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List of Figures
ix
List of Figures
Figure 2-1. DC Power Distribution Block Diagram ...................................................................... 2-1
Figure 2-2. Controller Block Diagram .......................................................................................... 2-3
Figure 2-3. Transmitter Block Diagram ....................................................................................... 2-4
Figure 2-4. UHF Receiver Block Diagram ................................................................................... 2-6
Figure 2-5. Frequency Generation Unit Block Diagram .............................................................. 2-8
Figure 2-6. UHFSynthesizer Block Diagram ............................................................................... 2-9
Figure 2-7. UHF VCO Block Diagram ....................................................................................... 2-10
Figure 2-8. Transmitter Block Diagram ..................................................................................... 2-11
Figure 2-9. UHF Receiver Block Diagram ................................................................................. 2-13
Figure 2-10. Frequency Generation Unit Block Diagram .......................................................... 2-14
Figure 2-11. Synthesizer Block Diagram................................................................................... 2-16
Figure 2-12. VCO Block Diagram.............................................................................................. 2-17
Figure 2-13. Transmitter Block Diagram ................................................................................... 2-19
Figure 2-14. VHF Receiver Block Diagram ............................................................................... 2-21
Figure 2-15. Frequency Generation Unit Block Diagram .......................................................... 2-23
Figure 2-16. Synthesizer Block Diagram................................................................................... 2-24
Figure 2-17. VCO Block Diagram.............................................................................................. 2-25
Figure 2-18. Low Band Transmitter Block Diagram .................................................................. 2-27
Figure 2-19. Low Band Receiver Block Diagram ...................................................................... 2-29
Figure 2-20. Low Band Frequency Generation Unit Block Diagram ......................................... 2-31
Figure 2-21. Low Band Synthesizer Block Diagram.................................................................. 2-32
Figure 3-1. UHF/VHF/Low Band Circuit Board Fuse Locations .................................................. 3-6
Figure 3-2. Circuit Board Removal and Reinstallation ................................................................ 3-7
Figure 4-1: Universal Flex Connector........................................................................................... 4-2
Figure 4-2: Universal Flex Connector Schematic Diagram .......................................................... 4-3
Figure 4-3: UHF Complete Controller Schematic Diagram .......................................................... 4-5
Figure 4-4: UHF Controller ASFIC/ON_OFF Schematic Diagram ............................................... 4-6
Figure 4-5: Controller Mircoprocessor Schematic Diagram ......................................................... 4-7
Figure 4-6: UHF Controller Memory Schematic Diagram............................................................. 4-8
Figure 4-7: UHF Controller Audio PA Schematic Diagram........................................................... 4-9
Figure 4-8: UHF Controller Interface Schematic Diagram.......................................................... 4-10
Figure 4-9: VHF Complete Controller Schematic Diagram ........................................................ 4-11
Figure 4-10: VHF Controller ASFIC/ON_OFF Schematic Diagram: PCB No. 8486473Z04 ...... 4-12
Figure 4-11: VHF Controller ASFIC/ON_OFF Schematic Diagram: PCB No. 8415112H01 ...... 4-13
Figure 4-12: VHF Controller Mircoprocessor Schematic Diagram: PCB No. 8486473Z04 ........ 4-14
Figure 4-13: VHF Controller Mircoprocessor Schematic Diagram: PCB No. 8415112H01........ 4-15
Figure 4-14: VHF Controller Memory Schematic Diagram: PCB No. 8486473Z04.................... 4-16
Figure 4-15: VHF Controller Memory Schematic Diagram: PCB No. 8415112H01 ................... 4-17
Figure 4-16: VHF Controller Audio PA Schematic Diagram....................................................... 4-18
Figure 4-17: VHF Controller Interface Schematic Diagram........................................................ 4-19
Figure 4-18: UHF (403–470 MHz) Main Board Top Side: PCB 8486458Z03 rev. C.................. 4-20
Figure 4-19: UHF (403–470 MHz) Main Board Bottom Side: PCB 8486458Z03 rev. C............. 4-21
Figure 4-20: UHF (403–470 MHz) Controls and Switches Schematic Diagram......................... 4-22
Figure 4-21: UHF (403–470 MHz) Receiver Front End Schematic Diagram ............................. 4-23
Figure 4-22: UHF (403–470 MHz) Receiver Back End Schematic Diagram.............................. 4-24
Figure 4-23: UHF (403–470 MHz) Voltage Controlled Oscillator Schematic Diagram............... 4-25
Figure 4-24: UHF (403–470 MHz) Synthesizer Schematic Diagram.......................................... 4-26
Figure 4-25: UHF (403–470 MHz) Transmitter Schematic Diagram .......................................... 4-27
Summary of Contents for PR860
Page 1: ...PR860 Two Way Portable Radio Detailed Service Manual ...
Page 2: ......
Page 5: ...iv Notes ...
Page 9: ...viii Table of Contents Notes ...
Page 13: ...Notes xii List of Figures ...
Page 17: ...1 4 Introduction Radio Model Information Notes ...
Page 51: ...2 34 Theory of Operation Voltage Control Oscillators VCO Notes ...
Page 81: ...4 4 Schematic Diagrams Overlays and Parts Lists Flex Layout Notes ...
Page 193: ...4 116 Schematic Diagrams Overlays and Parts Lists Low Band Section Notes ...
Page 196: ......