 0.4W 4X1.6
R399 036-12470-00 RES M/F 0805 47E 5%
#R410 10 030-52100-20 RES FILM AI 10E 5% 0.4W 4X1.6
#R410 13 030-52100-20 RES FILM AI 10E 5% 0.4W 4X1.6
#R410 15 030-52100-20 RES FILM AI 10E 5% 0.4W 4X1.6
#R410 20 030-52100-20 RES FILM AI 10E 5% 0.4W 4X1.6
#R410 23 030-52100-20 RES FILM AI 10E 5% 0.4W 4X1.6
#R410 25 030-52100-20 RES FILM AI 10E 5% 0.4W 4X1.6
#R410 30 030-52100-20 RES FILM AI 10E 5% 0.4W 4X1.6
#R410 35 030-52100-20 RES FILM AI 10E 5% 0.4W 4X1.6
#R420 10 030-53470-20 RES FILM AI 470E 5% 0.4W 4X1.6
#R420 13 030-53470-20 RES FILM AI 470E 5% 0.4W 4X1.6
#R420 15 030-53470-20 RES FILM AI 470E 5% 0.4W 4X1.6
#R420 20 030-53820-20 RES FILM AI 820E 5% 0.4W 4X1.6
#R420 23 030-53820-20 RES FILM AI 820E 5% 0.4W 4X1.6
#R420 25 030-53820-20 RES FILM AI 820E 5% 0.4W 4X1.6
#R420 30 030-53820-20 RES FILM AI 820E 5% 0.4W 4X1.6
#R420 35 030-53820-20 RES FILM AI 820E 5% 0.4W 4X1.6
#R430 10 030-52100-20 RES FILM AI 10E 5% 0.4W 4X1.6
#R430 13 030-52100-20 RES FILM AI 10E 5% 0.4W 4X1.6
#R430 15 030-52100-20 RES FILM AI 10E 5% 0.4W 4X1.6
#R430 20 030-52100-20 RES FILM AI 10E 5% 0.4W 4X1.6
#R430 23 030-52100-20 RES FILM AI 10E 5% 0.4W 4X1.6
#R430 25 030-52100-20 RES FILM AI 10E 5% 0.4W 4X1.6
#R430 30 030-52100-20 RES FILM AI 10E 5% 0.4W 4X1.6
#R430 35 030-52100-20 RES FILM AI 10E 5% 0.4W 4X1.6
#R440 10 030-53470-20 RES FILM AI 470E 5% 0.4W 4X1.6
IPN 220-01397-01
C6.2.8
T856 PCB Information
M850-00
31/09/98 Copyright TEL
Ref Var IPN Description Ref Var IPN Description
#R440 13 030-53470-20 RES FILM AI 470E 5% 0.4W 4X1.6
#R440 15 030-53470-20 RES FILM AI 470E 5% 0.4W 4X1.6
#R440 20 030-53820-20 RES FILM AI 820E 5% 0.4W 4X1.6
#R440 23 030-53820-20 RES FILM AI 820E 5% 0.4W 4X1.6
#R440 25 030-53820-20 RES FILM AI 820E 5% 0.4W 4X1.6
#R440 30 030-53820-20 RES FILM AI 820E 5% 0.4W 4X1.6
#R440 35 030-53820-20 RES FILM AI 820E 5% 0.4W 4X1.6
R450 032-32220-00 RES M/F PWR 22E 5% 1W 12X4.5MM
R460 036-14470-00 RES M/F 0805 4K7 5%
R470 036-13100-00 RES M/F 0805 100E 5%
R480 036-13100-00 RES M/F 0805 100E 5%
R481 045-04470-01 RES NTC 4K7 5% 5MM DISC
R490 036-14470-00 RES M/F 0805 4K7 5%
R500 036-12680-00 RES M/F 0805 68E 5%
R501 036-15100-00 RES M/F 0805 10K 5%
R502 036-15100-00 RES M/F 0805 10K 5%
R503 036-14560-00 RES M/F 0805 5K6 5%
R504 036-13330-00 RES M/F 0805 330E 5%
R505 036-15150-00 RES M/F 0805 15K 5%
R510 036-14150-00 RES M/F 0805 1K5 5%
R514 036-12330-00 RES M/F 0805 33E 5%
R515 036-12560-00 RES M/F 0805 56E 5%
#R517 10 036-13150-00 RES M/F 0805 150E 5%
#R517 13 036-13150-00 RES M/F 0805 150E 5%
#R517 15 036-13150-00 RES M/F 0805 150E 5%
#R517 20 036-13330-00 RES M/F 0805 330E 5%
#R517 23 036-13330-00 RES M/F 0805 330E 5%
#R517 25 036-13330-00 RES M/F 0805 330E 5%
#R517 30 036-13330-00 RES M/F 0805 330E 5%
#R517 35 036-13330-00 RES M/F 0805 330E 5%
#R518 10 036-12330-00 RES M/F 0805 33E 5%
#R518 13 036-12330-00 RES M/F 0805 33E 5%
#R518 15 036-12330-00 RES M/F 0805 33E 5%
#R518 20 036-12180-00 RES M/F 0805 18E 5%
#R518 23 036-12180-00 RES M/F 0805 18E 5%
#R518 25 036-12180-00 RES M/F 0805 18E 5%
#R518 30 036-12180-00 RES M/F 0805 18E 5%
#R518 35 036-12180-00 RES M/F 0805 18E 5%
#R519 10 036-13150-00 RES M/F 0805 150E 5%
#R519 13 036-13150-00 RES M/F 0805 150E 5%
#R519 15 036-13150-00 RES M/F 0805 150E 5%
#R519 20 036-13330-00 RES M/F 0805 330E 5%
#R519 23 036-13330-00 RES M/F 0805 330E 5%
#R519 25 036-13330-00 RES M/F 0805 330E 5%
#R519 30 036-13330-00 RES M/F 0805 330E 5%
#R519 35 036-13330-00 RES M/F 0805 330E 5%
R520 036-13150-00 RES M/F 0805 150E 5%
R523 036-16120-00 RES M/F 0805 120K 5%
R525 036-15470-00 RES M/F 0805 47K 5%
R530 036-15220-00 RES M/F 0805 22K 5%
R535 036-15100-00 RES M/F 0805 10K 5%
R540 036-14220-00 RES M/F 0805 2K2 5%
R545 036-14470-00 RES M/F 0805 4K7 5%
%R550 036-14120-00 RES M/F 0805 1K2 5%
R555 036-14470-00 RES M/F 0805 4K7 5%
R560 036-13470-00 RES M/F 0805 470E 5%
R609 036-14100-00 RES M/F 0805 1K 5%
R613 036-13560-00 RES M/F 0805 560E 5%
R615 036-13100-00 RES M/F 0805 100E 5%
R617 036-10000-00 RES M/F 0805 ZERO OHM
R619 036-01100-10 RES 1 OHM 1 WATT 2512 CHIP
R621 036-01100-10 RES 1 OHM 1 WATT 2512 CHIP
R625 036-14100-00 RES M/F 0805 1K 5%
R629 036-03270-10 RES 270 OHM 1 WATT 2512 CHIP
R633 036-14680-00 RES M/F 0805 6K8 5%
R637 036-12220-00 RES M/F 0805 22E 5%
R641 036-14150-00 RES M/F 0805 1K5 5%
R645 036-13470-00 RES M/F 0805 470E 5%
R649 036-14470-00 RES M/F 0805 4K7 5%
R653 036-15100-00 RES M/F 0805 10K 5%
R657 036-15100-00 RES M/F 0805 10K 5%
R661 036-15100-00 RES M/F 0805 10K 5%
R665 036-16100-00 RES M/F 0805 100K 5%
R669 036-15470-00 RES M/F 0805 47K 5%
R673 036-16100-00 RES M/F 0805 100K 5%
R677 036-15470-00 RES M/F 0805 47K 5%
R681 036-13100-00 RES M/F 0805 100E 5%
R685 036-15150-00 RES M/F 0805 15K 5%
R689 036-12100-00 RES M/F 0805 10E 5%
R693 036-16100-00 RES M/F 0805 100K 5%
R696 036-15560-00 RES M/F 0805 56K 5%
R701 036-12220-00 RES M/F 0805 22E 5%
R702 036-17100-00 RES M/F 0805 1M 5%
R703 036-17100-00 RES M/F 0805 1M 5%
R706 036-15150-00 RES M/F 0805 15K 5%
R708 036-16100-00 RES M/F 0805 100K 5%
R710 036-13100-00 RES M/F 0805 100E 5%
R711 036-13100-00 RES M/F 0805 100E 5%
R712 036-12100-00 RES M/F 0805 10E 5%
R713 036-12220-00 RES M/F 0805 22E 5%
%R715 036-14100-00 RES M/F 0805 1K 5%
R717 036-14270-00 RES M/F 0805 2K7 5%
R718 036-16150-00 RES M/F 0805 150K 5%
R719 036-16150-00 RES M/F 0805 150K 5%
R720 036-15390-00 RES M/F 0805 39K 5%
R721 036-15100-00 RES M/F 0805 10K 5%
R722 036-15100-00 RES M/F 0805 10K 5%
R723 036-14270-00 RES M/F 0805 2K7 5%
R725 036-15390-00 RES M/F 0805 39K 5%
%R726 036-13100-00 RES M/F 0805 100E 5%
R727 036-15100-00 RES M/F 0805 10K 5%
R728 036-15100-00 RES M/F 0805 10K 5%
R742 036-13150-00 RES M/F 0805 150E 5%
R743 036-13150-00 RES M/F 0805 150E 5%
R744 036-12220-00 RES M/F 0805 22E 5%
R746 036-12220-00 RES M/F 0805 22E 5%
R747 036-12220-00 RES M/F 0805 22E 5%
R748 036-15470-00 RES M/F 0805 47K 5%
R749 036-15470-00 RES M/F 0805 47K 5%
R750 036-12220-00 RES M/F 0805 22E 5%
R752 036-12220-00 RES M/F 0805 22E 5%
R753 036-17100-00 RES M/F 0805 1M 5%
R754 036-14100-00 RES M/F 0805 1K 5%
R756 036-16100-00 RES M/F 0805 100K 5%
R757 036-16100-00 RES M/F 0805 100K 5%
R758 036-14120-00 RES M/F 0805 1K2 5%
R759 036-13330-00 RES M/F 0805 330E 5%
R760 036-13180-00 RES M/F 0805 180E 5%
R762 036-13100-00 RES M/F 0805 100E 5%
R763 036-13100-00 RES M/F 0805 100E 5%
R765 036-13680-00 RES M/F 0805 680E 5%
R766 036-14100-00 RES M/F 0805 1K 5%
R767 036-13680-00 RES M/F 0805 680E 5%
R769 036-13180-00 RES M/F 0805 180E 5%
R771 036-14820-00 RES M/F 0805 8K2 5%
R772 036-15220-00 RES M/F 0805 22K 5%
R774 036-14820-00 RES M/F 0805 8K2 5%
R775 036-15180-00 RES M/F 0805 18K 5%
R777 036-14220-00 RES M/F 0805 2K2 5%
R780 036-12680-00 RES M/F 0805 68E 5%
R782 036-12180-00 RES M/F 0805 18E 5%
R784 036-13120-00 RES M/F 0805 120E 5%
R785 036-14330-00 RES M/F 0805 3K3 5%
R786 036-12100-00 RES M/F 0805 10E 5%
R787 036-12100-00 RES M/F 0805 10E 5%
R790 036-13390-00 RES M/F 0805 390E 5%
R791 036-14100-00 RES M/F 0805 1K 5%
R801 036-16150-00 RES M/F 0805 150K 5%
R802 036-15470-00 RES M/F 0805 47K 5%
R808 036-12100-00 RES M/F 0805 10E 5%
R809 036-14470-00 RES M/F 0805 4K7 5%
R810 036-14470-00 RES M/F 0805 4K7 5%
R811 036-14470-00 RES M/F 0805 4K7 5%
R812 036-14470-00 RES M/F 0805 4K7 5%
R813 036-14470-00 RES M/F 0805 4K7 5%
R815 036-15470-00 RES M/F 0805 47K 5%
R816 036-16150-00 RES M/F 0805 150K 5%
R818 036-14470-00 RES M/F 0805 4K7 5%
R819 036-14470-00 RES M/F 0805 4K7 5%
R821 036-15470-00 RES M/F 0805 47K 5%
R822 036-15470-00 RES M/F 0805 47K 5%
R824 036-14220-00 RES M/F 0805 2K2 5%
R825 036-14220-00 RES M/F 0805 2K2 5%
R826 036-14220-00 RES M/F 0805 2K2 5%
R827 036-14220-00 RES M/F 0805 2K2 5%
R828 036-14220-00 RES M/F 0805 2K2 5%
R829 036-14220-00 RES M/F 0805 2K2 5%
R830 036-14220-00 RES M/F 0805 2K2 5%
R831 036-14220-00 RES M/F 0805 2K2 5%
R832 036-14220-00 RES M/F 0805 2K2 5%
R833 036-14220-00 RES M/F 0805 2K2 5%
R835 036-14220-00 RES M/F 0805 2K2 5%
R836 036-14220-00 RES M/F 0805 2K2 5%
R837 036-14220-00 RES M/F 0805 2K2 5%
R840 036-14220-00 RES M/F 0805 2K2 5%
R841 036-14220-00 RES M/F 0805 2K2 5%
R842 036-14220-00 RES M/F 0805 2K2 5%
R843 036-14220-00 RES M/F 0805 2K2 5%
R845 036-13470-00 RES M/F 0805 470E 5%
R846 036-13470-00 RES M/F 0805 470E 5%
R847 036-13470-00 RES M/F 0805 470E 5%
R848 036-14470-00 RES M/F 0805 4K7 5%
R849 036-13470-00 RES M/F 0805 470E 5%
R850 036-13470-00 RES M/F 0805 470E 5%
R853 036-14470-00 RES M/F 0805 4K7 5%
R854 036-14470-00 RES M/F 0805 4K7 5%
R855 036-14470-00 RES M/F 0805 4K7 5%
R859 036-16150-00 RES M/F 0805 150K 5%
R861 036-16150-00 RES M/F 0805 150K 5%
R863 036-16150-00 RES M/F 0805 150K 5%
R865 036-16100-00 RES M/F 0805 100K 5%
R867 036-16100-00 RES M/F 0805 100K 5%
R871 036-15470-00 RES M/F 0805 47K 5%
R872 036-14470-00 RES M/F 0805 4K7 5%
R873 036-15330-00 RES M/F 0805 33K 5%
R874 036-14470-00 RES M/F 0805 4K7 5%
R875 036-15470-00 RES M/F 0805 47K 5%
R876 036-14470-00 RES M/F 0805 4K7 5%
R877 036-14470-00 RES M/F 0805 4K7 5%
R879 036-15100-00 RES M/F 0805 10K 5%
RV210 040-05100-23 POT 10K LOG PCB 15MM SLOT SFT
RV220 042-05500-05 RES PRESET SMD 50K CER 4MM SQ
RV310 042-05100-05 RES PRESET SMD 10K CER 4MM SQ
RV320 042-04220-05 RES PRESET SMD 2K CER 4MM SQ
RV330 042-06500-05 RES PRESET SMD 500K CER 4MM SQ
IPN 220-01397-01
M850-00
T856 PCB Information
C6.2.9
Copyright TEL 31/09/98
Ref Var IPN Description Ref Var IPN Description
RV805 042-05200-05 RES PRESET SMD 20K CER 4MM SQ
SK205 240-02020-05 SKT STEREO PHONE JACK PCB MTG
SK310 240-02100-44 SKT COAX MINI JACK PCB MT ANG.
SK410 240-02100-44 SKT COAX MINI JACK PCB MT ANG.
SK501 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK502 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK503 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK504 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK505 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK513 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK522 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK531 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK532 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK533 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK534 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK535 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK805 240-10000-07 CONN SMD SKT 16W 2R M-MATCH
SK810 240-04020-42 SKT 44 PIN SMD PLCC
SW101 232-00010-26 SWITCH PUSH SPDT R-ANG PCB MTG
T210 053-00010-17 XFMR T4030 LINE MATCH POTCORE
T610 050-00016-50 COIL TAIT NO 650 455KHZ
IPN 220-01397-01
C6.2.10
T856 PCB Information
M850-00
31/09/98 Copyright TEL
IPN Legend Description IPN Legend Description
T856 Mechanical & Miscellaneous Parts (220-01397-01)
070-01001-00 14/37 D-RANGE 15 WAY COMPL T800
070-02001-00 LED RED COMPL T800 RX/TX/EX
070-02002-00 LED GREEN COMPL T800 RX/TX/EX
200-00010-05 WIRE T/C 0.5
For ferrite beads.
206-00010-11 COAX 50 OHM RG316-U PTFE
Connects SK310 to SK410.
220-01145-02 1 PCB T855/856/857 VCO
220-01397-01 2 PCB T856 SERIES II
232-00020-26 3 BUTTON 232-00010-26 SWITCH
240-00100-43 PLG COAX MINI PIN CRIMP 1.5D
For coax connecting SK310 to SK410.
240-02100-06 4 SKT COAX N TYPE PNL MTG OP-TER
240-04020-62 SKT 2 W RECEP SHORTING LINK
PL205/210/215/220.
303-11169-03 5 CHASSIS PAINTED T800 SER II
303-23118-00 6 COVER A3M2247 D RANGE
303-50074-00 7 CLIP A3M2246 SPRING CLAMP
303-50078-00 8 CLIP A4M2630 SPR. CABLE CLAMP
308-01007-01 9 HANDLE BASE STATION SERIES II
308-13090-00 10 HSINK A4M2361 BRKT COPPER T856
312-01052-01 11 LID TOP T800 SER II PTND
312-01053-01 12 LID BOTTOM T800 SER II PNTD
316-06621-00 13 PNL FRT TX T800 SERIES II
319-01173-00 15 SHIELD A3M2880 D-RANGE T856
319-01174-00 16 SHIELD A4M2881 N-CONN T856
345-00040-08 17 SCRW M3X12MM P/POZ ST BZ
345-00040-10 18 SCRW M3X6MM P/POZ ST BZ
349-00020-09 19 SCRW T/T 4-40X3/8 IN P/POZ BLK
349-00020-31 20 SCRW T/T M3X10MM P/POZ BZ
349-00020-34 21 SCRW M3X12 P/POZ T/T BZ
349-00020-36 22 LIM)SCREW TT M3X8m PANTORX BLK
349-00020-43 23 SCRW T/T M4X12MM P/POZ BZ
349-00020-45 24 SCRW T/T M4X20MM P/POZ BZ
350-00016-42 25 SPACER 5MM HI 8MM ST 2.5MM HO
352-00010-08 26 NUT M3 COLD FORM HEX ST BZ
352-00010-29 27 NUT M4 NYLOC HEX
352-00010-35 28 NUT 8-32 UNC HEX XSTR MTG
353-00010-10 29 WSHR M3 FLAT 7MMX0.6MM ST BZ
353-00010-12 30 WSHR M3 SPRING BZ OR Z/C
353-00010-13 31 WSHR M3 S/PROOF INT BZ
353-00010-24 32 WSHR M4 FLAT ST BZ A4M1957
356-00010-01 33 TAG SOLDER 3MM SHORT M6132/3.2
356-00010-05 34 TAG SOLDER 4MM LONG M6144/4.2
362-00010-23 35 GASKET SIL TO-220 CLIP MTG.
362-00010-33 36 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 SERIES II
410-01082-01 CRTN 10 T800 KIWI 423X410X360
IPN 220-01397-01
M850-00
T856 PCB Information
C6.2.13
Copyright TEL 31/09/98
Device PCB Circuit Device PCB CircuitDevice PCB Circuit Device PCB Circuit
T856 Grid Reference Index (IPN 220-01397-01)
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 charac-
ters 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.
C201 1:C1 2-B8
C202 1:C1 2-C8
C204 1:A2 2-E8
C205 1:A2 2-E8
C207 1:C7 2-B6
C209 1:C6 2-D6
C210 1:C7 2-K0
C211 1:B7 2-F8
C213 1:B6 2-G8
C215 1:B6 2-G8
C217 1:C6 2-H8
C219 1:C6 2-H7
C221 1:D5 2-G6
C223 1:C5 2-J6
C225 1:C3 2-K7
C227 1:B4 2-K7
C229 1:B3 2-L7
C230 1:B4 2-J0
C232 1:A4 2-M7
C233 1:A5 2-N7
C235 1:B5 2-K5
C237 1:C4 2-K5
C239 1:C4 2-L4
C241 1:B4 2-M6
C242 1:B4 2-L6
C243 1:B4 2-P6
C245 1:C5 2-A4
C247 1:D4 2-B4
C249 1:D4 2-C4
C251 1:C3 2-E4
C253 1:D3 2-E3
C255 1:D3 2-D2
C257 1:D3 2-F2
C259 1:C6 2-J2
C260 1:D8 2-H0
C261 1:C6 2-K2
C263 1:D6 2-L3
C265 1:D6 2-N4
C267 1:C8 2-P3
&C269 1:C8 2-P3
C271 1:C8 2-Q3
C273 1:C8 2-Q4
C275 1:D3 2-E1
C277 1:C4 2-G1
C279 1:B4 2-G1
C281 1:B5 2-J1
C283 1:B5 2-K0
C285 1:D7 2-L0
C287 1:C6 2-M1
C289 1:C8 2-N1
C291 1:D7 2-P1
C293 1:D7 2-Q1
%C294 1:D7 2-Q0
%C295 1:D6 2-Q0
C300 1:F8 3-B8
C301 1:F9 3-B7
C302 1:E8 3-A6
C303 1:E8 3-A6
C304 1:E8 3-C6
C305 1:F7 3-E5
C306 1:F7 3-F7
C307 1:F7 3-F7
C308 1:F8 3-G7
C309 1:F8 3-J7
C310 1:F8 3-K7
C311 1:F8 3-G6
C312 1:F8 3-G5
C313 1:E9 3-C8
C314 1:F8 3-G5
C315 1:E8 3-C7
C316 1:F8 3-H6
C317 1:F8 3-H5
C318 1:F8 3-J5
C320 1:F5 3-P5
C324 1:F6 3-Q5
C326 1:F6 3-Q4
C327 1:F7 3-C3
C328 1:F6 3-R4
C329 1:F6 3-R4
C330A 1:E8 3-G8
C330B 1:E8 3-G8
C331 1:F3 3-B2
C332 1:F8 3-B3
C333 1:F3 3-B0
C334 1:F7 3-C3
C335 1:F7 3-F5
C336 1:F7 3-F5
C337 1:E7 3-F3
C338 1:E7 3-F2
C339 1:E7 3-F3
C340 1:E7 3-H4
C341 1:F3 3-G3
C342 1:F3 3-H3
C343 1:F3 3-J3
C344 1:F3 3-J4
C345 1:F3 3-K4
C346 1:F3 3-K4
C347 1:F3 3-L4
C348 1:F3 3-M4
C349 1:F3 3-M4
C350A 1:F7 3-J8
C350B 1:F7 3-J8
C351 1:F4 3-H1
C352 1:F4 3-J0
C353 1:F4 3-J0
C354 1:F4 3-K0
C355 1:F4 3-K1
C356 1:F3 3-K2
C358 1:E4 3-K1
C360 1:E4 3-L1
C362 1:E5 3-N2
C364 1:E4 3-M2
C366 1:F4 3-N2
C368 1:E5 3-N1
C370A 1:F8 3-K7
C370B 1:F8 3-L7
C370C 1:F8 3-L7
C371 1:F8 3-N7
C372 1:F9 3-P7
C373 1:F9 3-P7
C380 1:E6 3-P1
#C382 1:E6 3-Q1
C383 1:F3 3-B2
#C384 1:E6 3-R2
C385 1:F3 3-D0
C405 2:H8 4-D4
#C410 2:J8 4-E3
C415 2:J7 4-F3
C419 1:G8 4-C6
C420 1:G8 4-D6
C421 1:G8 4-D6
C430 1:J7 4-H6
C435 1:M7 4-J6
C438 2:K8 4-G4
#C440 2:K8 4-H4
#C445 2:K7 4-J4
C450 1:L7 4-K5
C455 1:M7 4-L5
#C460 2:L7 4-K4
#C465 2:L8 4-L4
C470 2:L8 4-M4
#C480 2:M8 4-N4
C481 1:J8 4-P7
C485 1:M9 4-M5
C490 1:M9 4-N5
C493 2:M8 4-N4
C496 1:N7 4-P3
C499 1:N7 4-Q3
C501 1:K4 5-B6
C502 1:K4 5-C6
C503 1:K6 5-L9
C504 1:K6 5-M6
C505 1:K6 5-N6
C507 1:K6 5-B5
C508 1:K6 5-C0
C509 1:K6 5-D0
C510 1:J5 5-D1
C512 1:J5 5-E1
C513 1:J5 5-H1
C514 1:J5 5-J1
C516 1:H5 5-H4
C517 1:H5 5-H4
C519 1:H5 5-J5
C525 1:K4 5-K5
C530 1:K5 5-L4
C535 1:K5 5-L2
C537 1:K5 5-N2
C605 1:L6 6-D8
C610A 1:M5 6-F8
C610B 1:M5 6-G8
C611A 1:L5 6-H8
C611B 1:M5 6-J8
C620 1:N5 6-K9
C621 1:N5 6-L9
C623 1:N6 6-N7
C625 1:M6 6-Q8
C626 1:M6 6-R8
C628 1:M6 6-R8
C630 1:M5 6-K4
C631A 1:M5 6-M5
C634 1:N5 6-M4
C636 1:M5 6-M4
C638 1:M6 6-P5
C640 1:M5 6-R5
C655 1:M4 6-C1
C660 1:L5 6-K1
C665 1:L5 6-K1
C670 1:L6 6-L1
C673 1:L5 6-P2
C677 1:L6 6-P1
C681 1:M5 6-R3
C684 1:M6 6-R3
C687 1:L6 6-Q1
C690 1:L6 6-R1
C693 1:L6 6-R1
C700 1:K4 7-A8
C701 1:J3 7-B8
C703 1:J3 7-B7
C705 1:J3 7-B7
C706 1:J2 7-B5
%C707 1:K4 7-C8
C708 1:J2 7-C9
C709 1:K4 7-D9
C710 1:J3 7-E8
C712 1:H2 7-E7
%C713 1:H2 7-E6
C720 1:J3 7-F8
C722 1:J4 7-G8
C724 1:J4 7-H6
C725 1:J4 7-J6
C726 1:K4 7-J6
C727 1:J3 7-J8
C729 1:J3 7-M8
%C733 1:J3 7-M5
C735 1:J2 7-A1
C736 1:J2 7-B1
C740A 1:H2 7-B4
C740B 1:H2 7-B3
C741A 1:H2 7-C4
C741B 1:G2 7-C3
C742A 1:H2 7-D4
C742B 1:H3 7-D3
C743 1:H2 7-B1
C745 1:G3 7-D1
C750A 1:H4 7-Q7
C750B 1:H4 7-R7
C757 1:G4 7-F5
C759 1:G4 7-G4
C761 1:G3 7-J4
C762 1:G3 7-J4
C763 1:H3 7-K4
C764 1:H3 7-H2
C765 1:G3 7-J2
C766 1:G3 7-J2
C767 1:H3 7-K3
C768 1:H4 7-L4
IPN 220-01397-01
C6.2.14
T856 PCB Information
M850-00
31/09/98 Copyright TEL
Device PCB Circuit Device PCB CircuitDevice PCB Circuit Device PCB Circuit
C769 1:H4 7-M4
C770 1:H4 7-N4
C772 1:G4 7-M2
C774 1:H4 7-P2
C776 1:H4 7-N1
C782 1:G2 7-N1
C784 1:G2 7-R1
C786 1:G2 7-R1
C788 1:G3 7-P0
C790 1:G3 7-R0
C792 1:G4 7-R0
C810 1:L3 8-K8
C812 1:L2 8-F5
C813 1:K2 8-H5
C822 1:M2 8-B2
C823 1:M3 8-C2
C824 1:M2 8-C1
C826 1:N3 8-C0
C827 1:N3 8-D0
C828 1:N3 8-E0
C830 1:N3 8-R1
C838 1:N4 8-F0
C841 1:N2 8-K2
C844 1:M2 8-L2
#C900 2:N8 9-C6
C910 2:P8 9-D6
#C920 2:P8 9-E6
#C930 2:P8 9-E7
C940 2:P7 9-F6
#C950 2:P7 9-G6
#C960 2:P7 9-G7
C970 2:P7 9-H6
#C980 2:P6 9-J6
#C990 2:P6 9-K6
#CV475 1:M8 4-M4
D111 1:P4 1-R1
%D205 1:B2 2-D9
%D210 1:B2 2-E9
D220 1:B4 2-P7
D220 1:B4 2-P6
D230 1:B7 2-R5
D240 1:D4 2-C4
D240 1:D4 2-B2
D250 1:D3 2-E2
D250 1:D3 2-D3
D260 1:C2 2-C2
D260 1:C2 2-C2
D270 1:D2 2-C1
D270 1:D2 2-C1
D340 1:F4 3-J1
D360 1:F4 3-J1
D380 1:F4 3-J1
D420 1:M8 4-N5
D440 1:N7 4-P4
D510 1:K6 5-K8
D510 1:K6 5-K9
D610 1:N6 6-L6
D610 1:N6 6-K6
D620 1:N4 6-B1
D620 1:N4 6-B2
D630 1:M5 6-G2
D630 1:M5 6-G3
D635 1:M4 6-G3
D640 1:L5 6-M1
D640 1:L5 6-M2
D710 1:J3 7-L8
D710 1:J3 7-L8
D720 1:H3 7-P8
D720 1:H3 7-P8
D730 1:H3 7-H1
D740 1:H3 7-J2
D810 1:M2 8-B7
IC210 1:C7 2-J0
IC210 1:C7 2-Q0
IC210 1:C7 2-K2
IC210 1:C7 2-L1
IC210 1:C7 2-C6
IC220 1:D6 2-P0
IC220 1:D6 2-M3
IC220 1:D6 2-D5
IC230 1:B4 2-H0
IC230 1:B4 2-G1
IC230 1:B4 2-N6
IC230 1:B4 2-J0
IC230 1:B4 2-L5
IC240 1:D4 2-F3
IC250 1:D3 2-E1
IC260 1:D8 2-N0
IC260 1:D8 2-H0
IC260 1:D8 2-Q2
IC260 1:D8 2-Q3
IC260 1:D8 2-N3
IC330 1:E8 3-D8
IC330 1:E8 3-H8
IC330 1:E8 3-D7
IC350 1:F7 3-K8
IC350 1:F7 3-C4
IC350 1:F7 3-F6
IC370 1:F9 3-M6
IC610 1:M5 6-G8
IC630 1:N5 6-K5
IC640 1:M5 6-F1
IC640 1:M5 6-Q5
IC640 1:M5 6-N5
IC650 1:L5 6-F4
=IC700 1:K3 7-A8
IC710 1:J2 7-E8
IC710 1:J2 7-C6
IC710 1:J2 7-G0
IC710 1:J2 7-D6
IC710 1:J2 7-D7
IC710 1:J2 7-D6
IC710 1:J2 7-C6
IC720 1:J3 7-P6
IC720 1:J3 7-J0
IC720 1:J3 7-N7
IC720 1:J3 7-M7
IC720 1:J3 7-K7
IC720 1:J3 7-F8
IC720 1:J3 7-K0
IC730 1:J4 7-H8
IC730 1:J4 7-G7
IC740 1:H2 7-D1
IC750 1:H4 7-M3
IC750 1:H4 7-H5
IC750 1:H4 7-Q7
IC820 1:L4 8-N2
IC830 1:N3 8-J0
IC830 1:N3 8-Q1
IC830 1:N3 8-J0
IC830 1:N3 8-J1
IC830 1:N3 8-C0
L302 1:F9 3-B5
L303 1:F8 3-L8
L304 1:F5 3-P5
L305 1:F5 3-P4
L310 1:F6 3-Q5
L315 1:F6 3-Q4
L320 1:F4 3-K2
L325 1:E4 3-K1
L330 1:E4 3-L1
L333 1:F3 3-H4
L334 1:F3 3-C0
L335 1:E4 3-M2
L340 1:E5 3-N2
L345 1:E5 3-P1
L350 1:E5 3-Q2
L355 1:E6 3-Q2
L405 1:H8 4-C3
L410 1:H7 4-D4
L415 1:G7 4-D3
L418 2:H8 4-F4
L420 1:G8 4-D6
L425 1:G7 4-C6
L430 1:J7 4-G6
L435 1:J7 4-F5
L440 2:K8 4-G4
L445 1:K7 4-G4
L450 1:J7 4-G3
L455 2:K8 4-J4
L460 1:M7 4-J6
L465 1:L7 4-J5
L470 2:L8 4-K4
L475 2:L8 4-L4
L480 1:M9 4-N6
L481 1:J9 4-Q7
L485 1:N7 4-Q4
L520 1:K6 5-C1
L610 1:N5 6-L9
L620 1:N6 6-L9
L750 1:G3 7-Q0
#L910 1:P8 9-C8
L920 1:P8 9-E8
#L930 1:P7 9-G8
#L940 1:P6 9-J8
P100 1:Q6 1-R8
P150 1:P2 1-Q4
P160 1:P2 1-Q4
P170 1:P2 1-Q3
P204 1:D1 2-A8
P208 1:D1 2-A8
P215 1:D4 2-A2
P217 1:D4 2-A2
P219 1:D2 2-A1
P225 1:D2 2-A0
P230 1:C5 2-B0
P231 1:D8 2-B0
P233 1:C1 2-R9
P235 1:C1 2-R9
P237 1:B7 2-R8
P239 1:C7 2-R8
P240 1:C7 2-R8
P243 1:B7 2-R7
P244 1:B7 2-R7
P245 1:B8 2-R6
P247 1:B8 2-R6
P248 1:B7 2-R6
P249 1:C7 2-R5
P251 1:C7 2-R5
P255 1:D4 2-R4
P257 1:C2 2-R4
P259 1:B8 2-R3
P261 1:B8 2-R3
P263 1:B2 2-R2
P267 1:C8 2-N2
P269 1:D8 2-P2
P271 1:C9 2-N1
P273 1:D9 2-P0
P275 1:D7 2-Q0
P805 1:M2 8-A7
P810 1:L3 8-A5
P820 1:L4 8-M8
P825 1:L4 8-M8
P830 1:L4 8-M8
P835 1:L4 8-M7
P840 1:L4 8-M7
PL100 1:P3 1-F0
PL205 1:C5 2-J8
PL210 1:C3 2-H4
PL215 1:C4 2-K3
PL220 1:C4 2-H2
Q210 1:C6 2-J8
Q220 1:B3 2-L7
Q230 1:A4 2-M8
Q240 1:B7 2-Q7
Q250 1:B7 2-R5
Q260 1:C4 2-F3
Q270 1:D2 2-D1
Q310 1:F8 3-H5
Q315 1:F8 3-J6
Q320 1:E7 3-E4
Q325 1:E7 3-E3
Q330 1:E7 3-G3
Q335 1:F3 3-J4
Q340 1:F3 3-L4
Q345 1:F3 3-M3
Q350 1:E4 3-M1
Q355 2:E6 3-Q2
Q410 2:J8 4-F4
Q420 2:L8 4-J4
Q505 1:J6 5-K8
Q510 1:J5 5-E1
Q520 1:H5 5-J4
Q530 1:K5 5-H1
Q540 1:K5 5-L3
Q550 1:K5 5-L4
Q610 1:L6 6-E8
Q620 1:N6 6-P8
Q630 1:M6 6-P5
Q660 1:L5 6-N1
Q670 1:L6 6-Q2
Q710 1:J3 7-K8
Q720 1:J3 7-K8
Q730 1:H3 7-N8
Q740 1:H3 7-N8
Q750 1:G4 7-F3
Q760 1:H3 7-H3
Q770 1:H3 7-H1
Q775 1:H3 7-K3
Q780 1:H3 7-K3
Q785 1:H3 7-K2
Q790 1:H4 7-L3
Q795 1:G3 7-P0
Q810 1:M2 8-E7
Q820 1:L2 8-D5
Q830 1:L2 8-D5
Q840 1:L2 8-F5
Q850 1:M2 8-G5
Q860 1:L4 8-B3
%R150 1:P2 1-R4
R160 1:P2 1-R3
R201 1:B2 2-E9
R202 1:C1 2-F9
R204 1:C7 2-B6
R205 1:C7 2-D6
R206 1:B7 2-G8
R207 1:B6 2-G8
R208 1:B6 2-G8
R209 1:C6 2-H8
R210 1:B6 2-H7
R212 1:D4 2-F6
R213 1:C4 2-G6
R214 1:D4 2-G6
R215 1:C4 2-H6
R216 1:C3 2-K7
R217 1:A4 2-M8
R218 1:B4 2-N7
R219 1:B4 2-N8
R221 1:B7 2-R7
R223 1:B4 2-K6
R224 1:C4 2-K5
R225 1:B4 2-L5
R226 1:B4 2-L4
R227 1:B4 2-M4
R229 1:B4 2-M7
R230 1:B4 2-M6
R231 1:B4 2-M6
IPN 220-01397-01
M850-00
T856 PCB Information
C6.2.15
Copyright TEL 31/09/98
Device PCB Circuit Device PCB Circuit Device PCB CircuitDevice PCB Circuit
R232 1:B4 2-M5
R233 1:B4 2-M6
R235 1:B4 2-P6
R237 1:B7 2-Q7
R238 1:B7 2-R7
R239 1:B8 2-R6
R241 1:B8 2-Q6
R242 1:B7 2-Q5
R244 1:C6 2-A5
R245 1:D4 2-D4
R247 1:D3 2-E4
R248 1:C3 2-E3
R249 1:D4 2-F3
R251 1:C4 2-G4
R253 1:C6 2-J2
R254 1:C6 2-K3
R255 1:C7 2-K2
R256 1:D8 2-M3
R257 1:D8 2-N5
R258 1:D8 2-N4
R259 1:D5 2-P4
R260 1:D8 2-N4
R262 1:D8 2-N3
R263 1:C8 2-P3
&R264 1:C8 2-P3
&R265 1:C8 2-P3
&R266 1:C8 2-P3
R267 1:C8 2-R2
R268 1:D2 2-C0
R269 1:C2 2-C1
R270 1:C2 2-D1
R271 1:C3 2-E1
R272 1:C4 2-F2
R273 1:B5 2-G2
R274 1:C4 2-G1
R275 1:C4 2-H0
R277 1:B5 2-J1
R278 1:B5 2-J0
R279 1:B5 2-K0
R280 1:B5 2-K0
R282 1:D7 2-K1
R283 1:D7 2-L1
R284 1:D7 2-L0
R285 1:C8 2-M0
R286 1:C7 2-M0
R287 1:D9 2-M0
R288 1:C6 2-M2
R289 1:D9 2-M0
R290 1:C8 2-N2
R291 1:C8 2-N1
R292 1:D8 2-Q2
R293 1:D9 2-Q2
R294 1:D9 2-Q1
R295 1:D8 2-R1
R296 1:D6 2-P0
R297 1:D7 2-P1
%R298 1:D7 2-Q0
R299 1:C7 2-R0
R300 1:F8 3-B9
R301 1:E9 3-C8
R302 1:F9 3-B7
R303 1:E8 3-C7
R304 1:E8 3-E9
R305 1:E8 3-E7
R306 1:E8 3-B6
R307 1:E8 3-B6
R309 1:E8 3-C6
R311 1:E7 3-D6
R315 1:E7 3-D6
%R317 1:F7 3-D5
R319 1:F7 3-E5
R321 1:F7 3-G5
R323 1:F8 3-G7
R324 1:F7 3-F5
R325 1:F8 3-G5
R327 1:F8 3-H7
R329 1:F5 3-P5
R330 1:E8 3-H9
R333 1:F6 3-P4
R334 1:F3 3-C1
R335 1:F6 3-R4
R337 1:F5 3-R5
R338 1:F9 3-B4
R339 1:E7 3-B4
R341 1:F7 3-C4
R343 1:F7 3-D4
R345 1:E7 3-D4
R347 1:F7 3-E3
R349 1:E7 3-F3
R350 1:F8 3-K9
R351 1:E7 3-F2
R352 1:F3 3-B2
R353 1:E7 3-G2
R354 1:F3 3-C2
R355 1:E7 3-G3
R357 1:E7 3-G4
R359 1:E7 3-H3
R360 1:F3 3-H3
R361 1:F3 3-H3
R362 1:F3 3-J4
R363 1:F3 3-J4
R365 1:F3 3-J3
R367 1:F3 3-K4
R368 1:F4 3-L3
R369 1:F3 3-L4
R370 1:F8 3-K8
R371 1:E8 3-N7
R372 1:E8 3-N7
R373 1:E8 3-N7
R374 1:E9 3-N6
R376 1:F3 3-L2
R381 1:F4 3-H1
R382 1:F4 3-J1
R383 1:F4 3-J0
R384 1:F4 3-J1
R385 1:E4 3-L1
R386 1:F4 3-L2
R387 1:E4 3-M2
R389 1:E4 3-M2
R390 1:E4 3-M2
R391 1:E4 3-M2
R392 1:E4 3-M2
R393 1:F4 3-N2
R394 1:F4 3-P2
#R395 1:E5 3-N1
#R396 1:E5 3-N2
#R397 1:E5 3-N1
R399 1:E6 3-P1
#R410 1:H8 4-B4
#R420 1:H8 4-B3
#R430 1:H8 4-B3
#R440 1:H8 4-C3
R450 1:G7 4-D3
R460 1:M8 4-P5
R470 2:N8 4-P5
R480 2:M8 4-N4
R481 1:J9 4-P7
R490 1:N7 4-P3
R500 1:J4 5-C6
R501 1:J6 5-J8
R502 1:J6 5-J8
R503 1:J6 5-K8
R504 1:K6 5-K9
R505 1:K6 5-L8
R510 1:K6 5-L8
R514 1:K6 5-N6
R515 1:H6 5-H5
#R517 1:G5 5-F2
#R518 1:G5 5-F3
#R519 1:G5 5-G2
R520 1:K6 5-C1
R523 1:J5 5-D1
R525 1:J5 5-D1
R530 1:J5 5-E1
R535 1:J5 5-F1
R540 1:H5 5-K4
R545 1:K5 5-H0
%R550 1:K5 5-K2
%R551 1:K5 5-L2
R555 1:K5 5-L3
R560 1:K4 5-L5
R609 1:L6 6-B8
R613 1:L6 6-C8
R615 1:M5 6-F9
R617 1:M5 6-J8
R619 1:M6 6-L8
R621 1:M6 6-L7
R625 1:N6 6-L7
R629 1:M6 6-P6
R633 1:M5 6-Q8
R637 1:N5 6-K5
R641 1:N5 6-L4
R645 1:N5 6-L5
R649 1:M5 6-M5
R653 1:M5 6-Q4
R657 1:M5 6-D1
R661 1:M5 6-E3
R665 1:M5 6-E2
R669 1:M5 6-E2
R673 1:M5 6-E0
R677 1:M4 6-F4
R681 1:L5 6-L2
R685 1:L5 6-N2
R689 1:L6 6-Q3
R693 1:L6 6-Q1
R696 1:M6 6-Q1
R701 1:K4 7-A9
R702 1:K4 7-C9
R703 1:J3 7-C8
=R705 1:K3 7-A7
R706 1:J3 7-B6
R708 1:H3 7-C7
R710 1:H2 7-E7
R711 1:J2 7-B6
R712 1:J3 7-D9
R713 1:J4 7-F8
%R715 1:K4 7-H6
R717 1:J4 7-H7
R718 1:J4 7-H7
R719 1:J4 7-J6
R720 1:J3 7-K7
R721 1:J3 7-K9
R722 1:J3 7-K8
R723 1:J3 7-M7
R725 1:J4 7-N7
%R726 1:J3 7-N6
R727 1:H3 7-N9
R728 1:H3 7-N8
R742 1:H2 7-B4
R743 1:H2 7-C5
R744 1:G2 7-D4
R746 1:H3 7-E4
R747 1:H3 7-E5
R748 1:J2 7-A1
R749 1:J2 7-B1
R750 1:H4 7-Q7
R752 1:G4 7-F5
R753 1:G4 7-F3
R754 1:G3 7-F3
R756 1:G3 7-G5
R757 1:G4 7-G4
R758 1:H3 7-H4
R759 1:H3 7-H4
R760 1:H3 7-K4
R762 1:H3 7-K4
R763 1:H4 7-L4
R765 1:H3 7-H2
R766 1:G3 7-J3
R767 1:H3 7-K2
R769 1:H3 7-K3
R771 1:H4 7-L3
R772 1:G4 7-M2
R774 1:H4 7-M3
R775 1:H4 7-N2
R777 1:H4 7-R2
R780 1:G2 7-P1
R782 1:G3 7-P1
R784 1:G3 7-P1
R785 1:G3 7-Q1
R786 1:G2 7-R1
R787 1:G2 7-R2
R790 1:G3 7-P0
R791 1:G3 7-Q0
R801 1:M2 8-D7
R802 1:M2 8-D7
R808 1:L2 8-B4
R809 1:L2 8-D5
R810 1:L2 8-D6
R811 1:L2 8-E6
R812 1:L2 8-D5
R813 1:L2 8-D4
R815 1:L2 8-F4
R816 1:L2 8-F4
R818 1:M2 8-F5
R819 1:M2 8-F5
R821 1:M4 8-B3
R822 1:M4 8-E3
R824 1:L4 8-L8
R825 1:L4 8-L8
R826 1:L4 8-L8
R827 1:L4 8-L7
R828 1:L4 8-L7
R829 1:L4 8-P9
R830 1:L3 8-P9
R831 1:L3 8-P9
R832 1:L3 8-P8
R833 1:L3 8-P8
R835 1:L3 8-P8
R836 1:L3 8-P8
R837 1:L3 8-P7
R840 1:L3 8-P7
R841 1:L3 8-P7
R842 1:L3 8-P6
R843 1:L3 8-P6
R845 1:M4 8-P5
R846 1:K2 8-P4
R847 1:K2 8-P4
R848 1:L2 8-J4
R849 1:M4 8-P3
R850 1:K2 8-P4
R853 1:M4 8-N3
R854 1:M4 8-N3
R855 1:M2 8-B0
R859 1:N2 8-C1
R861 1:N2 8-D1
R863 1:N3 8-E1
R865 1:N4 8-E0
R867 1:N3 8-E1
R871 1:N3 8-G2
R872 1:M4 8-H1
R873 1:N3 8-G1
R874 1:N3 8-H0
R875 1:N3 8-G0
R876 1:N3 8-H0
R877 1:M2 8-K2
R879 1:N2 8-L3
RV210 1:B7 2-F9
RV220 1:A4 2-M6
RV310 1:E7 3-D6
RV320 1:E8 3-B4
RV330 1:F7 3-E5
RV805 1:N4 8-F1
IPN 220-01397-01
C6.2.16
T856 PCB Information
M850-00
31/09/98 Copyright TEL
Device PCB Circuit Device PCB CircuitDevice PCB Circuit Device PCB Circuit
SK200 1:D5 2-F0
SK205 1:B5 2-A5
SK310 1:E6 3-R2
SK410 1:G8 4-A4
SK501 1:G6 5-E7
SK502 1:G6 5-E6
SK503 1:G6 5-E5
SK504 1:G5 5-E4
SK505 1:G5 5-E3
SK513 1:H5 5-H3
SK522 1:H6 5-L6
SK531 1:K6 5-P7
SK532 1:K5 5-P6
SK533 1:K5 5-P5
SK534 1:K5 5-P4
SK535 1:K5 5-P3
=SK710 1:K3 7-A7
SK805 1:K3 8-Q9
SK805 1:K3 8-Q7
SK805 1:K3 8-Q6
SK805 1:K3 8-Q9
SK805 1:K3 8-Q6
SK805 1:K3 8-Q9
SK805 1:K3 8-Q7
SK805 1:K3 8-Q8
SK805 1:K3 8-Q6
SK805 1:K3 8-Q5
SK805 1:K3 8-Q7
SK805 1:K3 8-Q8
SK805 1:K3 8-Q7
SK805 1:K3 8-Q8
SK805 1:K3 8-Q6
SK805 1:K3 8-Q8
SK810 1:M3 8-H5
SL201 2:D1 2-B9
SL202 2:D1 2-B8
SL203 2:D2 2-B1
SL204 2:D2 2-B1
SL501 2:J5 5-G1
SL810 1:M2 8-C7
SW230 1:B8 2-B4
T210 1:B2 2-C8
T610 1:L5 6-N2
TP206 1:C5 2-H7
TP302 1:D9 3-B7
TP305 1:E3 3-H3
TP306 1:F9 3-B8
TP307 1:F8 3-B9
TP310 1:D7 3-G2
TP312 1:F9 3-A5
TP401 1:M7 4-G7
TP601 1:N5 6-M9
TP602 1:L6 6-R9
TP603 1:L5 6-J2
TP604 1:L5 6-M6
TP607 1:L4 6-J9
TP710 1:H4 7-H5
TP715 1:J2 7-C6
M850-00
T857 PCB Information
C6.3.1
Copyright TEL 31/09/98
6.3 T857 Exciter PCB
This section contains the following information.
IPN Section Page
220-01398-02 Parts List
Mechanical & Miscellaneous Parts
Mechanical Assembly
Grid Reference Index
PCB Layout - Top Side
PCB Layout - Bottom Side
Test Points & Options Connections - Top Side
Test Points & Options Connections - Bottom Side
Exciter Overview Diagram
Audio Processor Circuit Diagram
Exciter Circuit Diagram
VCO Section Circuit Diagram
Regulators Circuit Diagram
Synthesiser Circuit Diagram
Microcontroller Circuit Diagram
Harmonic Filter Circuit Diagram
6.3.3
6.3.8
6.3.9
6.3.11
6.3.15
6.3.16
6.3.17
6.3.18
6.3.19
6.3.20
6.3.21
6.3.23
6.3.24
6.3.25
6.3.26
6.3.27
IPN 220-01398-02
M850-00
T857 PCB Information
C6.3.3
Copyright TEL 31/09/98
T857 Parts List (IPN 220-01398-02)
How To Use This Parts List
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: the circuit reference, variant (if applicable), IPN and description. A number in the variant col-
umn indicates that this is a variant component which is fitted only to the product type listed. Static sensitive devices are indicated by
an (S) at the start of the description column.
The miscellaneous and mechanical section lists the variant and common parts in IPN order. Where possible, a number in the legend
column indicates their position in the mechanical assembly drawing.
The Parts List Amendments box below lists component changes that took place after the parts list and diagrams in this section were
compiled. These changes (e.g. value changes, added/deleted components, etc.) are listed by circuit reference in alphanumeric order
and supersede the information given in the parts list or diagrams. Components without circuit references are listed in IPN order.
Parts List Amendments
#C315 Changed from 12p (IPN 015-22120-01) to 8p2 (IPN 015-21820-01)
#C316 Changed from 33p (IPN 015-22330-01) to 27p (IPN 015-22270-01)
#L313 Changed from 1.5T/3.0 (IPN 052-08130-15) to 1.5T/2.5 (IPN 052-08125-15)
R326 Chip resistor deleted - fitted as a leaded component across the emitter/base
leads of Q304
New Product
Types
The following component changes apply to the T857-16-0500/26-0500/36-0500 Product Types:
&C269 changed to 4p7 (IPN 015-21470-01)
C271 changed to 56p (IPN 015-22560-01) - circuit reference changed to &C271
C289 changed to 68n (IPN 015-25680-08) - circuit reference changed to &C289
R290 changed to 680Ω (IPN 036-13680-00) - circuit reference changed to &R290.
303-11169-03 T800 chassis: replaced by 303-11169-04
312-01052-01 T800 top lid: replaced by 312-01052-02
312-01053-01 T800 bottom lid: replaced by 312-01053-02
T857-2X-XXXX Only:
to improve power output &
flatness across the band
(710389).
New chassis and lid tooling introduced, incorporating
mechanical improvements and better RF shielding
(750027, 750028 & 750029). Note that the new lids
should be used only with the new chassis.
IPN 220-01398-02
C6.3.4
T857 PCB Information
M850-00
31/09/98 Copyright TEL
Ref Var IPN Description Ref Var IPN Description
C201 020-07470-92 CAP BI-P RA 4M7 50V 6X11 5 LS
C202 020-07470-92 CAP BI-P RA 4M7 50V 6X11 5 LS
C204 020-07470-92 CAP BI-P RA 4M7 50V 6X11 5 LS
C205 020-07470-92 CAP BI-P RA 4M7 50V 6X11 5 LS
C207 014-07470-00 CAP TANT CHIP 4U7 3.5 X 2.8MM
C209 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C210 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C211 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C213 014-08100-00 CAP TANT CHIP 10M 16VW +-20%
C215 014-08220-01 (L)CAP TANT 22UF10V276MSER
C217 015-24220-08 CAP CER 0805 2N2 10% X7R 50V
C219 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C221 014-08220-01 (L)CAP TANT 22UF10V276MSER
C223 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C225 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C227 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C229 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C230 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C232 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C233 020-08470-02 CAP ELE RA 47M 16V 6X11MM
C235 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C237 020-07100-02 CAP ELE RA 1M 50V 5X11MM
C239 020-07470-92 CAP BI-P RA 4M7 50V 6X11 5 LS
C241 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C242 014-08100-00 CAP TANT CHIP 10M 16VW +-20%
C243 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C245 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C247 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C249 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C251 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C253 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C255 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C257 015-22470-01 CAP CER 0805 47P 5% NPO 50V
C259 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C260 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C261 014-07470-00 CAP TANT CHIP 4U7 3.5 X 2.8MM
C263 020-09100-04 CAP ELE RA 100M 10V 6.3X9MM
C265 020-07470-92 CAP BI-P RA 4M7 50V 6X11 5 LS
C267 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
&C269 10 015-21150-01 CAP CER 0805 1P5+-1/4P NPO 50V
&C269 13 015-21150-01 CAP CER 0805 1P5+-1/4P NPO 50V
&C269 15 015-21470-01 CAP CER 0805 4P7+-1/4P NPO 50V
&C269 20 015-21150-01 CAP CER 0805 1P5+-1/4P NPO 50V
&C269 23 015-21150-01 CAP CER 0805 1P5+-1/4P NPO 50V
&C269 25 015-21470-01 CAP CER 0805 4P7+-1/4P NPO 50V
&C269 30 015-21150-01 CAP CER 0805 1P5+-1/4P NPO 50V
&C269 35 015-21470-01 CAP CER 0805 4P7+-1/4P NPO 50V
C271 015-22470-01 CAP CER 0805 47P 5% NPO 50V
C273 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C275 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C277 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C279 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C281 015-25220-08 CAP CER 0805 22N 10% X7R 50V
C283 015-21470-01 CAP CER 0805 4P7+-1/4P NPO 50V
C285 015-21470-01 CAP CER 0805 4P7+-1/4P NPO 50V
C287 020-09100-04 CAP ELE RA 100M 10V 6.3X9MM
C289 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C291 014-08220-01 (L)CAP TANT 22UF10V276MSER
C293 015-27100-10 CAP CER 0805 1M+80-20% Y5V 16V
%C294 015-22470-01 CAP CER 0805 47P 5% NPO 50V
%C295 022-06470-02 CAP MYLAR 470N 10% 50V
C300A 016-08100-01 CAP EL 6X4 10M 20% 16V
C300B 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C301 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C302 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C303 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C304 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C305 015-23100-01 CAP CER 0805 100P 5% NPO 50V
C306 015-23100-01 CAP CER 0805 100P 5% NPO 50V
C307 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C308 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C310 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C311 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C312 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C313 015-22220-01 CAP CER 0805 22P 5% NPO 50V
C314 015-23150-01 CAP CER 0805 150P 5% NPO 50V
#C315 10 015-22120-01 CAP CER 0805 12P 5% NPO 50V
#C315 13 015-22120-01 CAP CER 0805 12P 5% NPO 50V
#C315 15 015-22120-01 CAP CER 0805 12P 5% NPO 50V
#C315 20 015-22120-01 CAP CER 0805 12P 5% NPO 50V
#C315 23 015-22120-01 CAP CER 0805 12P 5% NPO 50V
#C315 25 015-22120-01 CAP CER 0805 12P 5% NPO 50V
#C315 30 015-21560-01 CAP CER 0805 5P6+-1/4P NPO 50V
#C315 35 015-21560-01 CAP CER 0805 5P6+-1/4P NPO 50V
#C316 10 015-22330-01 CAP CER 0805 33P 5% NPO 50V
#C316 13 015-22330-01 CAP CER 0805 33P 5% NPO 50V
#C316 15 015-22330-01 CAP CER 0805 33P 5% NPO 50V
#C316 20 015-22330-01 CAP CER 0805 33P 5% NPO 50V
#C316 23 015-22330-01 CAP CER 0805 33P 5% NPO 50V
#C316 25 015-22330-01 CAP CER 0805 33P 5% NPO 50V
#C316 30 015-22220-01 CAP CER 0805 22P 5% NPO 50V
#C316 35 015-22220-01 CAP CER 0805 22P 5% NPO 50V
C317 020-07470-04 CAP ELE RA 4M7 25V 20%8X13 SOL
C318 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C319 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C320 015-24100-08 CAP CER 0805 1N 10% X7R 50V
#C321 10 015-22220-01 CAP CER 0805 22P 5% NPO 50V
#C321 13 015-22220-01 CAP CER 0805 22P 5% NPO 50V
#C321 15 015-22220-01 CAP CER 0805 22P 5% NPO 50V
#C321 20 015-22220-01 CAP CER 0805 22P 5% NPO 50V
#C321 23 015-22220-01 CAP CER 0805 22P 5% NPO 50V
#C321 25 015-22220-01 CAP CER 0805 22P 5% NPO 50V
#C321 30 015-22100-01 CAP CER 0805 10P+-1/2P NPO 50V
#C321 35 015-22100-01 CAP CER 0805 10P+-1/2P NPO 50V
#C322 10 015-21680-01 CAP CER 0805 6P8+-1/4P NPO 50V
#C322 13 015-21680-01 CAP CER 0805 6P8+-1/4P NPO 50V
#C322 15 015-21680-01 CAP CER 0805 6P8+-1/4P NPO 50V
#C322 20 015-21680-01 CAP CER 0805 6P8+-1/4P NPO 50V
#C322 23 015-21680-01 CAP CER 0805 6P8+-1/4P NPO 50V
#C322 25 015-21680-01 CAP CER 0805 6P8+-1/4P NPO 50V
#C322 30 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
#C322 35 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
C323 015-22330-01 CAP CER 0805 33P 5% NPO 50V
C324 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C325 015-06100-08 CAP CER 1206 100N 10% X7R 50V
#C326 10 015-22220-01 CAP CER 0805 22P 5% NPO 50V
#C326 13 015-22220-01 CAP CER 0805 22P 5% NPO 50V
#C326 15 015-22220-01 CAP CER 0805 22P 5% NPO 50V
#C326 20 015-22150-01 CAP CER 0805 15P 5% NPO 50V
#C326 23 015-22150-01 CAP CER 0805 15P 5% NPO 50V
#C326 25 015-22150-01 CAP CER 0805 15P 5% NPO 50V
#C326 30 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
#C326 35 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
#C327 10 015-21220-01 CAP CER 0805 2P2+-1/4P NPO 50V
#C327 13 015-21220-01 CAP CER 0805 2P2+-1/4P NPO 50V
#C327 15 015-21220-01 CAP CER 0805 2P2+-1/4P NPO 50V
#C327 20 015-21220-01 CAP CER 0805 2P2+-1/4P NPO 50V
#C327 23 015-21220-01 CAP CER 0805 2P2+-1/4P NPO 50V
#C327 25 015-21220-01 CAP CER 0805 2P2+-1/4P NPO 50V
#C327 30 015-21560-01 CAP CER 0805 5P6+-1/4P NPO 50V
#C327 35 015-21560-01 CAP CER 0805 5P6+-1/4P NPO 50V
C328 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C329 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C330 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C331 015-25150-08 CAP CER 0805 15N 10% X7R 50V
C332 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C333 015-05100-07 CAP 1206 CHIP NPO 10nF 25V
C340 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C341 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C342 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C354 015-23150-01 CAP CER 0805 150P 5% NPO 50V
C503 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C505 015-05470-08 CAP CER 1206 47N 10% X7R 50V
C510 015-25150-08 CAP CER 0805 15N 10% X7R 50V
C513 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C535 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C550 014-07470-00 CAP TANT CHIP 4U7 3.5 X 2.8MM
C605 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C610A 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C610B 020-09100-04 CAP ELE RA 100M 10V 6.3X9MM
C611A 020-09100-04 CAP ELE RA 100M 10V 6.3X9MM
C611B 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C623 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C625 020-09470-07 CAPEL470M16V20%V 8*20 3.5L.ESR
C626 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C628 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C630 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C631A 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C634 014-08100-00 CAP TANT CHIP 10M 16VW +-20%
C636 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C638 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C640 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C655 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C660 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C665 020-08100-03 CAP ELE RAD 10UF 50V 5X11MM
C670 025-07330-01 CAP TANT BEAD 3M3 35V
C673 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C677 020-07100-02 CAP ELE RA 1M 50V 5X11MM
C681 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C684 014-08100-00 CAP TANT CHIP 10M 16VW +-20%
C687 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C690 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C693 014-08100-00 CAP TANT CHIP 10M 16VW +-20%
C700 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C703 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C705 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
C706 015-22470-01 CAP CER 0805 47P 5% NPO 50V
C708 014-07470-00 CAP TANT CHIP 4U7 3.5 X 2.8MM
C709 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C710 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C712 015-22470-01 CAP CER 0805 47P 5% NPO 50V
C720 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C722 015-06100-08 CAP CER 1206 100N 10% X7R 50V
Note: %D205 and %D210 are optional level limiting diodes for
special applications.
=R705 (47 ohm) and =SK710 are fitted in place of
=IC700 when an external frequency reference is used.
These two components are supplied with the auxiliary
D-range kits (T800-06-0000 & T800-06-0001).
IPN 220-01398-02
M850-00
T857 PCB Information
C6.3.5
Copyright TEL 31/09/98
Ref Var IPN Description Ref Var IPN Description
C724 014-08220-01 (L)CAP TANT 22UF10V276MSER
C725 014-08220-01 (L)CAP TANT 22UF10V276MSER
C726 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C727 015-23220-01 CAP CER 0805 220P 5% NPO 50V
C729 015-23220-01 CAP CER 0805 220P 5% NPO 50V
%C733 015-23470-08 CAP CER 0805 470P 10% X7R 50V
C735 015-22470-01 CAP CER 0805 47P 5% NPO 50V
C736 015-22470-01 CAP CER 0805 47P 5% NPO 50V
C740A 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C740B 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C741A 014-07470-00 CAP TANT CHIP 4U7 3.5 X 2.8MM
C741B 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C742A 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C742B 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C743 015-22470-01 CAP CER 0805 47P 5% NPO 50V
C745 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C750 025-08100-03 CAP 10M 35V 20% TANT 5MM L/S
C757 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C759 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C761 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C762 014-08220-01 (L)CAP TANT 22UF10V276MSER
C764 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C765 014-07470-00 CAP TANT CHIP 4U7 3.5 X 2.8MM
C767 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C769 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C770 014-08220-01 (L)CAP TANT 22UF10V276MSER
C772 014-08220-01 (L)CAP TANT 22UF10V276MSER
C774 022-06100-16 CAP METAL POLY 100N +-10% 100V
C776 015-24470-08 CAP CER 0805 4N7 10% X7R 50V
C782 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C784 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C786 015-06100-08 CAP CER 1206 100N 10% X7R 50V
C788 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C790 015-21820-01 CAP CER 0805 8P2+-1/4P NPO 50V
C792 015-23120-01 CAP CER 0805 120P 5% NPO 50V
C810 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C812 015-23100-01 CAP CER 0805 100P 5% NPO 50V
C813 015-24100-08 CAP CER 0805 1N 10% X7R 50V
C822 014-07470-00 CAP TANT CHIP 4U7 3.5 X 2.8MM
C823 015-25220-08 CAP CER 0805 22N 10% X7R 50V
C824 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C826 015-23220-01 CAP CER 0805 220P 5% NPO 50V
C827 015-22330-01 CAP CER 0805 33P 5% NPO 50V
C828 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C830 015-25470-08 CAP CER 0805 47N 10% X7R 50V
C838 020-09100-04 CAP ELE RA 100M 10V 6.3X9MM
C841 020-09100-04 CAP ELE RA 100M 10V 6.3X9MM
C844 015-25100-08 CAP CER 0805 10N 10% X7R 50V
C910 015-01680-06 CAP CER 1210 6P8 NPO500VGRM42
C920 015-02100-06 CAP CER 1210 10P NPO500VGRM42
C930 015-01680-06 CAP CER 1210 6P8 NPO500VGRM42
D111 001-00011-60 S) DIODE SR2607 -- USE MR750
D201 001-10000-18 S) DIODE SMD BAT18 S-SW SOT23
D202 001-10000-18 S) DIODE SMD BAT18 S-SW SOT23
D203 001-10000-18 S) DIODE SMD BAT18 S-SW SOT23
D220 001-10000-99 S) DIODE SMD BAV99 D-SW SOT23
D230 001-00010-40 S) DIODE ZENER 33V 1.3W
D240 001-10000-56 S) DIODE SMD BAW56 D-SW SOT23
D250 001-10000-56 S) DIODE SMD BAW56 D-SW SOT23
D260 001-10000-56 S) DIODE SMD BAW56 D-SW SOT23
D270 001-10000-99 S) DIODE SMD BAV99 D-SW SOT23
D510 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23
D610 001-10000-99 S) DIODE SMD BAV99 D-SW SOT23
D620 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23
D630 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23
D635 001-10065-00 DIODE BAT65 SCHOTTKEY SOD123
D640 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23
D710 001-10000-99 S) DIODE SMD BAV99 D-SW SOT23
D720 001-10000-99 S) DIODE SMD BAV99 D-SW SOT23
D730 001-10065-00 DIODE BAT65 SCHOTTKEY SOD123
D740 001-10065-00 DIODE BAT65 SCHOTTKEY SOD123
D810 001-10065-00 DIODE BAT65 SCHOTTKEY SOD123
IC210 002-10003-24 S) IC SMD 324 4X O-AMP SO14
IC220 002-10126-70 S) IC SMD DS1267S10K 2XDIG POT
IC230 002-10003-24 S) IC SMD 324 4X O-AMP SO14
IC240 002-10040-53 S)MC14053B SMD BREAK B4 MAKE
IC250 002-00020-50 S) IC 4N25A OPTOCOUPLER
IC260 002-10003-24 S) IC SMD 324 4X O-AMP SO14
IC300 002-10003-58 S) IC SMD LM358 DUAL O-AMP
IC610 002-00014-58 S) IC 78L05 5V 100MA REG TO92
IC630 002-00014-62 S) IC 317L 100MA REG 3TER TO92
IC640 002-10003-58 S) IC SMD LM358 DUAL O-AMP
IC650 002-10012-32 SMD DS1232LPS-2 LP RESET&W-DOG
=IC700 539-00010-50 TCXO 12.8MHZ +-1PPM -20 +70C
IC710 002-74900-04 S) IC SMD 74HC04D 6X INV BUFFD
IC720 002-74910-04 S) IC SMD 74HCU04 6X INV
IC730 002-10045-20 S) IC SMD 74HC4520T 2XCTR 4BIT
IC740 002-14519-10 S) IC MC145191F SMD SYNTH
IC750 002-10330-78 S) IC MC33078D 2X AMP LO NOISE
IC810 002-08951-20 S) IC AT89C51 PLCC44 MIC 12MHZ
IC820 002-12416-00 S)IC SMD AT24C16N-10SC EEPROM
IC830 002-10003-24 S) IC SMD 324 4X O-AMP SO14
L300 065-00010-04 BEAD FERR F8 4X2X5MM
L302 056-10330-02 (L) IND SMD 330NH
L303 065-00010-04 BEAD FERR F8 4X2X5MM
L305 056-10330-02 (L) IND SMD 330NH
#L307 10 052-08130-15 COIL A/W 1.5T/3.0MM HOR 0.8MM
#L307 13 052-08130-15 COIL A/W 1.5T/3.0MM HOR 0.8MM
#L307 15 052-08130-15 COIL A/W 1.5T/3.0MM HOR 0.8MM
#L307 20 052-08130-15 COIL A/W 1.5T/3.0MM HOR 0.8MM
#L307 23 052-08130-15 COIL A/W 1.5T/3.0MM HOR 0.8MM
#L307 25 052-08130-15 COIL A/W 1.5T/3.0MM HOR 0.8MM
#L307 30 052-08120-15 COIL A/W 1.5T/2MM HOR 0.8MM
#L307 35 052-08120-15 COIL A/W 1.5T/2MM HOR 0.8MM
L309 065-00010-01 BEAD FERR 3B 6 HOLE
L312 052-08130-65 COIL A/W 6.5T/3.0MM HOR 0.8MM
#L313 10 052-08130-15 COIL A/W 1.5T/3.0MM HOR 0.8MM
#L313 13 052-08130-15 COIL A/W 1.5T/3.0MM HOR 0.8MM
#L313 15 052-08130-15 COIL A/W 1.5T/3.0MM HOR 0.8MM
#L313 20 052-08130-15 COIL A/W 1.5T/3.0MM HOR 0.8MM
#L313 23 052-08130-15 COIL A/W 1.5T/3.0MM HOR 0.8MM
#L313 25 052-08130-15 COIL A/W 1.5T/3.0MM HOR 0.8MM
#L313 30 052-08120-15 COIL A/W 1.5T/2MM HOR 0.8MM
#L313 35 052-08120-15 COIL A/W 1.5T/2MM HOR 0.8MM
L314 056-10330-02 (L) IND SMD 330NH
L750 052-08125-15 COIL A/W 1.5T/2.5MM HOR 0.8MM
L910 052-08130-15 COIL A/W 1.5T/3.0MM HOR 0.8MM
L920 052-08130-15 COIL A/W 1.5T/3.0MM HOR 0.8MM
PL205 240-00020-67 HEADER 6W 2X3 PCB MTG STD
PL210 240-00020-67 HEADER 6W 2X3 PCB MTG STD
PL215 240-00020-44 HEADER 10W X2R PCB MTG 5*2
PL220 240-00020-67 HEADER 6W 2X3 PCB MTG STD
Q210 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q220 000-10008-17 S) XSTR SMD BC817-25 NPN SOT23
Q230 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q240 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q250 000-10008-17 S) XSTR SMD BC817-25 NPN SOT23
Q260 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q270 000-00011-91 S) XSTR BD139 NPN AF PWR TO126
Q301 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q302 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q303 000-00012-15 S) XSTR BD234 PNP AF PWR TO126
Q304 000-00005-55 S) XSTR MRF555 NPN RF L/PWR
Q305 000-00032-56 S) XSTR MRF630 NPN T039 UHF 3W
Q306 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF
Q307 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF
Q308 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF
Q309 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q310 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q311 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q505 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q510 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF
Q520 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF
Q530 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF
Q540 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF
Q550 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q610 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF
Q620 000-00012-15 S) XSTR BD234 PNP AF PWR TO126
Q630 000-50011-30 S) XSTR AI BC557B PNP TO92 AF
Q660 000-10008-17 S) XSTR SMD BC817-25 NPN SOT23
Q670 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q710 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q720 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q730 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q740 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q750 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF
Q760 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q770 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q775 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q780 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q785 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q790 000-10003-12 S) XSTR SMD BFR31 N JFET SOT23
Q795 000-10057-10 S) XSTR SMD BR571 NPN SOT23
Q810 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q820 000-10008-17 S) XSTR SMD BC817-25 NPN SOT23
Q830 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q840 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS
Q850 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
Q860 000-10008-48 S) XSTR SMD BCW60 NPN SOT23 SS
R160 036-12100-00 RES M/F 0805 10E 5%
R201 036-13560-00 RES M/F 0805 560E 5%
R202 036-14100-00 RES M/F 0805 1K 5%
R204 036-14220-00 RES M/F 0805 2K2 5%
R205 036-13220-00 RES M/F 0805 220E 5%
R206 036-14100-00 RES M/F 0805 1K 5%
R207 036-14390-00 RES M/F 0805 3K9 5%
R208 036-13560-00 RES M/F 0805 560E 5%
R209 036-15100-00 RES M/F 0805 10K 5%
R210 036-14220-00 RES M/F 0805 2K2 5%
R212 036-16100-00 RES M/F 0805 100K 5%
R213 036-15100-00 RES M/F 0805 10K 5%
R214 036-14820-00 RES M/F 0805 8K2 5%
R215 036-16100-00 RES M/F 0805 100K 5%
R216 036-16100-00 RES M/F 0805 100K 5%
R217 036-14100-00 RES M/F 0805 1K 5%
R218 036-16150-00 RES M/F 0805 150K 5%
R219 036-14220-00 RES M/F 0805 2K2 5%
R221 036-14150-00 RES M/F 0805 1K5 5%
R223 036-17100-00 RES M/F 0805 1M 5%
R224 036-14680-00 RES M/F 0805 6K8 5%
IPN 220-01398-02
C6.3.6
T857 PCB Information
M850-00
31/09/98 Copyright TEL
Ref Var IPN Description Ref Var IPN Description
R225 036-17100-00 RES M/F 0805 1M 5%
R226 036-15100-00 RES M/F 0805 10K 5%
R227 036-14220-00 RES M/F 0805 2K2 5%
R229 036-16470-00 RES M/F 0805 470K 5%
R230 036-16100-00 RES M/F 0805 100K 5%
R231 036-15100-00 RES M/F 0805 10K 5%
R232 036-16330-00 RES M/F 0805 330K 5%
R233 036-16100-00 RES M/F 0805 100K 5%
R235 036-14470-00 RES M/F 0805 4K7 5%
R237 036-15470-00 RES M/F 0805 47K 5%
R238 036-15470-00 RES M/F 0805 47K 5%
R239 036-14150-00 RES M/F 0805 1K5 5%
R241 036-14470-00 RES M/F 0805 4K7 5%
R242 036-14220-00 RES M/F 0805 2K2 5%
R244 036-15100-00 RES M/F 0805 10K 5%
R245 036-16100-00 RES M/F 0805 100K 5%
R247 036-15100-00 RES M/F 0805 10K 5%
R248 036-16100-00 RES M/F 0805 100K 5%
R249 036-16100-00 RES M/F 0805 100K 5%
R251 036-16100-00 RES M/F 0805 100K 5%
R253 036-16100-00 RES M/F 0805 100K 5%
R254 036-16100-00 RES M/F 0805 100K 5%
R255 036-15100-00 RES M/F 0805 10K 5%
R256 036-15470-00 RES M/F 0805 47K 5%
R257 036-16330-00 RES M/F 0805 330K 5%
R258 036-16150-00 RES M/F 0805 150K 5%
R259 036-15220-00 RES M/F 0805 22K 5%
R260 036-15470-00 RES M/F 0805 47K 5%
R262 036-15470-00 RES M/F 0805 47K 5%
R263 036-14470-00 RES M/F 0805 4K7 5%
&R264 10 036-15220-00 RES M/F 0805 22K 5%
&R264 13 036-15220-00 RES M/F 0805 22K 5%
&R264 15 036-15270-00 RES M/F 0805 27K 5%
&R264 20 036-15220-00 RES M/F 0805 22K 5%
&R264 23 036-15220-00 RES M/F 0805 22K 5%
&R264 25 036-15270-00 RES M/F 0805 27K 5%
&R264 30 036-15220-00 RES M/F 0805 22K 5%
&R264 35 036-15270-00 RES M/F 0805 27K 5%
&R265 10 036-15150-00 RES M/F 0805 15K 5%
&R265 13 036-15150-00 RES M/F 0805 15K 5%
&R265 15 036-15180-00 RES M/F 0805 18K 5%
&R265 20 036-15150-00 RES M/F 0805 15K 5%
&R265 23 036-15150-00 RES M/F 0805 15K 5%
&R265 25 036-15180-00 RES M/F 0805 18K 5%
&R265 30 036-15150-00 RES M/F 0805 15K 5%
&R265 35 036-15180-00 RES M/F 0805 18K 5%
&R266 10 036-15470-00 RES M/F 0805 47K 5%
&R266 13 036-15470-00 RES M/F 0805 47K 5%
&R266 15 036-15560-00 RES M/F 0805 56K 5%
&R266 20 036-15470-00 RES M/F 0805 47K 5%
&R266 23 036-15470-00 RES M/F 0805 47K 5%
&R266 25 036-15560-00 RES M/F 0805 56K 5%
&R266 30 036-15470-00 RES M/F 0805 47K 5%
&R266 35 036-15560-00 RES M/F 0805 56K 5%
R267 036-14220-00 RES M/F 0805 2K2 5%
R268 036-13100-00 RES M/F 0805 100E 5%
R269 036-15100-00 RES M/F 0805 10K 5%
R270 036-13470-00 RES M/F 0805 470E 5%
R271 036-16390-00 RES M/F 0805 390K 5%
R272 036-13560-00 RES M/F 0805 560E 5%
R273 036-15120-00 RES M/F 0805 12K 5%
R274 036-15150-00 RES M/F 0805 15K 5%
R275 036-14270-00 RES M/F 0805 2K7 5%
R277 036-16100-00 RES M/F 0805 100K 5%
R278 036-16120-00 RES M/F 0805 120K 5%
R279 036-17100-00 RES M/F 0805 1M 5%
R280 036-15100-00 RES M/F 0805 10K 5%
R282 036-15560-00 RES M/F 0805 56K 5%
R283 036-15560-00 RES M/F 0805 56K 5%
R284 036-17100-00 RES M/F 0805 1M 5%
R285 036-10000-00 RES M/F 0805 ZERO OHM
R286 036-14220-00 RES M/F 0805 2K2 5%
R287 036-15100-00 RES M/F 0805 10K 5%
R288 036-15150-00 RES M/F 0805 15K 5%
R289 036-16100-00 RES M/F 0805 100K 5%
R290 036-13560-00 RES M/F 0805 560E 5%
R291 036-10000-00 RES M/F 0805 ZERO OHM
R292 036-14470-00 RES M/F 0805 4K7 5%
R293 036-15470-00 RES M/F 0805 47K 5%
R294 036-14470-00 RES M/F 0805 4K7 5%
R295 036-14270-00 RES M/F 0805 2K7 5%
R296 036-14100-00 RES M/F 0805 1K 5%
R297 036-14560-00 RES M/F 0805 5K6 5%
%R298 036-16100-00 RES M/F 0805 100K 5%
R299 036-14270-00 RES M/F 0805 2K7 5%
R300 036-12220-00 RES M/F 0805 22E 5%
R301 036-15100-00 RES M/F 0805 10K 5%
R302 036-15220-00 RES M/F 0805 22K 5%
R303 036-14270-00 RES M/F 0805 2K7 5%
R304 036-16100-00 RES M/F 0805 100K 5%
R305 036-15220-00 RES M/F 0805 22K 5%
R306 036-14150-00 RES M/F 0805 1K5 5%
R307 036-13470-00 RES M/F 0805 470E 5%
R308 036-14220-00 RES M/F 0805 2K2 5%
R309 036-15100-00 RES M/F 0805 10K 5%
R310 036-13470-00 RES M/F 0805 470E 5%
R311 036-13470-00 RES M/F 0805 470E 5%
R312 036-14100-00 RES M/F 0805 1K 5%
R313 036-12220-00 RES M/F 0805 22E 5%
R314 036-13470-00 RES M/F 0805 470E 5%
R323 036-14150-00 RES M/F 0805 1K5 5%
R324 036-12470-00 RES M/F 0805 47E 5%
R325 036-13560-00 RES M/F 0805 560E 5%
R326 036-12470-00 RES M/F 0805 47E 5%
R327 036-14100-00 RES M/F 0805 1K 5%
R328 036-13470-00 RES M/F 0805 470E 5%
R329 036-12100-00 RES M/F 0805 10E 5%
#R330 10 030-53270-20 RES FILM AI 270E 5% 0.4W 4X1.6
#R330 13 030-53270-20 RES FILM AI 270E 5% 0.4W 4X1.6
#R330 15 030-53270-20 RES FILM AI 270E 5% 0.4W 4X1.6
#R330 20 030-53270-20 RES FILM AI 270E 5% 0.4W 4X1.6
#R330 23 030-53270-20 RES FILM AI 270E 5% 0.4W 4X1.6
#R330 25 030-53270-20 RES FILM AI 270E 5% 0.4W 4X1.6
#R330 30 030-53220-20 RES FILM AI 220E 5% 0.4W 4X1.6
#R330 35 030-53220-20 RES FILM AI 220E 5% 0.4W 4X1.6
#R331 10 030-52180-20 RES FILM AI 18E 5% 0.4W 4X1.6
#R331 13 030-52180-20 RES FILM AI 18E 5% 0.4W 4X1.6
#R331 15 030-52180-20 RES FILM AI 18E 5% 0.4W 4X1.6
#R331 20 030-52180-20 RES FILM AI 18E 5% 0.4W 4X1.6
#R331 23 030-52180-20 RES FILM AI 18E 5% 0.4W 4X1.6
#R331 25 030-52180-20 RES FILM AI 18E 5% 0.4W 4X1.6
#R331 30 030-52220-20 RES FILM AI 22E 5% 0.4W 4X1.6
#R331 35 030-52220-20 RES FILM AI 22E 5% 0.4W 4X1.6
#R332 10 030-53270-20 RES FILM AI 270E 5% 0.4W 4X1.6
#R332 13 030-53270-20 RES FILM AI 270E 5% 0.4W 4X1.6
#R332 15 030-53270-20 RES FILM AI 270E 5% 0.4W 4X1.6
#R332 20 030-53270-20 RES FILM AI 270E 5% 0.4W 4X1.6
#R332 23 030-53270-20 RES FILM AI 270E 5% 0.4W 4X1.6
#R332 25 030-53270-20 RES FILM AI 270E 5% 0.4W 4X1.6
#R332 30 030-53220-20 RES FILM AI 220E 5% 0.4W 4X1.6
#R332 35 030-53220-20 RES FILM AI 220E 5% 0.4W 4X1.6
R333 036-12470-00 RES M/F 0805 47E 5%
R334 032-33100-10 RES M/F PWR 100E 5% 2W 12X4.5
R335 036-12100-00 RES M/F 0805 10E 5%
R340 036-14150-00 RES M/F 0805 1K5 5%
R341 036-15470-00 RES M/F 0805 47K 5%
R342 036-15100-00 RES M/F 0805 10K 5%
R343 036-15150-00 RES M/F 0805 15K 5%
R344 036-15470-00 RES M/F 0805 47K 5%
R345 036-16120-00 RES M/F 0805 120K 5%
R346 036-15100-00 RES M/F 0805 10K 5%
R347 036-14100-00 RES M/F 0805 1K 5%
R348 036-14100-00 RES M/F 0805 1K 5%
R349 036-16100-00 RES M/F 0805 100K 5%
R355 036-14100-00 RES M/F 0805 1K 5%
R356 036-15150-00 RES M/F 0805 15K 5%
R357 036-15150-00 RES M/F 0805 15K 5%
R358 036-14470-00 RES M/F 0805 4K7 5%
R359 036-14100-00 RES M/F 0805 1K 5%
R501 036-15100-00 RES M/F 0805 10K 5%
R502 036-15100-00 RES M/F 0805 10K 5%
R503 036-14560-00 RES M/F 0805 5K6 5%
R504 036-13330-00 RES M/F 0805 330E 5%
R505 036-15150-00 RES M/F 0805 15K 5%
R510 036-14150-00 RES M/F 0805 1K5 5%
R514 036-12330-00 RES M/F 0805 33E 5%
R515 036-12560-00 RES M/F 0805 56E 5%
R517 036-13330-00 RES M/F 0805 330E 5%
R518 036-12180-00 RES M/F 0805 18E 5%
R519 036-13330-00 RES M/F 0805 330E 5%
R520 036-16120-00 RES M/F 0805 120K 5%
R525 036-15470-00 RES M/F 0805 47K 5%
R530 036-15220-00 RES M/F 0805 22K 5%
R535 036-15100-00 RES M/F 0805 10K 5%
R540 036-14220-00 RES M/F 0805 2K2 5%
R545 036-14470-00 RES M/F 0805 4K7 5%
R550 036-14470-00 RES M/F 0805 4K7 5%
R555 036-14470-00 RES M/F 0805 4K7 5%
R560 036-14270-00 RES M/F 0805 2K7 5%
R609 036-14100-00 RES M/F 0805 1K 5%
R613 036-13560-00 RES M/F 0805 560E 5%
R615 036-13100-00 RES M/F 0805 100E 5%
R617 036-10000-00 RES M/F 0805 ZERO OHM
R619 032-31100-00 RES M/F PWR 1E0 5% 1W 12X4.5MM
R621 032-31100-00 RES M/F PWR 1E0 5% 1W 12X4.5MM
R625 036-14100-00 RES M/F 0805 1K 5%
R629 032-33270-00 RES M/F PWR 270E 5% 1W 12X4.5
R633 036-14680-00 RES M/F 0805 6K8 5%
R637 036-12220-00 RES M/F 0805 22E 5%
R641 036-14150-00 RES M/F 0805 1K5 5%
R645 036-13470-00 RES M/F 0805 470E 5%
R649 036-14470-00 RES M/F 0805 4K7 5%
R653 036-15100-00 RES M/F 0805 10K 5%
R657 036-15100-00 RES M/F 0805 10K 5%
R661 036-15100-00 RES M/F 0805 10K 5%
R665 036-16100-00 RES M/F 0805 100K 5%
R669 036-15470-00 RES M/F 0805 47K 5%
R673 036-16100-00 RES M/F 0805 100K 5%
R677 036-15470-00 RES M/F 0805 47K 5%
R681 036-13100-00 RES M/F 0805 100E 5%
R685 036-15150-00 RES M/F 0805 15K 5%
R689 036-12100-00 RES M/F 0805 10E 5%
R693 036-16100-00 RES M/F 0805 100K 5%
R696 036-15560-00 RES M/F 0805 56K 5%
R701 036-12220-00 RES M/F 0805 22E 5%
R702 036-17100-00 RES M/F 0805 1M 5%
IPN 220-01398-02
M850-00
T857 PCB Information
C6.3.7
Copyright TEL 31/09/98
Ref Var IPN Description Ref Var IPN Description
R703 036-17100-00 RES M/F 0805 1M 5%
R706 036-15150-00 RES M/F 0805 15K 5%
R708 036-16100-00 RES M/F 0805 100K 5%
R710 036-13100-00 RES M/F 0805 100E 5%
R711 036-13100-00 RES M/F 0805 100E 5%
R712 036-12100-00 RES M/F 0805 10E 5%
R713 036-12220-00 RES M/F 0805 22E 5%
%R715 036-14100-00 RES M/F 0805 1K 5%
R717 036-14270-00 RES M/F 0805 2K7 5%
R718 036-16150-00 RES M/F 0805 150K 5%
R719 036-16150-00 RES M/F 0805 150K 5%
R720 036-15390-00 RES M/F 0805 39K 5%
R721 036-15100-00 RES M/F 0805 10K 5%
R722 036-15100-00 RES M/F 0805 10K 5%
R723 036-14270-00 RES M/F 0805 2K7 5%
R725 036-15390-00 RES M/F 0805 39K 5%
%R726 036-13100-00 RES M/F 0805 100E 5%
R727 036-15100-00 RES M/F 0805 10K 5%
R728 036-15100-00 RES M/F 0805 10K 5%
R742 036-13150-00 RES M/F 0805 150E 5%
R743 036-13150-00 RES M/F 0805 150E 5%
R744 036-12220-00 RES M/F 0805 22E 5%
R746 036-12220-00 RES M/F 0805 22E 5%
R747 036-12220-00 RES M/F 0805 22E 5%
R748 036-15470-00 RES M/F 0805 47K 5%
R749 036-15470-00 RES M/F 0805 47K 5%
R750 036-12220-00 RES M/F 0805 22E 5%
R752 036-12220-00 RES M/F 0805 22E 5%
R753 036-17100-00 RES M/F 0805 1M 5%
R754 036-14100-00 RES M/F 0805 1K 5%
R756 036-16470-00 RES M/F 0805 470K 5%
R757 036-16470-00 RES M/F 0805 470K 5%
R758 036-14120-00 RES M/F 0805 1K2 5%
R759 036-13330-00 RES M/F 0805 330E 5%
R760 036-13180-00 RES M/F 0805 180E 5%
R762 036-13100-00 RES M/F 0805 100E 5%
R763 036-13100-00 RES M/F 0805 100E 5%
R765 036-13680-00 RES M/F 0805 680E 5%
R766 036-14100-00 RES M/F 0805 1K 5%
R767 036-13680-00 RES M/F 0805 680E 5%
R769 036-13180-00 RES M/F 0805 180E 5%
R771 036-14820-00 RES M/F 0805 8K2 5%
R772 036-15220-00 RES M/F 0805 22K 5%
R774 036-14820-00 RES M/F 0805 8K2 5%
R775 036-15180-00 RES M/F 0805 18K 5%
R777 036-14220-00 RES M/F 0805 2K2 5%
R780 036-12680-00 RES M/F 0805 68E 5%
R782 036-12180-00 RES M/F 0805 18E 5%
R784 036-13120-00 RES M/F 0805 120E 5%
R785 036-14330-00 RES M/F 0805 3K3 5%
R786 036-12100-00 RES M/F 0805 10E 5%
R787 036-12100-00 RES M/F 0805 10E 5%
R790 036-13390-00 RES M/F 0805 390E 5%
R791 036-14100-00 RES M/F 0805 1K 5%
R801 036-16150-00 RES M/F 0805 150K 5%
R802 036-15470-00 RES M/F 0805 47K 5%
R808 036-12100-00 RES M/F 0805 10E 5%
R809 036-14470-00 RES M/F 0805 4K7 5%
R810 036-14470-00 RES M/F 0805 4K7 5%
R811 036-14470-00 RES M/F 0805 4K7 5%
R812 036-14470-00 RES M/F 0805 4K7 5%
R813 036-14470-00 RES M/F 0805 4K7 5%
R815 036-15470-00 RES M/F 0805 47K 5%
R816 036-16150-00 RES M/F 0805 150K 5%
R818 036-14470-00 RES M/F 0805 4K7 5%
R819 036-14470-00 RES M/F 0805 4K7 5%
R821 036-15470-00 RES M/F 0805 47K 5%
R822 036-15470-00 RES M/F 0805 47K 5%
R824 036-14220-00 RES M/F 0805 2K2 5%
R825 036-14220-00 RES M/F 0805 2K2 5%
R826 036-14220-00 RES M/F 0805 2K2 5%
R827 036-14220-00 RES M/F 0805 2K2 5%
R828 036-14220-00 RES M/F 0805 2K2 5%
R829 036-14220-00 RES M/F 0805 2K2 5%
R830 036-14220-00 RES M/F 0805 2K2 5%
R831 036-14220-00 RES M/F 0805 2K2 5%
R832 036-14220-00 RES M/F 0805 2K2 5%
R833 036-14220-00 RES M/F 0805 2K2 5%
R835 036-14220-00 RES M/F 0805 2K2 5%
R836 036-14220-00 RES M/F 0805 2K2 5%
R837 036-14220-00 RES M/F 0805 2K2 5%
R840 036-14220-00 RES M/F 0805 2K2 5%
R841 036-14220-00 RES M/F 0805 2K2 5%
R842 036-14220-00 RES M/F 0805 2K2 5%
R843 036-14220-00 RES M/F 0805 2K2 5%
R845 036-13470-00 RES M/F 0805 470E 5%
R846 036-13470-00 RES M/F 0805 470E 5%
R847 036-13470-00 RES M/F 0805 470E 5%
R848 036-14470-00 RES M/F 0805 4K7 5%
R849 036-13470-00 RES M/F 0805 470E 5%
R850 036-13470-00 RES M/F 0805 470E 5%
R853 036-14470-00 RES M/F 0805 4K7 5%
R854 036-14470-00 RES M/F 0805 4K7 5%
R855 036-14470-00 RES M/F 0805 4K7 5%
R859 036-16150-00 RES M/F 0805 150K 5%
R861 036-16150-00 RES M/F 0805 150K 5%
R863 036-16150-00 RES M/F 0805 150K 5%
R865 036-16100-00 RES M/F 0805 100K 5%
R867 036-16100-00 RES M/F 0805 100K 5%
R871 036-15470-00 RES M/F 0805 47K 5%
R872 036-14470-00 RES M/F 0805 4K7 5%
R873 036-15330-00 RES M/F 0805 33K 5%
R874 036-14470-00 RES M/F 0805 4K7 5%
R875 036-15470-00 RES M/F 0805 47K 5%
R876 036-14470-00 RES M/F 0805 4K7 5%
R877 036-14470-00 RES M/F 0805 4K7 5%
R879 036-15100-00 RES M/F 0805 10K 5%
RV210 040-05100-23 POT 10K LOG PCB 15MM SLOT SFT
RV220 042-05470-06 RES PRE 47K CAR 6MM FLAT T/ADJ
RV805 042-05220-07 RES PRE 22K CAR 6MM FLAT D/ADJ
SK205 240-02020-05 SKT STEREO PHONE JACK PCB MTG
SK310 240-02100-44 SKT COAX MINI JACK PCB MT ANG.
SK420 240-02100-44 SKT COAX MINI JACK PCB MT ANG.
SK501 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK502 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK503 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK504 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK505 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK513 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK522 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK531 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK532 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK533 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK534 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK535 240-04021-77 SKT JACK 1.3 PCB MT 64W
SK805 240-10000-07 CONN SMD SKT 16W 2R M-MATCH
SK810 240-04020-42 SKT 44 PIN SMD PLCC
SW101 232-00020-26 BUTTON 232-00010-26 SWITCH
SW230 232-00010-26 SWITCH PUSH SPDT R-ANG PCB MTG
T210 053-00010-17 XFMR T4030 LINE MATCH POTCORE
T610 050-00016-50 COIL TAIT NO 650 455KHZ
IPN 220-01398-02
C6.3.8
T857 PCB Information
M850-00
31/09/98 Copyright TEL
IPN Legend Description IPN Legend Description
T857 Mechanical & Miscellaneous Parts (220-01398-02)
070-01001-00 13/25 D-RANGE 15 WAY COMPL T800
070-02001-00 LED RED COMPL T800 RX/TX/EX
070-02002-00 LED GREEN COMPL T800 RX/TX/EX
206-00010-11 COAX 50 OHM RG316-U PTFE
Connects SK310 to SK420.
220-01145-02 1 PCB T85X VCO
220-01398-02 2 PCB T857 SERIES II TOP
232-00020-26 3 BUTTON 232-00010-26 SWITCH
240-00100-43 PLG COAX MINI PIN CRIMP 1.5D
For coax connecting SK310 to SK420.
240-02100-06 4 SKT COAX N TYPE PNL MTG OP-TER
240-04020-62 SKT 2 W RECEP SHORTING LINK
PL205/210/215/220.
303-11169-03 5 CHASSIS PAINTED T800 SERIES
303-23118-00 6 COVER A3M2247 D RANGE T855/7
303-50074-00 7 CLIP A3M2246 SPRING CLAMP T857
303-50078-00 8 CLIP A4M2630 SPR. CABLE CLAMP
308-01007-01 9 HANDLE BASE STATION SERIES II
312-01052-01 10 LID TOP PNTD A1M2364 T800
312-01053-01 11 LID BOTTOM PNTD A1M2364 T800
316-06619-00 12 PNL FRT EX, NO EX OUT SER II
345-00040-10 14 SCRW M3X6MM P/POZ ST BZ
349-00020-36 15 LIM)SCREW TT M3X8m PANTORX BLK
349-00020-43 16 SCRW T/T M4X12MM P/POZ BZ
349-00020-45 17 SCRW T/T M4X20MM P/POZ BZ
350-00016-42 18 SPACER 5MM HI 8MM ST 2.5MM HO
352-00010-08 19 NUT M3 COLD FORM HEX ST BZ
352-00010-29 20 NUT M4 NYLOC HEX
353-00010-10 21 WSHR M3 FLAT 7MMX0.6MM ST BZ
353-00010-13 22 WSHR M3 S/PROOF INT BZ
362-00010-23 23 GASKET SIL TO-220 CLIP MTG.
362-00010-33 24 GROMMET LED MTG 3MM
365-00011-53 LABEL 104X37MM
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 SERIES II
410-01082-01 CRTN 10 T800 KIWI 423X410X360
IPN 220-01398-02
M850-00
T857 PCB Information
C6.3.11
Copyright TEL 31/09/98
Device PCB Circuit Device PCB CircuitDevice PCB Circuit Device PCB Circuit
T857 Grid Reference Index (IPN 220-01398-02)
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 charac-
ters 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.
C201 1:C1 2-B8
C202 1:C1 2-C8
C204 1:A2 2-E8
C205 1:A2 2-E8
C207 1:C7 2-B6
C209 1:C6 2-D6
C210 1:C7 2-K0
C211 1:B7 2-F8
C213 1:B6 2-G8
C215 1:B6 2-G8
C217 1:C6 2-H8
C219 1:C6 2-H7
C221 1:D5 2-G6
C223 1:C5 2-J6
C225 1:C3 2-K7
C227 1:B4 2-K7
C229 1:B3 2-L7
C230 1:B4 2-J0
C232 1:A4 2-M7
C233 1:A5 2-N7
C235 1:B5 2-K5
C237 1:C4 2-K5
C239 1:C4 2-L4
C241 1:B4 2-M6
C242 1:B4 2-L6
C243 1:B4 2-P6
C245 1:C5 2-A4
C247 1:D4 2-B4
C249 1:D4 2-C4
C251 1:C3 2-E4
C253 1:D3 2-E3
C255 1:D3 2-D2
C257 1:D3 2-F2
C259 1:C6 2-J2
C260 1:D8 2-H0
C261 1:C6 2-K2
C263 1:D6 2-L3
C265 1:D6 2-N4
C267 1:C8 2-P3
&C269 1:C8 2-P3
C271 1:C8 2-Q3
C273 1:C8 2-Q4
C275 1:D3 2-E1
C277 1:C4 2-G1
C279 1:B4 2-G1
C281 1:B5 2-J1
C283 1:B5 2-K0
C285 1:D7 2-L0
C287 1:C6 2-M1
C289 1:C8 2-N1
C291 1:D7 2-P1
C293 1:D7 2-Q1
%C294 1:D7 2-Q0
%C295 1:D6 2-Q0
C300A 1:F9 3-J8
C300B 1:F8 3-K8
C301 1:E9 3-B8
C302 1:E8 3-B7
C303 1:E9 3-C8
C304 1:F8 3-C7
C305 1:F8 3-D7
C306 1:F8 3-E6
C307 1:F8 3-E7
C308 1:F8 3-G8
C310 1:F5 3-B4
C311 1:F4 3-C1
C312 1:F5 3-D3
C313 1:F4 3-D1
C314 1:F4 3-E4
#C315 1:F4 3-E3
#C316 1:E4 3-F3
C317 1:F7 3-H5
C318 1:F7 3-H5
C319 1:F5 3-H4
C320 1:E5 3-J4
#C321 1:E5 3-H4
#C322 1:E6 3-J3
C323 1:E6 3-L3
C324 1:F7 3-M5
C325 1:F7 3-N5
#C326 1:E8 3-M4
#C327 1:E8 3-M3
C328 1:E4 3-G1
C329 1:E4 3-H2
C330 1:E3 3-J2
C331 1:E3 3-K2
C332 1:E4 3-L2
C333 1:E3 3-J0
C340 1:E9 3-P2
C341 1:E8 3-P2
C342 1:E8 3-R3
C354 1:E3 3-R1
C503 1:K6 5-L9
C505 1:K6 5-M6
C510 1:J5 5-C0
C513 1:H5 5-G2
C535 1:K5 5-M2
C550 1:K4 5-L0
C605 1:L6 6-D8
C610A 1:M5 6-F8
C610B 1:M5 6-G8
C611A 1:L5 6-H8
C611B 1:M5 6-J8
C623 1:M6 6-N8
C625 1:M6 6-Q8
C626 1:M6 6-R8
C628 1:M6 6-R8
C630 1:M5 6-K5
C631A 1:M5 6-M6
C634 1:N5 6-M4
C636 1:M5 6-M4
C638 1:M6 6-P5
C640 1:M5 6-R6
C655 1:M4 6-C1
C660 1:L5 6-K1
C665 1:L5 6-K1
C670 1:L6 6-L1
C673 1:L5 6-P2
C677 1:L6 6-P1
C681 1:M5 6-R3
C684 1:M6 6-R3
C687 1:L6 6-Q1
C690 1:L6 6-R1
C693 1:L6 6-R1
C700 1:K4 7-A8
C703 1:J3 7-B7
C705 1:J3 7-B7
C706 1:J2 7-B5
%C707 1:K4 7-C8
C708 1:J2 7-C9
C709 1:K4 7-D9
C710 1:J3 7-E8
C712 1:H2 7-E7
%C713 1:H2 7-E6
C720 1:J3 7-F8
C722 1:J4 7-G8
C724 1:J4 7-H6
C725 1:J4 7-J6
C726 1:K4 7-J6
C727 1:J3 7-J8
C729 1:H3 7-M8
%C733 1:J3 7-M5
C735 1:J2 7-A1
C736 1:J2 7-B1
C740A 1:H2 7-B4
C740B 1:H2 7-B3
C741A 1:H2 7-C4
C741B 1:G2 7-C3
C742A 1:H2 7-D4
C742B 1:H3 7-D3
C743 1:H2 7-B1
C745 1:G3 7-D1
C750 1:H4 7-Q7
C757 1:G4 7-F5
C759 1:G4 7-G4
C761 1:G3 7-J4
C762 1:G3 7-J4
C764 1:H3 7-H2
C765 1:G3 7-J2
C767 1:H3 7-K3
C769 1:H4 7-M4
C770 1:H4 7-N4
C772 1:G4 7-M2
C774 1:H4 7-P2
C776 1:H4 7-N1
C782 1:G2 7-N1
C784 1:G2 7-R1
C786 1:G2 7-R1
C788 1:G3 7-P0
C790 1:G3 7-R0
C792 1:G4 7-R0
C810 1:L3 8-K8
C812 1:L2 8-F5
C813 1:K2 8-H5
C822 1:M2 8-B2
C823 1:M3 8-C2
C824 1:M2 8-C1
C826 1:N3 8-C0
C827 1:N3 8-D0
C828 1:N3 8-E0
C830 1:N3 8-R1
C838 1:N4 8-F0
C841 1:N2 8-K2
C844 1:M2 8-L2
C910 1:P7 9-E6
C920 1:P7 9-G6
C930 1:P6 9-H6
D111 1:P4 1-R1
D201 1:F5 3-C3
D202 1:F5 3-C4
D203 1:F4 3-D3
%D205 1:B2 2-D9
%D210 1:B2 2-E9
D220 1:B4 2-P7
D220 1:B4 2-P6
D230 1:B7 2-R5
D240 1:D4 2-C4
D240 1:D4 2-B2
D250 1:D3 2-E2
D250 1:D3 2-D3
D260 1:C2 2-C2
D260 1:C2 2-C2
D270 1:D2 2-C1
D270 1:D2 2-C1
D510 1:K6 5-K8
D510 1:K6 5-K8
D610 1:N6 6-L6
D610 1:N6 6-K6
D620 1:N4 6-B1
D620 1:N4 6-B2
D630 1:M5 6-G2
D630 1:M5 6-G3
D635 1:M4 6-G3
D640 1:L5 6-M1
D640 1:L5 6-M2
D710 1:J3 7-L8
D710 1:J3 7-L8
D720 1:H3 7-P8
D720 1:H3 7-P8
D730 1:H3 7-H1
D740 1:H3 7-J2
D810 1:M2 8-B7
IC210 1:C7 2-J0
IC210 1:C7 2-Q0
IC210 1:C7 2-K2
IC210 1:C7 2-L1
IC210 1:C7 2-C6
IC220 1:D6 2-P0
IC220 1:D6 2-M3
IC220 1:D6 2-D5
IC230 1:B4 2-H0
IC230 1:B4 2-J0
IC230 1:B4 2-L5
IC230 1:B4 2-N6
IPN 220-01398-02
C6.3.12
T857 PCB Information
M850-00
31/09/98 Copyright TEL
Device PCB Circuit Device PCB CircuitDevice PCB Circuit Device PCB Circuit
IC230 1:B4 2-G1
IC240 1:D4 2-F3
IC250 1:D3 2-E1
IC260 1:D8 2-N0
IC260 1:D8 2-H0
IC260 1:D8 2-Q2
IC260 1:D8 2-Q3
IC260 1:D8 2-N3
IC300 1:F8 3-D7
IC300 1:F8 3-J8
IC300 1:F8 3-L0
IC610 1:M5 6-G8
IC630 1:N5 6-K5
IC640 1:M5 6-F1
IC640 1:M5 6-Q6
IC640 1:M5 6-N6
IC650 1:L5 6-F4
=IC700 1:K3 7-A8
IC710 1:J2 7-E8
IC710 1:J2 7-C6
IC710 1:J2 7-G0
IC710 1:J2 7-D6
IC710 1:J2 7-D7
IC710 1:J2 7-D6
IC710 1:J2 7-C6
IC720 1:J3 7-P6
IC720 1:J3 7-J0
IC720 1:J3 7-N7
IC720 1:J3 7-M7
IC720 1:J3 7-K7
IC720 1:J3 7-F8
IC720 1:J3 7-K0
IC730 1:J4 7-H8
IC730 1:J4 7-G7
IC740 1:H2 7-D1
IC750 1:H4 7-M3
IC750 1:H4 7-H5
IC750 1:H4 7-Q7
IC820 1:L4 8-N2
IC830 1:N3 8-J0
IC830 1:N3 8-Q1
IC830 1:N3 8-J0
IC830 1:N3 8-C0
IC830 1:N3 8-J1
L300 1:F5 3-G5
L302 1:F5 3-C3
L303 1:F7 3-M5
L305 1:F4 3-E3
L306 1:F4 3-E4
#L307 1:F5 3-H4
L307 1:F4 3-F4
L308 1:E6 3-J4
L309 1:E6 3-K3
L310 1:E6 3-L4
L312 1:E7 3-M4
#L313 1:E7 3-M4
L314 1:E8 3-R4
L750 1:G3 7-Q0
L910 1:P7 9-F7
L920 1:P7 9-H7
LK302 1:E3 3-J0
P100 1:P6 1-R8
P150 1:P2 1-Q4
P160 1:P2 1-Q4
P170 1:P2 1-Q3
P204 1:D1 2-A8
P208 1:D1 2-A8
P215 1:D4 2-A2
P217 1:D4 2-A2
P219 1:D2 2-A1
P225 1:D2 2-A0
P230 1:C5 2-B0
P231 1:D8 2-B0
P233 1:C1 2-R9
P235 1:C1 2-R9
P237 1:B7 2-R8
P239 1:C7 2-R8
P240 1:C7 2-R8
P243 1:B7 2-R7
P244 1:B7 2-R7
P245 1:B8 2-R6
P247 1:B8 2-R6
P248 1:B7 2-R6
P249 1:C7 2-R5
P251 1:C7 2-R5
P255 1:D4 2-R4
P257 1:C2 2-R4
P259 1:B8 2-R3
P261 1:B8 2-R3
P263 1:B2 2-R2
P267 1:C8 2-N2
P269 1:D8 2-P2
P271 1:C9 2-N1
P273 1:D9 2-P0
P275 1:D7 2-Q0
P805 1:M2 8-A7
P810 1:L3 8-A5
P820 1:L4 8-M8
P825 1:L4 8-M8
P830 1:L4 8-M8
P835 1:L4 8-M7
P840 1:L4 8-M7
PL100 1:P3 1-F0
PL205 1:C5 2-J8
PL210 1:C3 2-H4
PL215 1:C4 2-K3
PL220 1:C4 2-H2
Q210 1:C6 2-J8
Q220 1:B3 2-L7
Q230 1:A4 2-M8
Q240 1:B7 2-Q7
Q250 1:B7 2-R5
Q260 1:C4 2-F3
Q270 1:D2 2-D1
Q301 1:E8 3-B7
Q302 1:F8 3-F7
Q303 1:F8 3-G8
Q304 1:E5 3-G4
Q305 2:E6 3-L4
Q306 1:E4 3-G1
Q307 1:E3 3-H2
Q308 1:E3 3-K2
Q309 1:E3 3-J0
Q310 1:E9 3-Q2
Q311 1:E9 3-Q3
Q505 1:K5 5-J8
Q510 1:J5 5-D1
Q520 1:J5 5-H2
Q530 1:J5 5-H0
Q540 1:K5 5-L2
Q550 1:K5 5-L0
Q610 1:L6 6-E8
Q620 1:N6 6-P8
Q630 1:M6 6-P5
Q660 1:L5 6-N1
Q670 1:L6 6-Q2
Q710 1:J3 7-K8
Q720 1:J3 7-K8
Q730 1:H3 7-N8
Q740 1:H3 7-N8
Q750 1:G4 7-F3
Q760 1:H3 7-H3
Q770 1:H3 7-H1
Q775 1:H3 7-K3
Q780 1:H3 7-K3
Q785 1:H3 7-K2
Q790 1:H4 7-L3
Q795 1:G3 7-P0
Q810 1:M2 8-E7
Q820 1:L2 8-D5
Q830 1:L2 8-D5
Q840 1:L2 8-F5
Q850 1:M2 8-G5
Q860 1:L4 8-B3
%R150 1:P2 1-R4
R160 1:P2 1-R3
R201 1:B2 2-E9
R202 1:C1 2-F9
R204 1:C7 2-B6
R205 1:C7 2-D6
R206 1:B7 2-G8
R207 1:B6 2-G8
R208 1:B6 2-G8
R209 1:C6 2-H8
R210 1:B6 2-H7
R212 1:D4 2-F6
R213 1:C4 2-G6
R214 1:D4 2-G6
R215 1:C4 2-H6
R216 1:C3 2-K7
R217 1:A4 2-M8
R218 1:A4 2-N7
R219 1:B4 2-N8
R221 1:B7 2-R7
R223 1:B4 2-K6
R224 1:C4 2-K5
R225 1:B4 2-L5
R226 1:B4 2-L4
R227 1:B4 2-M4
R229 1:B4 2-M7
R230 1:B4 2-M6
R231 1:B4 2-M6
R232 1:B4 2-M5
R233 1:B4 2-M6
R235 1:B4 2-P6
R237 1:B7 2-Q7
R238 1:B7 2-R7
R239 1:B8 2-R6
R241 1:B8 2-Q6
R242 1:B7 2-Q5
R244 1:C6 2-A5
R245 1:D4 2-D4
R247 1:D3 2-E4
R248 1:C3 2-E3
R249 1:D4 2-F3
R251 1:C4 2-G4
R253 1:C6 2-J2
R254 1:C6 2-K3
R255 1:C7 2-K2
R256 1:D8 2-M3
R257 1:D8 2-N5
R258 1:D8 2-N4
R259 1:D5 2-P4
R260 1:D8 2-N4
R262 1:D8 2-N3
R263 1:C8 2-P3
&R264 1:C8 2-P3
&R265 1:C8 2-P3
&R266 1:C8 2-P3
R267 1:C8 2-R2
R268 1:D2 2-C0
R269 1:C2 2-C1
R270 1:C2 2-D1
R271 1:C3 2-E1
R272 1:C4 2-F2
R273 1:B5 2-G2
R274 1:C4 2-G1
R275 1:C4 2-H0
R277 1:B5 2-J1
R278 1:B5 2-J0
R279 1:B5 2-K0
R280 1:B5 2-K0
R282 1:D7 2-K1
R283 1:D7 2-L1
R284 1:D7 2-L0
R285 1:C8 2-M0
R286 1:C7 2-M0
R287 1:D9 2-M0
R288 1:C6 2-M2
R289 1:D9 2-M0
R290 1:C8 2-N2
R291 1:C8 2-N1
R292 1:D8 2-Q2
R293 1:D9 2-Q2
R294 1:D9 2-Q1
R295 1:D8 2-R1
R296 1:D6 2-P0
R297 1:D7 2-P1
%R298 1:D7 2-Q0
R299 1:C7 2-R0
R300 1:F8 3-J8
R301 1:E8 3-B8
R302 1:E8 3-A7
R303 1:E8 3-B7
R304 1:F8 3-B8
R305 1:F8 3-C7
R306 1:F8 3-D5
R307 1:F8 3-D5
R308 1:F8 3-E7
R309 1:F8 3-D5
R310 1:F8 3-E6
R311 1:F8 3-F6
R312 1:F8 3-F8
R313 1:F8 3-F8
R314 1:F8 3-G6
R323 1:F5 3-C3
R324 1:F4 3-C2
R325 1:F4 3-D2
R326 1:E4 3-F3
R327 1:E4 3-G3
R328 1:F5 3-G4
R329 1:F7 3-H5
#R330 1:E5 3-H3
#R331 1:E5 3-H4
#R332 1:E6 3-J3
R333 1:E6 3-K3
R334 1:E7 3-L4
R335 1:F7 3-M5
R340 1:E4 3-G1
R341 1:E4 3-H1
R342 1:E3 3-J2
R343 1:E3 3-K1
R344 1:E3 3-K2
R345 1:E4 3-K2
R346 1:E3 3-H0
R347 1:E3 3-J1
R348 1:D3 3-J0
R349 1:E3 3-J0
R355 1:E8 3-P2
R356 1:E9 3-P3
R357 1:E8 3-P2
R358 1:E8 3-Q2
R359 1:E8 3-R3
R501 1:K5 5-H8
R502 1:K5 5-J8
R503 1:K5 5-J8
R504 1:K6 5-K9
R505 1:K6 5-L8
R510 1:K6 5-L7
R514 1:K6 5-M5
R515 1:H6 5-J5
R517 1:G5 5-E2
R518 1:G5 5-F2
R519 1:G5 5-F2
R520 1:J5 5-C1
R525 1:J5 5-D1
R530 1:J5 5-D0
R535 1:J5 5-E1
R540 1:K5 5-H2
R545 1:K5 5-J1
IPN 220-01398-02
M850-00
T857 PCB Information
C6.3.13
Copyright TEL 31/09/98
Device PCB Circuit Device PCB Circuit Device PCB CircuitDevice PCB Circuit
R550 1:K5 5-K2
R555 1:K5 5-K1
R560 1:K5 5-M0
R609 1:L6 6-B8
R613 1:L6 6-C8
R615 1:M5 6-F9
R617 1:M5 6-J8
R619 1:M6 6-L8
R621 1:M6 6-L8
R625 1:N6 6-L7
R629 1:M5 6-P6
R633 1:M5 6-Q8
R637 1:N5 6-K6
R641 1:N5 6-L4
R645 1:N5 6-L5
R649 1:M5 6-M5
R653 1:M5 6-Q4
R657 1:M5 6-D1
R661 1:M5 6-E3
R665 1:M5 6-E2
R669 1:M5 6-E2
R673 1:M5 6-E0
R677 1:M4 6-F4
R681 1:L5 6-L2
R685 1:L5 6-N2
R689 1:L6 6-Q3
R693 1:L6 6-Q1
R696 1:M6 6-Q1
R701 1:K4 7-A9
R702 1:K4 7-C9
R703 1:J3 7-C8
=R705 1:K3 7-A7
R706 1:J3 7-B6
R708 1:H3 7-C7
R710 1:H2 7-E7
R711 1:J2 7-B6
R712 1:J3 7-D9
R713 1:J4 7-F8
%R715 1:K4 7-H6
R717 1:J4 7-H7
R718 1:J4 7-H7
R719 1:J4 7-J6
R720 1:J3 7-K7
R721 1:J3 7-K9
R722 1:J3 7-K8
R723 1:H3 7-M7
R725 1:J4 7-N7
%R726 1:J3 7-N6
R727 1:H3 7-N9
R728 1:H3 7-N8
R742 1:H2 7-B4
R743 1:H2 7-C5
R744 1:G2 7-D4
R746 1:H3 7-E4
R747 1:H3 7-E5
R748 1:J2 7-A1
R749 1:J2 7-B1
R750 1:H4 7-Q7
R752 1:G4 7-F5
R753 1:G4 7-F3
R754 1:G3 7-F3
R756 1:G3 7-G5
R757 1:G4 7-G4
R758 1:H3 7-H4
R759 1:H3 7-H4
R760 1:H3 7-K4
R762 1:H3 7-K4
R763 1:H4 7-L4
R765 1:H3 7-H2
R766 1:G3 7-J3
R767 1:H3 7-K2
R769 1:H3 7-K3
R771 1:H4 7-L3
R772 1:G4 7-M2
R774 1:H4 7-M3
R775 1:H4 7-N2
R777 1:H4 7-R2
R780 1:G2 7-P1
R782 1:G3 7-P1
R784 1:G3 7-P1
R785 1:G3 7-Q1
R786 1:G2 7-R1
R787 1:G2 7-R2
R790 1:G3 7-P0
R791 1:G3 7-Q0
R801 1:M2 8-D7
R802 1:M2 8-D7
R808 1:L2 8-B4
R809 1:L2 8-D5
R810 1:L2 8-D6
R811 1:L2 8-E6
R812 1:L2 8-D5
R813 1:L2 8-D4
R815 1:L2 8-F4
R816 1:L2 8-F4
R818 1:M2 8-F5
R819 1:M2 8-F5
R821 1:M4 8-B3
R822 1:M4 8-E3
R824 1:L4 8-L8
R825 1:L4 8-L8
R826 1:L4 8-L8
R827 1:L4 8-L7
R828 1:L4 8-L7
R829 1:L4 8-P9
R830 1:L3 8-P9
R831 1:L3 8-P9
R832 1:L3 8-P8
R833 1:L3 8-P8
R835 1:L3 8-P8
R836 1:L3 8-P8
R837 1:L3 8-P7
R840 1:L3 8-P7
R841 1:L3 8-P7
R842 1:L3 8-P6
R843 1:L3 8-P6
R845 1:M4 8-Q5
R846 1:K2 8-Q4
R847 1:K2 8-Q4
R848 1:L2 8-J4
R849 1:M4 8-Q3
R850 1:K2 8-Q4
R853 1:M4 8-N3
R854 1:M4 8-N3
R855 1:M2 8-B0
R859 1:N2 8-C1
R861 1:N2 8-D1
R863 1:N3 8-E1
R865 1:N4 8-E0
R867 1:N3 8-E1
R871 1:N3 8-G2
R872 1:M4 8-H1
R873 1:N3 8-G1
R874 1:N3 8-H0
R875 1:N3 8-G0
R876 1:N3 8-H0
R877 1:M2 8-K2
R879 1:N2 8-L3
RV210 1:B7 2-F9
RV220 1:A4 2-M6
RV805 1:N4 8-F1
SK200 1:D5 2-F0
SK200 1:D5 2-F0
SK200 1:D5 2-F0
SK200 1:D5 2-F0
SK200 1:D5 2-F0
SK200 1:D5 2-F0
SK200 1:D5 2-F0
SK200 1:D5 2-F0
SK205 1:B5 2-A5
SK310 1:E8 3-N4
SK420 1:M8 1-M8
SK501 1:G6 5-D6
SK502 1:G6 5-D5
SK503 1:G6 5-D4
SK504 1:G5 5-D3
SK505 1:G5 5-D2
SK513 1:H5 5-H3
SK522 1:H6 5-K5
SK531 1:K6 5-N6
SK532 1:K5 5-N5
SK533 1:K5 5-N4
SK534 1:K5 5-N3
SK535 1:K5 5-N2
=SK710 1:K3 7-A7
SK805 1:K3 8-Q9
SK805 1:K3 8-Q7
SK805 1:K3 8-Q5
SK805 1:K3 8-Q7
SK805 1:K3 8-Q8
SK805 1:K3 8-Q7
SK805 1:K3 8-Q8
SK805 1:K3 8-Q6
SK805 1:K3 8-Q8
SK805 1:K3 8-Q6
SK805 1:K3 8-Q9
SK805 1:K3 8-Q6
SK805 1:K3 8-Q9
SK805 1:K3 8-Q7
SK805 1:K3 8-Q8
SK805 1:K3 8-Q6
SK810 1:M3 8-H5
SL201 2:D1 2-B9
SL202 2:D1 2-B8
SL203 2:D2 2-B1
SL204 2:D2 2-B1
SL501 2:J5 5-F0
SL810 1:M2 8-C7
SW230 1:B8 2-B4
T210 1:B2 2-C8
T610 1:L5 6-N2
M850-00
DI
Copyright TEL 31/09/98
Part D T858 & T859 Power Amplifiers
This part of the manual is divided into five 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 Adjustment
4 Fault Finding
5 PCB Information
M850-00
T858/859 General Information
D1.1
Copyright TEL 31/09/98
1 T858/859 General Information
This section provides a brief description of the T858 & T859 power amplifiers, along
with detailed specifications and a list of types available.
The following topics are covered in this section.
Section Title Page
1.1 Introduction 1.7
1.2
1.2.1
1.2.2
1.2.3
1.2.3.1
1.2.3.2
1.2.3.3
Specifications
Introduction
General
Test Standards
European Telecommunication Standard
DTI CEPT Recommendation T/R-24-01
Telecommunications Industry Association
1.8
1.8
1.8
1.9
1.9
1.10
1.10
1.3 Product Codes 1.11
1.4 Standard Product Range 1.12
Figure Title Page
1.1
1.2
1.3
T858 Main Circuit Block Identification
T859 Main Circuit Block Identification
T858/859 Front Panel Controls
1.4
1.6
1.6
M850-00
T858/859 General Information
D1.7
Copyright TEL 31/09/98
1.1 Introduction
The T858 and T859 are FM base station power amplifiers designed for single or mul-
tichannel operation in the 400 to 520MHz frequency range. The output power capabili-
ties are as follows:
T858 - 10 to 60W
T859 - 20 to 110W.
The PA comprises a broad band, three stage drive amplifier whose output is split to
drive two separate output stages. The outputs from these final stages are then recom-
bined and filtered before being fed to the output socket. This type of balanced output
stage offers two advantages over single ended types:
• improved intermodulation performance in the presence of high signal levels
from adjacent transmitters;
• enhanced reliability: if one of the two output stages fails, the transmitter can
still produce one quarter of its rated power.
VSWR and thermal protection are incorporated into the basic design, while monitoring
and alarm signals are available for both forward and reverse power. The output power
is adjustable from the front panel.
The main PCB is mounted directly on a die-cast chassis/heatsink. Extensive use is
made of the latest surface mount technology.
Forced air cooling for the heatsink is provided on the T859 by a fan, which is activated
whenever the transmitter is keyed. Thermal sensors will also activate the fan automati-
cally if the internal temperature reaches an unacceptable level.
The T858 has a width of 60mm and occupies a single space in a Tait rack frame, which
has the ability to accommodate up to seven standard modules. The T859 has a width of
120mm and occupies a double space.
D1.8
T858/859 General Information
M850-00
31/09/98 Copyright TEL
1.2 Specifications
1.2.1 Introduction
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 (13.8V DC).
Where applicable, the test methods used to obtain the following performance figures are
those described in the ETS specification. Refer to Section 1.2.3 for details of test stand-
ards.
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
Power Output:
T858 - Rated Power .. 50W
- Range Of Adjustment .. 10 to 60W (typical)
T859 - Rated Power .. 100W
- Range Of Adjustment .. 20 to 105W (typical)
Input Power: .. 1W ±300mW
Duty Cycle Rating:
T858 .. 50W continuous to +60°C
.. 60W continuous to +40°C
T859 .. 100W continuous to +60°C
Intermodulation .. -70dBc or -40dBi1 with 25dB isolation
(PA with output isolator) & interfering signal of -30dBc
Mismatch Capability:
Ruggedness .. refer to your nearest Tait Dealer or
Customer Service Organisation
Stability .. 5:1 VSWR (all phase angles)
Supply Voltage:
Operating Voltage .. 10.8 to 16V DC
Standard Test Voltage .. 13.8V DC
Polarity .. negative earth only
Polarity Protection .. diode
1. dBi denotes the level of intermodulation product relative to the interfering signal.
M850-00
T858/859 General Information
D1.9
Copyright TEL 31/09/98
Maximum Supply Current (T858 @ 50W, T859 @ 100W):
Standby .. 50mA
Transmit - T858 .. 11A
- T859 .. 22A
Spurious Emissions:
Conducted - Transmit .. -36dBm to 1GHz
-30dBm to 4GHz
- Standby .. -57dBm to 1GHz
-47dBm to 4GHz
Radiated - Transmit .. -36dBm to 1GHz
-30dBm to 4GHz
- Standby .. -57dBm to 1GHz
-47dBm to 4GHz
Operating Temperature Range .. -30°C to +60°C
Dimensions:
Height .. 183mm
Width - T858 .. 60mm
- T859 .. 120mm
Length .. 340mm
Weight:
T858 .. 3.1kg
T859 .. 3.5kg
1.2.3 Test Standards
Where applicable, this equipment is tested in accordance with the following standards.
1.2.3.1 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 pri-
marily 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.
D1.10
T858/859 General Information
M850-00
31/09/98 Copyright TEL
ETS 300 279 February 1996
Radio equipment and systems; electromagnetic compatibility (EMC) standard for pri-
vate land mobile radio (PMR) and ancillary equipment (speech and/or non-speech).
1.2.3.2 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.
1.2.3.3 Telecommunications Industry Association
ANSI/TIA/EIA-603-1992
Land mobile FM or PM communications equipment measurement and performance
standards.
M850-00
T858/859 General Information
D1.11
Copyright TEL 31/09/98
1.3 Product Codes
The three groups of digits in the T850 Series II product code provide information about
the model, type and options fitted, according to the conventions described below.
The following explanation of T850 Series II product codes is not intended to suggest that
any combination of features is necessarily available in any one product. Consult your
nearest Tait Dealer or Customer Service Organisation for more information regarding
the availability of specific models, types and options.
Model
The Model group indicates the basic function of the product, as follows:
T85X-XX-XXXX T855 receiver
T856 25W transmitter
T857 exciter
T858 50W power amplifier
T859 100W power amplifier
Type
The Type group uses two digits to indicate the basic RF configuration of the product.
The first digit in the Type group designates the frequency range:
T85X-XX-XXXX ’1’ for 400-440MHz
’2’ for 440-480MHz
’3’ for 480-520MHz
The second digit in the Type group indicates the channel spacing:
T85X-XX-XXXX ’0’ for wide bandwidth (25kHz)
’3’ for mid bandwidth (20kHz)
’5’ for narrow bandwidth (12.5kHz)
Options
T85X-XX-XXXX The Options group uses four digits and/or letters to indicate
any options that may be fitted to the product. This includes
standard options and special options for specific customers.
’0000’ indicates a standard Tait product with no options fitted.
The large number of options precludes listing them here.
D1.12
T858/859 General Information
M850-00
31/09/98 Copyright TEL
1.4 Standard Product Range
The following table lists the range of standard T858 and T859 types (i.e. no options fitted
and no cyclic keying) available at the time this manual was published. Consult your
nearest Tait Dealer or Customer Service Organisation for more information.
You can identify the PA type by checking the product code printed on a label on the rear
of the heatsink (Figure 1.1 in Part A shows typical labels).
Output Power (W) 50 100
Frequency Range (MHz) 400-440 440-480 480-520 400-440 440-480 480-520
PA Type: T858- 10-0500 20-0500 30-0500
PA Type: T859- 10-0500 20-0500 30-0500
M850-00
T858/859 Circuit Operation
D2.1
Copyright TEL 31/09/98
2 T858/859 Circuit Operation
This section provides a basic description of the circuit operation of the T858 and T859
power amplifiers.
Refer to Section 5 where the parts lists, grid reference index and diagrams will provide
detailed information on identifying and locating components. Refer also to Figure 3.3
and Figure 3.4 which show the location of the main adjustment controls.
The following topics are covered in this section.
Section Title Page
2.1 Introduction 2.3
2.2 RF Circuitry 2.4
2.3
2.3.1
2.3.2
2.3.3
2.3.4
2.3.5
2.3.6
Control Circuitry
Power Control
T859 Driver Power Level
Thermal Protection
Forward And Reverse Power Alarms
Forward And Reverse Power Metering
T859 Fan Control Circuitry
2.5
2.6
2.6
2.6
2.7
2.7
2.7
Figure Title Page
2.1
2.2
2.3
2.4
T858/859 High Level Block Diagram
T858/859 RF Circuitry Block Diagram
T858/859 Control Circuitry Block Diagram
T859 Fan Control Logic Diagram
2.3
2.4
2.5
2.7
M850-00
T858/859 Circuit Operation
D2.3
Copyright TEL 31/09/98
2.1 Introduction
Figure 2.1 T858/859 High Level Block Diagram
The T858 and T859 comprise a five-stage RF power amplifier, the final two stages of
which are combined, and extensive control circuitry.
Figure 2.1 shows the configuration of each of the main circuit blocks on a functional
level, while the fold-outs Figure 1.1 and Figure 1.2 show their location on the PCB.
L19 L39
LPF
HPF
50
Load
Ω
50
Load
Ω
Q1 Q3
(T858 &
T859 Only)
Q4 Q7
Pad
RF In
Q6
0.7-1W
0.7-1W
0.7-1.8W
2-3dB
2dB
4dB
2W
5W
5W
8-10W
15-20W
20-30W
40-50W
20-35W
35-40W
60-70W
35-40W
60-70W
105-120W
60-80W
Forward
Power
RF Out
Reverse
Power
T858
T859
T878
D2.4
T858/859 Circuit Operation
M850-00
31/09/98 Copyright TEL
2.2 RF Circuitry
(Refer to the RF section circuit diagram in Section 5.)
Figure 2.2 T858/859 RF Circuitry Block Diagram
The driver stage of the T858/859 consists of a three-stage transistor amplifier (Q1, Q3 &
Q4) which delivers 30W in the T858 and 50W in the T859. This signal is split via a 3dB
coupler (L19) and used to drive the two final amplifiers (Q6 & Q7). The outputs from
the finals are passed to the antenna socket via the harmonic filter.
The diplexer presents the final amplifiers with a good load at harmonic frequencies,
which helps to achieve the expected harmonic attenuation in the output filter.
The directional coupler senses forward and reflected power, which is rectified (D1 & D2)
and passed to the control circuitry for metering, alarm and power control purposes.
Power control is via a series pass transistor (Q16), which controls the supply voltage on
the collector of the driver transistor (Q1).
L19 L39
Q1 Q3 Q4 Q7
Q6
CV34
CV57
CV51
CV35
CV32CV8CV1
(T859
Only)
(T858 & T859
Only)
RF In
SK1
Power
Control
50Ω
Load
50Ω
Load
LPF
HPF
Load
Reverse
Power
RF Out
SK2
Forward
Power
M850-00
T858/859 Circuit Operation
D2.5
Copyright TEL 31/09/98
2.3 Control Circuitry
(Refer to the control section circuit diagram in Section 5.)
Figure 2.3 T858/859 Control Circuitry Block Diagram
+
Comparator
Q13 Q12
FET
Switch
+
+
+
Comparator
FET
Switch
Q11
IC1b
RV52
High Reverse Power LED
Low Forward Power LED
Reverse
Power
Meter
Reverse
Power
Alarm
Forward
Power
Meter
Forward
Power
Alarm
+7V
+7V
Tx
Key
IC1a
RV48
RV43
+
+
Q16Q15
Q10
+13.8V
Filtered
Integrator
IC1c
Control
Supply
-t° R72
NTC
RV63
RV69
Power
Control
Shutdown
Power Level
Comparator
IC1d RV74
R58
RV57
R44
Reverse
Power
Sense
Buffer
IC3a
Buffer
IC3b
Forward
Power
Sense
Ref.
(T859 Only)
7V
Supply
13.8V
Filtered
L11
13.8V
RV69
Supply LED
IC2
IC4 IC1
Voltage
Regulator
Drive Level Clamp
(T859 Only)
Forward Power
Alarm
Reverse Power
Alarm
(RF Section -
High Temp. Sense)
Shutdown
Temperature
(T858/T878 Only)
D2.6
T858/859 Circuit Operation
M850-00
31/09/98 Copyright TEL
2.3.1 Power Control
The DC voltages from the directional coupler representing forward and reflected power
are buffered by the two voltage followers IC3 pins 1, 2 & 3 and pins 5, 6 & 7. Their out-
puts are summed at an integrator (IC1 pins 8, 9 & 10), which drives the series pass con-
trol element (Q16).
Forward and reflected power are summed so that, under high output VSWR, the power
control turns the PA down. This is because the control loop adjusts for the same DC
voltage from the directional coupler that would have been present if there were no
reflected power.
2.3.2 T859 Driver Power Level
A ceiling is placed on the output power available from driver stages Q1, Q3 and Q4 to
ensure final stages Q6 and Q7 are not overdriven. This is achieved by RV69 and IC4
controlling the reference voltage of power control error amplifier IC1c, which in turn
limits the maximum supply voltage that can be applied to driver Q4 by power control
transistor Q16.
Note:
T859 PAs with serial numbers prior to 217262 do not have this feature.
Caution:
The driver power level clamp (RV69) is factory set to give a maximum
power output of 110W in the T859. The unit may be damaged if this
level is increased.
2.3.3 Thermal Protection
At excessively high temperatures, the output power will automatically reduce to a pre-
set level, thus preventing the PA from overheating.
A thermistor controlled voltage divider (R68, R72) applies a voltage to a comparator
with hysteresis (IC1 pins 12, 13 & 14).
Note:
In all T858 PAs and T859 PAs with serial numbers prior to 217262, the
threshold of the comparator is independently set by RV69 which sets the
shutdown temperature. On later model T859 PAs this threshold is fixed.
The output current from the comparator is summed into the power control network via
RV74 so that the power level to which the PA must turn down may be set.
M850-00
T858/859 Circuit Operation
D2.7
Copyright TEL 31/09/98
2.3.4 Forward And Reverse Power Alarms
If forward power drops below, or reverse power rises above, presettable limits, alarms
may be triggered.
The alarm outputs are open drain configuration and are low under normal conditions
(i.e. forward and reverse power levels are normal).
IC1 pins 1, 2 & 3 and pins 5, 6 & 7 form comparators with thresholds adjusted via RV48
(forward power) and RV52 (reverse power) respectively. The inputs are from the for-
ward and reverse power signals generated by the directional coupler, buffered by IC3
pins 1, 2 & 3 and pins 5, 6 & 7. Thus, the power levels at which the forward and reverse
power alarms are triggered are defined by RV48 and RV52 respectively.
2.3.5 Forward And Reverse Power Metering
Forward and reverse power signals from the two IC3 buffers are available for metering
purposes. The output currents are adjustable via RV43 (forward power) and RV57
(reverse power).
2.3.6 T859 Fan Control Circuitry
Figure 2.4 T859 Fan Control Logic Diagram
Comparator IC3 pins 8, 9 & 10 are set to trigger at heatsink temperatures greater than
+70°C, and pins 12, 13 & 14 at temperatures greater than -10°C.
A logic AND function is applied to the comparator outputs by Q20 and Q21, thereby
turning on the fan unconditionally (via Q17 and Q18) if the heatsink temperature
exceeds +70°C.
A logic OR function is applied to the comparator IC3 pins 8, 9 & 10 and Tx-Key signals,
thereby turning on the fan when the transmitter is keyed and the temperature is
between -10°C and +70°C.
Q17 Q18 Fan
Ref +
High Temp.
Sense
Comparator
IC3C
R72
Ref +
Low Temp.
Sense
Comparator
IC3D
R116
NTC
NTC
Tx Key
Invert
Q19 OR
Q20,
R106, R107
NAND
Q20, Q21,
R119, R120 Fan Driver
13.8V
Filtered
D2.8
T858/859 Circuit Operation
M850-00
31/09/98 Copyright TEL
If the temperature drops below -10°C, Q21 is turned off, preventing either Q19 or Q20
from activating the fan.
Fan operation may be summarised as follows:
T < -10°C - fan unconditionally turned off
-10°C < T < +70°C - fan turned on only when transmitter keyed
T > +70°C - fan unconditionally turned on.
M850-00
T858/859 Initial Adjustment
D3.1
Copyright TEL 31/09/98
3 T858/859 Initial Adjustment
Caution:
This equipment contains CMOS devices which are susceptible to dam-
age from static charges. Refer to Section 1.2 in Part A for more infor-
mation on anti-static procedures when handling these devices.
The following section describes the full adjustment procedure to be carried out before
operating the T858/859.
Refer to Section 5 where the parts lists, grid reference index and diagrams will provide
detailed information on identifying and locating components. Refer also to Figure 3.3
and Figure 3.4 which show the location of the main adjustment controls.
The following topics are covered in this section.
Section Title Page
3.1 Test Equipment Required 3.3
3.2 Preliminary Checks 3.3
3.3
3.3.1
3.3.2
3.3.3
RF Alignment
Standard Tuning Procedure
Tuning Control Settings
Tuning For Best Efficiency
3.4
3.4
3.5
3.5
3.4 Setting The Output Power 3.6
3.5 T858 High Temperature Shutdown Power Level 3.7
3.6 T859 High Temperature Shutdown Power Level 3.7
3.7 Remote Forward Power Meter Calibration 3.8
3.8 Remote Reverse Power Meter Calibration 3.8
3.9
3.9.1
3.9.2
Setting Alarm Levels
Forward Power
Reverse Power
3.8
3.8
3.8
Figure Title Page
3.1
3.2
3.3
3.4
T858/859 Test Equipment Set-up
T858/859 Tuning Control Settings
T858 Main Adjustment Controls
T859 Main Adjustment Controls
3.3
3.5
3.11
3.13
M850-00
T858/859 Initial Adjustment
D3.3
Copyright TEL 31/09/98
3.1 Test Equipment Required
• DC power supply capable of delivering the following at 13.8V:
T858 >16A (e.g. Tait T807)
T859 >25A (e.g. Tait T808).
• Multimeter or DMM (e.g. Fluke 77).
• RF power meter (e.g. HP 435 series or Bird Wattmeter).
• 250W 30dB 50 ohm pad (e.g. Weinschel 40-20-34), or other suitable load.
• 300W 3dB 50 ohm pad (e.g. Weinschel 40-3-34).
• 'BNC' to 'N' type adaptors (e.g. Amphenol, Greenpar).
• Appropriate trimming tools.
Figure 3.1 T858/859 Test Equipment Set-up
3.2 Preliminary Checks
Check for short circuits between the positive rail and earth.
Set up the test equipment as in Figure 3.1.
Connect the T858/859 to a 13.8V DC supply.
Check that the quiescent current is approximately 45mA.
To key the transmitter, earth the key line (D-range 1 pin 13) on the exciter.
Check that the power supply is still at 13.8V under load.
Check that the regulated power control supply is approximately 7V (pin 1 of IC2).
Note:
The output power and alarm levels should be set with the cover shield on.
If the cover is removed for other adjustment procedures, make a final check
of the output power and alarm levels with the cover shield on.
Exciter PA Load
Tx Key
RF Power
Meter
Tx Enable
D3.4
T858/859 Initial Adjustment
M850-00
31/09/98 Copyright TEL
3.3 RF Alignment
3.3.1 Standard Tuning Procedure
T859 Only: For sets with serial numbers following 217262, set RV69 (driver
power level) fully clockwise.
Preset the tuning controls as shown in Figure 3.2.
Set RV63 (front panel power control) fully clockwise.
Key on the drive source.
T859 Only: Adjust CV1 for maximum output.
Adjust CV8 for maximum output.
Adjust CV32 for maximum output.
Adjust CV51 and CV57 for maximum output.
Adjust CV34 and CV35 for maximum output.
Recheck all settings. The power output should exceed:
T858 60W
T859 110W.
T859 Only: For sets with serial numbers following 217262, adjust RV69
(driver power level) until the output power drops to 110W.
Adjust RV63 to reduce the power output to the required level (e.g. 50W for T858,
100W for T859).
M850-00
T858/859 Initial Adjustment
D3.5
Copyright TEL 31/09/98
3.3.2 Tuning Control Settings
After alignment the settings of the tuning controls should approximate those shown in
Figure 3.2
Figure 3.2 T858/859 Tuning Control Settings
3.3.3 Tuning For Best Efficiency
Retune CV32, CV51 and CV57 towards maximum capacitance to obtain minimum
supply current, but do not exceed a maximum drop of 0.5A per control.
Check that the supply current is:
T858 <12A for 50W output power
T859 <22A for 100W output power.
Note:
These control settings are normally very close to minimum supply current.
If the current is reduced too far, maximum power output will drop and 2f
rejection may degrade.
CV32, CV51, CV57
CV34, CV35
CV8, CV1
450MHz 485MHz 520MHz
D3.6
T858/859 Initial Adjustment
M850-00
31/09/98 Copyright TEL
3.4 Setting The Output Power
Caution:
If the high temperature shutdown power level has not yet been set or is
unknown, check that the unit does not overheat while setting the out-
put power.
Note 1:
Cables and connectors can easily cause a power loss of several watts if either
too long or poorly terminated. Always use the shortest possible leads (or
connectors instead of leads) between the T858/859 and power meter set-up.
Note 2:
You will need appropriate extension leads if you wish to carry out the
adjustment procedures with the T858/859 withdrawn from the rack in the
latched position. Alternatively, disconnect and withdraw the T858/859 and
reconnect it behind the rack.
Note 3:
The actual power used may be limited by regulatory requirements.
Connect the exciter output to the PA input via a thru-line wattmeter with a 5W
full scale reading. Special BNC/N leads will be required.
Connect an RF power meter to the PA output.
Set RV63 (front panel power control) fully clockwise.
Key on the drive source.
Check that the exciter power is 700mW to 1.3W.
Check that the power output exceeds:
T858 60W
T859 110W.
Adjust RV63 to reduce the power output to the required level (e.g. 50W for T858,
100W for T859).
M850-00
T858/859 Initial Adjustment
D3.7
Copyright TEL 31/09/98
3.5 T858 High Temperature Shutdown Power Level
Note 1:
The temperature shutdown circuit is factory set to approximately 130°C and
20W. RV69 and RV74 should not be readjusted if normal operation is
required.
Note 2:
This Section applies only to T858 PAs, and T859 PAs with serial numbers
prior to 217262.
Power up the T858 and adjust RV63 (front panel power control) for the normal
operating power level.
Turn RV69 (shutdown temperature) fully anticlockwise to avoid RF power cycling
between the levels set by RV63 and RV74.
Apply heat to the NTC (R72) with the tip of a soldering iron.
Adjust RV74 (shutdown power level) to the desired level. For continuous opera-
tion during fault conditions, set the shutdown power to 20W.
Adjust RV69 so that the voltage at IC1 pin 13 is 380mV.
3.6 T859 High Temperature Shutdown Power Level
Note 1:
The temperature shutdown circuit is factory set to approximately 130°C and
40W. RV74 should not be readjusted if normal operation is required. Tem-
perature adjustment is not provided on the T859.
Note 2:
This Section applies only to T859 PAs with serial numbers from 217263
onwards. For T859s with serial numbers prior to this refer to Section 3.5
above.
Power up the T859 and adjust RV69 (driver power level) and RV63 (front panel
power control) for the normal operating power level.
Apply heat to the NTC (R72) with the tip of a soldering iron.
Adjust RV74 (shutdown power level) to the desired level. For continuous opera-
tion during fault conditions, set the shutdown power to 40W
D3.8
T858/859 Initial Adjustment
M850-00
31/09/98 Copyright TEL
3.7 Remote Forward Power Meter Calibration
If a remote meter is connected, adjust RV43 (forward power meter calibration con-
trol) for the remote reading to agree with the RF power meter reading.
3.8 Remote Reverse Power Meter Calibration
If a remote meter is connected, connect a 50 ohm 3dB pad (with the output open
circuit) to the PA output.
Apply RF drive and Tx-Key.
Adjust RV57 (reverse power meter calibration control) for a quarter of the forward
power reading.
3.9 Setting Alarm Levels
Note:
If forward and reverse power metering is being used, set up their calibration
(Section 3.7 and Section 3.8) before setting the alarm levels.
3.9.1 Forward Power
Power up the T858/859 and adjust RV63 (front panel power control) so that the
output power is at the alarm level required (e.g. 40W if the PA normally operates
at 50W).
Adjust RV48 (forward power alarm set) so that the forward power alarm LED
lights.
Check the alarm level setting by adjusting the power up and down and observing
the alarm LED. A few watts hysteresis can be expected.
Readjust RV63 for the normal operating level.
Note:
Remote indication is available at D-range pin 3.
3.9.2 Reverse Power
Power up the T858/859 and adjust RV63 (front panel power control) for the nor-
mal operating power level.
Place a known mismatch of the required value (e.g. 3:1 VSWR) and adjust RV52
(reverse power alarm set) so that the reverse power alarm LED lights.
M850-00
T858/859 Fault Finding
D4.1
Copyright TEL 31/09/98
4 T858/859 Fault Finding
Caution:
This equipment contains CMOS devices which are susceptible to dam-
age from static charges. Refer to Section 1.2 in Part A for more infor-
mation 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 Customer Support, Radio Systems Division, Tait Elec-
tronics Ltd, Christchurch, New Zealand (full contact details are on page 2).
Refer to Section 5 where the parts lists, grid reference index and diagrams will provide
detailed information on identifying and locating components.
The following topics are covered in this section.
Section Title Page
4.1 Visual Checks 4.3
4.2 Component Checks 4.3
4.3 DC Checks 4.3
4.4
4.4.1
4.4.2
RF Checks
General
PA Faults
4.4
4.4
4.4
4.5 Voltage Chart 4.7
4.6
4.6.1
4.6.2
4.6.3
4.6.4
4.6.5
Fault Finding Charts
T858 PA
T858 Power Control
T859 PA
T859 Power Control
T859 Fan Control Circuitry
4.8
4.8
4.9
4.10
4.11
4.12
4.7 Replacing PF Power Transistors 4.13
4.8 Removing The PCB From The Heatsink 4.15
Figure Title Page
4.1
4.2
T858/859 Test Break Point Location
Typical Transistor/Capacitor Spacing (Not To Scale)
4.5
4.13
M850-00
T858/859 Fault Finding
D4.3
Copyright TEL 31/09/98
4.1 Visual Checks
Remove the side cover from the T858/859 and inspect the PCB for damaged or
broken components, paying particular attention to the surface mounted devices
(SMDs). Also check for defective solder joints.
Refer to Section 4.7, Section 4.8 and Section 3 of Part A for more details on repair
and replacement of components.
4.2 Component Checks
If you suspect a transistor is faulty, you can assess its performance by measuring the for-
ward and reverse resistance of the junctions. Unless the device is completely desol-
dered, 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 20k ohm/V or bet-
ter multimeter, using only the medium or low resistance ranges).
The collector current drawn by multi-junction transistors is a further guide to their per-
formance.
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.
4.3 DC Checks
Note:
No RF power is to be applied during these checks.
Check that +13.8V is present on the collectors of Q3, Q4, Q5, Q6 and Q7. Make
this measurement when the transmitter is not keyed.
Check that approximately 12-13V is present on the collector of Q1 (in the T859 the
level is dependent on RV69 being set to maximum).
T858 Only Check that +13.8V is present at pin 4 of IC1 and pin 8 of IC3.
T859 Only Check that +13.8V is present at pin 4 of IC3.
Check that approximately +12V is present at pin 4 of IC1 (the
level is dependent on RV69 being set to maximum).
Check that +7.0V is present at the output of regulator IC2.
D4.4
T858/859 Fault Finding
M850-00
31/09/98 Copyright TEL
4.4 RF Checks
4.4.1 General
You can measure in-circuit RF levels around Q1 and Q3 with an RF probe on which the
earth lead has been shortened to a minimum (i.e. 13mm); refer to the PA Fault Finding
Charts (Section 4.6.1 or Section 4.6.3 as appropriate). You must measure all other stages
with a power meter at the 50Ω points in the circuit.
For problems with the power control circuitry, refer to the Power Control Fault Finding
Charts (Section 4.6.2 or Section 4.6.4 as appropriate).
4.4.2 PA Faults
If a PA fault has occurred, or is suspected, it is easier to find if the various stages are iso-
lated by use of the test breaks (refer to Figure 4.1) and each stage analysed individually.
These 50Ω test break points have been included throughout the RF circuitry to enable
individual transistor stages to be tested.
Note 1:
Use good quality 50Ω coax for the "flying" test leads.
Note 2:
Ensure each output is terminated in a 50Ω load of the correct power rating.
M850-00
T858/859 Fault Finding
D4.7
Copyright TEL 31/09/98
4.5 Voltage Chart
Test conditions:
• typical DC voltages measured with Fluke 77 DVM
• supply voltage 13.8V at socket
• transmitter unkeyed
• allow ±20% for spread of transistor characteristics.
Device Emitter Base Collector
Q1
Q3
Q4
Q6
Q7
Q11
Q13
Q15
Q16
0.0V
0.0V
0.0V
0.0V
0.0V
1.8V
0.0V
13.0V
13.8V
0.0V
0.0V
0.0V
0.0V
0.0V
2.2V
0.0V
13.6V
13.6V
13.0V
13.8V
13.8V
13.8V
13.8V
5.9V
5.9V
13.6V
13.0V
D4.8
T858/859 Fault Finding
M850-00
31/09/98 Copyright TEL
4.6 Fault Finding Charts
4.6.1 T858 PA
Key exciter.
Is input power
to PA >0.7W? Repair exciter.
Remove lead #2 of wireline
L19 from PCB and replace
with flying lead into
power meter.
N
N
N
N
Y
Y
Y
Y
Check for shorts on base of Q1,
chips, input matching components
and input pad.
Check for shorts on Q4 base.
Check Q3 collector voltage.
Check CV32.
Check Q4 collector voltage.
Check Q3 & Q4.
>9.6V RF present
at base of Q1?
>3.5V RF present
at base of Q3?
Check for Unelco shorts at base
or around chips. Check CV8.
Check Q3 collector >13V.
Check Q16 & Q15. Check
IC1 pin 8 is high (>12V).
Check input voltages
on IC1 pin 10.
Q4 output
power >20W?
Replace lead #2 of L19.
Remove leads #2 & #4
of wireline L39 and replace
with flying leads: one to a
wattmeter & one to a 50 ohm
load (or second wattmeter).
Replace leads #2 & #4 of L39
PA OK.
N
N
N
Y
Y
Y
Check for shorts on Q6 base,
CV35 & CV51. Check wireline
L19 & Q6.
Check for shorts on Q7 base,
CV34 & CV57. Check wireline
L19 & Q7.
Q6 output
power >35W?
Q7 output
power >35W?
PA output
power >60W?
Check wireline L19.
Check diplexer &
low pass filter
(*L45, *L46, *L47,
*L42, *C66, *C70).
Check R90/R91
and matching.
M850-00
T858/859 Fault Finding
D4.9
Copyright TEL 31/09/98
4.6.2 T858 Power Control
Approximate voltages under normal operating conditions:
Measurement Output Power
20W 50W
forward power at "FWD-PWR" pad (beside IC3)
RV63/R64 (RV63 wiper)
2.5V
1.4V
4V
2.1V
Does power control work?
Check 12V DC present
on IC1 pin 14.
Check sense volta
g
es
from directional coupler.
Check IC3 pins 7 & 1.
Check Q10 & Q11.
Check IC1 pin 1 >12V DC
when forward power low.
Does forward power
alarm output work?
Does reverse power
alarm output work?
Check Q12 & Q13.
Check IC1 pin 7 >12V DC
when reverse power hi
g
h.
Heat R72 with tip
of solderin
g
iron.
Power control OK.
N
N
N
Y
Y
Y
Y
Heat R72 with tip
of solderin
g
iron.
Check IC1 pin 13 is 0 to 1.4V
as set by RV69.
Check IC1 pin 14
g
oes from
hi
g
h to low as R72 heats up.
Check D17.
Does temperature
shutdown circuit
turn down output power?
N
D4.10
T858/859 Fault Finding
M850-00
31/09/98 Copyright TEL
4.6.3 T859 PA
Key exciter.
Is input power
to PA >0.7W?
>2.5V RF present
at base of Q1?
>3.0V RF present
at base of Q3?
Q6 output
power >60W?
Q7 output
power >60W?
PA output
power >110W?
PA OK.
N
N
N
N
N
N
N
Y
Y
Y
Y
Y
Y
Y
Q4 output
power >40W?
Check wireline L19.
Check diplexer &
low pass filter
(*L45, *L46, *L47,
*L42, *C66, *C70).
Check R90-R94
and matching.
Replace leads #2 & #4 of L39.
Check for shorts on Q7 base,
CV34 & CV57. Check wireline
L19 & Q7.
Check for shorts on Q6 base,
CV35 & CV51. Check wireline
L19 & Q6.
Replace lead #2 of L19.
Remove leads #2 & #4
of wireline L39 and replace
with flying leads: one to a
wattmeter & one to a 50 ohm
load (or second wattmeter).
Check for shorts on Q4 base.
Check Q3 collector voltage.
Check CV32.
Check Q4 collector voltage.
Check Q3 & Q4.
Remove lead #2 of wireline
L19 from PCB and replace
with flying lead into
power meter.
Repair exciter.
Check for shorts on base of Q1,
chips, input matching components
and input pad.
Check for Unelco shorts at base
or around chips. Check CV8.
Check Q3 collector >13V.
Check Q16 & Q15. Check
IC1 pin 8 is high (>12V).
Check input voltages
on IC1 pin 10.
M850-00
T858/859 Fault Finding
D4.11
Copyright TEL 31/09/98
4.6.4 T859 Power Control
Approximate voltages under normal operating conditions:
Measurement Output Power
20W 50W
forward power at "FWD-PWR" pad (beside IC3)
RV63/R64 (RV63 wiper)
2.5V
1.4V
4V
2.1V
Does power control work?
Check 12V DC present
on IC1 pin 14.
Check sense volta
g
es
from directional coupler.
Check IC3 pins 7 & 1.
Check Q10 & Q11.
Check IC1 pin 1 >12V DC
when forward power low.
Does forward power
alarm output work?
Does reverse power
alarm output work?
Check Q12 & Q13.
Check IC1 pin 7 >12V DC
when reverse power hi
g
h.
Heat R72 with tip
of solderin
g
iron.
Heat R72 with tip
of solderin
g
iron.
Check IC1 pin 13 is at 0.6V.
Check IC1 pin 14
g
oes from
hi
g
h to low as R72 heats up.
Check D17.
Power control OK.
N
N
N
N
Y
Y
Y
Y
CAUTION
The followin
g
volta
g
e checks
are all done with RV69
(driver power level)
set to maximum.
Does temperature
shutdown circuit
turn down output power?
D4.12
T858/859 Fault Finding
M850-00
31/09/98 Copyright TEL
4.6.5 T859 Fan Control Circuitry
Key transmitter.
Does fan run at
room temperature?
Spray "freeze" on R116
or short R113.
Does the low temperature
inhibit circuit stop the fan?
Spray "freeze" on R116
OR short R113.
Check IC3 pin 14 >11V.
Check Q21 & Q20.
N
N
Y
Y
Check Q20 & Q21 collector
voltages. Check Q17 & Q18.
Check IC3 pin 14 <1V.
Check Q19.
Check Tx-key is low (at ground).
Do not key
transmitter.
Does high temperature control
circuit activate fan?
Heat R72 with tip
of soldering iron.
Check IC3 pin 8 >11V.
Check Q21 & Q20.
Fan control OK.
Heat R72 to >70°C with
tip of soldering iron.
N
Y
M850-00
T858/859 Fault Finding
D4.13
Copyright TEL 31/09/98
4.7 Replacing RF Power Transistors
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 perform-
ance, 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 (meas-
urement "A" in Figure 4.2) so that the capacitors can be replaced in
exactly the same position. These measurements are shown in Figure
4.2 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 PA.
Figure 4.2 Typical Transistor/Capacitor Spacing (Not To Scale)
Desolder and remove the components from around the transistor.
Q4/Q6/Q7 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.
base collector
measurement A
D4.14
T858/859 Fault Finding
M850-00
31/09/98 Copyright TEL
Q1/Q3 Only: Unscrew the transistor stud nut and remove the device. In the
T859 you will need to remove the fan to access the stud nuts.
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.
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.
Q1/Q3 Only: Lightly solder one tab to the PCB, then torque down the retain-
ing nut to the correct torque (0.7Nm/6lb-in.). Refit the fan to the
T859.
Caution:
Do not solder all the tabs before torquing down otherwise the device
may be broken.
Q4/Q6/Q7 Only: Refit the solder tags.
Solder all transistor tabs to the PCB.
Replace each component in exactly the same position as noted previously.
M850-00
T858/859 Fault Finding
D4.15
Copyright TEL 31/09/98
4.8 Removing The PCB From The Heatsink
Note:
This is a lengthy procedure and should be considered only after all other
checks have been carried out. There are no components on the bottom of the
PCB.
Remove the harmonic filter shield lid.
T859 Only: Desolder the power feed to the fan from the PCB.
Remove the 50 ohm output N-type connector by unscrewing it from the heatsink
casting and desoldering it from the PCB.
Unplug the 50 ohm input coaxial cable from the PCB, unscrew the BNC connector
from the heatsink, and remove the connector and cable (cutting cable ties as
required).
Desolder the positive and negative power feed wires from the PCB.
Desolder the alarm and metering wires from the PCB.
Remove the 2 screws securing the D-range connector and PCB to the heatsink and
withdraw the assembly and wires from the heatsink (cutting cable ties as
required).
Remove the transistor stud nuts and mounting screws. In the T859 you will need
to remove the fan to access the stud nuts.
Remove the mounting screws for the TO-220 devices:
T858/859 Q16, R89, R90 and R91
T859 R92, R93 and R94.
Remove the retaining screws for the wireline couplers (L19 and L39).
Remove the PCB retaining screws:
T858 14
T859 11.
Push the three LEDs out of their front panel grommets.
Lift the PCB gently from the heatsink to gain access to the underside of the board.
Note:
R89-94 and Q1-Q7 may be stuck down with heatsink compound. You may
need to carefully prise them away from the heatsink with a small screw-
driver.
Caution:
Keep the heatsink compound clean while the PCB is detached. Any
objects caught in the heatsink compound underneath the device which
prevent effective earthing and/or heatsinking may cause the device to
fail.
D4.16
T858/859 Fault Finding
M850-00
31/09/98 Copyright TEL
Caution:
Do not operate the PA with the PCB detached as the heatsink is used
for earthing and heat dissipation.
To replace the PCB, reverse the order of removal, taking care that the wiring is cor-
rectly positioned and not 'pinched'.
Q1/Q3 Only: Torque down the retaining nut to the correct torque (0.7Nm/
6lb-in.).
Make sure that the heatsink compound has stayed clean, and that the insulating
pad for Q16 is not damaged.
If you have difficulty refitting the LEDs, try pushing the body of the LED back
into the grommet with a thin screwdriver or spike.
M850-00
T858/859 PCB Information
D5.1.1
Copyright TEL 31/09/98
5 T858/859 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 T858 and T859 power amplifiers:
•parts lists
• grid reference indexes
• mechanical assembly drawings
•PCB layouts
• circuit diagrams.
Section Title IPN Page
5.1 Introduction 5.1.3
5.2 T858 PA PCB 220-01141-01 5.2.1
5.3 T859 PA PCB 220-01159-01 5.3.1
M850-00
T858/859 PCB Information
D5.1.3
Copyright TEL 31/09/98
6.1 Introduction
Product Type Identification
You can identify the PA type by checking the product code printed on a label on the rear of the chas-
sis/heatsink (product codes are explained in Section 1.3 in this Part of the manual, and Figure 1.1 in
Part A shows typical labels).
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 there-
fore 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.
D5.1.4
T858/859 PCB Information
M850-00
31/09/98 Copyright TEL
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 refer-
ence (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:
The miscellaneous and mechanical section lists the variant and common parts in IPN order.
Parts List Amendments
At the front of the parts list is the Parts List Amendments box (an example of which is shown
below). This box contains a list of component changes which took place after the parts list and dia-
grams in this section were compiled. These changes (e.g. value changes, added/deleted compo-
nents, etc.) are listed by circuit reference in alphanumeric order and supersede the information
given in the parts list or diagrams. Components without circuit references are listed in IPN order.
The number in brackets at the end of each entry refers to the Tait internal Change Order document.
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
Internal Part Number -
order the component
b
y
this number
description -
gives a brief description
of the component
Parts List Amendments
R306 Changed from 180Ωto 560Ω(036-13560-00) to increase sensitivity (71003).
circuit reference
or IPN description
of change
IPN of new
component Change Order
number
M850-00
T858/859 PCB Information
D5.1.5
Copyright TEL 31/09/98
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).
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 alpha-
numeric order, along with the appropriate alphanumeric grid references, as shown below:
circuit diagram
reference
PCB layout
reference
components listed
in alphanumeric order
layer number -
1 = top side layer
2 = bottom side layer
component location
on the layer
sheet number
component location
on the sheet
D5.1.6
T858/859 PCB Information
M850-00
31/09/98 Copyright TEL
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 num-
bers 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).
C301
4N7
R303
12
D
S
G
L310
33U
IF-SIG
4R4
C369
100P
C371
10U
R339
100K
%R338
100
DISCRIMINATOR
1R3
2R9
2R9
8A2
t
hese grid references
s
how where the circuit
is continued
M850-00
T858 PCB Information
D5.2.1
Copyright TEL 31/09/98
5.2 T858 Power Amplifier PCB
This section contains the following information.
IPN Section Page
220-01141-01 Parts List
Mechanical & Miscellaneous Parts
Mechanical Assembly
Grid Reference Index
PCB Layout - Bottom Side
PCB Layout - Top Side
RF Section Circuit Diagram
Control Section Circuit Diagram
5.2.3
5.2.8
5.2.9
5.2.11
5.2.13
5.2.14
5.2.15
5.2.16
IPN 220-01141-01
M850-00
T858 PCB Information
D5.2.3
Copyright TEL 31/09/98
T858 Parts List (IPN 220-01141-01)
How To Use This Parts List
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: the circuit reference, variant (if applicable), IPN and description. A number in the variant col-
umn indicates that this is a variant component which is fitted only to the product type listed. Static sensitive devices are indicated by
an (S) at the start of the description column.
The miscellaneous and mechanical section lists the variant and common parts in IPN order. Where possible, a number in the legend
column indicates their position in the mechanical assembly drawing.
The Parts List Amendments box below lists component changes that took place after the parts list and diagrams in this section were
compiled. These changes (e.g. value changes, added/deleted components, etc.) are listed by circuit reference in alphanumeric order
and supersede the information given in the parts list or diagrams. Components without circuit references are listed in IPN order.
Parts List Amendments
C33, C52 & C58 (Low Band) changed from 8p2 (029-01820-02) to 10p (89/06-341).
(Mid Band) changed from 3p3 (015-01330-02) to 3p9 Case Mica type (89/08-460).
C62 (Low Band) changed from 3p3 (015-01330-02) to 3p9 (89/07-411).
C63 & C65 (Low Band) changed from 10p (029-02100-01) to 12p (89/07-411).
C66 (Low Band) changed from 4p7 (029-01470-02) to 5p6 (89/07-411).
C70 (Low Band) changed from 3p9 (015-01390-02) to 4p7 (89/07-411).
C80 & C86 150p deleted. To prevent 800kHz instability (94/05-234).
L1 (Low Band) changed from 1T/3.0mm (052-08330-10) to 1T/4.0mm. To meet rated power (90/10-534).
L14, L15 & L23 Inductor Tait No.545 added. To remove heat sources from PCB (89/08-438).
L27 & L31 Changed from 1.5T/6.0mm (052-08160-15) to 2.5T/6.0mm. To reduce heating in base ferrite beads (89/10-568).
L42 (Low Band) changed from 1T/3.0mm (052-08330-10) to 1T/4.0mm (89/07-411).
L45 (Low Band) changed from 2T/3.5mm (052-08335-20) to 2T/4.5mm (89/07-411).
L46 (Low Band) changed from 2T/4.0mm (052-08330-10) to 2T/4.5mm (89/07-411).
L47 (Low Band) changed from 2T/3.5mm (052-08335-20) to 2T/4.0mm (89/07-411).
R1 & R3 (Low Band) changed from 270e (030-03270-00) to 150e. To reduce power into the driver (90/07-341).
R2 (Low Band) changed from 18e (030-02180-00) to 39e. To reduce power into the driver (90/07-341).
R11 Changed from 100e (030-03100-00) to SOT (Min value 22e). To reduce gain in drive stage (96/07-7104).
R47 Changed from 100k (036-16100-00) to 47k. To improve control range of forward power alarm (89/09-506).
R67 Changed from 4k7 (036-14470-00) to 10k (89/06-341).
R93 Change from 10k (036-15100-00) to 4k7. To raise limits of reverse power alarm switching point (3/10/89).
R99 2k7 added in series with RV63 (89/06-341).
R100 4k7 added in series with RV63 (89/06-341).
IPN 220-01141-01
M850-00
T858 PCB Information
D5.2.5
Copyright TEL 31/09/98
Ref Var IPN Description Ref Var IPN Description
C1 015-02120-02 CAP CER HIQ 1210 CHIP 12P 5% NPO 200V
C2 015-02180-02 CAP CER HIQ 1210 CHIP 18P 5% NPO 200V
C3 015-02220-02 CAP CER HIQ 1210 CHIP 22P 5% NPO 200V
C6 015-03100-02 CAP CER HIQ 1210 CHIP 100P 5% NPO 200V
C7 015-02150-02 CAP CER HIQ 1210 CHIP 15P 5% NPO 200V
CV8 028-02200-01 CAP TRIM 4/20P N750 TOP ADJ RED MUR TZ
C11 015-02220-02 CAP CER HIQ 1210 CHIP 22P 5% NPO 200V
C12 015-02180-02 CAP CER HIQ 1210 CHIP 18P 5% NPO 200V
C15 015-03100-02 CAP CER HIQ 1210 CHIP 100P 5% NPO 200V
C16 015-24470-08 CAP CER 0805 CHIP 4N7 10% X7R 50V
C17 020-07470-04 CAP ELECT RADL 4M7 25V 20% 8X13MM SOLID
C18 015-24470-08 CAP CER 0805 CHIP 4N7 10% X7R 50V
C19 020-07470-04 CAP ELECT RADL 4M7 25V 20% 8X13MM SOLID
C20 015-03100-02 CAP CER HIQ 1210 CHIP 100P 5% NPO 200V
C22 015-02680-02 CAP CER HIQ 1210 CHIP 68P 5% NPO 200V
C23 029-02270-02 CAP MICA 5MM CASE 27P 5%
C24 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C27 LOW 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C27 MID 029-02270-02 CAP MICA 5MM CASE 27P 5%
*C27 HI 029-02270-02 CAP MICA 5MM CASE 27P 5%
*C28 LOW 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C28 MID 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C28 HI 029-02220-02 CAP MICA 5MM CASE 22P 5%
C29 029-03100-02 CAP MICA 5MM CASE 100P 5%
CV32 028-02100-03 CAP TRIM 2/10P JOHNSON 187-0106-175
*C33 LOW 029-02100-02 CAP MICA 5MM CASE 10P 5%
*C33 MID 029-01390-02 CAP MICA 5MM CASE 3P9 5%
*C33 HI NOT FITTED
CV34 028-02100-03 CAP TRIM 2/10P JOHNSON 187-0106-175
CV35 028-02100-03 CAP TRIM 2/10P JOHNSON 187-0106-175
C36 029-02270-02 CAP MICA 5MM CASE 27P 5%
C37 029-02270-02 CAP MICA 5MM CASE 27P 5%
C40 029-02270-02 CAP MICA 5MM CASE 27P 5%
C41 029-02270-02 CAP MICA 5MM CASE 27P 5%
*C42 LOW 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C42 MID 029-02270-02 CAP MICA 5MM CASE 27P 5%
*C42 HI 029-02220-02 CAP MICA 5MM CASE 22P 5%
*C43 LOW 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C43 MID 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C43 HI 029-02270-02 CAP MICA 5MM CASE 27P 5%
C45 015-03100-02 CAP CER HIQ 1210 CHIP 100P 5% NPO 200V
C46 015-03100-02 CAP CER HIQ 1210 CHIP 100P 5% NPO 200V
*C47 LOW 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C47 MID 029-02270-02 CAP MICA 5MM CASE 27P 5%
*C47 HI 029-02220-02 CAP MICA 5MM CASE 22P 5%
*C49 LOW 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C49 MID 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C49 HI 029-02270-02 CAP MICA 5MM CASE 27P 5%
C50 029-03100-02 CAP MICA 5MM CASE 100P 5%
CV51 028-02100-03 CAP TRIM 2/10P JOHNSON 187-0106-175
*C52 LOW 029-02100-02 CAP MICA 5MM CASE 10P 5%
*C52 MID 029-01390-02 CAP MICA 5MM CASE 3P9 5%
*C52 HI NOT FITTED
C54 015-24470-08 CAP CER 0805 CHIP 4N7 10% X7R 50V
C55 020-07470-04 CAP ELECT RADL 4M7 25V 20% 8X13MM SOLID
C56 029-03100-02 CAP MICA 5MM CASE 100P 5%
CV57 028-02100-03 CAP TRIM 2/10P JOHNSON 187-0106-175
*C58 LOW 029-02100-02 CAP MICA 5MM CASE 10P 5%
*C58 MID 029-01390-02 CAP MICA 5MM CASE 3P9 5%
*C58 HI NOT FITTED
C60 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C61 015-24470-08 CAP CER 0805 CHIP 4N7 10% X7R 50V
*C62 LOW 015-01390-02 CAP CER HIQ 1210 CHIP 3P9 5% NPO 200V
*C62 MID 015-01330-02 CAP CER HIQ 1210 CHIP 3P3 5% NPO 200V
*C62 HI 015-01330-02 CAP CER HIQ 1210 CHIP 3P3 5% NPO 200V
*C63 LOW 029-02120-01 CAP MICA 10MM CASE 12P 5%
*C63 MID 029-02100-01 CAP MICA 10MM CASE 10P 10%
*C63 HI 029-02100-01 CAP MICA 10MM CASE 10P 10%
*C65 LOW 029-02120-01 CAP MICA 10MM CASE 12P 5%
*C65 MID 029-02100-01 CAP MICA 10MM CASE 10P 10%
*C65 HI 029-02100-01 CAP MICA 10MM CASE 10P 10%
*C66 LOW 029-01560-02 CAP MICA 5MM CASE 5P6 5%
*C66 MID 029-01470-02 CAP MICA 5MM CASE 4P7 5%
*C66 HI 029-01470-02 CAP MICA 5MM CASE 4P7 5%
C67 015-21220-01 CAP CER 0805 CHIP 2P2 +/-0.25P NPO 50V
C68 015-21220-01 CAP CER 0805 CHIP 2P2 +/-0.25P NPO 50V
*C70 LOW 015-21470-01 CAP CER 0805 CHIP 4P7 +/-0.25P NPO 50V
*C70 MID 015-21390-01 CAP CER 0805 CHIP 3P9 +/-0.25P NPO 50V
*C70 HI 015-21390-01 CAP CER 0805 CHIP 3P9 +/-0.25P NPO 50V
C72 015-24470-08 CAP CER 0805 CHIP 4N7 10% X7R 50V
C73 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C76 015-24470-08 CAP CER 0805 CHIP 4N7 10% X7R 50V
C77 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C78 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C81 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C84 015-24470-08 CAP CER 0805 CHIP 4N7 10% X7R 50V
C85 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C87 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C90 015-06100-08 CAP CER 1206 CHIP 100N 10% X7R 50V
C91 025-08100-02 CAP TANT BEAD 10M 10% 16V
C92 015-25100-08 CAP CER 0805 CHIP 10N 10% X7R 50V
C93 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C95 015-06100-08 CAP CER 1206 CHIP 100N 10% X7R 50V
C96 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C97 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C98 015-24470-08 CAP CER 0805 CHIP 4N7 10% X7R 50V
C99 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C100 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C101 015-25100-08 CAP CER 0805 CHIP 10N 10% X7R 50V
C102 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C103 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C104 015-24470-08 CAP CER 0805 CHIP 4N7 10% X7R 50V
C105 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C106 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C107 015-06100-08 CAP CER 1206 CHIP 100N 10% X7R 50V
C108 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C109 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C110 015-01470-02 CAP CER HIQ 1210 CHIP 4P7 5% NPO 200V
C111 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C112 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C113 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
D1 001-00013-45 (S) DIODE SCHOTTKY 1SS97/2
D2 001-00013-45 (S) DIODE SCHOTTKY 1SS97/2
D3 001-00011-60 (S) DIODE SR2607 6A/30V
D5 008-00013-32 (S) LED 3MM RED LO CURRENT NO MTG
D6 001-10000-70 (S) DIODE SMD BAV70 DUAL SW SOT-23 COMCTH
D10 008-00013-35 (S) LED 3MM GREEN LO CURRENT NO MTG
D11 008-00013-32 (S) LED 3MM RED LO CURRENT NO MTG
D13 001-10000-70 (S) DIODE SMD BAV70 DUAL SW SOT-23 COMCTH
D17 001-10000-70 (S) DIODE SMD BAV70 DUAL SW SOT-23 COMCTH
IC1 002-10003-24 (S) IC SMD 324 QUAD OP AMP SO14
IC2 002-00014-62 (S) IC 317L 100MA REG 3 TERMINAL TO-92
IC3 002-10003-58 (S) IC SMD LM358 DUAL OP AMP
*L1 LOW 052-08340-10 COIL A/W 1T/4.0MM SMD 0.8MM WIRE
*L1 MID 052-08330-10 COIL A/W 1T/3.0MM SMD 0.8MM WIRE
*L1 HI 052-08330-10 COIL A/W 1T/3.0MM SMD 0.8MM WIRE
L2 052-08160-25 COIL A/W 2.5T/6.0MM HOR 0.8MM WIRE
L3 065-00010-04 BEAD FERRITE F8 4X2X5MM
L5 065-00010-04 BEAD FERRITE F8 4X2X5MM
L6 052-08160-25 COIL A/W 2.5T/6.0MM HOR 0.8MM WIRE
L7 052-08160-25 COIL A/W 2.5T/6.0MM HOR 0.8MM WIRE
L8 065-00010-04 BEAD FERRITE F8 4X2X5MM
L11 065-00010-04 BEAD FERRITE F8 4X2X5MM
L12 065-00010-04 BEAD FERRITE F8 4X2X5MM
L13 052-08160-15 COIL A/W 1.5T/6.0MM HOR 0.8MM WIRE
L14 051-00005-45 COIL IND 18MM FORMED COPPER STRIP
L15 051-00005-45 COIL IND 18MM FORMED COPPER STRIP
L16 065-00010-04 BEAD FERRITE F8 4X2X5MM
L17 065-00010-04 BEAD FERRITE F8 4X2X5MM
L18 051-00005-53 COIL TAIT NO 553 A/W 10MM LINK T858/9
L19 051-00005-39 COUPLER WIRELINE TAIT COIL DWG NO 539
L21 052-08160-15 COIL A/W 1.5T/6.0MM HOR 0.8MM WIRE
L22 065-00010-04 BEAD FERRITE F8 4X2X5MM
L23 051-00005-45 COIL IND 18MM FORMED COPPER STRIP
L25 052-08330-10 COIL A/W 1T/3.0MM SMD 0.8MM WIRE
L26 052-08330-10 COIL A/W 1T/3.0MM SMD 0.8MM WIRE
L27 052-08160-25 COIL A/W 2.5T/6.0MM HOR 0.8MM WIRE
L28 065-00010-04 BEAD FERRITE F8 4X2X5MM
L31 052-08160-25 COIL A/W 2.5T/6.0MM HOR 0.8MM WIRE
L32 065-00010-04 BEAD FERRITE F8 4X2X5MM
L35 051-00005-53 COIL TAIT NO 553 A/W 10MM LINK T858/9
L36 065-00010-04 BEAD FERRITE F8 4X2X5MM
L37 065-00010-04 BEAD FERRITE F8 4X2X5MM
L38 051-00005-53 COIL TAIT NO 553 A/W 10MM LINK T858/9
L39 051-00005-39 COUPLER WIRELINE TAIT COIL DWG NO 539
L41 056-00021-04 IND FXD 330NH AXIAL
*L42 LOW 052-08340-10 COIL A/W 1T/4.0MM SMD 0.8MM WIRE
*L42 MID 052-08330-10 COIL A/W 1T/3.0MM SMD 0.8MM WIRE
*L42 HI 052-08330-10 COIL A/W 1T/3.0MM SMD 0.8MM WIRE
L43 052-08335-10 COIL A/W 1T/3.5MM SMD 0.8MM WIRE
*L45 LOW 052-08345-20 COIL A/W 2T/4.5MM SMD 0.8MM WIRE
*L45 MID 052-08335-20 COIL A/W 2T/3.5MM SMD 0.8MM WIRE
*L45 HI 052-08335-20 COIL A/W 2T/3.5MM SMD 0.8MM WIRE
*L46 LOW 052-08345-20 COIL A/W 2T/4.5MM SMD 0.8MM WIRE
*L46 MID 052-08340-20 COIL A/W 2T/4.0MM SMD 0.8MM WIRE
*L46 HI 052-08340-20 COIL A/W 2T/4.0MM SMD 0.8MM WIRE
*L47 LOW 052-08340-20 COIL A/W 2T/4.0MM SMD 0.8MM WIRE
*L47 MID 052-08335-20 COIL A/W 2T/3.5MM SMD 0.8MM WIRE
*L47 HI 052-08335-20 COIL A/W 2T/3.5MM SMD 0.8MM WIRE
L49 056-00021-04 IND FXD 330NH AXIAL
L51 056-00021-04 IND FXD 330NH AXIAL
L52 051-00005-53 COIL TAIT NO 553 A/W 10MM LINK T858/9
Q1 000-00022-70 (S) XSTR SD1134 NPN STUD MTG UHF PWR 2W
Q3 000-00022-75 (S) XSTR SD1433 NPN STUD MTG UHF PWR 10W
Q4 000-00022-80 (S) XSTR SD1488 NPN 6LFL UHF PWR 40W
Q6 000-00022-80 (S) XSTR SD1488 NPN 6LFL UHF PWR 40W
Q7 000-00022-80 (S) XSTR SD1488 NPN 6LFL UHF PWR 40W
Q10 000-00020-70 (S) XSTR BS170 JFET TO-92 SMALL SIG
Q11 000-10008-17 (S) XSTR SMD BC817-25 NPN SOT-23 AF LO PWR
Q12 000-00020-70 (S) XSTR BS170 JFET TO-92 SMALL SIG
Q13 000-10008-17 (S) XSTR SMD BC817-25 NPN SOT-23 AF LO PWR
Q15 000-10008-17 (S) XSTR SMD BC817-25 NPN SOT-23 AF LO PWR
Q16 000-00030-95 (S) XSTR 2N6107 PNP TO-220 AF PWR
Note
LOW = 400-440MHZ
MID = 440-480MHZ
HI = 480-520MHZ
IPN 220-01141-01
D5.2.6
T858 PCB Information
M850-00
31/09/98 Copyright TEL
Ref Var IPN Description Ref Var IPN Description
*R1 LOW 032-33150-02 RES M/F PWR 150E 5% 1W 8X2.5MM 12MML/S
*R1 MID 030-03270-00 RES FILM 270E 5% 0.25W 7X2.5MM
*R1 HI 030-03470-00 RES FILM 470E 5% 0.25W 7X2.5MM
*R2 LOW 032-32390-02 RES M/F PWR 39E 5% 1W 8X2.5MM 12MML/S
*R2 MID 030-02180-00 RES FILM 18E 5% 0.25W 7X2.5
*R2 HI 030-02120-00 RES FILM 12E 5% 0.25W 7X2.5W
*R3 LOW 030-03150-00 RES FILM 150E 5% 0.25W 7X2.5MM
*R3 MID 030-03270-00 RES FILM 270E 5% 0.25W 7X2.5MM
*R3 HI 030-03470-00 RES FILM 470E 5% 0.25W 7X2.5MM
R7 030-02100-00 RES FILM 10E 5% 0.25W 7X2.5MM
R8 032-33100-00 RES M/F PWR 100E 5% 1W 10X4MM
R11 030-03100-00 RES FILM 100E 5% 0.25W 7X2.5MM
R30 030-03100-00 RES FILM 100E 5% 0.25W 7X2.5MM
R31 030-03100-00 RES FILM 100E 5% 0.25W 7X2.5MM
R32 030-02820-00 RES FILM 82E 5% 0.25W 7X2.5MM
R33 030-02820-00 RES FILM 82E 5% 0.25W 7X2.5MM
R36 036-13680-00 RES M/F 0805 CHIP 680E 5%
R38 036-17100-00 RES M/F 0805 CHIP 1M 5%
R39 036-16100-00 RES M/F 0805 CHIP 100K 5%
R42 036-15100-00 RES M/F 0805 CHIP 10K 5%
RV43 042-05470-09 RES PRESET 50K CERMET 9.5MM SQ FLAT
R44 036-14470-00 RES M/F 0805 CHIP 4K7 5%
R47 036-15470-00 RES M/F 0805 CHIP 47K 5%
RV48 042-04500-08 RES PRESET 5K CERMET 9.5MM SQ FLAT
R49 036-13680-00 RES M/F 0805 CHIP 680E 5%
R50 036-13680-00 RES M/F 0805 CHIP 680E 5%
RV52 042-04500-08 RES PRESET 5K CERMET 9.5MM SQ FLAT
R55 036-17100-00 RES M/F 0805 CHIP 1M 5%
R56 036-15100-00 RES M/F 0805 CHIP 10K 5%
RV57 042-05470-09 RES PRESET 50K CERMET 9.5MM SQ FLAT
R58 036-14470-00 RES M/F 0805 CHIP 4K7 5%
R61 036-13220-00 RES M/F 0805 CHIP 220E 5%
R62 036-14100-00 RES M/F 0805 CHIP 1K 5%
RV63 044-04200-03 RES PRESET MULTITURN 2K 10T PNL MTG
R64 036-14470-00 RES M/F 0805 CHIP 4K7 5%
R67 036-15100-00 RES M/F 0805 CHIP 10K 5%
R68 036-14470-00 RES M/F 0805 CHIP 4K7 5%
RV69 042-04220-02 RES PRESET 2K CERMET 9.5MM SQ FLAT
R72 045-04470-01 RES NTC 4K7 20% 5MM DISC
R73 036-16220-00 RES M/F 0805 CHIP 220K 5%
RV74 042-05100-10 RES PRESET 10K CERMET 9.5MM SQ FLAT
R77 036-14220-00 RES M/F 0805 CHIP 2K2 5%
R78 036-14100-00 RES M/F 0805 CHIP 1K 5%
R80 036-13100-00 RES M/F 0805 CHIP 100E 5%
R81 036-14100-00 RES M/F 0805 CHIP 1K 5%
R82 036-14470-00 RES M/F 0805 CHIP 4K7 5%
R83 036-14100-00 RES M/F 0805 CHIP 1K 5%
R84 036-14470-00 RES M/F 0805 CHIP 4K7 5%
R85 036-14100-00 RES M/F 0805 CHIP 1K 5%
R86 036-14100-00 RES M/F 0805 CHIP 1K 5%
R87 036-15100-00 RES M/F 0805 CHIP 10K 5%
R88 036-15100-00 RES M/F 0805 CHIP 10K 5%
R89 039-02500-01 DUMMY LOAD 50E 1% 10W TO-220 NIKKOHM
R90 039-02500-01 DUMMY LOAD 50E 1% 10W TO-220 NIKKOHM
R91 039-02500-01 DUMMY LOAD 50E 1% 10W TO-220 NIKKOHM
R92 036-14100-00 RES M/F 0805 CHIP 1K 5%
R93 036-15100-00 RES M/F 0805 CHIP 10K 5%
R94 036-14100-00 RES M/F 0805 CHIP 1K 5%
R95 036-14100-00 RES M/F 0805 CHIP 1K 5%
R96 036-14100-00 RES M/F 0805 CHIP 1K 5%
R97 036-14100-00 RES M/F 0805 CHIP 1K 5%
R98 036-12100-00 RES M/F 0805 CHIP 10E 5%
R99 036-14270-00 RES M/F 0805 CHIP 2K7 5%
R100 036-14470-00 RES M/F 0805 CHIP 4K7 5%
SK1 240-02100-44 SKT COAX MINI JACK PCB MTG ANGLED
IPN 220-01141-01
D5.2.8
T858 PCB Information
M850-00
31/09/98 Copyright TEL
IPN Legend Description IPN Legend Description
T858 Mechanical & Miscellaneous Parts (220-01141-01)
065-00010-20 BEAD FERRITE BALUN 4B1 PHILIPS
Placed on DC+ power cables.
070-01001-00 22 D-RANGE 15 WAY COMPL T800
070-02003-00 LED RED COMPL T800 PA
“High Rev/Low Fwd Power” LEDs - D11/D5
070-02004-00 LED GREEN COMPL T800 PA
“Supply” LED - D10
201-00030-01 WIRE T/C 7/0.2 PVC BROWN
Forward power alarm.
201-00030-03 WIRE T/C 7/0.2 PVC ORANGE
Reverse power meter.
201-00030-04 WIRE T/C 7/0.2 PVC YEL
Reverse power.
201-00030-05 WIRE T/C 7/0.2 PVC GRN
Forward power meter.
201-00030-06 WIRE T/C 7/0.2 PVC BLUE
Tx-Key.
201-00030-07 WIRE T/C 7/0.2 PVC VIOLET
Reverse power alarm.
201-00030-09 WIRE T/C 7/0.2 PVC WHITE
Temperature sense.
201-00030-10 WIRE T/C 7/0.2 PVC BLACK
Forward power.
201-00050-12 AUTO 152 RED 28/0.3 PVC
DC+ from D-range PCB.
201-00050-20 AUTO 152 BLACK 28/0.3 PVC
DC- from D-range PCB.
219-02592-00 CABLE ASSY RG223/U N TO BNC
Exciter/PA connecting cable.
219-02599-00 CABLE ASSY PA INPUT REAR DRIVE
RF input cable/connector assembly.
220-01141-01 1 PCB T858 50W PA
220-01152-00 2 PCB T858/859 DIRNL COUPLER
240-02100-06 25 SKT COAX N TYPE PNL MTG OP-TER
240-02100-17 27 SKT COAX BNC PNL JAC CRP RG316
Part of 219-02599-00 sub-assembly.
240-06010-15 24 BLOCK LATCHING 15W D RANGE
303-23117-00 38 COVER SIDE COMPL A2M2223
303-23120-00 28 COVER A3M2288 HOLE BLANKING
303-50005-00 30 CONTACT A4M2311 SPRING EARTH
308-01007-01 32 HANDLE BASE STATION SERIES II
308-13085-01 4 HSINK DIECAST T858 50W PA
308-13086-00 19 HSINK A3M2271 2MM W/LINE PA
316-06617-00 31 PNL PA NO INP DRV SER II SNGL
316-85018-00 26 PIN A4M1397 COAX CONDUCTOR
319-01147-00 3 SHIELD A3M2224 WALL T859 PA
319-01148-00 29 SHIELD A3M2225 LID T859 PA
319-30033-00 13 SPACER A4M1339 UHF PA
345-00040-16 23 SCRW M3X20MM P/POZ ST BZ
349-00020-07 6 SCRW 4-40 X 5/16 P/POZ T/T BLK
349-00020-09 11 SCRW T/T 4-40X3/8 IN P/POZ BLK
349-00020-36 37 LIM)SCREW TT M3X8m PANTORX BLK
349-00020-50 21 SCRW T/T 4-40x5/8 P/POZ BLK
352-00010-29 34 NUT M4 NYLOC HEX
352-00010-35 15 NUT 8-32 UNC HEX XSTR MTG
353-00010-10 10 WSHR M3 FLAT 7MMx0.6MM ST BZ
353-00010-24 33 WSHR M4x8mm Flat
356-00010-01 18 TAG SOLDER 3MM SHORT M6132/3.2
356-00010-03 5 TAG SOLDER 3MM LONG M614/3.2
360-00010-41 36 BUSH SHORTY BLK
362-00010-07 7 GASKET SIL INSULATING TO-220
362-00010-13 9 BUSH INSULATING 1.1MM TOP HAT
362-00010-33 35 GROMMET LED MTG 3MM
365-00100-20 LABEL WHITE S/A 28X11MM
365-01540-00 LABEL PA TYPE APPL/SERIAL NO
369-00010-14 TIE CABLE NYLON 100*2.6MM
399-00010-51 BAG PLASTIC 75*100MM
400-00020-09 SLEEVING 3MM SIL RUBBER
410-01081-01 CRT T800 SERIES II
Note
The following electrical components are also included in the
mechanical assembly drawing to help identify certain mechani-
cal components.
000-00022-70 14 (S) XSTR SD1134 NPN STUD MTG UHF
PWR 2W - Q1
000-00022-75 16 (S) XSTR SD1433 NPN STUD MTG UHF
PWR 10W - Q3
000-00022-80 17 (S) XSTR SD1488 NPN 6LFL UHF PWR
40W - Q4, Q6, Q7
000-00030-95 8 (S) XSTR 2N6107 PNP TO-220 AF PWR
Q16
039-02500-01 12 DUMMY LOAD 50E 1% 10W TO-220
NIKKOHM - R90, R91
051-00005-39 20 COUPLER WIRELINE TAIT COIL DWG NO
539 - L19, L39
IPN 220-01141-01
M850-00
T858 PCB Information
D5.2.11
Copyright TEL 31/09/98
Device PCB Circuit Device PCB CircuitDevice PCB Circuit Device PCB Circuit
T858 Grid Reference Index (IPN 220-01141-01)
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 charac-
ters 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.
C1 1:Q9 1-C7
C2 1:Q9 1-C6
C3 1:R9 1-C6
C6 1:S8 1-D7
C7 1:Q7 1-E7
CV8 1:R7 1-E7
C11 1:R6 1-A1
C12 1:Q6 1-A1
C15 1:S5 1-B2
C16 1:S5 1-C3
C17 1:T6 1-C3
C18 1:S2 1-D3
C19 1:T3 1-D3
C20 1:S3 1-E3
C22 1:Q5 1-B2
C23 1:Q5 1-C2
C24 1:R5 1-C2
*C27 1:Q3 1-D2
*C28 1:R3 1-D2
C29 1:P3 1-E2
CV32 1:P2 1-E2
*C33 1:P3 1-F2
CV34 1:M4 1-G2
CV35 1:M8 1-G5
C36 1:L8 1-G4
C37 1:L8 1-H4
C40 1:L4 1-G2
C41 1:L3 1-H2
*C42 1:K4 1-J2
*C43 1:K3 1-J2
C45 1:K4 1-J3
C46 1:K7 1-J4
*C47 1:K8 1-J4
*C49 1:K8 1-J4
C50 1:H8 1-K5
CV51 1:H8 1-L4
*C52 1:J8 1-K4
C54 1:K6 1-K3
C55 1:K6 1-K3
C56 1:H4 1-L2
CV57 1:H3 1-L2
*C58 1:J3 1-K2
C60 1:E9 1-N4
C61 1:F9 1-N4
*C62 See Note 1-P4
*C63 1:C9 1-P5
*C65 1:C9 1-Q5
*C66 1:B8 1-Q4
C67 See Note 1-P4
C68 1:D7 1-P4
*C70 1:D6 1-Q4
C72 1:E6 1-M6
C73 1:F6 1-M5
C76 1:V10 2-B7
C77 1:V10 2-C7
C78 1:U10 2-D6
C80 1:V5 2-F7
C81 1:U2 2-G6
C84 1:V9 2-C5
C85 1:V9 2-C5
C86 1:V5 2-F4
C87 1:S2 2-G3
C90 1:V7 2-K5
C91 1:W8 2-N5
C92 1:U5 2-N5
C93 1:U5 2-N5
C95 1:V5 2-H1
C96 1:U5 2-N3
C97 1:K10 1-J1
C98 1:L10 1-J1
C99 1:U5 2-M2
C100 1:T5 2-N4
C101 1:V3 2-P2
C102 1:U8 2-Q5
C103 1:U8 2-Q4
C104 1:U7 2-R6
C105 1:T9 2-R5
C106 1:T8 2-R5
C107 1:U4 2-H8
C108 1:T4 2-J7
C109 1:T4 2-J4
C110 1:G3 1-L3
C111 1:W10 2-A7
C112 1:V9 2-B5
C113 1:V3 2-N4
D1 1:F6 1-M5
D2 1:E9 1-N4
D3 1:T2 2-A2
D5 1:W9 2-C7
D6 1:U2 2-G6
2-G6
D10 1:W10 2-C5
D11 1:W9 2-D5
D13 1:R2 2-F3
2-F3
D17 1:V3 2-N4
2-M4
IC1 1:U5 2-H1
2-F7
2-E5
2-N5
2-N3
IC2 1:V8 2-K5
IC3 1:T4 2-J8
2-H7
2-H4
* L1 1:R9 1-C6
L2 1:P8 1-D6
L3 1:P9 1-D5
L5 1:T8 1-D8
L6 1:R7 1-D7
L7 1:P7 1-E6
L8 1:P8 1-E6
L11 1:T7 1-B4
L12 1:S5 1-B3
L13 1:R5 1-B2
L14 1:Q3 1-E2
L15 1:K8 1-K5
L16 1:S4 1-D3
L17 1:S3 1-D3
L18 1:R3 1-D2
L19 1:N6 1-F3
L21 1:P5 1-C1
L22 1:P6 1-C1
L23 1:K4 1-K2
L25 1:M3 1-F2
L26 1:M9 1-F4
L27 1:L9 1-G4
L28 1:M9 1-G4
L31 1:M3 1-G2
L32 1:M2 1-G1
L35 1:J7 1-J4
L36 1:J6 1-J4
L37 1:J5 1-J3
L38 1:J4 1-J3
L39 1:H6 1-L4
L41 1:F9 1-N4
*L42 1:D7 1-P4
L43 1:C6 1-Q4
*L45 1:C8 1-P5
*L46 1:C9 1-P5
*L47 1:B8 1-Q5
L49 1:F6 1-M6
L51 1:L10 1-J1
L52 1:C7 1-P4
PL1 1:G5 2-A3
2-A2
2-A2
2-A2
2-A3
2-A8
2-A8
2-A1
2-A1
2-A1
2-A1
2-A0
2-A5
2-A3
2-A7
Q1 1:Q8 1-D7
Q3 1:Q6 1-B2
Q4 1:Q4 1-D2
Q6 1:K8 1-H5
Q7 1:K4 1-H2
Q10 1:V10 2-B7
Q11 1:V10 2-D7
Q12 1:V9 2-C5
Q13 1:V9 2-D5
Q15 1:U8 2-Q5
Q16 1:T10 2-R5
*R1 1:R10 1-B6
*R2 1:R10 1-B7
*R3 1:R9 1-B6
R7 1:R8 1-C6
R8 1:S7 1-D7
R11 1:R6 1-F7
R30 1:G9 1-M4
R31 1:E7 1-N5
R32 1:D6 1-Q4
R33 1:D6 1-Q4
R36 1:W9 2-C6
R38 1:V5 2-E7
R39 1:V5 2-E6
R42 1:V5 2-F7
RV43 1:V1 2-G7
R44 1:U4 2-H6
R47 1:V4 2-F6
RV48 1:W1 2-F6
R49 1:W10 2-C6
R50 1:W8 2-D6
RV52 1:T1 2-F5
R55 1:V5 2-E4
R56 1:V5 2-F4
RV57 1:S1 2-F4
R58 1:U5 2-H5
R61 1:V8 2-L5
R62 1:V8 2-L5
RV63 1:V6 2-M5
R64 1:T5 2-N5
R67 1:V3 2-M4
R68 1:U4 2-L3
RV69 1:V2 2-M3
R72 1:K10 1-H1
R73 1:U4 2-N2
RV74 1:W2 2-P2
R77 1:U6 2-P6
R78 1:U8 2-Q5
R80 1:U8 2-Q6
R81 1:V4 2-D7
R82 1:V4 2-D7
R83 1:V5 2-D4
R84 1:V5 2-D5
R85 1:U4 2-F4
R86 1:U4 2-G7
R87 1:T4 2-J7
R88 1:T5 2-J4
R89 1:N10 1-F3
R90 1:G1 1-M3
R91 1:F1 1-M3
R92 1:S1 2-D3
R93 1:U1 2-F6
R94 1:U2 2-F8
R95 1:U4 2-M2
R96 1:T4 2-K7
R97 1:T5 2-K5
R98 1:W8 2-M5
R99 1:W7 2-M5
R100 1:W7 2-M5
SK1 1:R10 1-A7
Note:
*
C62 & C67 are mounted on the
Directional Coupler PCB (220-
01152-00).
M850-00
T859 PCB Information
D5.3.1
Copyright TEL 31/09/98
5.3 T859 Power Amplifier PCB
This section contains the following information.
IPN Section Page
220-01159-01 Parts List
Mechanical & Miscellaneous Parts
Mechanical Assembly
Grid Reference Index
PCB Layout - Bottom Side
PCB Layout - Top Side
RF Section Circuit Diagram
Control Section Circuit Diagram
5.3.3
5.3.8
5.3.9
5.3.11
5.3.13
5.3.14
5.3.15
5.3.16
IPN 220-01159-01
M850-00
T859 PCB Information
D5.3.3
Copyright TEL 31/09/98
T859 Parts List (IPN 220-01159-01)
How To Use This Parts List
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: the circuit reference, variant (if applicable), IPN and description. A number in the variant col-
umn indicates that this is a variant component which is fitted only to the product type listed. Static sensitive devices are indicated by
an (S) at the start of the description column.
The miscellaneous and mechanical section lists the variant and common parts in IPN order. Where possible, a number in the legend
column indicates their position in the mechanical assembly drawing.
The Parts List Amendments box below lists component changes that took place after the parts list and diagrams in this section were
compiled. These changes (e.g. value changes, added/deleted components, etc.) are listed by circuit reference in alphanumeric order
and supersede the information given in the parts list or diagrams. Components without circuit references are listed in IPN order.
Parts List Amendments
C6 (Hi Band) 100n mylar capacitor and 10e resistor added in series across C6 to improve low power stability and
eliminate 3MHz instabilities (710294).
C11 & C12 (Hi Band) 10p added across base & emitters of Q3. To ensure adequate drive power on hi band versions (90/08-
390).
(Hi Band) deleted to improve low power stability and eliminate 3MHz instabilities (710294).
C22 (Low Band) changed from 100p (015-03100-02) to 33p. To eliminate instability & improve power out (90/01-023).
(Mid & Hi Bands) changed from 100p (015-03100-02) to 22p. To eliminate instability & improve power out (90/01-
023).
C23 (Low Band) changed from 47p (029-02470-02) to 27p. To eliminate instability & improve power out (90/01-023).
(Hi Band) changed from 47p (029-02470-02) to 39p. To accommodate power variations across the band (89/10-
547)
(Mid & Hi Bands) changed from 39p (029-02390-02) to 18p. To eliminate instability & improve power out (90/01-
023).
C24 (Low Band) changed from 39p (029-02390-02) to 22p. To eliminate instability & improve power out (90/01-023).
(Mid Band) changed from 39p (029-02390-02) to 18p. To eliminate instability & improve power out (90/01-023).
(Hi Band) changed from 33p (029-02330-02) to 18p. To eliminate instability & improve power out (90/01-023).
C27,C43 & C47 (Hi Band) changed from 33p (029-02330-02) to 27p. To accommodate power variations across the band (89/10-
547)
C28 & C49 (Mid & Hi Bands) changed from 33p (029-02330-02) to 27p. To eliminate instability & improve power out (90/01-
023).
C27, C28, C42
C43, C47 & C49
Changed from mica case type to ceramic chip type. All values remain the same. To eliminate 3MHz & 90MHz
instabilities (95/08-7040 & 96/07-7106)).
C42, C43, C47
& C49
(Mid Band) changed from ceramic chip to cased mica. All values remain the same. To improve power output and
reduce excessive heating around the collectors of the final transistors (710656).
C69 10u added. To eliminate instability & improve power out (90/01-023).
C70A 100n added. To eliminate instability & improve power out (90/01-023).
C80 & C86 150p deleted. To prevent 800kHz instability (93/03-155).
C102 150p deleted. To prevent 800kHz instability of Q15 & Q16 (95/08-7040 & 96/08-7113).
C130 & C131 150p added. To eliminate instability & improve power out (90/01-023).
IC4 LM317L added. To eliminate instability & improve power out (90/01-023).
L18, L35 & L38 Changed from coil 1.5T/8.0mm (052-08180-15) to Inductor Hairpin 10mm Tall (89/10-566).
IPN 220-01159-01
D5.3.4
T859 PCB Information
M850-00
31/09/98 Copyright TEL
L21 Changed from coil 1.5T/6.0mm (052-08160-15) to 2.5T/6.0mm (90/01-023).
L27 & L31 Changed from coil 1.5T/6.0mm (052-08160-15) to 2.5T/6.0mm (89/10-566).
R7 (Hi Band) changed from 33e (030-02330-20) to 68e. To ensure adequate drive power on hi band versions (90/08-
390).
R11 (Hi Band) changed from 10e (032-32100-00) to 22e. To improve power output from driver stages (90/06-240).
R34 & R35 (Low & Mid Bands) 180e added across base & emitter of Q6. To eliminate instability & improve power out (90/01-
023).
R37 1k added. To eliminate instability & improve power out (90/01-023).
R69 10e added. To eliminate instability & improve power out (90/01-023).
R70 220e added. To eliminate instability & improve power out (90/01-023).
R81 1k deleted. To ensure forward power alarm operates under all expected conditions (97/01-0012).
R82 & R84 Changed from 4k7 (036-14470-00) to 2k2. To ensure proper operation of alarm circuits (92/07-501).
R96 Changed from 10k (036-15100-00) to 4k7. To raise limits of reverse power alarm switching point (3/10/89).
R98 Changed from 1k (036-14100-00) to 3k9. To provide adequate setting margin for forward power alarm (89/11-
581).
356-00010-03 Solder tag fitted under R92 mounting screw and soldered to the PCB earth plane near R1/R2 junction to improve
power alarm operation (710384).
Parts List Amendments
IPN 220-01159-01
M850-00
T859 PCB Information
D5.3.5
Copyright TEL 31/09/98
Ref Var IPN Description Ref Var IPN Description
BRKT 012-04100-05 CAP F/THRU 1N SUPPR FLTR STUD MTG
CV1 028-02100-06 CAP TRIM 3/10P NPO TOP ADJ BLUE MUR TZ
C2 015-02270-02 CAP CER HIQ 1210 CHIP 27P 5% NPO 200V
C3 015-02270-02 CAP CER HIQ 1210 CHIP 27P 5% NPO 200V
C6 015-03100-02 CAP CER HIQ 1210 CHIP 100P 5% NPO 200V
C7 015-02220-02 CAP CER HIQ 1210 CHIP 22P 5% NPO 200V
CV8 028-02200-01 CAP TRIM 4/20P N750 TOP ADJ RED MUR TZ
*C11 LOW NOT FITTED
*C11 MID NOT FITTED
*C11 HI 015-02100-02 CAP CER HIQ 1210 CHIP 10P 5% NPO 200V
*C12 LOW NOT FITTED
*C12 MID NOT FITTED
*C12 HI 015-02100-02 CAP CER HIQ 1210 CHIP 10P 5% NPO 200V
C15 015-03100-02 CAP CER HIQ 1210 CHIP 100P 5% NPO 200V
C16 015-24470-08 CAP CER 0805 CHIP 4N7 10% X7R 50V
C17 020-07470-04 CAP ELECT RADL 4M7 25V 20% 8X13MM SOLID
C18 015-24470-08 CAP CER 0805 CHIP 4N7 10% X7R 50V
C19 020-07470-04 CAP ELECT RADL 4M7 25V 20% 8X13MM SOLID
C20 015-03100-02 CAP CER HIQ 1210 CHIP 100P 5% NPO 200V
*C22 LOW 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C22 MID 029-02220-02 CAP MICA 5MM CASE 22P 5%
*C22 HI 029-02220-02 CAP MICA 5MM CASE 22P 5%
*C23 LOW 029-02270-02 CAP MICA 5MM CASE 27P 5%
*C23 MID 029-02180-02 CAP MICA 5MM CASE 18P 5%
*C23 HI 029-02180-02 CAP MICA 5MM CASE 18P 5%
*C24 LOW 029-02220-02 CAP MICA 5MM CASE 22P 5%
*C24 MID 029-02180-02 CAP MICA 5MM CASE 18P 5%
*C24 HI 029-02180-02 CAP MICA 5MM CASE 18P 5%
*C27 LOW 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C27 MID 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C27 HI 029-02270-02 CAP MICA 5MM CASE 27P 5%
*C28 LOW 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C28 MID 029-02270-02 CAP MICA 5MM CASE 27P 5%
*C28 HI 029-02270-02 CAP MICA 5MM CASE 27P 5%
C29 029-03100-02 CAP MICA 5MM CASE 100P 5%
CV32 028-02100-03 CAP TRIM 2/10P JOHNSON 187-0106-175
*C33 LOW 015-01560-02 CAP CER HIQ 1210 CHIP 5P6 5% NPO 200V
*C33 MID NOT FITTED
*C33 HI NOT FITTED
CV34 028-02100-03 CAP TRIM 2/10P JOHNSON 187-0106-175
CV35 028-02100-03 CAP TRIM 2/10P JOHNSON 187-0106-175
*C36 LOW 029-02390-02 CAP MICA 5MM CASE 39P 5%
*C36 MID 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C36 HI 029-02270-02 CAP MICA 5MM CASE 27P 5%
C37 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C40 LOW 029-02390-02 CAP MICA 5MM CASE 39P 5%
*C40 MID 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C40 HI 029-02270-02 CAP MICA 5MM CASE 27P 5%
C41 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C42 LOW 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C42 MID 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C42 HI 029-02270-02 CAP MICA 5MM CASE 27P 5%
*C43 LOW 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C43 MID 029-02270-02 CAP MICA 5MM CASE 27P 5%
*C43 HI 029-02270-02 CAP MICA 5MM CASE 27P 5%
C45 015-03100-02 CAP CER HIQ 1210 CHIP 100P 5% NPO 200V
C46 015-03100-02 CAP CER HIQ 1210 CHIP 100P 5% NPO 200V
*C47 LOW 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C47 MID 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C47 HI 029-02270-02 CAP MICA 5MM CASE 27P 5%
*C49 LOW 029-02330-02 CAP MICA 5MM CASE 33P 5%
*C49 MID 029-02270-02 CAP MICA 5MM CASE 27P 5%
*C49 HI 029-02270-02 CAP MICA 5MM CASE 27P 5%
C50 029-03100-02 CAP MICA 5MM CASE 100P 5%
CV51 028-02100-03 CAP TRIM 2/10P JOHNSON 187-0106-175
*C52 LOW 015-01560-02 CAP CER HIQ 1210 CHIP 5P6 5% NPO 200V
*C52 MID NOT FITTED
*C52 HI NOT FITTED
C54 015-24470-08 CAP CER 0805 CHIP 4N7 10% X7R 50V
C55 020-07470-04 CAP ELECT RADL 4M7 25V 20% 8X13MM SOLID
C56 029-03100-02 CAP MICA 5MM CASE 100P 5%
CV57 028-02100-03 CAP TRIM 2/10P JOHNSON 187-0106-175
*C58 LOW 015-01560-02 CAP CER HIQ 1210 CHIP 5P6 5% NPO 200V
*C58 MID NOT FITTED
*C58 HI NOT FITTED
C60 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C61 015-24470-08 CAP CER 0805 CHIP 4N7 10% X7R 50V
*C62 LOW 015-01390-02 CAP CER HIQ 1210 CHIP 3P9 5% NPO 200V
*C62 MID 015-01330-02 CAP CER HIQ 1210 CHIP 3P3 5% NPO 200V
*C62 HI 015-01330-02 CAP CER HIQ 1210 CHIP 3P3 5% NPO 200V
*C63 LOW 029-02120-01 CAP MICA 10MM CASE 12P 5%
*C63 MID 029-02100-01 CAP MICA 10MM CASE 10P 10%
*C63 HI 029-02100-01 CAP MICA 10MM CASE 10P 10%
*C65 LOW 029-02120-01 CAP MICA 10MM CASE 12P 5%
*C65 MID 029-02100-01 CAP MICA 10MM CASE 10P 10%
*C65 HI 029-02100-01 CAP MICA 10MM CASE 10P 10%
*C66 LOW 029-01560-02 CAP MICA 5MM CASE 5P6 5%
*C66 MID 029-01470-02 CAP MICA 5MM CASE 4P7 5%
*C66 HI 029-01470-02 CAP MICA 5MM CASE 4P7 5%
C67 015-21220-01 CAP CER 0805 CHIP 2P2 +/-0.25P NPO 50V
C68 015-21220-01 CAP CER 0805 CHIP 2P2 +/-0.25P NPO 50V
C69 025-08100-02 CAP TANT BEAD 10M 10% 16V
*C70 LOW 015-21470-01 CAP CER 0805 CHIP 4P7 +/-0.25P NPO 50V
*C70 MID 015-21390-01 CAP CER 0805 CHIP 3P9 +/-0.25P NPO 50V
*C70 HI 015-21390-01 CAP CER 0805 CHIP 3P9 +/-0.25P NPO 50V
C70A 015-06100-08 CAP CER 1206 CHIP 100N 10% X7R 50V
C72 015-24470-08 CAP CER 0805 CHIP 4N7 10% X7R 50V
C73 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C76 015-24470-08 CAP CER 0805 CHIP 4N7 10% X7R 50V
C77 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C78 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C81 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C84 015-24470-08 CAP CER 0805 CHIP 4N7 10% X7R 50V
C85 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C87 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C90 015-06100-08 CAP CER 1206 CHIP 100N 10% X7R 50V
C91 025-08100-02 CAP TANT BEAD 10M 10% 16V
C92 015-25100-08 CAP CER 0805 CHIP 10N 10% X7R 50V
C93 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C96 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C97 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C98 015-24470-08 CAP CER 0805 CHIP 4N7 10% X7R 50V
C99 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C100 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C101 015-25100-08 CAP CER 0805 CHIP 10N 10% X7R 50V
C102 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C103 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C104 015-24470-08 CAP CER 0805 CHIP 4N7 10% X7R 50V
C105 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C106 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C108 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C109 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C110 015-01680-02 CAP CER HIQ 1210 CHIP 6P8 5% NPO 200V
C111 015-01560-02 CAP CER HIQ 1210 CHIP 5P6 5% NPO 200V
C112 015-01820-06 CAP CER 1210 CHIP 8P2 NPO 500V GRM42-2
C113 015-01820-06 CAP CER 1210 CHIP 8P2 NPO 500V GRM42-2
C114 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C115 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C116 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C117 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C118 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C119 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C120 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C121 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C122 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C123 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C124 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C125 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C126 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C127 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C128 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C129 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C130 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
C131 015-23150-01 CAP CER 0805 CHIP 150P 5% NPO 50V
D1 001-00013-45 (S) DIODE SCHOTTKY 1SS97/2
D2 001-00013-45 (S) DIODE SCHOTTKY 1SS97/2
D3 001-00011-60 (S) DIODE SR2607 6A/30V
D5 008-00013-32 (S) LED 3MM RED LO CURRENT NO MTG
D6 001-10000-70 (S) DIODE SMD BAV70 DUAL SW SOT-23 COM CA
D10 008-00013-35 (S) LED 3MM GREEN LO CURRENT NO MTG
D11 008-00013-32 (S) LED 3MM RED LO CURRENT NO MTG
D13 001-10000-70 (S) DIODE SMD BAV70 DUAL SWSOT-23 COM CA
D17 001-10000-70 (S) DIODE SMD BAV70 DUAL SW SOT-23 COM CA
IC1 002-10003-24 (S) IC SMD 324 QUAD OP AMP SO14
IC2 002-00014-62 (S) IC 317L 100MA REG 3 TERMINAL TO-92
IC3 002-10003-24 (S) IC SMD 324 QUAD OP AMP SO14
IC4 002-00014-62 (S) IC 317L 100MA REG 3 TERMINAL TO-92
L1 052-08330-10 COIL A/W 1T/3.0MM SMD 0.8MM WIRE
L2 052-08160-25 COIL A/W 2.5T/6.0MM HOR 0.8MM WIRE
L3 065-00010-04 BEAD FERRITE F8 4X2X5MM
L5 065-00010-04 BEAD FERRITE F8 4X2X5MM
L6 052-08160-25 COIL A/W 2.5T/6.0MM HOR 0.8MM WIRE
L7 052-08160-25 COIL A/W 2.5T/6.0MM HOR 0.8MM WIRE
L8 065-00010-04 BEAD FERRITE F8 4X2X5MM
L11 065-00010-04 BEAD FERRITE F8 4X2X5MM
L12 065-00010-04 BEAD FERRITE F8 4X2X5MM
L13 052-08160-15 COIL A/W 1.5T/6.0MM HOR 0.8MM WIRE
L14 051-00005-45 COIL IND 18MM FORMED COPPER STRIP
L15 051-00005-45 COIL IND 18MM FORMED COPPER STRIP
L16 065-00010-04 BEAD FERRITE F8 4X2X5MM
L17 065-00010-04 BEAD FERRITE F8 4X2X5MM
L18 051-00005-60 IND HAIRPIN 10MM TALL T859
L19 051-00005-39 COUPLER WIRELINE TAIT COIL DWG NO 539
L20 052-08340-20 COIL A/W 2T/4.0MM SMD 0.8MM WIRE
L21 052-08160-25 COIL A/W 2.5T/6.0MM HOR 0.8MM WIRE
L22 065-00010-04 BEAD FERRITE F8 4X2X5MM
L23 051-00005-45 COIL IND 18MM FORMED COPPER STRIP
L24 052-08340-20 COIL A/W 2T/4.0MM SMD 0.8MM WIRE
L25 052-08130-15 COIL A/W 1.5T/3.0MM HOR 0.8MM WIRE
L26 052-08130-15 COIL A/W 1.5T/3.0MM HOR 0.8MM WIRE
L27 052-08160-25 COIL A/W 2.5T/6.0MM HOR 0.8MM WIRE
L28 065-00010-04 BEAD FERRITE F8 4X2X5MM
L31 052-08160-25 COIL A/W 2.5T/6.0MM HOR 0.8MM WIRE
L32 065-00010-04 BEAD FERRITE F8 4X2X5MM
Note
LOW = 400-440MHZ
MID = 440-480MHZ
HI = 480-520MHZ
IPN 220-01159-01
D5.3.6
T859 PCB Information
M850-00
31/09/98 Copyright TEL
Ref Var IPN Description Ref Var IPN Description
L35 051-00005-60 IND HAIRPIN 10MM TALL T859
L36 065-00010-04 BEAD FERRITE F8 4X2X5MM
L37 065-00010-04 BEAD FERRITE F8 4X2X5MM
L38 051-00005-60 IND HAIRPIN 10MM TALL T859
L39 051-00005-54 COUPLER WIRELINE TAIT COIL DWG NO 554
L41 056-00021-04 IND FXD 330NH AXIAL
*L42 LOW 052-08340-10 COIL A/W 1T/4.0MM SMD 0.8MM WIRE
*L42 MID 052-08330-10 COIL A/W 1T/3.0MM SMD 0.8MM WIRE
*L42 HI 052-08330-10 COIL A/W 1T/3.0MM SMD 0.8MM WIRE
L43 052-08335-10 COIL A/W 1T/3.5MM SMD 0.8MM WIRE
*L45 LOW 052-08345-20 COIL A/W 2T/4.5MM SMD 0.8MM WIRE
*L45 MID 052-08335-20 COIL A/W 2T/3.5MM SMD 0.8MM WIRE
*L45 HI 052-08335-20 COIL A/W 2T/3.5MM SMD 0.8MM WIRE
*L46 LOW 052-08345-20 COIL A/W 2T/4.5MM SMD 0.8MM WIRE
*L46 MID 052-08340-20 COIL A/W 2T/4.0MM SMD 0.8MM WIRE
*L46 HI 052-08340-20 COIL A/W 2T/4.0MM SMD 0.8MM WIRE
*L47 LOW 052-08340-20 COIL A/W 2T/4.0MM SMD 0.8MM WIRE
*L47 MID 052-08335-20 COIL A/W 2T/3.5MM SMD 0.8MM WIRE
*L47 HI 052-08335-20 COIL A/W 2T/3.5MM SMD 0.8MM WIRE
L49 056-00021-04 IND FXD 330NH AXIAL
L51 056-00021-04 IND FXD 330NH AXIAL
L52 051-00005-53 COIL TAIT NO 553 A/W 10MM LINK T858/9
Q1 000-00022-71 (S) XSTR SD1135 NPN STUD MTG UHF PWR 5W
Q3 000-00032-79 (S) XSTR MRF654 UHF PWR 15W STUD
Q4 000-00032-67 (S) XSTR MRF648 UHF PWR 60W 6LFL
Q6 000-00032-67 (S) XSTR MRF648 UHF PWR 60W 6LFL
Q7 000-00032-67 (S) XSTR MRF648 UHF PWR 60W 6LFL
Q10 000-00020-70 (S) XSTR BS170 JFET TO-92 SMALL SIG
Q11 000-10008-17 (S) XSTR SMD BC817-25 NPN SOT-23 AF LO PWR
Q12 000-00020-70 (S) XSTR BS170 JFET TO-92 SMALL SIG
Q13 000-10008-17 (S) XSTR SMD BC817-25 NPN SOT-23 AF LO PWR
Q15 000-10008-17 (S) XSTR SMD BC817-25 NPN SOT-23 AF LO PWR
Q16 000-00030-95 (S) XSTR 2N6107 PNP TO-220 AF PWR
Q17 000-10008-57 (S) XSTR SMD BCW70/BC857-215 PNP SOT23 AF
Q18 000-00011-70 (S) XSTR BD136 PNP AF PWR TO126
Q19 000-10008-57 (S) XSTR SMD BCW70/BC857-215 PNP SOT23 AF
Q20 000-10008-17 (S) XSTR SMD BC817-25 NPN SOT-23 AF LO PWR
Q21 000-10008-17 (S) XSTR SMD BC817-25 NPN SOT-23 AF LO PWR
R1 030-53470-20 RES FILM AI 470E 5% 0.4W 4X1.6MM
R2 030-02120-20 RES FILM 12E 5% 0.4W 4X1.6MM
R3 030-53470-20 RES FILM AI 470E 5% 0.4W 4X1.6MM
*R7 LOW 030-52330-20 RES FILM AI 33E 5% 0.4W 4X1.6MM
*R7 MID 030-52330-20 RES FILM AI 33E 5% 0.4W 4X1.6MM
*R7 HI 030-52680-20 RES FILM AI 68E 5% 0.4W 4X1.6MM
R8 032-33100-00 RES M/F PWR 100E 5% 1W 10X4MM
*R11 LOW 032-32100-00 RES M/F PWR 10E 5% 1W 10X4MM
*R11 MID 032-32100-00 RES M/F PWR 10E 5% 1W 10X4MM
*R11 HI 032-32220-00 RES M/F PWR 22E 5% 1W 12X4.5MM
R30 030-53100-20 RES FILM AI 100E 5% 0.4W 4X1.6MM
R31 030-53100-20 RES FILM AI 100E 5% 0.4W 4X1.6MM
R32 030-02820-20 RES FILM 82E 5% 0.4W 4X1.6MM
R33 030-02820-20 RES FILM 82E 5% 0.4W 4X1.6MM
*R34 LOW 032-33180-01 RES M/F PWR 180E 5% 2.5W 17X5MM
*R34 MID 032-33180-01 RES M/F PWR 180E 5% 2.5W 17X5MM
*R34 HI NOT FITTED
*R35 LOW 032-33180-01 RES M/F PWR 180E 5% 2.5W 17X5MM
*R35 MID 032-33180-01 RES M/F PWR 180E 5% 2.5W 17X5MM
*R35 HI NOT FITTED
R36 036-13680-00 RES M/F 0805 CHIP 680E 5%
R37 036-14100-00 RES M/F 0805 CHIP 1K 5%
R38 036-17100-00 RES M/F 0805 CHIP 1M 5%
R42 036-15100-00 RES M/F 0805 CHIP 10K 5%
RV43 042-05470-09 RES PRESET 50K CERMET 9.5MM SQ FLAT
R44 036-14470-00 RES M/F 0805 CHIP 4K7 5%
R47 036-16100-00 RES M/F 0805 CHIP 100K 5%
RV48 042-04500-08 RES PRESET 5K CERMET 9.5MM SQ FLAT
R49 036-13680-00 RES M/F 0805 CHIP 680E 5%
R50 036-13680-00 RES M/F 0805 CHIP 680E 5%
RV52 042-04500-08 RES PRESET 5K CERMET 9.5MM SQ FLAT
R55 036-17100-00 RES M/F 0805 CHIP 1M 5%
R56 036-15100-00 RES M/F 0805 CHIP 10K 5%
RV57 042-05470-09 RES PRESET 50K CERMET 9.5MM SQ FLAT
R58 036-14470-00 RES M/F 0805 CHIP 4K7 5%
R61 036-13220-00 RES M/F 0805 CHIP 220E 5%
R62 036-14100-00 RES M/F 0805 CHIP 1K 5%
*RV63 LOW 044-04200-03 RES PRESET MULTITURN 2K 10T PNL MTG
*RV63 MID 044-04200-03 RES PRESET MULTITURN 2K 10T PNL MTG
*RV63 HI 044-04200-03 RES PRESET MULTITURN 2K 10T PNL MTG
R64 036-14470-00 RES M/F 0805 CHIP 4K7 5%
R67 036-15100-00 RES M/F 0805 CHIP 10K 5%
R68 036-14470-00 RES M/F 0805 CHIP 4K7 5%
R69 036-12100-00 RES M/F 0805 CHIP 10E 5%
RV69 042-04220-02 RES PRESET 2K CERMET 9.5MM SQ FLAT
R70 036-13220-00 RES M/F 0805 CHIP 220E 5%
R72 045-04470-01 RES NTC 4K7 20% 5MM DISC
R73 036-16220-00 RES M/F 0805 CHIP 220K 5%
RV74 042-05100-10 RES PRESET 10K CERMET 9.5MM SQ FLAT
R77 036-14220-00 RES M/F 0805 CHIP 2K2 5%
R78 036-14100-00 RES M/F 0805 CHIP 1K 5%
R80 036-13100-00 RES M/F 0805 CHIP 100E 5%
R81 036-14100-00 RES M/F 0805 CHIP 1K 5%
R82 036-14220-00 RES M/F 0805 CHIP 2K2 5%
R83 036-14100-00 RES M/F 0805 CHIP 1K 5%
R84 036-14220-00 RES M/F 0805 CHIP 2K2 5%
R85 036-14100-00 RES M/F 0805 CHIP 1K 5%
R86 036-14100-00 RES M/F 0805 CHIP 1K 5%
R87 036-15100-00 RES M/F 0805 CHIP 10K 5%
R88 036-15100-00 RES M/F 0805 CHIP 10K 5%
R89 039-02500-01 DUMMY LOAD 50E 1% 10W TO-220 NIKKOHM
R90 039-02500-01 DUMMY LOAD 50E 1% 10W TO-220 NIKKOHM
R91 039-02500-01 DUMMY LOAD 50E 1% 10W TO-220 NIKKOHM
R92 039-02500-01 DUMMY LOAD 50E 1% 10W TO-220 NIKKOHM
R93 039-02500-01 DUMMY LOAD 50E 1% 10W TO-220 NIKKOHM
R94 039-02500-01 DUMMY LOAD 50E 1% 10W TO-220 NIKKOHM
R95 036-14100-00 RES M/F 0805 CHIP 1K 5%
R96 036-14470-00 RES M/F 0805 CHIP 4K7 5%
R97 036-14100-00 RES M/F 0805 CHIP 1K 5%
R98 036-14390-00 RES M/F 0805 CHIP 3K9 5%
R99 036-14100-00 RES M/F 0805 CHIP 1K 5%
R100 036-14100-00 RES M/F 0805 CHIP 1K 5%
R101 036-12100-00 RES M/F 0805 CHIP 10E 5%
R102 036-16220-00 RES M/F 0805 CHIP 220K 5%
R103 036-15330-00 RES M/F 0805 CHIP 33K 5%
R104 036-15150-00 RES M/F 0805 CHIP 15K 5%
R105 036-16470-00 RES M/F 0805 CHIP 470K 5%
R106 036-15150-00 RES M/F 0805 CHIP 15K 5%
R107 036-14390-00 RES M/F 0805 CHIP 3K9 5%
R108 036-15100-00 RES M/F 0805 CHIP 10K 5%
R109 036-14330-00 RES M/F 0805 CHIP 3K3 5%
R110 036-16100-00 RES M/F 0805 CHIP 100K 5%
R111 036-16220-00 RES M/F 0805 CHIP 220K 5%
R112 036-16220-00 RES M/F 0805 CHIP 220K 5%
R113 036-15270-00 RES M/F 0805 CHIP 27K 5%
R115 036-16470-00 RES M/F 0805 CHIP 470K 5%
R116 045-04470-01 RES NTC 4K7 20% 5MM DISC
R117 036-15150-00 RES M/F 0805 CHIP 15K 5%
R118 036-14390-00 RES M/F 0805 CHIP 3K9 5%
R119 036-14820-00 RES M/F 0805 CHIP 8K2 5%
R120 036-14680-00 RES M/F 0805 CHIP 6K8 5%
R121 036-14100-00 RES M/F 0805 CHIP 1K 5%
R122 036-14100-00 RES M/F 0805 CHIP 1K 5%
R123 036-13470-00 RES M/F 0805 CHIP 470E 5%
R124 036-13220-00 RES M/F 0805 CHIP 220E 5%
SK1 240-02100-44 SKT COAX MINI JACK PCB MTG ANGLED
IPN 220-01159-01
D5.3.8
T859 PCB Information
M850-00
31/09/98 Copyright TEL
IPN Legend Description IPN Legend Description
T859 Mechanical & Miscellaneous Parts (220-01159-01)
012-04100-05 30 CAP F/THRU 1N SUPPR FLTR S-MTG
065-00010-20 BEAD FERRITE BALUN 4B1 PHILIPS
Placed on DC+ power cables.
070-01001-00 23 D-RANGE 15 WAY COMPL T800
070-02003-00 LED RED COMPL T800 PA
“High Rev/Low Fwd Power” LEDs - D11/D5
070-02004-00 LED GREEN COMPL T800 PA
“Supply” LED - D10
201-00030-01 WIRE T/C 7/0.2 PVC BROWN
Forward power alarm.
201-00030-03 WIRE T/C 7/0.2 PVC ORANGE
Reverse power meter.
201-00030-04 WIRE T/C 7/0.2 PVC YEL
Reverse power.
201-00030-05 WIRE T/C 7/0.2 PVC GRN
Forward power meter.
201-00030-06 WIRE T/C 7/0.2 PVC BLUE
Tx-Key.
201-00030-07 WIRE T/C 7/0.2 PVC VIOLET
Reverse power alarm.
201-00030-09 WIRE T/C 7/0.2 PVC WHITE
Temperature sense.
201-00030-10 WIRE T/C 7/0.2 PVC BLACK
Forward power.
201-00050-12 AUTO 152 RED 28/0.3 PVC
DC+ from D-range PCB.
201-00050-20 AUTO 152 BLACK 28/0.3 PVC
DC- from D-range PCB.
219-02592-00 CABLE ASSY RG223/U N TO BNC
Exciter/PA connecting cable.
219-02599-00 CABLE ASSY PA INPUT REAR DRIVE
RF input cable/connector assembly.
220-01152-00 2 PCB T858/859 DIRNL COUPLER
220-01159-01 1 PCB T859 100W PA A1C674
240-02100-06 26 SKT COAX N TYPE PNL MTG OP-TER
240-02100-17 27 SKT COAX BNC PNL JAC CRP RG316
Part of 219-02599-00 sub-assembly.
240-06010-15 25 BLOCK LATCHING 15W D RANGE
258-00010-03 31 FAN 12V 119X119X25MM TUBE AX
302-05204-00 29 BRKT A3M2314 F/THRU MTG T859
303-23117-00 44 COVER SIDE COMPL A2M2223
303-50005-00 36 CONTACT A4M2311 SPRING EARTH
308-01007-01 38 HANDLE BASE STATION SERIES II
308-13085-01 4 HSINK DIECAST T858 50W PA
308-13086-00 19 HSINK A3M2271 2MM W/LINE PA
316-06651-00 37 PNL PA NO INP DRV SER II DBL
316-85018-00 27 PIN A4M1397 COAX CONDUCTOR
319-01147-00 3 SHIELD A3M2224 WALL T859 PA
319-01148-00 35 SHIELD A3M2225 LID T859 PA
319-30033-00 13 SPACER A4M1339 UHF PA
345-00040-16 24 SCRW M3X20MM P/POZ ST BZ
349-00020-07 6 SCRW 4-40 X 5/16 P/POZ T/T BLK
349-00020-09 11 SCRW T/T 4-40X3/8 IN P/POZ BLK
349-00020-36 43 LIM)SCREW TT M3X8m PANTORX BLK
349-00020-43 34 SCRW T/T M4X12MM P/POZ BZ
349-00020-49 32 SCRW T/T M4X35MM P/POZ BZ
349-00020-50 21 SCRW T/T 4-40 * 5/8 P/POZ BLK
352-00010-29 40 NUT M4 NYLOC HEX
352-00010-35 15 NUT 8-32 UNC HEX XSTR MTG
353-00010-10 10 WSHR M3 FLAT 7MM*0.6MM ST BZ
353-00010-24 39 WSHR M4x8mm Flat
356-00010-01 18 TAG SOLDER 3MM SHORT M6132/3.2
356-00010-03 5 TAG SOLDER 3MM LONG M614/3.2
357-00010-45 33 CLAMP CABLE 4.8MM P CLIP
360-00010-41 42 BUSH SHORTY BLK
362-00010-07 7 GASKET SIL INSULATING TO-220
362-00010-13 9 BUSH INSULATING 1.1MM TOP HAT
362-00010-33 41 GROMMET LED MTG 3MM
365-00100-20 LABEL WHITE S/A 28X11MM
365-01540-00 LABEL PA TYPE APPL/SERIAL NO
369-00010-14 TIE CABLE NYLON 100*2.6MM
399-00010-51 BAG PLASTIC 75*100MM
400-00020-07 SLEEVING 2MM SIL RUBBER
400-00020-09 SLEEVING 3MM SIL RUBBER
400-00020-30 HEATSHRINK 3MM
410-00010-43 PKG T296 AMPAC REF 73-46
Note
The following electrical components are also included in the
mechanical assembly drawing to help identify certain mechani-
cal components.
000-00022-71 14 (S) XSTR SD1135 NPN STUD MTG UHF PWR
5W - Q1
000-00030-95 8 (S) XSTR 2N6107 PNP TO-220 AF PWR - Q16
000-00032-79 16 (S) XSTR MRF654 UHF PWR 15W STUD - Q3
000-00032-67 17 (S) XSTR MRF648 UHF PWR 60W 6LFL
Q4, Q6, Q7
039-02500-01 12 DUMMY LOAD 50E 1% 10W TO-220
NIKKOHM - R89/90/91/92/93/94
051-00005-39 20 COUPLER WIRELINE TAIT COIL DWG NO
539 - L19
051-00005-54 22 COUPLER WIRELINE TAIT COIL DWG NO
554 - L39
IPN 220-01159-01
M850-00
T859 PCB Information
D5.3.11
Copyright TEL 31/09/98
Device PCB Circuit Device PCB CircuitDevice PCB Circuit Device PCB Circuit
T859 Grid Reference Index (IPN 220-01159-01)
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 charac-
ters 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.
CV1 1:Q9 1-E7
C2 1:Q8 1-E7
C3 1:R8 1-E7
C6 1:S8 1-B8
C7 1:Q7 1-C8
CV8 1:R7 1-B7
C15 1:S5 1-B2
C16 1:S5 1-B3
C17 1:S6 1-C3
C18 1:T3 1-C3
C19 1:S2 1-D3
C20 1:S3 1-E3
*C22 1:Q5 1-B2
*C23 1:Q5 1-C2
*C24 1:R5 1-C1
*C27 1:Q3 1-D2
*C28 1:R3 1-E2
C29 1:P3 1-E2
CV32 1:P2 1-E1
*C33 1:P3 1-F1
CV34 1:M4 1-G2
CV35 1:M8 1-G5
*C36 1:L8 1-G5
C37 1:L8 1-H5
*C40 1:L4 1-G1
C41 1:L3 1-H1
*C42 1:K4 1-J1
*C43 1:K3 1-J1
C45 1:K4 1-J3
C46 1:K7 1-J6
*C47 1:K8 1-J5
*C49 1:K8 1-J5
C50 1:H8 1-K5
CV51 1:H8 1-L5
*C52 1:J8 1-K5
C54 1:K6 1-K3
C55 1:K6 1-K3
C56 1:H4 1-L2
CV57 1:H3 1-L1
*C58 1:J3 1-K1
C60 1:E9 1-N5
C61 1:F9 1-N5
*C62 See Note 1-P5
*C63 1:C9 1-P5
*C65 1:C9 1-Q5
*C66 1:B8 1-R5
C67 See Note 1-P4
C68 1:D7 1-Q4
C69 1:W6 2-G1
*C70 1:D6 1-Q4
C70A See Note 2-J1
C72 1:E6 1-L6
C73 1:F6 1-L6
C76 1:V10 2-B8
C77 1:V10 2-B8
C78 1:U10 2-C7
C80 1:U6 2-H8
C81 1:U2 2-F6
C84 1:V9 2-B4
C85 1:V9 2-B4
C86 1:W6 2-G3
C87 1:T2 2-E2
C90 1:V7 2-C0
C91 1:W8 2-M2
C92 1:U6 2-P2
C93 1:U6 2-N2
C96 1:U5 2-K0
C97 1:J10 1-Q8
C98 1:K10 1-R8
C99 1:U6 2-L0
C100 1:U6 2-N1
C101 1:V3 2-N0
C102 1:U8 2-Q2
C103 1:U8 2-Q1
C104 1:T6 2-R3
C105 1:T9 2-R2
C106 1:T8 2-R1
C108 1:T4 2-J8
C109 1:T4 2-H3
C110 1:E3 1-N3
C111 1:N8 1-F5
C112 1:F3 1-M1
C113 1:D3 1-P1
C114 1:V10 2-A8
C115 1:V9 2-A4
C116 1:V3 2-N1
C117 1:W5 2-P8
C118 1:V4 2-P8
C119 1:U4 2-P7
C120 1:U4 2-P6
C121 1:V4 2-P5
C122 1:V4 2-P5
C123 1:T5 2-Q7
C124 1:U5 2-Q7
C125 1:T5 2-R8
C126 1:U3 2-N6
C127 1:U3 2-M7
C128 1:V3 2-M4
C129 1:U3 2-N5
C130 1:V10 2-C8
C131 1:V9 2-C4
D1 1:F6 1-M6
D2 1:E9 1-N5
D3 1:S3 2-B1
D5 1:W9 2-C8
D6 1:U2 2-G6
D10 1:W10 2-B5
D11 1:W9 2-C5
D13 1:T2 2-E2
D17 1:V3 2-N1
2-N1
IC1 1:V6 2-E8
2-D5
2-P2
2-L1
2-G1
IC2 1:V8 2-D0
IC3 1:U4 2-H8
2-G4
2-N6
2-N5
2-F1
IC4 1:V5 2-H1
L1 1:R9 1-E7
L2 1:P9 1-D7
L3 1:P9 1-D7
L5 1:T8 1-D9
L6 1:R7 1-C8
L7 1:P7 1-B7
L8 1:P8 1-B7
L11 1:S7 1-A4
L12 1:S5 1-A3
L13 1:R5 1-A2
L14 1:Q3 1-E2
L15 1:K8 1-K5
L16 1:S4 1-C3
L17 1:S3 1-D3
L18 1:R3 1-D2
L19 1:N6 1-F3
L20 1:F3 1-M2
L21 1:P5 1-B2
L22 1:P6 1-B1
L23 1:K4 1-K2
L24 1:D3 1-P2
L25 1:M3 1-F1
L26 1:M8 1-F5
L27 1:L9 1-G5
L28 1:M9 1-G5
L31 1:M3 1-G2
L32 1:M2 1-G1
L35 1:J7 1-J6
L36 1:J6 1-J6
L37 1:J5 1-J3
L38 1:J4 1-J2
L39 1:H6 1-L4
L41 1:F9 1-N5
*L42 1:D7 1-P4
L43 1:C7 1-Q4
*L45 1:C8 1-P5
*L46 1:C9 1-Q5
*L47 1:B8 1-Q5
L49 1:F6 1-M6
L51 1:K10 1-Q9
L52 1:C7 1-P4
PL1 1:J5 2-A2
2-A1
2-A2
2-A2
2-A1
2-A9
2-A6
2-A0
2-A0
2-A1
2-A1
2-A0
2-A5
2-A3
2-A8
Q1 1:Q8 1-C7
Q3 1:Q6 1-A2
Q4 1:Q4 1-D2
Q6 1:K8 1-H5
Q7 1:K4 1-H2
Q10 1:V10 2-B8
Q11 1:U10 2-C8
Q12 1:V9 2-B5
Q13 1:U9 2-C4
Q15 1:U8 2-Q2
Q16 1:T10 2-R2
Q17 1:T5 2-R7
Q18 1:T5 2-R8
Q19 1:V4 2-P8
Q20 1:U5 2-Q7
Q21 1:V4 2-Q5
R1 1:R10 1-F7
R2 1:R9 1-F7
R3 1:R9 1-F7
R7 1:R9 1-D7
R8 1:S7 1-C8
R11 1:R6 1-A7
R30 1:G9 1-M5
R31 1:E7 1-N6
R32 1:D6 1-Q4
R33 1:D6 1-R4
*R34 See Note 1-G5
*R35 See Note 1-H5
R36 1:W9 2-C7
R37 1:W4 2-K0
R38 1:W5 2-E8
R42 1:V5 2-F8
RV43 1:V1 2-G6
R44 1:U6 2-G6
R47 1:W5 2-F8
RV48 1:W1 2-F8
R49 1:W10 2-B6
R50 1:W8 2-C5
RV52 1:T1 2-F5
R55 1:V6 2-D4
R56 1:V6 2-E4
RV57 1:S1 2-E3
R58 1:U6 2-G5
R61 1:V8 2-E0
R62 1:V8 2-D0
*RV63 1:V6 2-M2
R64 1:U6 2-N2
R67 1:W5 2-K2
R68 1:U5 2-L2
R69 1:V6 2-G1
RV69 1:V2 2-H1
R70 1:V5 2-G1
R72 1:J10 1-Q8
R73 1:U5 2-L0
RV74 1:W2 2-M0
R77 1:V6 2-P3
R78 1:U8 2-Q2
IPN 220-01159-01
D5.3.12
T859 PCB Information
M850-00
31/09/98 Copyright TEL
Device PCB Circuit Device PCB CircuitDevice PCB Circuit Device PCB Circuit
R80 1:U8 2-Q3
R81 1:W5 2-D7
R82 1:V5 2-D8
R83 1:V6 2-C4
R84 1:V6 2-C4
R85 1:T6 2-E3
R86 1:W3 2-G7
R87 1:T3 2-J8
R88 1:T4 2-H3
R89 1:N10 1-E5
R90 1:G1 1-M1
R91 1:F1 1-N1
R92 1:P10 1-D5
R93 1:D1 1-P2
R94 1:C1 1-Q2
R95 1:S1 2-C3
R96 1:U2 2-F5
R97 1:U2 2-D6
R98 1:U3 2-J9
R99 1:T4 2-H4
R100 1:U5 2-L2
R101 1:W8 2-M2
R102 1:U2 2-N8
R103 1:U2 2-N6
R104 1:U4 2-P7
R105 1:U3 2-N7
R106 1:U4 2-P7
R107 1:U4 2-P6
R108 1:W4 2-N8
R109 1:V3 2-P9
R110 1:U3 2-M5
R111 1:U3 2-M4
R112 1:U2 2-M4
R113 1:U3 2-N4
R115 1:V3 2-N5
R116 1:V3 2-M5
R117 1:V3 2-P5
R118 1:V4 2-P4
R119 1:U5 2-Q7
R120 1:U5 2-Q8
R121 1:T5 2-Q8
R122 1:V5 2-M6
R123 1:W7 2-M3
R124 1:W7 2-M2
SK1 1:R10 1-G7
Note:
*C62 & C67 are mounted on the
Directional Coupler PCB (220-
01152-00).
C70A with the grid references of:
PCB 1:V5 & Circuit 2-J1 is incor-
rectly shown in the artwork as C70.
*R34 & *R35 are mounted across
the base and emitter of Q6.
M850-00
Introduction
E1.1
Copyright TEL 31/09/98
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 there-
fore 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 refer-
ence (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:
The mechanical and miscellaneous section lists the variant and common parts in IPN order.
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
Internal Part Number -
order the component
b
y
this number
description -
gives a brief description
of the component
E1.2
Introduction
M850-00
31/09/98 Copyright TEL
Parts List Amendments
At the front of the parts list is the Parts List Amendments box (an example of which is shown
below). This box contains a list of component changes which took place after the parts list and dia-
grams in this section were compiled. These changes (e.g. value changes, added/deleted compo-
nents, etc.) are listed by circuit reference in alphanumeric order and supersede the information
given in the parts list or diagrams. Components without circuit references are listed in IPN order.
The number in brackets at the end of each entry refers to the Tait internal Change Order document.
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).
Parts List Amendments
R306 Changed from 180Ωto 560Ω(036-13560-00) to increase sensitivity (71003).
circuit reference
or IPN description
of change
IPN of new
component Change Order
number
IPN 220-01145-02
M850-00
T850 VCO PCB Information
E2.3
Copyright TEL 31/09/98
T850 VCO Parts List (IPN 220-01145-02)
How To Use This Parts List
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: the circuit reference, variant (if applicable), IPN and description. A letter in the variant column
indicates that this is a variant component which is fitted only to the product type listed. Static sensitive devices are indicated by an (S)
at the start of the description column.
The miscellaneous and mechanical parts are listed in IPN order at the end of the parts list.
The Parts List Amendments box below lists component changes that took place after the parts list and diagrams in this section were
compiled. These changes (e.g. value changes, added/deleted components, etc.) are listed by circuit reference in alphanumeric order
and supersede the information given in the parts list or diagrams. Components without circuit references are listed in IPN order.
Parts List Amendments
*C1, C4, *C7
*C8, C10, C11
Rx mid/low/high: component values unchanged but tolerances changed to ±0.1p to ensure consistent low
noise performance from oscillators and to improve selectivity (710286, 710287, 710288).
C6 A length of 0.5mm tinned copper wire was soldered from the PCB via at the rear of the trimcap to the trimcap
body to improve selectivity and signal-to-noise ratio (9/98).
R6 Rx low: changed from 120Ω (IPN 036-13120-00) to 82Ω (IPN 036-12820-00) to reduce the VCO
noise floor (97/04-7078).
Rx mid/high: changed from 82Ω (IPN 036-12820-00) to 68Ω (IPN 036-12680-00) to ensure consistent
low noise performance from oscillators and to improve selectivity (710286, 710287).
IPN 220-01145-02
E2.4
T850 VCO PCB Information
M850-00
31/09/98 Copyright TEL
Ref Var IPN Description Ref Var IPN Description
*C1 A 015-21150-01 CAP CER 0805 CHIP 1P5 +/-0.25P NPO 50V
*C1 B 015-21180-01 CAP CER 0805 CHIP 1P8 +/-0.25 NPO 50V
*C1 C 015-21220-01 CAP CER 0805 CHIP 2P2 +/-0.25P NPO 50V
*C1 D 015-21220-01 CAP CER 0805 CHIP 2P2 +/-0.25P NPO 50V
C2 025-08100-02 CAP TANT BEAD 10M 10% 16V
C3 015-24100-08 CAP CER 0805 CHIP 1N 10% X7R 50V
C4 015-21100-01 CAP CER 0805 CHIP 1PO +/-0.25P NPO 50V
C5 015-06100-08 CAP CER 1206 CHIP 100N 10% X7R 50V
C6 028-02110-00 LH)CAPTRM1.2-11P10T PISTONPREC
*C7 A 015-21680-01 CAP CER 0805 CHIP 6P8 +/-0.25P NPO 50V
*C7 B 015-21470-01 CAP CER 0805 CHIP 4P7 +/-0.25P NPO 50V
*C7 C 015-21680-01 CAP CER 0805 CHIP 6P8 +/-0.25P NPO 50V
*C7 D 015-21820-01 CAP CER 0805 CHIP 8P2 +/-0.25P NPO 50V
*C8 A 015-22270-01 CAP CER 0805 CHIP 27P 5% NPO 50V
*C8 B 015-22270-01 CAP CER 0805 CHIP 27P 5% NPO 50V
*C8 C 015-22330-01 CAP CER 0805 CHIP 33P 5% NPO 50V
*C8 D 015-22330-01 CAP CER 0805 CHIP 33P 5% NPO 50V
C9 015-23120-01 CAP CER 0805 CHIP 120P 5% NPO 50V
C10 015-21180-01 CAP CER 0805 CHIP 1P8 +/-0.25 NPO 50V
C11 015-21330-01 CAP CER 0805 CHIP 3P3 +/-0.25P NPO 50V
C12 015-24100-08 CAP CER 0805 CHIP 1N 10% X7R 50V
C13 015-24100-08 CAP CER 0805 CHIP 1N 10% X7R 50V
C14 015-23120-01 CAP CER 0805 CHIP 120P 5% NPO 50V
C16 015-23120-01 CAP CER 0805 CHIP 120P 5% NPO 50V
C17 015-23120-01 CAP CER 0805 CHIP 120P 5% NPO 50V
C18 015-22220-01 CAP CER 0805 CHIP 22P 5% NPO 50V
C19 015-05470-08 CAP CER 1206 CHIP 47N 10% X7R 50V
C21 015-23120-01 CAP CER 0805 CHIP 120P 5% NPO 50V
C22 015-23120-01 CAP CER 0805 CHIP 120P 5% NPO 50V
C23 015-21820-01 CAP CER 0805 CHIP 8P2 +/-0.25P NPO 50V
C24 015-05470-08 CAP CER 1206 CHIP 47N 10% X7R 50V
D1 001-00012-63 (S) DIODE VARICAP BB809
D2 001-00012-63 (S) DIODE VARICAP BB809
L1 056-00021-60 IND FXD 330NH 6.6X2.7MM AXIAL NON MAGNET
L2 056-00021-60 IND FXD 330NH 6.6X2.7MM AXIAL NON MAGNET
L3 056-00021-60 IND FXD 330NH 6.6X2.7MM AXIAL NON MAGNET
L4 056-00021-60 IND FXD 330NH 6.6X2.7MM AXIAL NON MAGNET
L5 052-08135-35 COIL A/W 3.5T/3.5MM HOR 0.8MM WIRE
PL2 240-00025-36 PLUG 32WAY 1ROW PC MTG HARWIN
PL3 240-00025-36 PLUG 32WAY 1ROW PC MTG HARWIN
PL4 240-00025-36 PLUG 32WAY 1ROW PC MTG HARWIN
PL5 240-00025-36 PLUG 32WAY 1ROW PC MTG HARWIN
Q1 000-10057-10 (S) XSTR SMD MMBR571 NPN SOT-23 UHF LO PW
Q2 000-10057-10 (S) XSTR SMD MMBR571 NPN SOT-23 UHF LO PW
Q3 000-10057-10 (S) XSTR SMD MMBR571 NPN SOT-23 UHF LO PW
Q4 000-10008-57 (S) XSTR SMD BCW70/BC857-215 PNP SOT23AF
Q5 000-00032-47 (S) XSTR MRF559 NPN XPACK UHF PWR 0.5W
R1 036-14390-00 RES M/F 0805 CHIP 3K9 5%
R2 036-14100-00 RES M/F 0805 CHIP 1K 5%
R3 036-13100-00 RES M/F 0805 CHIP 100E 5%
R4 036-12220-00 RES M/F 0805 CHIP 22E 5%
R5 036-12270-00 RES M/F 0805 CHIP 27E 5%
*R6 A 036-12820-00 RES M/F 0805 CHIP 82E 5%
*R6 B 036-12820-00 RES M/F 0805 CHIP 82E 5%
*R6 C 036-12820-00 RES M/F 0805 CHIP 82E 5%
*R6 D 036-13120-00 RES M/F 0805 CHIP 120E 5%
R7 036-14100-00 RES M/F 0805 CHIP 1K 5%
R8 036-12220-00 RES M/F 0805 CHIP 22E 5%
R9 036-14270-00 RES M/F 0805 CHIP 2K7 5%
R10 036-14120-00 RES M/F 0805 CHIP 1K2 5%
R11 036-13150-00 RES M/F 0805 CHIP 150E 5%
R12 036-12100-00 RES M/F 0805 CHIP 10E 5%
R13 036-12560-00 RES M/F 0805 CHIP 56E 5%
R14 036-13330-00 RES M/F 0805 CHIP 330E 5%
R15 036-12100-00 RES M/F 0805 CHIP 10E 5%
R17 036-14680-00 RES M/F 0805 CHIP 6K8 5%
R18 036-14180-00 RES M/F 0805 CHIP 1K8 5%
R19 036-14100-00 RES M/F 0805 CHIP 1K 5%
R20 036-12180-00 RES M/F 0805 CHIP 18E 5%
R21 036-13330-00 RES M/F 0805 CHIP 330E 5%
R22 036-12100-00 RES M/F 0805 CHIP 10E 5%
*TL1 A 051-00005-43 RESNTR TAIT NO 543 480-520MHZ T855/7
*TL1 B 051-00005-42 RESNTR TAIT NO 542 435-480MHZ T855/7
*TL1 C 051-00005-41 RESNTR TAIT NO 541 395-440MHZ T855/7
*TL1 D 051-00005-40 RESNTR TAIT NO 540 355-395MHZ T855/7
065-00010-13 BEAD FERRITE 7D 1.9*0.9*3.8MM STACK POLE
Place On Lead Of L4, Secure With Loctite 454-16 Gel
220-01145-00 PCB T855/856/857 VCO
240-00026-32 PLUG 32WAY 1ROW PC MTG HARWIN
345-00040-10 SCREW M3*6MM PAN POZI ST BZ
350-00016-42 SPACER 5MM HI 8MM X M3 STUD 2.5MM X M3
353-00010-10 WASHER M3 FLAT 7MM*0.6MM ST BZ
353-00010-13 WASHER M3 SHAKEPROOF INT BZ
Variant
Code Description T855
(MHz) T856/857
(MHz)
ATx Hi
g
h - 480-500
B Tx Mid/Rx Hi
g
h 480-520 440-480
C Tx Low/Rx Mid 440-480 400-440
D Rx Low 400-440 -
M850-00
FI
Copyright TEL 31/09/98
Part F Installation
This part of the manual is divided into the sections listed below. These sections give a
brief description of the basic rack mounting and wiring procedures for the T855
receiver, T856 transmitter, T857 exciter and T858/859 power amplifiers.
Section Title Page
1
1.1
1.2
1.3
1.4
T855 Installation
Rack Mounting
Rack Wiring
Power Supply
Reverse Polarity Protection
1.1
1.1
1.1
1.2
1.2
2
2.1
2.2
2.3
2.4
T856/857 Installation
Rack Mounting
Rack Wiring
Power Supply
Reverse Polarity Protection
2.1
2.1
2.1
2.2
2.2
3
3.1
3.2
3.3
3.4
T858/859 Installation
Rack Mounting
Rack Wiring
Power Supply
Reverse Polarity Protection
3.1
3.1
3.1
3.2
3.2
Figure Title Page
1.1
1.2
1.3
1.4
T800-41-0002 Double Guide Kit
T855 Chassis Connectors
T855 D-Range 1 Wiring - Rear View
T855 D-Range 2 Wiring - Rear View (T800-03-0000 Kit)
1.1
1.1
1.1
1.1
2.1
2.2
2.3
2.4
T800-41-0002 Double Guide Kit
T856/857 Chassis Connectors
T856/857 D-Range 1 Wiring - Rear View
T856/857 D-Range 2 Wiring - Rear View (T800-03-0000 Kit)
2.1
2.1
2.1
2.1
M850-00
GI
Copyright TEL 31/09/98
Part G System Configurations
This part of the manual is divided into the sections listed below. These sections provide
some brief information on basic system types and how to configure T850 Series II equip-
ment for use in them.
Section Title Page
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.7.1
1.7.2
T855 Link Selectable Features
Flat Or De-emphasised Response
Mute Relay Control
Mute Selection
Receiver Disable
CTCSS Configuration
300Hz High Pass Filter
Audio Processor Links
General
Audio Processor Linking Details For CTCSS
1.1
1.1
1.1
1.1
1.1
1.1
1.2
1.2
1.2
1.3
2
2.1
2.1.1
2.1.2
2.2
2.3
2.4
2.5
2.6
2.7
T856/857 Optional Features
Audio Processor
Link Details
Typical Options
Line Transformer Inputs And Outputs
Opto Key
Relay Driver
Local Microphone
Keying With Option PCBs
Transmit Key Time
2.1
2.1
2.1
2.2
2.2
2.2
2.2
2.3
2.3
2.3
3 Talk Through Repeater 3.1
4
4.1
4.2
Line Controlled Base Without Talk Through
General
Transmitter Tail Timer
4.1
4.1
4.2
5 DC Line Keying 5.1
GII
M850-00
31/09/98 Copyright TEL
Figure Title Page
3.1
4.1
4.2
4.3
4.4
5.1
5.2
5.3
5.4
Talk Through Repeater
Basic Configuration
Remote Line Controlled Base Station
4-Wire to 2-Wire Converter
Receiver Disable Time vs Tail Time
DC Loop Keying With Common Earth
Isolated Constant Current Loop Current Detector
Isolated Loop Current Switch
Typical System
3.1
4.1
4.1
4.2
4.2
5.1
5.1
5.2
5.2
M850-00
T855 Link Selectable Features
G1.1
Copyright TEL 31/09/98
1 T855 Link Selectable Features
1.1 Flat Or De-emphasised Response
The links of PL210 and PL220 may be set to give either a flat or de-emphasised audio
frequency response (refer to Section 1.7 for further details).
1.2 Mute Relay Control
A relay with undedicated contacts (RL210) is available in the audio processor circuit
block for various switching applications. A link (PL270) is available for control of the
relay from the mute circuit (refer to Section 1.7). This makes the relay suitable for con-
trolling the keying of a transmitter in repeater applications.
1.3 Mute Selection
Link PL250 may be set to operate with noise mute or carrier mute (refer to Section 1.7).
1.4 Receiver Disable
The receiver audio can be disabled by pulling the RX-DISABLE line low. When the cir-
cuit is pulled from low to high, the receiver audio cannot be re-enabled until the disable
timer completes its operation. This time is variable from 15ms to 200ms by adjusting
RV220 in the audio processor section.
If required, the operation of this circuit can be disabled by changing the link of PL260
from 1-2 to 2-3.
Typical applications of the receiver disable are as an extra mute for signalling purposes,
or when the T855 is configured as a line controlled base station (refer to Section 4).
1.5 CTCSS Configuration
Links PL230 & PL240 select various CTCSS options (refer to Section 1.7.2).
G1.2
T855 Link Selectable Features
M850-00
31/09/98 Copyright TEL
1.6 300Hz High Pass Filter
Link PL240 also allows the insertion of this filter to improve hum and noise perform-
ance.
1.7 Audio Processor Links
The tables in this section are the same as those in Section 3.5 in Part B. They have been
repeated here for ease of reference.
1.7.1 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 [ ].
Plug Linka
a. The letters in this column and in the table in Section 1.7.2 below refer to the identification
letters screen printed onto the PCB beside each set of pins.
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
PL230* 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
PL240b
b. Refer to Section 1.7.2 for further details.
1 - 2
[2 - 3]
or
3 - 4
4 - 5
G - H
[H - J]
or
J - K
K - L
bypass high pass filter
300Hz high pass filter in circuit
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
M850-00
T855 Link Selectable Features
G1.3
Copyright TEL 31/09/98
1.7.2 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.
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 & noise -55dB
• received CTCSS tone - tone and speech transmitted down 600 ohm line
+ speech to line output - audio bandwidth 10Hz to 3kHz
- hum & noise -45dB
• high pass filtered speech - 400Hz to 3kHz
+ internal CTCSS detection - hum & 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 600 ohm 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 disa-
bled by removing R808.
Note 2:
External CTCSS units can connect in series with the audio chain via
AUDIO-1 and AUDIO-2.
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
M850-00
T856/857 Optional Features
G2.1
Copyright TEL 31/09/98
2 T856/857 Optional Features
2.1 Audio Processor
The T856 and T857 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. The factory settings are shown in brackets [ ].
Plug Linka
a. The letters in this column and in the table in Section 2.1.2 below refer to the identification
letters screen printed onto the PCB beside each pair of pins.
Function
PL205
1-2
[3-4]
5-6
A
B
C
not connected
microphone pre-amp. output to compressor input
microphone pre-amp. output to multiplexer input
PL210
[1-2]
3-4
5-6
L
M
N
multiplexer output to pre-emphasis input
multiplexer output to limiter input
multiplexer output to compressor input
PL215
1-2
[3-4]
5-6
7-8
9-10
G
H
I
J
K
not connected
compressor output to multiplexer input
compressor output to limiter input
compressor output to pre-emphasis input
not connected
PL220
1-2
[3-4]
5-6
D
E
F
pre-emphasis output to multiplexer input
pre-emphasis output to limiter input
not connected
G2.2
T856/857 Optional Features
M850-00
31/09/98 Copyright TEL
2.1.2 Typical Options
2.2 Line Transformer Inputs And Outputs
The line transformer (T210) is designed to provide a balanced interface to 600 ohm lines.
For normal operation the two centre connections (LINE I/P 2, LINE I/P 3) are shorted
together, and the 600 ohm line is connected between LINE I/P 1 and LINE I/P 4.
The secondary winding of the transformer is connected via 1k 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 (refer to Section 2 in Part I for more details).
2.3 Opto Key
The keying circuitry may be completely isolated from the rest of the system by means of
the optocoupler (IC250) connected between pins 11 and 12 of the D-range connector. A
constant current source (Q270) allows keying voltages between 6 and 50V.
2.4 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 out-
put is available on pin 9 of the T800-03-0000 auxiliary D-range connector (D-range 2).
PL205 PL210 PL215 PL220
microphone pre-amp. compressed
and pre-emphasised;
line input pre-emphasised
(standard set-up)
[3-4]
B
[1-2]
L
[3-4]
H
[3-4]
E
microphone pre-amp. compressed
and pre-emphasised;
line input unprocessed
3-4
B
3-4
M
7-8
J
1-2
D
line and microphone compressed
and pre-emphasised
5-6
C
5-6
N
7-8
J
3-4
E
microphone pre-amp. compressed;
line and microphone flat response
3-4
B
3-4
M
3-4
H
5-6
F
M850-00
T856/857 Optional Features
G2.3
Copyright TEL 31/09/98
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 & options connections drawing in Section 6 of 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.
*In this configuration the standby spurious emissions should be <-65dBm.
Transmit Key Time SL501
standard - 30ms (approx.) not linked
short* - <5ms linked
M850-00
Talk Through Repeater
G3.1
Copyright TEL 31/09/98
3 Talk Through Repeater
In this configuration the receiver directly keys the transmitter when the signal is
received. The demodulated audio is fed via 600 ohm lines to the transmitter to modu-
late the carrier. The receiver and transmitter operate simultaneously and must therefore
be on different frequencies. The minimum frequency separation depends on the
duplexer used.
Figure 3.1 Talk Through Repeater
Duplexer
Receiver Transmitter
Monitor
Speaker Local
Microphone
13.8V
Supply
+
-
Tx Key Out
Line Out Line In
Tx Key In
Antenna
Typical line level -15dBm
Monitor
Out Mic.
In
Transmit PortReceive Port
RF In
'N' Socket RF Out
'N' Socket
M850-00
Line Controlled Base Without Talk Through
G4.1
Copyright TEL 31/09/98
4 Line Controlled Base Without Talk
Through
4.1 General
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 aerial are passed to the receiver and the demodulated output
is fed via 600 ohm 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).
Figure 4.1 Basic Configuration
Figure 4.2 Remote Line Controlled Base Station
RF Out Coax
Relay
DC
Key
Logic
Tx
Enable
DC Relay
Control
RF In
Tx Rx
Antenna
Rx Disable
Tx AF
RF Out Coax
Relay
RF In
Tx Rx
Antenna
Hybrid
Rx AF
Remote
Control
Microphone
Speaker
PTT
G4.2
Line Controlled Base Without Talk Through
M850-00
31/09/98 Copyright TEL
Figure 4.3 4-Wire to 2-Wire Converter
4.2 Transmitter Tail Timer
If the transmitter has the tail timer enabled:
• the receiver disable timer must be set so that tRx/Dis > tTx/Tail;
Figure 4.4 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).
2-Wire Line
C1
C2
TransmitterReceiver
RV1 approx. 2µ
Hybrid Balance
1k
Rx Disable Time
No Tx or Rx
Tail Time
On
Tx Reg.
Rx Off
Tx Enable
& Rx Disable
M850-00
DC Line Keying
G5.1
Copyright TEL 31/09/98
5 DC Line Keying
Where the transmitter and receiver are separated by only a short distance and DC isola-
tion is not required, DC loop keying may be employed.
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 5.1).
Figure 5.1 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 5.2, Figure 5.3 & Figure 5.4).
Figure 5.2 Isolated Constant Current Loop Current Detector
(Opto-key input on T856 & T857)
Pin 14
Pin 12
Pin 1 (PL100)
Pin 3
Tx Key Pin 13
Pin 1
Pin 2
Pin 3
Pin 4
Pin 12
Pin 11
Pin 15
Pin 14
C266
8
4
3
5
6
27
1
Audio
Out T210
C268
RL210
Pin 13
C202
1
5
6
4
3
7
2
8
T210
C201
Pin 4 (PL100)
Audio
Processor
Keying Logic
Pin 15
Earth
Pin 2
+
-
Opto Key
+9V
R657
D620
Optional:
Relay contact or
Q270 collector
can be used.
Receiver Transmitter
Short Line
Q270
M850-00
HI
Copyright TEL 31/09/98
Part H T800 Ancillary Equipment
This Part of the manual features a brief description of the major ancillaries that may be
used with T800 Series II equipment. For a comprehensive list of available ancillary
equipment, please contact your nearest Tait Dealer or Customer Service Organisation.
Section Page
Programming Kits 1
General Ancillaries 2
Paging 5
External Frequency Reference 6
Rack Frames 7
Rack Frame Guides 9
Rack Frame PCBs 11
Rack Frame Ancillaries 12
Front Panels 13
Power Supplies 14
M850-00
T800 Ancillary Equipment
H1
Copyright TEL 31/09/98
T800 Ancillary Equipment
Programming Kits
T800-01-0000
The T800-01-0000 kit is used for programming T800 Series II 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 3 " floppy discs
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 Series II rack frame speaker panel or backplane PCB, thus enabling
T800 Series II 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 Series II 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.
H2
T800 Ancillary Equipment
M850-00
31/09/98 Copyright TEL
General Ancillaries
T004-72 RF Coaxial Relay
The T004-72 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 Series II transmitter/exciter 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 cus-
tom 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.
Refer to the T800 Ancillary Equipment Service Manual for more information.
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 & washers. Although originally a T800 Series I ancillary, it can
be used in T800 Series II products for special applications requiring custom internal wir-
ing.
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 applica-
tions and where external channel control is required. Refer to Figure 1.4 and Figure 2.4
in Part F for the T800-03-0000 pin connections.
M850-00
T800 Ancillary Equipment
H3
Copyright TEL 31/09/98
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.
Refer to the appropriate service manual.
T800-08-0000 Ancillary Chassis
The T800-08-0000 is a general purpose chassis designed to be mechanically and elec-
tronically compatible with a T800 Series II rack frame. It comprises the following items:
• top and bottom chassis rails
•side panels
• rear panel
• PCB mounting brackets
• double D-range plug assembly (for mounting directly on a PCB)
• T800 Series II blank front panel complete with handle.
Custom designed PCBs for special applications can be mounted in several positions
inside the chassis to provide a convenient, plug-in module that interfaces directly with a
T800 Series II rack frame.
Refer to Application Note AN-RSD-002 for further information.
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 Series II 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 pur-
poses.
T800-80 Local Microphone
A 600Ω microphone complete with 300mm cord terminated in a ¼" stereo plug.
H4
T800 Ancillary Equipment
M850-00
31/09/98 Copyright TEL
T818-01-0000 Receiver/Transmitter Monitor
The T818-01-0000 (formerly T318-02) is designed to monitor the basic operational func-
tions of one T800 receiver and transmitter. The meter and selector switches for monitor-
ing the required functions are mounted on the front panel, as is the monitor speaker
which is driven by a built-in amplifier. An optional mute circuit may be used to silence
the audio when no carrier is present.
Refer to M318-02.
M850-00
T800 Ancillary Equipment
H5
Copyright TEL 31/09/98
Paging
T800-30-0000 & T800-30-0002 DFSK Modulators
The T800-30-0000 (formerly T800-30) and T800-30-0002 (formerly T800-35) are DFSK
modulators for T800 Series II 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 trans-
mission. The T800-30-0000 and T800-30-0002 are not designed for use with 66 to 88MHz
equipment.
Refer to the T800 Ancillary Equipment Service Manual for more information.
T800-32-0000 & T800-32-0010 DFSK Modulators
The T800-32-0000 and T800-32-0010 are DFSK modulator PCBs which can be fitted to
T800 Series II transmitters to enable them to function as low-speed paging transmitters.
These new PCBs have been specifically designed for Series II transmitters and will be
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.
H6
T800 Ancillary Equipment
M850-00
31/09/98 Copyright TEL
External Frequency Reference
T800-06-0000 External Frequency Reference Kit
The T800-06-0000 kit provides an additional D-range plug/PCB assembly which incor-
porates a miniature RF connector to carry an externally generated 12.8MHz reference
signal into a T800 Series II 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 (e.g. T800-52-0000) to connect to a T800 Series II 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 Series II base station can be locked. The master
standard within the T801-00 is primarily intended to be rubidium, although high qual-
ity 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 Series II base station.
Refer to M801-00.
T801-10 OCXO Module
The T801-10 OCXO module provides a high stability frequency source to which the syn-
thesiser within a T800 Series II base station can be locked. This will provide T800 Series
II 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 Series II
transmitters to be referenced to the source oscillator.
Refer to M801-10.
M850-00
T800 Ancillary Equipment
H7
Copyright TEL 31/09/98
Rack Frames
T800-22-0000
The T800-22-0000 is a standard 5U high rack frame complete with wiring loom which is
designed to accommodate one 25, 50 or 100W base station or repeater. It comes fully
assembled with the following items:
T800-15-0000 speaker panel with programming port
T800-40-0001 blank panel (x2)
T800-41-0002 double module guide
T800-44-0000 power supply guide
T800-45-0000 PA guide
T800-50-0000 standard rack frame backplane PCB.
Refer to the T800 Ancillary Equipment Service Manual for more information.
T800-22-0001
The T800-22-0001 is the same as the T800-22-0000, but is supplied packed flat in disas-
sembled form for ease of transport. The wiring loom and backplane PCB are, however,
supplied complete and ready for installation.
T800-22-0002
The T800-22-0002 is a standard 5U high rack frame without wiring loom which is
designed to accommodate one 25, 50 or 100W base station or repeater. It comes fully
assembled with the following items:
T800-15-0000 speaker panel with programming port
T800-40-0001 blank panel (x2)
T800-41-0002 double module guide
T800-44-0000 power supply guide
T800-45-0000 PA guide.
T800-22-0003
The T800-22-0003 is the same as the T800-22-0002, but is supplied packed flat in disas-
sembled form for ease of transport.
T800-22-0004
The T800-22-0004 is a standard 5U high rack frame without wiring loom, guides or front
panels which comes fully assembled.
H8
T800 Ancillary Equipment
M850-00
31/09/98 Copyright TEL
T800-22-0005
The T800-22-0005 is the same as the T800-22-0004, but is supplied packed flat in disas-
sembled form for ease of transport.
T800-23-0000 Slimline Repeater Mounting Kit
The T800-23-0000 Slimline Repeater kit enables one T800 Series II receiver and one T800
Series II transmitter to be mounted horizontally side-by-side in a standard 483mm rack
frame. The kit contains a front panel complete with speaker, programming port, an
options tray (for mounting a power supply, duplexer, etc.), and a wiring loom to connect
the two T800 modules to the terminal blocks mounted on the rear of the options tray.
The T800-23-0010 mains power supply (available separately) is designed for use with
the T800-23-0000. The rack height of the assembled unit is 2U.
T800-23-0001 Slimline Repeater Mounting Kit
The T800-23-0001 Slimline Repeater kit is the same as the T800-23-0000, but is supplied
with a T800-23-0010 power supply and no options tray.
M850-00
T800 Ancillary Equipment
H9
Copyright TEL 31/09/98
Rack Frame Guides
T800-41-0001
The T800-41-0001 rack frame guide is designed to fit into a T800 Series II rack frame and
will accept one T800 Series II module (except for power supplies and power amplifiers
which must use their own guides). It is supplied disassembled and comprises a top and
bottom rail, a rear panel, two D-range sockets and mounting screws.
T800-41-0002
The T800-41-0002 rack frame guide is designed to fit into a T800 Series II rack frame and
will accept two T800 Series II modules (except for power supplies and power amplifiers
which must use their own guides). It is supplied disassembled and comprises two top
and bottom rails, a double width rear panel, four D-range sockets and mounting screws.
T800-41-0003
The T800-41-0003 rack frame guide is designed to fit into a T800 Series II rack frame and
will accept three T800 Series II modules (except for power supplies and power amplifi-
ers which must use their own guides). It is supplied disassembled and comprises three
top and bottom rails, a triple width rear panel, six D-range sockets and mounting
screws.
T800-41-0004
The T800-41-0004 rack frame guide is designed to fit into a T800 Series II rack frame and
will accept four T800 Series II modules (except for power supplies and power amplifiers
which must use their own guides). It is supplied disassembled and comprises four top
and bottom rails, a four-module wide rear panel, eight D-range sockets and mounting
screws.
T800-42-0000
The T800-42-0000 rack frame guide will allow a duplexer to be mounted in a T800 Series
II rack frame. It occupies a single module space and comprises a folded metal chassis,
mounting brackets and screws.
H10
T800 Ancillary Equipment
M850-00
31/09/98 Copyright TEL
T800-42-0001
The T800-42-0001 rack frame guide is the same as the T800-42-0000 described above, but
with the addition of a duplexer front panel.
T800-42-0002
The T800-42-0002 rack frame guide is the same as the T800-42-0000 described above, but
with the addition of a blank front panel.
T800-43-0000
The T800-43-0000 rack frame guide is designed to fit into a T800 Series II rack frame and
will accept one T300 or T1500 Series module (e.g. T318-02, T1511). It is supplied disas-
sembled and comprises a top and bottom rail, two T300 D-range socket boxes and
mounting screws. The T800-43-0000 is not compatible with the T800 Series II rack frame
backplane PCB. Consult your nearest Tait Dealer or Customer Service Organisation for
more details about T300/T1500 Series compatibility with T800 Series II rack frames.
T800-43-0001
The T800-43-0001 is the same as the T800-43-0000 but is supplied with only one D-range
socket box.
T800-44-0000
The T800-44-0000 rack frame guide is designed to fit into a T800 Series II rack frame and
will accept one T800 Series II power supply. It comprises a top and bottom rail and
mounting screws.
T800-45-0000
The T800-45-0000 rack frame guide is designed to fit into a T800 Series II rack frame and
will accept one T800 Series II 50W power amplifier. It comprises a top guide stop, a bot-
tom guide rail and mounting screws.
T800-45-0001
The T800-45-0001 rack frame guide is designed to fit into a T800 Series II rack frame and
will accept one T800 Series II 100W power amplifier. It comprises a top guide stop, a
bottom guide rail, extra mounting brackets for the double width front panel and mount-
ing screws.
M850-00
T800 Ancillary Equipment
H11
Copyright TEL 31/09/98
Rack Frame PCBs
T800-50-0000
The T800-50-0000 backplane PCB is designed to allow a T800-22-0000 rack frame to be
easily configured as either a base station or repeater. The PCB mounts across the rear
panel of the T800-41-0002 double module rack frame guide, enabling a T800 Series II
receiver and exciter/transmitter to plug directly into the D-range sockets provided on
the inner side of the PCB (both D-range 1 and D-range 2 are provided for). The other
side of the PCB features a programming port, D-range connectors which provide all
module inputs and outputs, and two DIP switches for external channel selection.
Refer to the T800 Ancillary Equipment Service Manual for more information.
T800-50-0001
The T800-50-0001 is similar in function and design to the T800-50-0000, but is designed
to allow connection of TA087 or TA387 channel select panels. It has one 25-way OEM
D-range connector, but will not accept personality PCBs.
T800-52-0000
The T800-52-0000 is similar in function and design to the T800-50-0000, but is designed
for use in Quasi-Sync applications. The PCB has an external reference D-range fitted
and has provision for connecting TA087 or TA387 channel change/speaker panels and a
TA136 alarm panel. The T800-52-0000 will not accept personality PCBs.
T800-60-0000
The T800-60-0000 personality PCB is designed to plug into the two 25-way D-range
sockets on the T800-50-0000 backplane PCB. The T800-60-0000 provides channel selec-
tion for both receiver and exciter/transmitter via a single DIP switch, remote channel
selection and alarm monitoring via Micromatch sockets, and receiver and exciter/trans-
mitter inputs and outputs via a 25-way D-range socket.
H12
T800 Ancillary Equipment
M850-00
31/09/98 Copyright TEL
Rack Frame Ancillaries
T800-13-0000 Extender Rail
The T800-13-0000 extender rail allows a T800 Series II receiver, exciter or transmitter to
be operated out of the rack frame with the covers off for tuning purposes. It is fitted
with two 15-way D-range connectors.
T800-14-0000 Extender Rail
The T800-14-0000 extender rail is the same as the T800-13-0000, but is intended for
equipment using an external reference (e.g. Quasi-Sync). It thus has one 15-way
D-range, and one 11-way D-range incorporating a miniature RF connector.
T800-19-0000 Rack Mounting Fan
The T800-19-0000 fan is designed to fit into the base of any standard 483mm rack frame
without affecting its ability to house seven modules. The two mounting rails are
secured to the rack frame side panels, and the fan is screwed onto the rails under the
required module. The kit contains all mounting hardware.
T800-19-0010 Rack Mounting Fan
The T800-19-0010 fan is designed to fit into the base of any standard 483mm rack frame
without affecting its ability to house seven modules. The fan is mounted directly onto
the underside of the bottom guide rails with two mounting brackets. The kit contains
all mounting hardware.
M850-00
T800 Ancillary Equipment
H13
Copyright TEL 31/09/98
Front Panels
T800-15-0000 Speaker Panel
A 60mm speaker panel fitted with a 4Ω speaker and programming socket. It comes
complete with mounting hardware and a cable to connect the programming socket to
the backplane PCB.
T800-15-0001 Speaker Panel
A 60mm speaker panel fitted with a 4Ω speaker, complete with mounting hardware.
T800-17-0010 Circuit Breaker Panel
A 60mm front panel fitted with a 10A magnetic circuit breaker. The circuit breaker also
functions as an on/off switch to control the supply of power to the rack frame. The
T800-17-0010 is intended primarily for use with rack frames powered by batteries (or
with a battery back-up supply) and comes complete with mounting hardware.
T800-17-0020 Circuit Breaker Panel
The same as the T800-17-0010, but fitted with a 20A circuit breaker.
T800-40-0000 Blank Panel Fitting Kit
The mounting brackets and screws necessary to fit a T800 Series II 60mm blank front
panel into a T800 Series II rack frame.
T800-40-0001 Blank Panel
A T800 Series II 60mm blank panel complete with mounting brackets and screws.
H14
T800 Ancillary Equipment
M850-00
31/09/98 Copyright TEL
Power Supplies
T800-23-0010 Mains Power Supply
The T800-23-0010 mains power supply is designed to power the T800-23-0000/0001
Slimline Repeaters and mounts on the front panel instead of the options tray. It requires
a mains input voltage (auto range) of 85-132/170-264V AC at 47-440Hz.
Refer to the T800 Ancillary Equipment Service Manual for more information.
T807-10-0000 Mains Power Supply
The T807-10-0000 is a switching power supply capable of supplying up to 15A at 11-14V
DC. It requires a mains supply of 230V/50Hz or 115V/60Hz (nominal values) which
can be internally selected with a switch. The T807-10-0000 is designed to power T800
Series II 50W transmitters (plus receivers, etc.) and requires a T800-44-0000 guide to fit
into a T800 Series II rack frame.
Refer to the T800 Ancillary Equipment Service Manual for more information.
T808-10-0000 Mains Power Supply
The T808-10-0000 is a switching power supply capable of supplying up to 25A at 11-14V
DC. It requires a mains supply of 230V/50Hz or 115V/60Hz (nominal values) which
can be internally selected with a switch. The T808-10-0000 is designed to power T800
Series II 100W transmitters (plus receivers, etc.) and requires a T800-44-0000 guide to fit
into a T800 Series II rack frame.
Refer to the T800 Ancillary Equipment Service Manual for more information.
M850-00
I-I
Copyright TEL 31/09/98
Part I Using T850 Series II Equipment In A
Series I Rack Frame
This part of the manual describes how to modify T850 Series II equipment for operation
in a T800 Series I rack frame.
Section Title Page
1 Tools Required 1.1
2
2.1
2.2
T855/856/857 SII - SI Conversion
Introduction
Method
2.1
2.1
2.2
3
3.1
3.2
T858/859 SII - SI Conversion
Introduction
Method
3.1
3.1
3.2
Figure Title Page
2.1
2.2
2.3
T855 Component Changes
T856/857 Component Changes
T857 RF Output Coax Routing
2.3
2.5
2.7
3.1 T858/859 Front RF Input Coax Routing 3.3
M850-00
Tools Required
I1.1
Copyright TEL 31/09/98
1 Tools Required
Tool Size
Allen Head Screwdriver 2mm AF
Flat Blade Screwdriver 3mm AF
Pozidriv Screwdrivers No. 1 for M3 screws No. 2 for M4 screws
Torx Screwdrivers T10 for M3 screws T20 for M4 screws
Spanners 1/4” AF for D-range locating pins
5.5mm AF for M3 nutsa
6mm AF for SMC connector
7mm AF for M4 nuts
a. If you do not have a 5.5mm spanner, you can use long-nosed pliers to carefully grip the M3 nuts on
the D-range securing screws and locating pins.
Solder
Soldering Iron
M850-00
T855/856/857 SII - SI Conversion
I2.1
Copyright TEL 31/09/98
2 T855/856/857 SII - SI Conversion
2.1 Introduction
You must make a number of modifications to enable a T850 Series II receiver, exciter or
transmitter to operate in a Series I rack frame. These changes can be split into two
groups, mechanical and electrical, as described below.
This procedure assumes you have already purchased the appropriate Series I conver-
sion kit:
• T855 - T800-70-0055
• T856 - T800-70-0056
• T857 - T800-70-0057.
If not, you should purchase one from your nearest Tait Dealer or Customer Service
Organisation before beginning the procedure.
It should take approximately 15-20 minutes per module to perform these steps.
Mechanical These changes involve:
• putting on a new front panel because of the differences in
height and width between a Series II and Series I panel;
• adding D-range locating pins as the Series I rack requires
them for alignment.
Electrical These changes involve:
• making sure there is pin compatibility for D-range 1 pin 7
between the Series II module and the Series I rack frame;
in Series I, pin 7 is allocated to audio 1 for the transmitter/
exciter, and audio 2 for the receiver;
• converting the exciter from rear RF output to front RF out-
put;
• disabling cyclic keying in the exciter.
I2.2
T855/856/857 SII - SI Conversion
M850-00
31/09/98 Copyright TEL
2.2 Method
Step Action
1 Remove the Series II front panel from the module as follows:
• remove the volume knob (T855 only);
• remove the four screws using a Torx screwdriver;
• push the LEDs from the front of the panel to remove them from
their grommets.
2 Remove both covers from the module.
3 Remove the M3 screws, spring washers, and M3 nuts from D-range 1.
Note:
If you have a chassis with threaded holes, you will need to
remove only the M3 screws and spring washers.
4 Replace the M3 screws with locating pins, M3 spring washers (and nuts
if necessary).
5If you are modifying a T855, follow this step; otherwise go to Step 6.
Remove R808 (10Ω), as shown in Figure 2.1.
Ensure that R160 (10Ω) is placed, as shown in Figure 2.1.
This will convert D-range 1 pin 7 from serial com to audio 2.
Go to Step 8.
M850-00
T855/856/857 SII - SI Conversion
I2.3
Copyright TEL 31/09/98
Figure 2.1 T855 Component Changes
remove R808
ensure R160 is placed
LFG
7
1
2
3
4
6
5
PQKHCB E N
9
A
8
MJD
#FL410#FL420
&XF300A&XF300B
&XF301
&XF302
=IC700
C201
C207
C209
C222
C229
C231
C233
C239
C240C
C249
C253
C260C
C261
C262
C266
C268
C312
C354
C382
C390
C440
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 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
D111
D250
D280
D285
D289
D290
D295
D610
D640
D730
D740
D820
D860
D880
IC210
IC240
IC260
IC270
IC280
IC310
IC320
IC410
IC610
IC630
IC640
IC650
IC710
IC740
IC750
IC820
IC830
IC840
IC850
L230
L310
L320
L330
L340
L350
L360
L370
L380
L385
L390
L420
L440
L740
L910
L920 L930
L940
P100
P160
P170
P201
P204
P207
P210
P213
P216
P219
P222
P225
P228
P231P234
P236
P238
P240
P242 P244
P246 P248
P250
P252
P254P256
P258
P260
P263
P266
P268
P270
P280
P282
P284
P287
P810
P815
P820
P825
P830
P835 P840
PL100
PL210
PL220
PL230
PL240
PL250
PL260
PL270
Q310
Q540
Q620
Q630
Q660
Q670
Q750
Q760
Q770
Q775
Q780
Q785
Q790
Q795
Q810
Q820
Q840
Q850
Q860
Q870
Q880
Q890
Q895
R160
R297
R334
R390
R399
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
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
R849R850
R851
R852
R853
R854
R855
R856
R857
R858
R859
R860
R861
R863
R865
R866
R867
R868
R869
R870
R871
R872R873
R875
R876
R877
R878
R879
R881
R882
R884
R885
R886
R887
R888
R889
R890
R891
R892
R894
R895R897
R898
RL210
RV205
RV210
RV220
RV230
RV235
RV310
RV320
SK320
SK330
SK501
SK502
SK503
SK504
SK505
SK513
SK522 SK531
SK532
SK533
SK534
SK535
SK805
SK810
SW201
T210
T610
T855
T855-
T85510
T85513
T85515
T85520
T85523
T85525
T855_
TOPFIDA
TOPFIDB
TOPHOLE
TOPSLOT
TP201
TP202
TP309
TP310
TP311
TP313
TP314
TP412
TP601
TP602
TP603
TP604
TP607
TP710
X310
SHLD610
I2.4
T855/856/857 SII - SI Conversion
M850-00
31/09/98 Copyright TEL
Step Action
6If you are modifying a T856, follow these steps (refer to Figure 2.2):
• remove R808 (10Ω)
• remove R160 (10Ω)
• place %R150 (10Ω).
Continue with Step 8.
If you are modifying a T857, follow these steps (refer to Figure 2.2):
• remove R808 (10Ω)
• remove R160 (10Ω)
• place %R150 (10Ω)
• remove L314; this will disable cyclic keying to enable the T857
to work with a Series I PA.
Continue with Step 7.
converts D-range 1 pin 7 from
serial com to audio 1
converts D-range 1 pin 7 from
serial com to audio 1
M850-00
T855/856/857 SII - SI Conversion
I2.5
Copyright TEL 31/09/98
Figure 2.2 T856/857 Component Changes
C810
C812
C822
C823
C824
C826
C827
C828
C830
C838
C841
C844
D111
D810
IC820
IC830
P150
P160
P170
P805
P810
P820
P825
P830
P835
P840
PL100
Q810
Q820
Q830 Q840 Q850
Q860
R160
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
R848
R849
R853
R854
R855
R859
R861
R863
R865
R867
R871
R872
R873
R874 R875
R876
R877
R879
RV805
SK805
SK810
SL810
TP607
DRANGE
AUX
CTCSS LEVEL ADJUST
%R150
A LBDCE J NKMHGF PQ
1
2
3
4
5
6
7
8
9
&C269
%C294
%C295
#C315
#C316
#C321
#C322
#C326
#C327
%C707
#L307
#L313
&R264
&R265
&R266
%R298
#R330
#R331
#R332
%C713
%C733
%D205
%D210
%R150
%R715
%R726
=R705
=SK710
C201 C202
C204
C205
C207
C209
C210
C211
C213
C215
C217
C219
C221
C223
C225
C227
C229
C230
C232
C233
C235
C237
C239
C241
C242
C243
C245
C247
C249
C251
C253
C255
C257
C259
C260
C261
C263
C265
C267
C271C273
C275
C277
C279
C281
C283
C285
C287
C289
C291
C293
C300A
C300B
C301
C302
C303
C304
C305
C306
C307
C308
C310
C311
C312
C313
C314
C317
C318
C319
C320
C323
C324
C325
C328
C329
C330
C331
C332
C333
C340
C341
C342
C354
C503
C505
C510
C513
C535
C550
C605
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
C705
C706
C708
C709
C710
C712
C720 C722
C724
C725
C726
C727
C729
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
C790
C792
C810
C812
C813
C822
C823C824
C826
C827
C828
C830
C838
C841
C844
C910
C920
C930
D111
D201
D202
D203
D220
D230
D240
D250
D260
D270
D510
D610
D620
D630
D635
D640
D710
D720
D730
D740
D810
IC210
IC220
IC230
IC240
IC250
IC260
IC300
IC610
IC630
IC640
IC650
IC710
IC720
IC730
IC740
IC750
IC820
IC830
L300
L302
L303
L305
L306
L307
L308
L309
L310
L312
L314
L750
L910
L920
LK302
P100
P150
P160
P170
P204
P208
P215
P217
P219
P225
P230
P231
P233P235
P237 P239
P240
P243
P244
P245P247
P248
P249
P251
P255
P257
P259
P261
P263
P267
P269
P271 P273
P275
P805
P810
P820
P825
P830
P835
P840
PL100
PL205
PL210
PL215
PL220
Q210
Q220
Q230
Q240
Q250
Q260
Q270
Q301
Q302
Q303
Q304
Q306
Q307
Q308
Q309
Q310
Q311
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
R160
R201
R202
R204
R205
R206
R207
R208
R209
R210
R212
R213
R214
R215
R216
R217
R218
R219
R221
R223
R224
R225R226
R227
R229
R230
R231 R232
R233
R235
R237R238
R239
R241
R242
R244
R245
R247
R248
R249
R251
R253
R254
R255
R256
R257
R258
R259
R260
R262
R263
R267
R268
R269
R270
R271
R272
R273
R274
R275
R277
R278
R279
R280
R282
R283
R284
R285
R286
R287
R288
R289
R290
R291 R292
R293
R294
R295
R296
R297
R299
R300
R301
R302
R303
R304
R305
R306
R307
R308
R309
R310
R311
R312
R313
R314
R323
R324
R325
R326
R327
R328
R329
R333
R334
R335
R340
R341
R342
R343
R344
R345
R346
R347
R348
R349
R355
R356
R357
R358
R359
R501
R502
R503
R504
R505
R510
R514
R515
R517
R518
R519
R520
R525
R530
R535
R540
R545
R550
R555
R560
R609
R613
R615
R617
R619
R621
R625
R629
R633
R637
R641
R645
R649
R653
R657
R661
R665
R669 R673
R677
R681
R685
R689
R693
R696
R701
R702
R703
R706
R708R710
R711
R712
R713
R717
R718 R719
R720
R721
R722
R723
R725
R727
R728
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
R785R786
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
R846
R847
R848
R849
R850
R853
R854
R855
R859
R861
R863
R865
R867
R871
R872
R873R874 R875
R876
R877
R879
RV210
RV220
RV805
SK200
SK205
SK310
SK420
SK501
SK502
SK503
SK504
SK505
SK513
SK522 SK531
SK532
SK533
SK534
SK535
SK805
SK810
SL810
SW230
T210
T610
T857
T85710
T85713
T85715
T85717
T85720
T85723
T85725
T857_
TOPFIDA
TOPFIDB
TOPHOLE
TOPSLOT
TP206
TP305
TP601
TP602
TP603
TP604
TP607
TP710
TP715
=IC700
remove L314
remove R160place %R150
remove R808
(T857 only)
I2.6
T855/856/857 SII - SI Conversion
M850-00
31/09/98 Copyright TEL
Step Action
7Converting the T857 from rear panel RF output to front panel RF out-
put.
Desolder, unscrew and remove the rear panel N-type connector.
Fit the blanking plate over the hole in the chassis from which the N-type
connector has been removed.
Unplug the existing coax from SK310 and SK420, retaining the spring
clip for the new coax cable.
Fit the front panel SMC connector:
• insert the coax fitted with the brass SMC connector through the
hole in the front of the chassis and secure with the brass nut
and washer;
• connect the coax from the SMC connector into SK310, securing
the coax in the groove provided in the chassis wall with the
spring clip (refer to Figure 2.3).
8 Fit all parts of the Series I front panel, following Step 1 in reverse order.
Note:
If you have difficulty refitting the LEDs, try pushing the
body of the LED back into the grommet with a thin screw-
driver or spike. Be very careful while doing this as the legs
of the LED are very easy to break.
9 Replace the covers.
10 Programming
Once you have carried out this conversion procedure, you will no
longer be able to program the T850 Series II module via D-range 1.
In order to program the module now, you will need to use a program-
ming module interface, such as the T800-01-0004. This device is fitted
with a programming socket and can be connected to the module via
SK805 in the microcontroller section. You will have to remove the top
cover (closest to the handle) to gain access to SK805.
Note:
You may still be able to program the module by connecting
the T800-01-0004 to a T800-03-0000 auxiliary D-range fitted
as D-range 2, but only if pins 8 (ground) and 12 (serial com)
of D-range 2 are not used in the Series I configuration.
M850-00
T858/859 SII - SI Conversion
I3.1
Copyright TEL 31/09/98
3 T858/859 SII - SI Conversion
3.1 Introduction
You must make a number of modifications to enable a T850 Series II PA to operate in a
Series I rack frame. These changes can be split into two groups, mechanical and electri-
cal, as described below.
This procedure assumes you have already purchased the appropriate Series I conver-
sion kit:
• T858 - T800-70-0058
• T859 - T800-70-0059.
If not, you should purchase one from your nearest Tait Dealer or Customer Service
Organisation before beginning the procedure.
It should take approximately 15-20 minutes per module to perform these steps.
Mechanical These changes involve putting on a new front panel because of the
differences in height and width between a Series II and Series I
panel.
Electrical These changes involve converting the PA from rear RF input to
front RF input.
I3.2
T858/859 SII - SI Conversion
M850-00
31/09/98 Copyright TEL
3.2 Method
Step Action
1 Remove the Series II front panel from the PA as follows:
• remove the four screws using a Torx screwdriver;
• push the LEDs from the front of the panel to remove them from
their grommets.
2 Remove the side cover.
3 Remove the rear panel BNC connector:
• unplug the RF input coax from the socket on the PCB;
• unscrew the BNC connector from the chassis;
• carefully withdraw the coax from the PA through the hole in
the rear of the chassis (cutting cable ties as required);
• fit the blanking plate over the hole in the chassis from which
the BNC connector has been removed;
• replace any cable ties previously cut and ensure the wiring is
secured under the restraints provided.
Fit the front panel SMC connector:
• insert the coax fitted with the brass SMC connector through the
hole in the front of the chassis and secure with the brass nut
and washer;
• connect the coax from the SMC connector into SK1, feeding it
over RV63 and under the LED legs and cable restraint, as
shown in Figure 3.1.
4 Refit the side cover.
5 Fit all parts of the Series I front panel, following Step 1 in reverse order.
Note:
If you have difficulty refitting the LEDs, try pushing the
body of the LED back into the grommet with a thin screw-
driver or spike. Be very careful while doing this as the legs
of the LED are very easy to break.
