Table of Contents vii
6881096C24-A July, 2004
List of Figures
Figure 2-1. Major Assemblies Block Diagram..................................................................................... 2-1
Figure 2-2. Transceiver Block Diagram .............................................................................................. 2-2
Figure 3-1. Programming/Test Cable ................................................................................................. 3-4
Figure 3-2. Wiring of the Connectors.................................................................................................. 3-4
Figure 4-1. Radio Performance Checks Setup ................................................................................... 4-1
Figure 4-2. Side Button Locations ...................................................................................................... 4-2
Figure 5-1. CPS Programming Setup ................................................................................................. 5-1
Figure 5-2. Radio Tuning Setup.......................................................................................................... 5-2
Figure 5-3. Reference Oscillator Warp Window ................................................................................. 5-3
Figure 5-4. Modulation Balance Window ............................................................................................5-5
Figure 5-5. Transmit Power Window (High Power) ............................................................................ 5-6
Figure 5-6. VCO Attenuation Window (12.5 kHz) ............................................................................... 5-8
Figure 5-7. DTMF Deviation Tuning Window.................................................................................... 5-10
Figure 5-8. MDC1200 Deviation Tuning Window ............................................................................. 5-11
Figure 5-9. Rated Volume Tuning Window....................................................................................... 5-12
Figure 5-10. Squelch Tuning Window................................................................................................. 5-13
Figure 5-11. RSSI Tuning ................................................................................................................... 5-14
Figure 5-12. Side Button Locations .................................................................................................... 5-16
Figure 6-1. Battery Removal............................................................................................................... 6-3
Figure 6-2. Antenna and Knob Removal ............................................................................................ 6-4
Figure 6-3. Chassis Removal ............................................................................................................. 6-4
Figure 6-4. Keyboard Flex Connection ............................................................................................... 6-5
Figure 6-5. Microphone and Speaker Connections ............................................................................ 6-5
Figure 6-6. Dust Cover Disassembly .................................................................................................. 6-6
Figure 6-7. Removal Speaker-Microphone Assembly ........................................................................ 6-6
Figure 6-8. Keypad Removal .............................................................................................................. 6-7
Figure 6-10. Removal of Main Board from Chassis.............................................................................. 6-8
Figure 6-9. PTT Removal ................................................................................................................... 6-8
Figure 6-11. Dust Cap Re-assembly .................................................................................................... 6-9
Figure 6-13. Speaker Re-assembly .................................................................................................... 6-10
Figure 6-12. Microphone Re-assembly............................................................................................... 6-10
Figure 6-14. Keypad Re-assembly ..................................................................................................... 6-11
Figure 6-15. LCD/Keypad Board Re-assembly .................................................................................. 6-11
Figure 6-16. Keyboard Retainer Re-assembly ................................................................................... 6-12
Figure 6-17. Main Board onto Chassis Re-assembly ......................................................................... 6-13
Figure 6-19. Keyboard Flex Cable Connection................................................................................... 6-14
Figure 6-18. Microphone and Speaker Wires Re-assembly ............................................................... 6-14
Figure 6-20. Fastening the Chassis.................................................................................................... 6-15
Figure 6-21. PTT Re-assembly........................................................................................................... 6-15
Figure 6-22. PR400 Full Keypad Radio Exploded View ..................................................................... 6-16
Figure 7-1. Battery Removal............................................................................................................... 7-3
Figure 7-2. Antenna and Knob Removal ............................................................................................ 7-4
Figure 7-3. Chassis Removal ............................................................................................................. 7-4
Figure 7-4. Keyboard Flex Connector................................................................................................. 7-5
Figure 7-5. Microphone and Speaker Connections ............................................................................ 7-5
Figure 7-6. Dust Cover Disassembly .................................................................................................. 7-6
Figure 7-7. Removal Speaker-Microphone Assembly ........................................................................ 7-6
Figure 7-8. Keypad Removal .............................................................................................................. 7-7
Figure 7-9. PTT Removal ................................................................................................................... 7-8
Figure 7-10. Removal of Main Board from Chassis.............................................................................. 7-9