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Motorola Manuals
Repeater
MSR 2000
Instruction manual
Motorola MSR 2000 Instruction Manual
Vhf base and repeater stations 132-174 mhz
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Instruction manual
(152 pages)
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Table Of Contents
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Contents
Model and Kit Identification
Service
Replacement Parts Ordering
Ordering Information
Intermittent Duty Station Performance Specifications
General Safety Information
Description
Manual Usage
Introduction
Typical System Configuration
Station Component Description
Transmitter
Unique Features
Receiver
Power Supply
Options
Simplified Block Diagram
Lighting Protection Recommendations
Recommended Protectors
Phone Line Suppressors
AC Line Surge Protectors
Coaxial Cable Ground Clamp Kits
Installation
Inspection
Planning the Installation
Ventilation
Antenna Connections
AC Input Power and Ground Connections
External Connection Details
Optional DC Input Power Connections
Station Installation Using Conduit for Primary Power Connection
Optional Mode Jumpering
Control Line Connections
Time out Timer Module
Squelch Gate
Control Line Level Adjustment
Tone Remote Control Operation
Specific Connection Information
DC Control Line Levels
Adjustments
Repeater Level Settings
Wire Line Controlled Base Stations and Repeater Stations
Station Maintenance
Local Operation
Station Control Module Switch Functions
Transmitter Control
Local Microphone
Local Speaker
Frequency Selection
Maintenance Techniques
Transmitter and Receiver
Remote Control Unit
Recommended Test Equipment
Disassembly and Service Access
Front Cover and Line Fuse
Power Amplifier Access and Removal
RF Control Chassis Access and Removal
Exciter and Rectifier Access and Removal
Removal of Power Amplifier
Speaker Intercom with Speaker and DC Metering Chassis Access
Duplexer Removal
Power Supply Access
Two-Receiver Coupler Removal
Mechanical Parts Identification
Junction Box Access
Wraparound Cover Removal
Intermittent Duty Power Amplifier
Continuous Duty Power Amplifier
Parts List
Theory of Operation
Local Oscillator Injection Circuitry
Mixer
I-F Circuitry
Receiver Functional Tests
Limiter/Detector
9.5 Volt Regulator
Audio and Squelch Test
Troubleshooting Techniques
Receiver Gain Measurements
Visual Inspection
Troubleshooting Crystals
Receiver Troubleshooting Chart
Receiver Alignment
VHF Receiver Alignment
Receiver Meter Readings
Receiver Maintenance
Exciter
Alignment
Intermittent Duty Transmitter Alignment
Continuous Duty Transmitter Alignment
Exciter Functional Tests
Exciter Power Output Test
Frequency Test
Deviation Test
Earlier Version Exciter
Power Amplifier Intermittent Duty
Power Amplifier Board
Power Control Circuitry
Forward Power Level Control
Power Amplifier Servicing
Reverse Power Protection
Over-Current Protection
Control Voltage Limit
Power Amplifier Transistor Replacement
Power Amplifier Board Removal
Power Amplifier Functional Tests
Control and Protection Tests
Current Limiting
Power Set
Thermal Protection
Reflected Power Protection
Power Amplifier Continuous Duty
Block Diagram
Loop Block Diagram
Power Control Board Block Diagram
Bias Circuitry
Reference Bias Circuit
Directional Coupler
Protection Circuitry
Voltage Regulator and Main Divider Line
Reference Power Bias Circuit
Maintenance
DC Level Output Amplification
Forward Power Bias Circuit
Test Set Metering
Reverse Power Detector Circuit
Using the Portable Test Set
Power Amplifier Board Metering
Power Control Board
Voltage Checks
Transistor Removal Procedure
Transistor Installation Procedure
Procedures for Resistance Measurements of Transistors
Power Control Board Troubleshooting Chart
Antenna Switch
Antenna Switch Replacement
Standard Power Supply
Rectification and Filtering
Regulation
Distribution Board
Auxiliary Regulator Board
Reference Voltage
9.4 V Regulator
14 V Regulator
Regulated Output Voltage Adjustment
Temperature Compensated Overcurrent Amplifier
Local Control Inhibit Inverter
Power Supply Removed from Cabinet
Battery Charger Power Supply
Battery Charger Board
Clock Generator
10 Volt Reference
Monostable Switch
Battery Revert Control Board
Battery Connection and Installation
Alert Tone Generation
Level Adjustments
A+ Voltage Adjustment
Battery Protection and Alarm
Regulating Output Voltage Adjustment
Low-Voltage Detector Adjustment
Alarm Tone Level Adjustment
Test Equipment Required
Auxiliary Regulator Chassis Removal
Power Supply Removal
Battery Maintenance
Power Supply Chassis Travel Distance
Properly Gripped Chassis
Remote Control
Duplexer
Removal/Replacement of Coupling Loops
Duplexer Selectivity Curves
Duplexer Wiring Detail
Recommended Tuning Procedure
Coupling Loop
Operation of the Mixer Circuit
Tuning the Notch
2-Receiver Coupler
Electrical Description
Physical Description
2-Receiver Coupler Installed Location
MSR 2000 Base Station Service Accessories
Base, Repeater & Guard Tone Keying Configurations
Repeater Option
Typical Guard Tone Relay System
Connections between Base and Repeater Stations
Guard Tone Relay Option C170
Dynamic Microphone
Electrical Parts List
Mechanical Parts List
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Table of Contents
Troubleshooting
Troubleshooting techniques
94
Receiver troubleshooting chart
95
Power control board troubleshooting chart
131
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