Thomson Broadcast and Multimedia 8BUSBSA-50C User Manual 8

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Document ID	74867
Application ID	QuhTHEmkUspkVCeJKgbRVw==
Document Description	8
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	210.34kB (2629252 bits)
Date Submitted	1999-12-09 00:00:00
Date Available	1998-09-16 00:00:00
Creation Date	2001-05-11 00:27:01
Producing Software	Acrobat Distiller 4.0 for Windows
Document Lastmod	2001-05-11 00:27:03
Document Title	8

‘0‘ COMVE PRELIMINAR Y SBSA-SflC Tzcllm'cnl Manual
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PRELIMINARY
Technical Manual
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Created by: Lisa M. Camping Checkzd by:
1/29/97
[10:14sz #: 97-020”
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TABLE OF CONTENTS
Warranty ---------------------------------------------------------------------~---—-‘—---—------» 1 3-00000
Top Level Description »----------»---»--—»-~-m-~---<-.--.---........--.---.................. 1 1,0101 1
Specifications ..........,_._,...m..._..________,___,_____________,______,_____________________95_01044
Theory of Operation - 12.01 014
Front and Rear Panel Descriptions
Front View --
Rear View ---
Block Diagram
Top View «-
Bottom View -HG3—01005
IF Processor" -10-01A03
Schematic, Visual IF, Aux IF & ALC Adjust Precorrector &
ALC On/Off---- -33-318-01
Automatic Level Control- » l4-04B01
Schematic, ALC Module -04-100—01
—10—03A02
-33-3l3-Ol
-33-323-Ol
UHF Upconverter .................
SChEmatiC, UI-LF Upconverter, 2 Pole -
Schematic, UHF Upconverter, 3 Pole ------
Schematic, UHF Synthesizer/Upconverter -34-007-01
EPROM Boar . 10.1 0501
Synthesizer ............_..............__._._.___._..___._..._____.___.___.._.___.___.__10.05003
Schematic, Microwave Synthesizer w/SOKHz Step,
4 Output RF Boar ---------------
Mixer/Driver Amplifier ------------
Schematic, Driver Module
Specifications --
Bandpass Filter -
Specifications 95—001046
Aural Final Amplifier-- 10-06B02
Schematic, Aural Final SBOSOB 04-249-01
Specifications -- 95-0104?
l 0—06B03
04—25 0-01
95 -0 l 048
10—06B04
04-254—01
Pre«Firial Amplifier ----
Schematic, Pie-Final Amp SBO50B
Specifications —————
Visual Final Amplifier A/B-
Schematic, High Power Amplifier
Specifications -— 95-01049
Mother Board --------- 10-10A03
Created by: Kimberly Simeane Checked by: Released by:
5&8/98
Document #: 97-0202)
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Schematic, Motherboard
Power Supplies ...................
10 MHz Distribution Board ----------- -10—11002
Schematic, 10 MHZ 2-Way Distribution Board —33—3 1 7-01
Signal Distribution Boar ---------------------------------- - 10-10P03
Schematic, Signal Distribution Board, SBOSOB Comview System-«3381201
Microcontroller Interface Board -- -10-10H01
RS-485 Communications Boar -- -10-10102
RS-485 Communications Interface, SBOSOB PS Chassis -------------33-304-01
Comview Status Monitoring Interconnection
Meterin ----------------- -10-04AO4
Diagnostic LED Display - -10-13001
Schematic, Display Board SBOSOB -33-118-Ol
AC Configuration Board ---------------------- - 10-10003
Schematic, AC Configuration Board -33-344-Ol
Installation------------------------------------------------—----------~-—-—-----»------»-—-—----- 14-01005
Unpacking Information
Environmental considerations
Safety Considerations
Input Line voltage Configuring
Linear Power Supply Configuring for 1 17 or 230 VMW ............. ~HGB-01007
Switching Power Supply
Switching Power Supply 1 17/230 VAC Jumper/MOV Configuring -HG3-01008
Physical Installation
System Grounding
SBSA-SOC System Cabling —-» -14-03A03
TVM Modulator
Interconnections with TVM-102 Modulator --—--—---——--————-————--—---HG3»01009
Barco Modulator
Interconnections with Barco Modulator --------------------------------- HOS-01010
SBSA-SOC Transmitter
10 MHZ/IF Reference Interconnections--------—-------------------------HG3-01011
Operation --------------------------------------------------------------------------------------- 15-01005
Initial Tum-On Procedures
Normal Operation
Troubleshooting ----—---~----------------------------------------------------------------------16-0800]
Failure Mode Display
Diagnostic Interface
Troubleshooting Worksheet
Analog Metering
Equipment Fusing and Protection»—---—‘--~-----------------------------
16-02002
Document #: 97—0202}
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Maintenance ------------------------------------------------------------------------------------ 17.01003
Inspections/Cleaning
Monthly Maintenance Record ------------------------------------------------------ 17.01 00 3 A
Calibrations -------------------------------------------------- 14.04 A02
System Power Calibrations
Output Power
Calibration Test Set-Up w/TV M Modulator ——--
Calibration Test Set-Up w/Barco Modulate
Metering Adjustment --------------------------
Reflected Power
+11 VDC Switching Power Supply
-HG3-01012
-HG3-01013
-HG3-01014
+1 1 VPS Metering Adjustment --—----—-----------------------------———————---~--—-HG3-0101 5
Customer Service --- ------------—--------------------------~------------—- 1 8-01001
Equipment Returns
Packaging for Return - ---------------- 18-01001A
Drawing List ——»--—-——-——--- ---------------- 18-02003
Schematic, Visual IF, Aux IF &
ALC Adjust Precorrector & ALC On/Off- ---33-318-01
04-100-01
33-313-01
33-323-01
34-007-01
Schematic, ALC Module-—----——-----
Schematic, UHF Upconvener, 2 Pole -
Schematic, UHF Upconverter, 3 Pole»
Schematic, UHF Synthesizer/Upconverter -
Schematic, Microwave Synthesizer w/SOKHZ Step,
4 Output RF Board -------
Schematic, Driver Module —
Schematic, Aural Final SBOSOB --
Schematic, Pre—Final Amp SBOSOB -
Schematic, High Power Amplifier
Schematic, Motherboard ——— n—35—074-01
Schematic, 10 MHz 2-Way Drstnbution Board — 33-3 1 7-01
Schematic, Signal Distribution Board, SBOSOB Comview System 33—312-01
RS—485 Communications Interface, SBOSOB PS Chassis 33-304-01
Schematic, Display Board SBOSOB --—- 33—118-01
13-081-01
04—056—01
---o4-249-01
04-250-01
---04-254-01
Schematic, AC Configuration Board --- --33-344-01
Internal Cabling ------ --14-03B04
Standard Frequencies --18—02003
Document 41: 97-0202)
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0 COMWAVE Warranty Information
M—————_
COMMUNICATION MICROWAVE CORP
TWO YEAR LIMITED WARRANTY
Communication Microwave Corp warrants each product of its manufacture to be flee from
any defect in material and workmanship for a period of two years after delivery to, and
return by the original purchaserl No returns, however, will be accepted unless accompanied
by a written factory return authorization.
The limit of liability under this warranty shall be to repair or replace any product, or part
thereof, which proves to be defective after inspection by Communication Microwave Corp
with the exception of tubes, semiconductor devices, lamps, fuses or equipment (i.e.
modulators) manufactured by others, which are subject to only such loss adjustment as
Communication Microwave Corp may obtain for the suppliers thereof,
This warranty shall not apply to any Communication Microwave Corp product which has
been modified, physically or electrically damaged, or to modules which seals have been
broken, or any product which has been subjected to conditions exceeding the applicable
specifications or ratings or improper service techniques.
Communication Microwave Corp will not be liable for any direct or consequential injury,
loss or damage incurred through the use, or the inability to use, any Communication
Microwave Corp product,
Communication Microwave Corp reserves the right to make design changes to any
Communication Microwave Corp product without incurring any obligation to make the
same changes to previously purchased units,
This warranty is the full extent of the obligation and liability assumed by Communication
Microwave Corp with respect to any and all Communication Microwave Corp products.
Communication Microwave Corp neither makes, nor authorizes any person to make, any
other guarantee or warranty concerning Communication Microwave Corp products,
Created by: Kimberly Simeon: Checked by: Helmet! by:
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TOP LEVEL DESCRIPTION
The model SBSA-SOC, 50 watt frequency agile television transmitter, generates a high
quality vestigial sideband television signal on all MMDS and ITFS channels. Advanced
circuit design which includes broadband gallium arsenic microwave amplifiers, high
efficiency switching power supply, extensive monitoring capability, EMI shielding, and
easy access compact design are but a few of the unit’s features.
This transmitter consists of an IF processor, a UHF upconverter, an aural ALC, three
final amplifiers, a swithesizer, a precorrector, two drivers and two bandpass filters,
The modulator accepts composite video and audio signals and provides an AM
modulated visual carrier at 45.75 MHz and an FM modulated aural carrier at 41.25 MHz.
The modulator provides these carriers separately to a UHF upconvener (350 MHz). This
second IF frequency is then upconverted to microwave and amplified for the desired
power level output. The second IF frequency was chosen so that the upconverted
microwave image frequency would be outside the microwave bandpass filter pass range.
The visual and aural final amplifier microwave outputs are combined in a passive
combiner to form a single six MHz wide television channel output.
Created by: Kbnbcrly Simone Checked by: Released by:
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Specifications
SPECIFICATIONS
Visual Performance
LOuMower 1 to 50 Watts
Output Fguency Any 6,7, 8 MHz Channel 2000-2700 MHz __I
Emission Visual: 5M75C3F
Impedance/Connector Input: 75 Ohms/ENC
Output: 50 Ohms/N
Input Level Video 1V P-P t 6 dB
Frequency Stability 1500 Hz (higher stabfiy omens available)
Harmonics -70 dB
Differential Gain 3% 7
Differential Phase —.- 2°
Spurious Products -60 dB
Aural Performance
Emission __| Aural: 250KF3E
OutJJut Power 15 Watts
Pre-Emphasis _| 75 Microseconds £5) Microseconds PAL)
Deviation: i 25 KHz (150 KHz PAL)
General
Power Reqliremems 1 17/220 VAC 50/60 Hz (fafl'y se_tl
Ambient Temperature -30° C to +50° C
Dimensions
Weight
Created by: Kimberly Simeone
5/26/98
Document #: 95-01044
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THEORY OF OPERATION
SBSA-SIJC 50 Watt Agile Transmitter
The SBSA-SOC transmitter receives an Intermediate Frequency (IF) AM modulated
visual and two FM modulated aural cam'ers which are converted to S-band frequency.
These signals are sent through driver and final amplifiers for a combined RF output
signal. The transmitter provides a visual output of 50 watts peak symc and a 15 dB ratio
of visual to aural power.
The SBSA~50C receives a visual (-8 dBm) carrier and auxiliary (—23 dBm) carrier which
proceed to the IF Processor where precorrection is introduced to eliminate amplitude
distortions of the visual final amplifiers. An aural (-8 dBm) carrier is also received and
enters, along with the visual carrier. The UHF upconverter module carries out an
upconversion function from a TV IF to a second IF at around 350 MHZ.
Afier being upconvened, the visual signal enters a mixer/driver where the IF signal is
heterodyned with a local oscillator (L0). The aural signal enters an aural ALC
(Automatic Level Control) module. After amplitude distortions are eliminated in the
aural carrier, the signal continues onto its own mixer/driver. Bandpass filters follow the
mixers to prevent out-of—band products from being amplified and transmitted. The
signals then go back to the drivers, where they are amplified.
From the driver, the visual signal is amplified further by a pre-amplifier, it then splits and
enters one of two 2 drive 6 final amplifiers which are broad band, fixed gain linear
amplifiers that do not require any tuning. Following the mixer driver, the aural signal
enters directly into a one drive two final amplifier.
After final amplification, the visual and aural signals are combined by a combiner and a
series of couplers to provide +47 dBm peak visual and +32 dBm aural power for the RF
output Refer to Document it HG2-01012 for a signal path diagram.
SBSA—SGC Front & Rear Panel Descriptions
This section explains the SBSA-50C front and rear panel features. Figures accompany
the text providing numerical indexed references.
Front Panel
1. METER: Provides an indication of transmitter status and performance of +11 VDC
switching power supply, reflected power, or forward average power. The meter is
calibrated to display relative measurements. Its function is controlled by the six position
rotary function switch.
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5/26/1993
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2. FUNCTION SWITCH: A six position, user selectable, rotary switch controls
front panel analog meter monitoring. The following parameters are selectable for
monitoring by the function switch.
STANDBY: Disables transmitting. Power remains applied to all circuits
Meter will read approximately 0%.
METER OFF: Transmitter is enabled. Metering disabled. Meter will read
approximately 0%.
+ 11 VPS: Provides status of main switching power supply. Meter reads 100
% indicating proper power supply voltage.
REF PWR: Relative reflected power measurement Readings less than 10%
are typical.
AUR PWR: Relative average aural output power measurement. 100% meter
reading confirms .63 watts average output power.
VIS PWR: Relative average visual output power measurement. 100% meter
reading confirms 50 watts average output power.
3. LEDs: Status monitoring LEDs, which provide indication of operating parameters
and internal diagnostics. The following status monitoring LEDs illuminate GREEN
during normal operation. Absence of an LED indicates a missing signal or parameter,
which results in a controlled automatic transmitter shut down.
l'N SIGNAL: Presence of an input sigtal.
INTERLOCKzlnterlock logic conditions are satisfied.
TRANSMIT: In transmit model
The following status monitoring RED LEDs remain OFF during normal operation. When
a failure is detected, the appropriate LED will illuminate RED. Controlled automatic
transmitter shut down is a function of failure severity. Presence of a RED status LED
with normal meter readings and/or normal transmitter operation indicates an out of
tolerance condition with that circuit.
TEMPERATURE: Internal chassis temperature has exceeded + 160 degrees
Fahrenheit( 71 degrees Celsius). Transmitter shut down occurs. Allow
transmitter to cool. Transmitter reset can beattempted by rotating the front panel
function switch to STANDBY.
VIS DRIVER: A failure or an out of tolerance condition with the driver
module. Transmitter usually operates at reduced output power.
VIS PRE—FINAL: A failure or an out of tolerance condition with the pro—final
module. Transmitter typically operates at reduced output power.
VIS FINAL NE: A failure or an out of tolerance condition with a final
module(s). Transmitter usually operates at reduced output power.
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RF POWER: Transmitter average output power has decreased to less
than 50% of full output. Transmitter shut down occurs.
PWR SUPPLY: A failure in the +11 volt DC main switching power supply
or an out of tolerance condition has been detected by the diagnostic and
monitoring circuitryt Transmitter shut down occurs.
LOCAL OSC: Absence of the local oscillator reference signal.
Transmitter shut down occurs
AUR DRIVER: A failure or an out of tolerance condition with the aural
driver module(s). The transmitter usually operates at reduced visual output.
AUR FINAL: A failure or an out of tolerance condition with the aural
final module(s). The transmitter usually operates at reduced visual output,
4 OSC TP: A front panel mounted VCXO local oscillator test point at + 5
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Rear Panel
1.J1:
2. RF OUT.
3. COMVIEW:
4. AGILE CONTROLLER:
5. AUX:
6. VISUAL IN:
7. AURAL IN:
8. 10 MHZREF IN:
9. Power Switch:
10. Fuse:
11. AC Input:
12. Fans:
I3. J2:
Document it: 12—01014
REV: PI
9 pin connector that supplies a video presence signal
between the modulator and the SBSA-SOC transmitter.
RF output female N type connector.
Two jacks in parallel to serve as either an input or output
for the ComView Monitoring System.
Synthesizer agile controller input.
75 ohm termination option.
Provides «SdBm of visual input coming from the TVM-IOZ
modulator.
Provides -8dBm of aural input coming from the TVM—102
modulator.
An extema] 10 MHz reference signal input connector
(female F connector).
Main chassis ON/OFF power switch.
Main line fuse location.
AC Line input power cord connector.
Three rear mounted fans provide for cooling. Fans are
wired for 117 VAC or 230 VAC depending upon the user
application.
25 pin connector for diagnostics and module voltage level
monitoring.
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IF PROCESSOR
The IF Processor contains linearity correction circuitry and automatic level control
(ALC) circuits, as well as an IF amplifier.
The linearity cor-rector is a proprietary circuit. It corrects all non-linearities developed in
the solid state final amplifiers. It is factory adjusted and no field adjustment is needed,
however, a switch is provided to turn the corrector ofi
The ALC circuitry compares a voltage proportional to peak output power to a pre-set
reference and adjusts a variable attenuator as needed to make the two voltages equal. The
ALC voltage is brought into the module and amplified by an integrated circuit (IC) and
compared to the reference Voltage in a second 10 The reference voltage is set by a
potentiometer. The error voltage is produced by the second [C and sent to a variable
attenuator consisting of two pin diodes. A potentiometer sets the proper attenuation when
the second switch is open. The ALC circuit may be turned off with this switch.
Created by: Kimberly Simeon: Checked by: Rzlemd by:
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UHF UPCONVERTER
The UHF npconverter module carries out an upconversion function from a TV IF to send
an IF at around 350 MHz. This second IF frequency, when mixed with the L0, produces
the desired microwave frequency. The second IF is necessary to make filtering of the
microwave L0 and other undesired signals manageable in broadband agile systems. The
visual and aural TV IFS are treated separately through the module, each chain providing
the necessary filtering to get rid of the image frequency and the UHF Local Oscillator.
Features of the module include adjustable bandpass filters, LO notches, phase lock
indication, LO sample, adjustable aural canier level, and access of all user adjustments
from the exterior of the module.
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Mixer/Driver Specifications:
twat Supply Requirements +10 V @ 1.1 Amp 1
-12 V 12 mA
Device Current Q-l Q 45 mA
Q-2 - 14 mA
Q-3 — 14 mA
04 - 360 mA
Q-S - 720 mA
Sectional Gain Mixer -1 dB 1 1 dB
Amp #1 22dB +1,-2dB
m2 #2 24 dB 1: MB
Center Frequency 1 MDS 2.15 GHz ‘
ITFS/MMDS 2.6 GHz
1 dB Bandwidth MDS 50 MHz
ITFS/MMDS 200 MHflmin.
InguilOugput Imgagance 50 ohms
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BANDPASS FILTER
The bandpass filter is used afier both the visual and aural mixers to remove out of band
mixing products. The filter is a multi-section bandpass filter. The tuned elements are
variable length lines inside each cavity, Coupling between each section consists of fixed
apertures which set the bandwidth
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Created by: Kimberly Slmeane
5/26/93
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SPECIFICATIONS
186 MHZ
1 dB 1 0.5 dB
2593 MHz
Bandwidth (1 dB)
Insertion Loss
Center Frguency
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5/26/98
Document 15: 95-01046
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AURAL FINAL AMPLIFIER
The Aural Final Amplifier receives an input signal at J 1 from the Aural Driver and the amplified
output appears at J2. The amplifier module consists of three identical FET mistors in a one
driving two in parallel configuration Biasing of each transistor is identical, therefore, only one
will be discussed
A housing feed through filter supplies +10 VDC to the drain of the first transistor Earn a
microstrip decoupling line. Negative 12 volts DC gate bias enters the module from a common
EMI feed through filter. This voltage is divided down and calibrated by two resistors and a
potentiometer. The potentiometer sets the operating drain current of the transistori A printed
decoupling line, consisting of two capacitors and a resistor, decouple the gate bias circuit.
Microstrip hybrids provide signal splitting and combining respectively for the second and third
transistors. Aural power sampling is built into the output circuitry for aural metering. The
sampling circuit consists of El printed directional coupler, a termination, a rectifier, and a
capacitor. The sample is converted to a DC voltage and is used for transmitter aural output
metering. No tuning adjustments are needed or provided.
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SPECIFICATIONS:
Power Supply Requirements [+10 VDC @ 2.2 Amperes —
-12 VDC@ 7.5 mA
Drain Current 1 2.2 Am res
Module Gain 5.5 dB i 1 dB
Center Freguency ITFS/MMDS -2.6 GHz j
1 dB Bandwidth 200 MHz
Minimum Ouggut Power £- 22 dBm _|
In ul/Ouggut Impedance 50 ohm
Created by: Kimberly Simeane Checked by: ”flu-“fl by:
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Dominant #: 95101048
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VISUAL FINAL AMPLIFIER A/B
The Visual Final Amplifier module receives an input signal at J 1 and provides an
amplified output at J3. The amplifier module consists of eight FET amplifier transistors
operating in a two driving six parallel configuration, a printed input hybrid, H1, splits the
input signal to two input FET transistors. These signals are further divided by hybrids
H2, H3, H4, and H5) to drive the six transistors equally. Output hybrids (H6, H7, H8, H9
and H10) recombine the amplified signals to a common output.
Biasing of each PET is identical, therefore, only one transistor is discussed, Plus ten VDC
is supplied to the drain circuit through an EMI feed through filter. A printed decoupling
line and a resistor decouple the drain circuit. Negative 12 volts DC gate bias enters the
module through a common EMI feed through filter. This voltage is divided and
calibrated by three resistors and a potentiometer. A potentiometer sets the operating
drain current. A printed decoupling line and a resistor decouple the gate circuit. No
tuning adjustments are needed or provided.
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MICROCONTROLLER INTERFACE BOARD
The optional Microcontroller interface board is a second generation diagnostic and control
interface function It, along with the GCB-ll, provides full diagnostics and control, along
with network communications capabilities required to support the ComView monitoring
system.
The Microcontroller Interface Board controls the front panel LED or LCD display, MUX
addressing, and interlock, transmit functions through octal latches. The MCU receives
various input signals, scales these inputs, and forwards them over a multiplex buss to the
Microcontroller unit (MCU, GCBll) for processing. The scaling amplifiers receive current
converted voltage samples from amplifier modules, amplifying them by appropriate factors
for common working levels: Scaled outputs are sent to 16 channel analog multiplexers. The
multiplexers receive addressing information from the Microcontroller through a hex level
translatorl The multiplexed output is further scaled (reduced by a voltage divider network and
is sent to the Microcontroller for processing).
The following chart cross references the signal, scaling amp, and multiplex output.
INPUTSIGNAL SCALINGAMP MULTIPLEX OUTPUT
um MUXBUSI 11
MUXBUSl 12
MUXBUSI 14
Final B (Ql, 3, 4, 5) MUXBUS] 13
Driver #1 0 2, 3 U2C MUXBUSI 08
Driver #2 194, 5! U2D MUXBUSl 07
Mixer Q1 U2B MUXBUSI 09
PreFinal (Q2) U3D MUXBUS2 03
Lo Locked UlA MUXBUSI 05
ALC IN UlB MUXBUS] 10
+12 Vpc UIC M'UXBUSZ 04
-12 VDQ U3B MUXBUSZ 08
+11 VDC U4B MUXBUSZ 02
Then-ml USD MUXBUSZ 01
IN SIGNAL USC MUXBUSZ 00
PS INTERLOCK U17A MUXBUSI 06
Gate 1 Ul7B MUXBUSZ 09
Gate 2 U17C MUXBUSZ 10
Gate 3 U17D MUXBUSZ ll
Gate 4 U18A MUXBUSZ 12
Gate 5 mill) MUXBUSZ 13
Forward Power UlGC MUXBUSZ 07
N/A U18D MUXBUSZ 06
REFL Power U19A MUXBUSZ 05
Created by: Kbnberly Simeon: Checked by: Released by:
5/2 6/98
Document 14: 10-1 01101
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RS-485 COMMUNICATIONS BOARD
An RS-485 communications board is mounted to the inside rear of the chassis. The
communications board has two functions. It receives and forwards Driver information for use
with an Agile Controller and interfaces each tmnsmitter’s Microcontroller Unit (MCU) to a
oonmnmication bus for status monitoring to a common computer/Master Control Station. The
system is capable of monitoring up to 32 individual transmitters.
The board has two 5 pin board mounted connectors, J 1 and J4, with connections to three
rear panel mounted 6 pin telephone type receptacles 19, J10, and J11. J 1 functions as the
interface between the transmitter’s MCU, the daisy chain communication buss, and a
computer monitoring system connected to 19 and J I0. The buss consists of a double
twisted shielded pair cable which daisy-chain links (parallels) transmitters to a common
computer for complete system status monitoring.
A board mounted mini DPDT DIP switch labeled as NETWORK END TERMINATION is
accessible at the rear of the chassis. When a status monitoring computer system is used, all
transmitter ordinarily have this switch set to the “OUT” position with the exception of the last
transmitter in the daisy chain series. The last transmitter normally has the sin/itch set to
“TERM”. This action terminates the communication buss at the last transmitter of the daisy link
chain establishing proper buss impedance.
J4 provides a feed through path to receptacle J 11. Driver information (GND, TURN-OFF,
INSIGNAL, ABC, and PWR) is available for use with an optional Agile Controller.
Created by: Kimberly Sbneane Checked by: Released by:
5723/90
Document #: 10-1010)
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METERING
Front panel metering of +11 VDc power supply, forward power, and reflected power are
provided by a panel switch and a meter, The meter is a 2 VDC full scale meter.
+1 1 VQQ Power Supply:
Voltage from the switching power supply is metered from the mother board via a
resistor and a calibration potentiometer. The meter will read 100% for normal
operation.
Forward Power:
A sample of the RF power from the output -20 dB directional coupler and 3 dB
attenuator is envelope detected by a diode and a capacitor in the detector module
assembly located on the top rear side of the chassis. The video and DC
component from this assembly is delivered to a connector on the mother board. A
buffer amplifier drives a diode and a capacitor to the peak value of the signal.
Another buffer amplifier then buffers this voltage to a meter calibration
potentiometer. This voltage is approximately 1.4 VDC for a 100% meter reading
and is present at the first buffer amplifier and at a connector for delivery to the
front panel meter rotary switch, In addition, the output voltage from the second
buffer amplifier is delivered to the visual l'F processor.
Reflected Power:
A sample of the reflected power from the -20 dB port of the output directional
ooupler via a 3 dB attenuator is envelope detected by a diode and a capacitor in
the detector module assembly. This voltage is applied to the motherboard On
the motherboard, a buffer amplifier drives the diode and capacitor to the peak of
the reflected signal. Another amplifier buffers the resulting voltage to a meter
calibration potentiometer. A third amplifier buffers the adjusted voltage which is
output to the meter rotary switch
The forward power and reflected power metering voltages are also output through a
current limiting resistor to the rear panel connector for external diagnostic monitoring, as
in a COMWAVE Agile Transmitter System.
Created by: Kimberly Simone Checked by: Released by:
5/26/98
Document #: I MAM
REV: P1
0 WAVE Diagnostic LED Display
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DIAGNOSTIC LED DISPLAY
The Diagnostic Display consists of three green and seven red LEDs which provide a
status of various parameters. LED drive signals are received from the Diagnostic
Interface Board. All green LEDs (In Signal, Interlock, and Transmit) continuously
illuminate verifying normal operation. Absence of a green LED indicates a missing
signal or parameter. The remaining LEDs illuminate red to indicate a fault or a parameter
that has deviated beyond a set tolerance.
GREEN:
IN SIGNAL
INTERLOCK
TRANSMIT D3
D1
RED:
RF POWER
PWR SUPPLY
LOCAL OSC
D7
Checked by: Released by:
Created by: Kmbzrly Slmeane
5/26/96
Document #: 10-1300!
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_A_MM_———-——
OPERATION
This section covers initial unit tum-on and explains normal operation of the SBSA—SOC
Transmitter. Prior to any initial equipment tum—on, verify that all appropriate wiring
interconnections have been accomplished.
Initial Turn-On Procedures
Ensure the rear mounted main power ON/OFF switch is in the OFF position.
Position the front panel rotary function switch to STANDBY.
insert the power plug into a power outlet.
Position the main power switch to ON.
‘Fan noise should be heard.
The following GREEN LEDs continuously illuminate verifying successful turn
ON,
PPPT‘
P‘
‘lN SIGNAL (if an input signal is applied; requires modulator operation)
‘lNTERLOCK
Normal Operation
Operation is enabled by rotating the function switch from STANDBY to any other
position. At that time, the following GREEN LEDs continuously illuminate confirming
normal operation.
*IN SIGNAL (must have an input signal applied to transmit; requires
modulator operation)
‘INTERLOCK
*TRANSM1T
Absence of a green LED indicates a missing signal or parameter. Continuous
illumination of any red status LED indicates a failure has been detected by the diagnostic
circuitry. Refer to the troubleshooting section for failures.
To verify other transmitter parameters using the front panel meter, rotate the fimction
switch. +11 V PS, VIS PWR and AUR PWR should have meter readings of 100%.
REFL PWR is a function of the oombiners, transmission line, and antenna. Reflected
power readings less than 10% are typical.
Created by: Kimberly sot-me Checked by: Released by:
sums
1 Id!
Document it: 15-01005
REV: P1
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M—_——.———
FAILURE MODE DISPLAYS
COMWAVE transmitters employ comprehensive diagnostic circuitry that monitor the
status of power amplifier modules and critical circuits. Failures can be readily interpreted
by observing front panel LED Diagnostic Display and/or monitoring the analog panel
meter. By observing the Diagnostic Display and metering, complete transmitter
operational status is known. Due to the internal transmitter design, there are no user
serviceable modules, parts, or components. Repair of these modules is not recommended
or advised. Contact COMWAVE customer support should a failure occur. This section
explains the various failure mode displays that may be encountered and possible
solutions
The following status monitoring LEDs continuously illuminate GREEN during normal
operation. Absence of an LED indicates a missing signal or parameter which results in a
controlled automatic transmitter shut down,
[N SIGNAL: Missing IF input signal from modulator.
Causes: Defective cabling to modulator baseband video input
Defective cabling from modulator IF output to SBSA—SOC Visual IF
Modulator
Missing baseband source signal
Solutions: Check cabling
Verify source signal
Replace modulator
Measure voltages at 25 pin Diagnostic Interface 12
Contact Cornwave customer support
INT ERLOCK: Missing system Interlock signal.
Causes: RF module unplugged or shorted
Solutions: Check for disconnected module(s)
Measure voltages at 25 pin Diagnostic Interface 12
Contact Comwave customer support
TRANSMIT: No transmit.
Causes: Missing IN SIGNAL
Missing INTERLOCK signal
See other diagnostic LEDs
Solutions: Check cabling
Created by: Kimberly Simeon: Checked by: Released by:
5/26/1993
Document #: 16-0800!
REV: Pl
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Troubleshoot per highlighted LEDs
Replace modulator
Measure voltages at 25 pin Diagnostic Interface J2
Contact Comwave customer support
When a failure is detected by the diagnostic circuitry, the appropriate RED status
monitoring LED continuously illuminates. Controlled automatic transmitter shut down is
a function of the failure and severity. Presence of a RED status LED with normal meter
readings and/or normal transmitter operation indicates an out of tolerance condition with
that circuit.
TEMPERATURE: Internal chassis temperature exceeded + 160 degrees Fahrenheit (+
7ldegrees Celsius).
Causes: Fans inoperative
Heavy accumulation of debris on fans or heatsiuks
Module(s) overheating
Site air conditioning
Remedy: Check fan operation
Check site air conditioning
Allow transmitter to cool: Reset latched failure logic by rotating function
knob momentarily to “STANDBY”
Contact Comwave customer support
VIS DRIVER: Defective visual driver module.
Causes: Visual driver module(s)
Switching power supply
Remedy: Measure voltages at 25 pin Diagnostic Interface J2
Contact Comwave customer support
VIS PRE-FINAL: Visual Pre-Final defective.
Causes: Visual Pre-Final
Switching power supply
Remedy: Measure voltages at 25 pin Diagnostic Interface 12
Contact Comwave customer support
VIS FINAL A or B: Defective visual final module.
Document If: 16—0800]
REV: PI
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Causes: Visual final module A or B
Switching power supply
Remedy: Measure voltages at 25 pin Diagnostic Interface 12
Contact Comwave customer support
RF POWER: Visual output power has decreased to less than 50 % of full output.
Causes: Visual driver module(s)
Final output module(s)
Power supply
Remedy: Check final output RF power levels
Contact Comwave customer support
PWR SUPPLY: Defective + 11 volt DC switching power supply:
Causes: Main input line fuse
Switching power supply fuse
Power Supply
shorted module(s)
Remedy: Check fuses
Measure voltages at 25 pin Diagnostic Interface J2
Contact Comwave customer support
LOCAL OSC: Local Oscillator failure.
Causes: Oscillator failure
External cabling
10 MHZ Reference
Remedy: Check external cabling
Measure voltages at 25 pin Diagnostic Interface J2
Contact Ccmwave customer support
AUR DRIVER: Defective aural driver module(s).
Causes: Aural driver module(s)
Power supply
Remedy: Measure voltages at 25 pin Diagnostic Interface 12
Contact Comwave customer support
Document #: ImMI
REV: Pl
0 WV! Troubles/rooting
M—_—————
AUR Fl'NAL: Defective aural fuial module(s).
Causes: Aural final module(s)
Power supply
Remedy: Measure voltages at 25 pin Diagnostic Interface 12
Contact Comwavc customer support
Diagnostic Interface
To assist in troubleshooting, COMWAVE transmitters employ a 25 pin computer type
diagnostic interface connector located at the rear of the chassis. This connector is
identified as J2. Critical power supply, module, and motherboard voltage test points can
be accessed/monitored at this connector. Should a failure occur, the combination of
meter readings, diagnostic LED status lights, and the diaglostic interface voltage test
points help identify the failure.
Attached is an example of a diagnostic interface High/Low Window blank data sheet.
The High/Low Window data sheet identifies each interface pin, the associated internal
test point, nominal value, and the expected voltage range.
The majority of internal assemblies that comprise a transmitter are modular. Modular
design enables quick, efficient failure troubleshooting and ease of repair. This concept
results in cost effective troubleshooting and less equipment downtime. Once a. module
has been identified as defective, COMWAVE can send a replacement, which can be
easily replaced by the customer.
Document it: 16-0300)
RE V: PI
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SBSA—SGC TRANSMITTER
TROUBLESHOOTING WORKSII'EET
12: REAR FUNCTION
PANEL CHECKED
DIAGNOSTIC
HIGH MEASURED
LIMIT VOLTAGE
“VDCM
LOW
LIMIT
“VDC”
NOMINAL
VOLTAGE
“VDC”
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2 +12 vnc Ps +115 +12 +125
3 -12 VDC Ps -1118 -12 -12.2
4 +11 VDC PS +107 +11 +11.1
5 +5 VDC Ps +45 +5 +55
6 Mixer Q1 2.5 411 5.74
7 AMP 1 Q2,3 2.0 4.5 7.0
8 AMP 2 (5,5 1.08 1.5
9 Pre-Final 92 2.2 3.0
10 FinalAQl, 3,4, 5 8.8 20.6
11 Final A 92, 6, 7
12 Final B Q2, 6, 7 —[
13 FinalBQl,3,4,5
14 N/A 1
I 15 N/A _5
| 16 N/A
| 17 N/A
| 18 N/A
| 19 Remote off
| 20 IN SIGNAL
| 21 L0
22 Remote Fault
23 Average Power N/A 1.40 | N/A
24 N/A N/A N/A
.10 N/A
25 REFL Power
FlLL IN ALL THE ABOVE BLANK SPACES COMPLETELY
COMPANY NAME:
PHONE NUMBER:
MODEL: CHANNEL:
SEND RESULTS TO:
TOLL FREE PHONE (“USA“ only)
CUSTOMER’S NAME:
FAX NUMBER:
SERIAL NUMBER (REAR PANEL):
COMWAVE-ATTENTION
TECHNICAL SUPPORT
1»800»COMWAVE (1 -800-266-9283)
1»717*-474-6751 "see um ml inn-mm “8471001
1-717'474-5469 FAX “seem: an document ills—01001
Document fl: 16-0300]
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Analog Metering
The front panel analog meter provides an indication of the +11 Vpc Switching Power
Supply, Reflected, Aural and Visual output power, The +11 VDC switching power
supply, aural and visual output power should indicate 100%. Reflected power meter
readings less than 10% are typical. By observing the meter readings, transmitter
performance can be interpreted Analog meter readings in conjunction with the front
panel Diagnostic status LEDs help to identify/isolate failures(s). The following
information is provided to assist in troubleshooting analog meter anomalies.
+11 VPS: Meter does not indicate 100%.
Causes: Defective switching power supply
shorted module
Open switching power supply fuse F2
Open main AC input fuse
Switching power supply out of adjustment
Metering out of adjustment
Solutions: Replace defective fuse(s)
Check switching power supply output voltage
Troubleshoot per front panel LED Diagnostic display
Adjust switching power supply output voltage per Document #l4-O4A02
Calibrate meter per Document # HG3-01015
Measure voltages at 25 pin Diagnostic Interface J2
Contact Comwave customer support
REFL PWR: Reflected power is greater than 10%.
Causes: Loose RF cable connection(s).
RF cable kinked
Wave guide leak/depressurized
Reflected metering out of adjustment
Solutions: Check integrity of all RF cable connections
Check cabling for kinks or severe bends
Check wave guide pressure
Calibrate reflected metering per Document #14-04A02
Measure voltages at 25 pin Diagnostic Interface J2
Contact Comwave customer support
AUR PWR: Meter does not indicate 100% power.
Causes: Driver module
Final module(s)
Switching power supply
Document #: 16-0000]
RE V: P]
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Metering out of adjustment
Solutions: Confirm output power
Troubleshoot per front panel LED Diagnostic display
Replace defective module
Calibrate forward power metering per Document #’s l4-04A02 & HG3-01014
Measure voltages at 25 pin Diagnostic Interface J2
Contact Comwave customer support
VIS PWR: Meter does not indicate 100% power.
Causes: Driver module
Final module(s)
Switching power supply
Metering out of adjustment
Solutions: Confirm output power
Troubleshoot per front panel LED Diagnostic display
Replace defective module
Calibrate forward power metering per Document #’5 l4-04A02 & HG3-01014
Measure voltages at 25 pin Diagnostic Interface J2
Contact Comwave customer support
Document #: I 6-08001
REV: P1
Q 92mmv: Troubleshooting — Equipment Fusing
___Fm'2b_—__—-——
EQUIPMENT FUSING AND PROTECTION
Fuses:
Location....,..,.............Name .......................... Value
Mother Board .. .15 amperes
Mother Board 25 amperes
Mother Board.. .25 amperes
Mother Board .. A amperes
Power supply .15 amps @ 117 VAC or 8 amps @ 230 VAC
Rear Panel AC. .123mps@117VAcor7amps@230VAc
Surge Suppression: COMWAVE transmitters employ a metal oxide varistor (MOV)
voltage suppresser across the AC line input for protection from moderate power surges.
The surge suppresser value is dependent upon the AC line input voltage 117 VAC
employs a 150 VAC MOV and 230 VAC uses a 275 VAC MOV.
Thermal Protection: Thermal protection is accomplished using thermostats that close
when the internal temperature exceeds +160 degrees Fahrenheit (+71 degrees Celsius).
When thermal shut dotwr occurs, a logic control board removes power from the final until
the unit is sufficiently cooled.
lnterlocks: lnterlocks are designed for transistor bias protection for both the
PET gate and drain power supply voltages. See Doeument#lO-10P03.
mam: by: Kimberly Simone Chztkd by: Released by:
5/2503
Document if: 16-02002
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MAINTENANCE
COMWAVE products have been carefully designed to be maintenance free. Only
periodic inspection and cleaning is necessary.
Inspections:
1. Periodically inspect cooling fans on the rear door of the rack and the heatsinks of the
Power Amplifier Segments for heavy accumulations of dirt and/or insects. Heavy
accumulation of foreign debris impedes cooling effectiveness and could lead to
premature failure. Should any debris be detected, shut down the transmitter and
follow the cleaning instructions to remove debris fiom transmitter. NOTE: The Agile
1mm will anmmlcdlly mow the channel aft/u tram-mu, which is being dmnzd.
2, Record analog meter readings of each Driver on a monthly basis. This establishes a
performance historical database These entries can identify degraded performance
before it becomes a hard failure.
3. Afier performing routine maintenance, be sure to check the tightness of all cable
connections and especially the integrity of crimp type connectors.
Cleaning:
Clean faceplate and outside cover using a damp non-abrasive cloth with a mixture of a
mild detergent and water
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MONTHLY MAINTENANCE RECORD
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Created by: Kimberly Simemre Checked by: Released by:
5/26/98
Document it: I 7-01003A
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The following section explains calibration of the SBSA-MC transmitter. The user must be thoroughly
familiar with use afapplieable ten equipment. All calibrations, alignmenn, and adjustments have been
performed at the factory by qualified service personnel prior to shipping. Additional adjustments are not
necessary or advised
SYSTEM POWER CALIBRATIONS
This section covers adjustments of SBSA-SOC average output power and calibrations of
the front panel output power and reflected metering.
‘NOTE: This procedure is applicable for only making MINOR adjustments to ‘i
output power and analog metering. Do NOT adjust power more than t .5 dB.
Adjustments more i: .5 dB may result in increased intermodulation distortion
products
This procedure sets the transmitter output power while transmitting a modulated signal Calibration of
oatputpower and metering circuitry is a straightforward task. For proper calibration, adjustments are
performed in a specific sequence. The [allowing information is provided to assist in proper calibration.
OUTPUT POWER:
Required Equipment:
Spectrum Analyzer Microwave Power Meter
30 dB Directional Coupler 50 Watt, 50 Ohm Load
Two N to N Male Barrels Small Flat Blade Screwdriver
N to BNC Adapter Alignment Tuning Tool
Video Generator
1. Place the SBSA-SOC to STANDBY to disable transmitting.
2. Attach a —30 dB directional coupler to the transmitter output See Figure 8.0 and
8.0.1. Temiinate the coupler output into a 50 watt, 50 ohm load. Connect a
microwave power meter to the -30 dB coupled port.
3. Apply a modulated signal to the transmitter [F input. Set video generator to black
picture (No set up/O IRE).
4. Turn IF Precorroctor ALC switch 52 to “OFF."
5. Rotate function switch from STANDBY to “FWD PWR” to enable transmit.
6. Calculate power meter reading necessary for 100% output, accounting for the coupler
lossl
Created by: Kimberly Simeon; Checked by: Released by:
5/26/98
Document it: 14-04A02
REV: PI
0 WAVE Calibration-s
flb———
EXAMPLE
Transmitter Output @ 50 watts = + 47.00 dBm
-30 dB Coupler = - 30.00 dBm
+ 17.00 dBm
Correction Factor (Black picture/no set up) = 220 dBm
Expected Power Meter Reading : 14.80 dBm
7. Adjust motherboard variable potentiometer VR4 and VR2 to indicate 100% visual
and aural power output, respectively
8. Turn ALC switch S2 “ON.”
Document #: 14-04A02
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REFLECTED POWER:
1.
2.
Rotate the function switch to STANDBY.
Turn the IF Precorrector ALC switch 52 “OFF.”
Momentarily interchange the coax cables at the Peak Detector ports.
Rotate the function knob from STANDBY to REF to enable transmit.
Adjust motherboard potentiometer VR3 for 100% reflected power reading.
Rotate fimetion knob to STANDBY.
Return Peak Detector coax cables to their original configuration.
Tum IF Precorrector ALC switch 82 “ON.”
Rotate the function switch to REF . The meter should indicate less than 7% residual
reflected power reading into a resistive termination.
+ 11 VDC SWITCHING POWER SUPPLY METERING:
Using a digital voltmeter, measure the switching power supply output.
Confirm switching power supply voltage output is + 11 VDC, If required, adjust
switching power supply VR59 (Deltron switching power supplies).
Rotate function switch to +1 I VPS.
Adjust mother board potentiometer VR1 to correspond to 100% +11 VPS metering.
Connect a voltmeter to TPl and adjust the potentiometer, VRS, to a -12 V reading.
Document #: u-amz
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A 11mm.-
—-—C—Wm—__—__
CUSTOMER SERVICE
Comwave’s customer service personnel are available 24 hours a day to assist with any
questions of complications that may arise.
Communication Microwave Corp
Crestwoml Industrial Park
395 Oakhill Road
Mountaintou PA 18707
1-7'17-474
(Pie-u new as 0111/98. our am code will
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EQUIPMENT RETURNS
In the event the equipment requires return for factory service, please follow the
guidelines listed. Comwave cannot be held responsible for damaged equipment received
due to improper packing. Contact Comwave with any questions or concerns regarding
returning or packaging of equipment.
1.
Contact Comwave: Call Comwave to report the problem and to obtain a “Return
Authorization“ number (RA). This enables Comwave to accurately track and identify
returned equipment for prompt and efficient service.
Obtain packag'mg materials: Use original boxes and packing materials when
returning any equipment. This will safe guard against most in-transit damages. If
original boxes and packing materials are not available, contact Comwave to obtain
replacement materials. Replacement materials are provided at a nominal cost.
. Pack eguigment: Using original packing materials, equipment is packed in a box
within another box. Double boxing provides maximum protection,
Caution.- Da not pack equipment using “PEANUTS.” Equipment packed using
“PEANUZS‘” as filler does NOT provide sufficient protection during shipping.
Rough handling by the carrier may cause permanent damage to the equipment
being returned.
Document #: 18-01001
REV: P-B
a WV! Customer Service
A Thoma: sm
PACKAGING FOR RETURN
Refer to the diagram below which corresponds to each step.
1. Place the cardboard inserts above and below the equipment.
2. Insert foam against the front panel, between the handle and the corner of the inner
box.
3. Insert the foam block securely behind the fans to prevent equipment from shifiing
upon transit.
4. Place the protective foam pieces on each corner of the inner box.
5. Place the inner box into the outer boxs
Created by: Kimberly Simeon: Checked by: Rzlzaszd by:
506/93
Document 44: 13-0100“ Mmln/luuu
RE V: PI
Q my! Schematics
DRAWING LIST
SBSA-50C DRAWINGS
Module/Board . .......... Module # ................... Board #
IF Processor i 04-277—02 33-315-02
ALC ....... . 04—129»02 04-100-02
UHF Upconverter.. . 09-058-02 34-007-02
EPROM Board ............... 35—316—02
. 09-052-02 . 35-064-02
. 33—291-02
. 13-081-02
Synthesizer .
Visual Driven. . 04-128—02
Aural Driver .04-060-02
Aural Final Amp . 04—249—02
Pre-Final Amp . 04-250-02
Visual Final Amp .. . 04-248-02
Mother Board .............. . 35-074-02
10 MHz Distribution Board. . 33-317-02
Signal Distribution Board‘ 4 33-312—02
“34-006—02
.33-304-02
. 33-118—02
Microcontroller Interface Board.
RS—485 Communications Board"
Diagnostics Board 4
Created by: Kimberly S'nnmne Relmed by:
5/26/93
. Document #: 10-02003
RE V: PI
0 commv:
Internal Cabling
A “mag Cvmwx
INTERNAL SBSA-SOC CABLING
CABLE TYPE FROM TO
60-036—430 Visual IF (Rear Panel) IF Processor (J 1)
60-036-430 Aural IF (Rear Panel) IF Processor (JZ)
60-043-3 80 10 MHz IN (Rear Panel) 10 MHz Distribution Board
60-036-410 Aur IF (Rear Panel) UHF Upconverter (J3)
60-003-100 10 MHZ Distribution Board UHF Upconverter (J 1)
60-003—120 10 MHz Distribution Board Synthesizer
16-048-390 CPU Interface EPROM Assembly
16—1 63~ l 40 EPROM Assembly Synthesizer
60-003-050 IF Processor (I3) UHF Upconvener (J4)
60-003-200 UHF Upconvener (15) Visual Mixer
60—067-150 Visual Mixer Synthesizer
60-011—050 Visual Mixer Visual Bandpass Filter (IN)
60-011-062 Visual Bandpass Filter (OUT) Visual Amp 1
60—01 l~050 Visual Amp 1 Visual Amp 2
60-011-100 Visual Amp 2 Pre-Final Amplifier
6001 1-070 Pre-Final Amplifier Final Amplifier A
60-011-102 Pre-Final Amplifier Final Amplifier B
60-011-090 Final Amplifier A Combined-20 dB Coupler
60-011-052 Final Amplifier B Combiner/JO dB Coupler
SF2993—6001 Combinerl-ZO dB Coupler -7 dB Coupler
60-067-300 Combinerl-20 dB Coupler FWD Power (Front Panel)
60-067—300 Combined-20 dB Coupler REFL Power (Front Panel)
60-003-220 UHF Upconverter (J6) Aural ALC
60-003—060 Aural ALC Aural Mixer
60-067-1 10 Synthesizer Aural Mixer
60-068-160 Synthesizer Front Panel Sample (LO OSC)
60-067-080 Aural Mixer Aural Bandpass Filter (OUT)
60-01 l-OSO Aural Bandpass Filter (OUT) Aural Amp 1
60—011-050 Aural Amp 1 Aural Amp 2
60-011-062 Aural Amp 2 Aural Final
60-011—060 Aural Final —7 dB Coupler
60»010—060 -7 dB Coupler RF Out (Rear Panel)
Created by: Kimberly Simeonz Checked by: Released by:
506/90
llaclunem‘ #: 14-03504
V; P]
U com“ Standard Frequencies N TSC Format 6 MHz
STANDARD FREQUENCIES NTSC FORMAT 6 MHz
Group Bandwidth (MHz)
A] 2500-2506
A2 2512-2518
A3 2524-2530
A4 2536-2542
C] 2548-2554
C2 2560-2566
C3 2572-2578
C4 2584-2590
E1 2596—2602
E2 2608-2614
E3 2620-2626
E4 2632-2638
G1 2644—2650
62 2656-2662
G3 2668-2674
G4 2680-2686
B1 2506-2512
B2 2518-2524
B3 2530-2536
B4 2542-2548
D1 2554-2560
D2 2566-2572
D3 2578-2584
D4 2590-2596
F] 2602-2608
F2 2614-2620
F3 2626-2632
F4 2638-2644
H] 2650—2656
H2 2662-2668
H3 2674—2680
MDS] 2150-2156
MDSZ 2156—2162
MDSZA 2156-2160
Created by: Kimberly Shnemu Checked by: Released by:
5/26/1998
Document £4: 18-02003
RE V: Pl
0 COMWAVE sasA-soc Tap Vim
A 11mm: Camp-my
SBSA-50C TOP VIEW
OUTPUT
2 DRV 6 FINAL 2 DEV 6 FINAL
0 AMPA 0° AMP B
O 00
0 00
E5:
85'
“E‘s
a“
GQOQOQQ
uuummmm
55”
Created by: Kimberly Simtmte 5/2 7/93 Checked by:
Dominant $5: ”GI-01004
RE V: Pl

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