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Section 3: i
Section 3: Controller Service Maintainability
Theory of Operation
1.1 Overview......................................................................................................3:1-1
1.2 General........................................................................................................3:1-1
1.3 Radio Power Distribution .............................................................................3:1-2
1.4 Electronic ON/OFF ......................................................................................3:1-4
1.5 Emergency ..................................................................................................3:1-4
1.6 Mechanical ON/OFF....................................................................................3:1-5
1.7 Ignition .........................................................................................................3:1-5
1.8 Microprocessor Clock Synthesizer ..............................................................3:1-5
1.9 Serial Peripheral Interface (SPI)..................................................................3:1-6
1.10 SBEP Serial Interface..................................................................................3:1-7
1.11 General Purpose Input/Output.....................................................................3:1-7
1.12 Normal Microprocessor Operation...............................................................3:1-8
1.13 FLASH Electronically Erasable Programmable Memory (FLASH EEPROM)3:1-
1.14 Electrically Erasable Programmable Memory (EEPROM)...........................3:1-9
1.15 Static Random Access Memory (SRAM)...................................................3:1-10
2.1 Audio Signaling Filter IC with Compander (ASFIC CMP)..........................3:1-10
2.2 Transmit Audio Circuits .............................................................................3:1-11
2.3 Transmit Signaling Circuits........................................................................3:1-13
2.4 Receive Audio Circuits ..............................................................................3:1-15
2.5 Receive Signaling Circuits.........................................................................3:1-18
2.6 Voice Storage (Optional) ...........................................................................3:1-19
Troubleshooting Charts
Controller Schematics and Parts Lists
2.0 Controller T2 Schematics and Parts Lists.........................................................3:3-5
3.0 Controller T5 Schematics and Parts Lists.......................................................3:3-12
4.0 Controller T6/T7/T9 Schematics and Parts Lists ............................................3:3-20
Summary of Contents for PRO Series
Page 1: ...CDM Series and PRO Series Two Way Mobile Radios Detailed Service Manual 6881091C63 F ...
Page 4: ...Notes ...
Page 6: ...Notes ...
Page 8: ...Section 1 ii 6881091C63 F Notes ...
Page 12: ...Section 1 1 4 Radio Model Information 6881091C63 F Notes ...
Page 22: ...Section 1 2 10 Notes For All Schematics and Circuit Boards 6881091C63 F Notes ...
Page 46: ...Section 2 4 2 Allocation of Schematics and Circuit Boards 6881091C63 F Notes ...
Page 78: ...Section 3 1 20 Controller Board Audio and Signaling Circuits Section 6881091C63 F Notes ...
Page 80: ...Section 3 2 2 Troubleshooting Flow Chart for Controller 6881091C63 F Notes ...
Page 84: ...Section 3 3 4 Allocation of Schematics and Circuit Boards 6881091C63 F Notes ...
Page 146: ...Section 3 3 66 Controller T6 T7 Schematics and Parts Lists 8471235L06 Notes 6881091C63 F ...
Page 152: ...Section 4 1 4 Technical Specifications 6881091C63 F Notes ...
Page 168: ...Section 4 3 8 Troubleshooting Flow Chart for VCO 6881091C63 F Notes ...
Page 172: ...Section 4 4 4 Allocation of Schematics and Circuit Boards 6881091C63 F Notes ...
Page 232: ...Section 5 1 4 Technical Specifications 6881091C63 F Notes ...
Page 242: ...Section 5 2 10 UHF Band 1 403 470 MHz 1 25 W Frequency Synthesis 6881091C63 F Notes ...
Page 296: ...Section 6 1 4 Technical Specifications 6881091C63 F Notes ...
Page 306: ...Section 6 2 10 UHF Band 2 450 512 527 MHz 1 25 W Frequency Synthesis 6881091C63 F Notes ...
Page 316: ...Section 6 4 2 Allocation of Schematics and Circuit Boards 6881091C63 F Notes ...
Page 352: ...Section 7 3 6 Troubleshooting Flow Chart for VCO 6881091C63 F Notes ...
Page 356: ...Section 7 4 4 Allocation of Schematics and Circuit Boards 6881091C63 F Notes ...
Page 458: ...Section 8 1 4 Technical Specifications Section 6881091C63 F Notes ...
Page 474: ...Section 8 4 2 Allocation of Schematics and Circuit Boards 6881091C63 F Notes ...
Page 496: ...Section 9 1 4 Technical Specifications Section 6881091C63 F Notes ...
Page 512: ...Section 9 4 2 Allocation of Schematics and Circuit Boards 6881091C63 F Notes ...
Page 530: ...Section 10 1 4 Technical Specifications Section 6881091C63 F Notes ...
Page 546: ...Section 10 4 2 Allocation of Schematics and Circuit Boards 6881091C63 F Notes ...
Page 564: ...Section 11 1 4 Technical Specifications 6881091C63 F Notes ...
Page 580: ...Section 11 3 8 Troubleshooting Flow Chart for VCO 6881091C63 F Notes ...
Page 582: ...Section 11 4 2 Allocation of Schematics and Circuit Boards 6881091C63 F Notes ...
Page 608: ...Section 12 1 4 Technical Specifications 6881091C63 F Notes ...
Page 624: ...Section 12 3 8 Troubleshooting Flow Chart for PassPort 6881091C63 F Notes ...
Page 626: ...Section 12 4 2 Allocation of Schematics and Circuit Boards 6881091C63 F Notes ...
Page 654: ...Section 13 1 4 Technical Specifications 6881091C63 F Notes ...
Page 672: ...Section 13 4 2 Allocation of Schematics and Circuit Boards 6881091C63 F Notes ...