Motorola EP450

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vi Table of Contents
December 3, 2003 HKLN4215A
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 Tuning 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 ............................................................................................5-4
Figure 5-5. Transmit Power Window (High Power).............................................................................5-5
Figure 5-6. VCO Attenuation Window (12.5 kHz) ...............................................................................5-7
Figure 5-7. DTMF Deviation Tuning Window......................................................................................5-9
Figure 5-8. MDC-1200 Deviation Tuning Window ............................................................................5-10
Figure 5-9. Rated Volume Tuning Window.......................................................................................5-11
Figure 5-10. Squelch Tuning Window.................................................................................................5-12
Figure 5-11. RSSI Tuning ...................................................................................................................5-13
Figure 5-12. Side Button Locations.....................................................................................................5-15
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 6-9. PTT Removal....................................................................................................................6-8
Figure 6-10. Removal of Main Board from Chassis..............................................................................6-8
Figure 6-11. Dust Cap Re-assembly.....................................................................................................6-9
Figure 6-12. Microphone Re-assembly...............................................................................................6-10
Figure 6-13. Speaker 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 6-18. Microphone and Speaker Wires Re-assembly ...............................................................6-14
Figure 6-19. Keyboard Flex Cable Connection...................................................................................6-14
Figure 6-20. Fastening the Chassis....................................................................................................6-15
Figure 6-21. PTT Re-assembly...........................................................................................................6-15
Figure 6-22. EP450 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. Microphone and Speaker Connections ............................................................................7-5
Figure 7-5. Dust Cover Disassembly ..................................................................................................7-5
Figure 7-6. Removal Speaker-Microphone Assembly ........................................................................7-6
Figure 7-7. PTT Removal....................................................................................................................7-7
Figure 7-8. Removal of Main Board from Chassis..............................................................................7-7
Figure 7-9. Dust Cap Re-assembly.....................................................................................................7-8
Figure 7-10. Microphone Re-assembly.................................................................................................7-8