User's Manual
Table Of Contents
- Front Cover
- Contents
- 1 - Foreword 11
- 2 - Safety and General Information 21
- 3 - Introduction 31
- 4 - System Applications 41
- 5 - Models and Specifications 51
- 6 - Approved Accessories 61
- 7 - Setup and Connections 71
- 8 - Operation 81
- 9 - Troubleshooting 91
- Introduction 91
- Recommended Test Equipment 91
- Troubleshooting Procedures 91
- Module Replacement Procedures 925
- General Replacement Information 925
- Anti-Static Precaution 925
- Care of Gold-Plated Connector Contacts 926
- Power Down Station Before Removing/Inserting Modules 926
- Validating Repairs 926
- Module Replacement 926
- Wireline 928
- ASTRO Modem Card/V.24 Interface Card 929
- Receiver 929
- Exciter 931
- Power Amplifier 932
- Power Supply 933
- Backplane 934
- Preselector Field Tuning Procedure 935
- 10 - Functional Theory of Operation 101
- 11 - Block Diagram, Schematics, Electrical Parts List, and Circuit Board Detail 111
- List of Tables
- List of Figures
- Parts Lists
- Foreword
- Safety and General Information
- Introduction
- System Applications
- Models and Specifications
- Approved Accessories
- Setup and Connections
- Operation
- Troubleshooting
- Introduction
- Recommended Test Equipment
- Troubleshooting Procedures
- Module Replacement Procedures
- Preselector Field Tuning Procedure
- Functional Theory of Operation
- Schematics
- Back Cover
68P81093C75-O November 30, 2000 9-19
Step 10. Disable the transmitter by holding the Shift button and
then pressing the Access Disable button on the Station
Control Module, as shown in Figure 9. When the
transmitter is disabled, the yellow Access disable light
on the SCM will flash. This step is very important.
With the transmitter disabled, the PA Full LED on the
Exciter Module should not light, even when the station
is receiving.
Figure 8 A. Coupled receiver connection. (Top) B. Coupled duplexer connection. (Bottom)
RX
TX
RF SECTION
MONITOR
OSCILLOSCOPE
COMMUNICATIONS
SYSTEM ANALYZER
1
0
23
456
789
Duplexer
PDR 3500
Top Panel
Capacitive
Coupler
(Isolated T)
RF Output
Motorola
R2001 Communications
Analyzer
Dummy
Load
MAEPF-27035-O
RX
TX
RF SECTION
MONITOR
OSCILLOSCOPE
COMMUNICATIONS
SYSTEM ANALYZER
1
0
23
456
789
Duplexer
PDR 3500
Top Panel
Capacitive
Coupler
(Isolated T)
RF Output
Motorola
R2001 Communications
Analyzer
Dummy
Load
MAEPF-27036-O