Motorola GM950i

Maintenance 3-i
Chapter 3
Maintenance
Table of Contents
Table of Contents
Paragraph Page
1.0 Overview..................................................................................................... 1
2.0 Disassemble the Radio ............................................................................. 1
2.1 Remove the Control Head ........................................................................... 1
2.2 Remove the Top Cover................................................................................ 1
2.3 Remove the Transceiver Board ................................................................... 2
2.4 Disassemble the Control Head .................................................................... 2
3.0 Assemble Radio......................................................................................... 3
3.1 Assemble the Control Head......................................................................... 3
3.2 Replace the Transceiver Board ................................................................... 3
3.3 Replace the Top Cover and Control Head................................................... 3
4.0 Exploded View Diagrams and Parts ......................................................... 4
5.0 Service Aids ............................................................................................... 6
6.0 Test Equipment .......................................................................................... 7
7.0 Radio Tuning Procedure............................................................................ 8
7.1 General ........................................................................................................ 8
7.2 PA Bias Voltage........................................................................................... 9
7.3 Battery Threshold ...................................................................................... 10
7.4 Transmitter Power ..................................................................................... 10
7.5 Reference Oscillator .................................................................................. 11
7.6 Front-End Pre-Selector.............................................................................. 11
7.7 Rated Volume ............................................................................................ 12
7.8 Squelch...................................................................................................... 12
7.9 Transmit Deviation Limit ............................................................................ 13
7.10 Transmit Modulation Balance (Compensation).......................................... 14
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