Motorola GP88s

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8-2 Parts List (Keypad)

3.0 Parts List (Keypad)

Circuit Ref

Motorola

Part No.

Description

C603 2113740F51 100pF

C606 2113743E20 0.1uF

C607 2113740F51 100pF

C609 2113740F51 100pF

C610 2113740F51 100pF

C611 2113740F51 100pF

C612 2113928D08 10uF

C613 2113740F51 100pF

C614 2113740F51 100pF

C615 2113740F51 100pF

C616 2113740F51 100pF

J600 0985627Z01 11 pin connector

J601 0980521Z01 44 pin connector

R618 0660076E90 51K

R619 0660076E90 51K

R621 0662057P15 13K

R622 0660079J37 22K

R623 0660079J72 43K

R624 0662057G19 130K

R627 0662057P15 13K

R628 0660079J37 22K

R629 0660079J72 43K

R630 0662057G19 130K

R634 0660076E90 51K

R635 0662057B16 560K

R636 0662057B22 1Meg

U602 5102463J49 LMC7211 Com-

parator

8485642Z01 PC Board

Main Page

Computer Software Copyrights2
Safety Information5
- Fmrc Approved Equipment8
- Intrinsically Safe Radio Information8
- Operational Cautions8
- Operational Warnings8
- Repair of Fmrc Approved Products9
- Do Not Substitute Options or Accessories10
- Table of Contents11
Introduction17
Scope of Manual17
Warranty and Service Support17
- Warranty Period and Return Instructions17
- After Warranty Period17
- Piece Parts18
- Technical Support19
Radio Model Information20
- Accessories21
Adaptors21
Antennas21
Batteries21
Carrying Accessories21
Chargers21
Audio Accessories22
Manuals22
Option Boards22
Retrofit Kit22
Service Kits22
- Service Aids23
Recommended Test Tools23
Service Aids24
Test Equipment25
Programming/Test Cable26
- Maintenance29
Introduction29
Preventive Maintenance29
- Inspection29
- Cleaning Procedures29
Safe Handling of CMOS and LDMOS Devices30
Repair Procedures and Techniques - General31
Disassembling and Reassembling the Radio - General32
Radio Disassembly - Detailed33
- Front Cover from Chassis Disassembly33
- Chassis Assembly Disassembly35
- Keypad/Option Board Disassembly36
- Speaker, Microphone, and Wire Disassembly37
- PTT Disassembly38
- Control Top Disassembly39
Radio Reassembly - Detailed39
- Control Top Reassembly39
- PTT Reassembly39
- Speaker Reassembly39
- Keypad Option Board, Microphone and Wire Reassembly40
- Chassis Assembly Reassembly40
- Chassis and Front Cover Reassembly41
Option Board Installation41
- Configuring the Radio after Option Board Installation43
- Additional Configuration Required by the DTMF Option Board44
Mechanical View and Parts List45
- Gp88S Exploded View and Parts List45
  - Transceiver Performance Testing47
Introduction47
Setup47
Test Mode48
- RF Test Mode48
  - Radio Tuning and Programming53
Introduction53
Radio Tuning Setup54
Cloning Information55
- Controller Information57
CPS Programming Setup55
Overview57
Radio Power Distribution57
Controller Board58
- General58
- Digital Architecture59
- Controller Schematics61
- Complete Controller Schematic Diagram61
- Controller ASFIC/ON_OFF Schematic Diagram62
- Controller Micro Processor Schematic Diagram63
- Controller Memory Schematic Diagram64
- Controller Audio Power Amplifier Schematic Diagram65
- Controller Interface Schematic Diagram66
- Controller Schematics67
- Complete Controller Schematic Diagram67
- Controller ASFIC/ON_OFF Schematic Diagram68
- Controller Micro Processor Schematic Diagram69
- Controller Memory Schematic Diagram70
- Controller Audio Power Amplifier Schematic Diagram71
- Controller Interface Schematic Diagram72
  - Keypad Board Information73
Theory of Operation73
Troubleshooting Chart73
Parts List (Keypad)74
Keypad Board and Schematic Diagram75
- Keypad Board Top and Bottom View (PCB No. 8485642Z01)75
- Keypad Board Schematic Diagram76
Model Chart77
Section 9A77
- Model Chart and Test Specifications (403-470 Mhz)77
Specifications78
Transmitter79
- General79
Receiver81
- Receiver Front-End81
- Receiver Back-End82
- Automatic Gain Control Circuit83
Frequency Generation Circuitry84
- Synthesizer85
- VCO - Voltage Controlled Oscillator86
Notes for All Schematics and Circuit Boards88
Circuit Board/Schematic Diagrams and Parts List89
- UHF (403-470Mhz) Main Board Top Side PCB No. 8480672Z0189
- UHF (403-470Mhz) Main Board Bottom Side PCB No. 8480672Z0190
- UHF Controls and Switches Schematic Diagram91
- UHF Receiver Front End Schematic Diagram92
- UHF Receiver Back End Schematic Diagram93
- UHF Synthesizer Schematic Diagram94
- UHF Voltage Controlled Oscillator Schematic Diagram95
UHF Transmitter Schematic Diagram96
UHF Harmonic Filter Schematic Diagram97
UHF Radio Parts List98
Circuit Board/Schematic Diagrams and Parts List101
UHF (403-470Mhz) Main Board Bottom Side PCB No. 8480672Z04102
- UHF Controls and Switches Schematic Diagram103
- UHF Receiver Front End Schematic Diagram104
- UHF Receiver Back End Schematic Diagram105
UHF Synthesizer Schematic Diagram106
UHF Voltage Controlled Oscillator Schematic Diagram107
UHF Transmitter Schematic Diagram108
UHF Harmonic Filter Schematic Diagram109
UHF Radio Parts List110
Circuit Board/Schematic Diagrams and Parts List114
UHF (403-470Mhz) Main Board Bottom Side PCB No. 8480672Z06115
- UHF Controls and Switches Schematic Diagram116
- UHF Receiver Front End Schematic Diagram117
UHF Receiver Back End Schematic Diagram118
UHF Synthesizer Schematic Diagram119
UHF Voltage Controlled Oscillator Schematic Diagram120
UHF Transmitter Schematic Diagram121
UHF Harmonic Filter Schematic Diagram122
UHF Radio Parts List123
- Troubleshooting Charts127
- Troubleshooting Flow Chart for Controller127
  - Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)128
  - Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)129
- Troubleshooting Flow Chart for Transmitter130
- Troubleshooting Flow Chart for Synthesizer131
- Troubleshooting Flow Chart for VCO132
Circuit Board/Schematic Diagrams and Parts List145
- VHF (136-174Mhz) Main Board Bottom Side PCB No. 8480675Z01146
- VHF Controls and Switches Schematic Diagram147
- VHF Receiver Front End Schematic Diagram148
- VHF Receiver Back End Schematic Diagram149
- VHF Synthesizer Schematic Diagram150
- VHF Voltage Controlled Oscillator Schematic Diagram151
- VHF Transmitter Schematic Diagram152
- VHF Radio Parts List153
- Circuit Board/Schematic Diagrams and Parts List156
- VHF (136-174Mhz) Main Board Bottom Side PCB No. 8480675Z03157
- VHF Controls and Switches Schematic Diagram158
- VHF Receiver Front End Schematic Diagram159
- VHF Receiver Back End Schematic Diagram160
- VHF Synthesizer Schematic Diagram161
- VHF Voltage Controlled Oscillator Schematic Diagram162
- VHF Transmitter Schematic Diagram163
- VHF Radio Parts List164
- Circuit Board/Schematic Diagrams and Parts List168
- VHF (136-174Mhz) Main Board Bottom Side PCB No. 8480675Z04169
- VHF Controls and Switches Schematic Diagram170
- VHF Receiver Front End Schematic Diagram171
- VHF Receiver Back End Schematic Diagram172
- VHF Synthesizer Schematic Diagram173
- VHF Voltage Controlled Oscillator Schematic Diagram174
- VHF Transmitter Schematic Diagram175
- VHF Radio Parts List176
Troubleshooting Charts181
- Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)182
- Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)183
Keypad-Controller Interconnect Flex187
Schematic for Speaker/MIC Assembly - 0104008J99188

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