Motorola MSR 2000 Manuals

Manuals and User Guides for Motorola MSR 2000. We have 2 Motorola MSR 2000 manuals available for free PDF download: Instruction Manual

Motorola MSR 2000 Instruction Manual (196 pages)

VHF Base and Repeater Stations 132-174 MHz

Brand: Motorola | Category: Repeater | Size: 46 MB

Contents
3
Model and Kit Identification
8
Service
8
Replacement Parts Ordering
9
Ordering Information
9
Intermittent Duty Station Performance Specifications
10
General Safety Information
20
Description
21
Manual Usage
21
Introduction
21
Typical System Configuration
21
Station Component Description
22
Transmitter
22
Unique Features
23
Receiver
23
Power Supply
23
Options
24
Simplified Block Diagram
26
Lighting Protection Recommendations
27
Recommended Protectors
28
Phone Line Suppressors
28
AC Line Surge Protectors
28
Coaxial Cable Ground Clamp Kits
28
Installation
29
Inspection
29
Planning the Installation
29
Ventilation
29
Antenna Connections
31
AC Input Power and Ground Connections
31
External Connection Details
31
Optional DC Input Power Connections
32
Station Installation Using Conduit for Primary Power Connection
32
Optional Mode Jumpering
33
Control Line Connections
33
Time out Timer Module
33
Squelch Gate
33
Control Line Level Adjustment
34
Tone Remote Control Operation
34
Specific Connection Information
34
DC Control Line Levels
34
Adjustments
35
Repeater Level Settings
35
Wire Line Controlled Base Stations and Repeater Stations
35
Station Maintenance
37
Local Operation
37
Station Control Module Switch Functions
37
Transmitter Control
38
Local Microphone
38
Local Speaker
38
Frequency Selection
38
Maintenance Techniques
39
Transmitter and Receiver
39
Remote Control Unit
39
Recommended Test Equipment
40
Disassembly and Service Access
41
Front Cover and Line Fuse
41
Power Amplifier Access and Removal
41
RF Control Chassis Access and Removal
42
Exciter and Rectifier Access and Removal
42
Removal of Power Amplifier
42
Speaker Intercom with Speaker and DC Metering Chassis Access
45
Duplexer Removal
45
Power Supply Access
45
Two-Receiver Coupler Removal
45
Mechanical Parts Identification
46
Junction Box Access
46
Wraparound Cover Removal
46
Intermittent Duty Power Amplifier
56
Continuous Duty Power Amplifier
56
Parts List
57
Theory of Operation
92
Local Oscillator Injection Circuitry
92
Mixer
92
I-F Circuitry
92
Receiver Functional Tests
93
Limiter/Detector
93
9.5 Volt Regulator
93
Audio and Squelch Test
93
Troubleshooting Techniques
94
Receiver Gain Measurements
94
Visual Inspection
94
Troubleshooting Crystals
94
Receiver Troubleshooting Chart
95
Receiver Alignment
96
VHF Receiver Alignment
96
Receiver Meter Readings
96
Receiver Maintenance
97
Exciter
101
Alignment
101
Intermittent Duty Transmitter Alignment
102
Continuous Duty Transmitter Alignment
104
Exciter Functional Tests
107
Exciter Power Output Test
107
Frequency Test
107
Deviation Test
107
Earlier Version Exciter
109
Power Amplifier Intermittent Duty
112
Power Amplifier Board
112
Power Control Circuitry
112
Forward Power Level Control
112
Power Amplifier Servicing
113
Reverse Power Protection
113
Over-Current Protection
113
Control Voltage Limit
113
Power Amplifier Transistor Replacement
114
Power Amplifier Board Removal
115
Power Amplifier Functional Tests
116
Control and Protection Tests
116
Current Limiting
117
Power Set
117
Thermal Protection
117
Reflected Power Protection
117
Power Amplifier Continuous Duty
121
Block Diagram
122
Loop Block Diagram
122
Power Control Board Block Diagram
122
Bias Circuitry
123
Reference Bias Circuit
123
Directional Coupler
123
Protection Circuitry
123
Voltage Regulator and Main Divider Line
124
Reference Power Bias Circuit
124
Maintenance
125
DC Level Output Amplification
125
Forward Power Bias Circuit
125
Test Set Metering
126
Reverse Power Detector Circuit
126
Using the Portable Test Set
127
Power Amplifier Board Metering
127
Power Control Board
128
Voltage Checks
129
Transistor Removal Procedure
129
Transistor Installation Procedure
130
Procedures for Resistance Measurements of Transistors
130
Power Control Board Troubleshooting Chart
131
Antenna Switch
137
Antenna Switch Replacement
137
Standard Power Supply
138
Rectification and Filtering
139
Regulation
139
Distribution Board
139
Auxiliary Regulator Board
139
Reference Voltage
140
9.4 V Regulator
140
14 V Regulator
140
Regulated Output Voltage Adjustment
141
Temperature Compensated Overcurrent Amplifier
141
Local Control Inhibit Inverter
141
Power Supply Removed from Cabinet
143
Battery Charger Power Supply
152
Battery Charger Board
154
Clock Generator
154
10 Volt Reference
154
Monostable Switch
154
Battery Revert Control Board
156
Battery Connection and Installation
157
Alert Tone Generation
157
Level Adjustments
158
A+ Voltage Adjustment
158
Battery Protection and Alarm
158
Regulating Output Voltage Adjustment
158
Low-Voltage Detector Adjustment
159
Alarm Tone Level Adjustment
159
Test Equipment Required
159
Auxiliary Regulator Chassis Removal
160
Power Supply Removal
160
Battery Maintenance
160
Power Supply Chassis Travel Distance
161
Properly Gripped Chassis
161
Remote Control
163
Duplexer
174
Removal/Replacement of Coupling Loops
175
Duplexer Selectivity Curves
177
Duplexer Wiring Detail
177
Recommended Tuning Procedure
178
Coupling Loop
178
Operation of the Mixer Circuit
179
Tuning the Notch
180
2-Receiver Coupler
182
Electrical Description
182
Physical Description
182
2-Receiver Coupler Installed Location
183
MSR 2000 Base Station Service Accessories
187
Base, Repeater & Guard Tone Keying Configurations
190
Repeater Option
191
Typical Guard Tone Relay System
191
Connections between Base and Repeater Stations
192
Guard Tone Relay Option C170
192
Dynamic Microphone
195
Electrical Parts List
195
Mechanical Parts List
195

Motorola MSR 2000 Instruction Manual (152 pages)

Brand: Motorola | Category: Amplifier | Size: 18 MB

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