Motorola GP2000 Service Manual page 9

4.0 Block Diagrams.................................................................................................... 7-9
4.1 Complete ........................................................................................................ 7-9
4.2 Controller...................................................................................................... 7-10
4.3 VCO.............................................................................................................. 7-10
4.4 Transmitter ................................................................................................... 7-11
4.5 Receiver ....................................................................................................... 7-11
5.0 Circuit Board/Schematic Diagrams and Parts List............................................. 7-13
Controller Board .................................................................................................. 7-13
VHF 136-174 MHz Main Board Top Side............................................................. 7-14
VHF 136-174 MHz Main Board Bottom Side........................................................ 7-15
Complete Controller Board Schematic Diagram .................................................. 7-16
VHF 136-174 MHz RF Board Schematic Diagram............................................... 7-17
VHF 136-174 MHz Radio Parts List (Controller Board)........................................ 7-18
6.0 Troubleshooting charts ...................................................................................... 7-27
Troubleshooting Flow Chart for Receiver............................................................. 7-27
Troubleshooting Flow Chart for Transmitter......................................................... 7-28
Troubleshooting Flow Chart for Synthesizer ........................................................ 7-29
Troubleshooting Flow Chart for Microcontroller ................................................... 7-30
Troubleshooting Flow Chart for VCO ................................................................... 7-31
Glossary of Terms ....................................................................................... G-1
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