Motorola MTM700

CONTENTS MTM700 Mobile Radio / Detailed Service Manual xv
CHAPTER 7 MAINTENANCE
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 1
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 1
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 1
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 1
Cleaning External Plastic Surfaces . . . . . . . . . . . . . . . . . . . . . . 7 - 2
Cleaning Internal Circuit Boards and Components . . . . . . . . . . 7 - 2
Safe Handling of CMOS and LDMOS Devices . . . . . . . . . . . . . . . . . . 7 - 3
Repair Procedures and Techniques — General . . . . . . . . . . . . . . . . . 7 - 4
Parts Replacement and Substitution . . . . . . . . . . . . . . . . . . . . . . . 7 - 4
Disassembling and Reassembling the Radio — General . . . . . . . . . . 7 - 4
Radio Disassembly and Reassembly - Detailed . . . . . . . . . . . . . . 7 - 5
Control Head Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 5
Top Cover Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 6
Transceiver Board Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 7
Reassembly the Radio Chassis And Transceiver Board . . . . . . 7 - 8
Control Head Fitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 8
Standard Control Head - Disassembly . . . . . . . . . . . . . . . . . . . 7 - 9
Standard Control Head - Reassembly . . . . . . . . . . . . . . . . . . . 7 - 10
Remote Mount Head - Disassembly . . . . . . . . . . . . . . . . . . . . 7 - 11
Remote Mount Head - Reassembly . . . . . . . . . . . . . . . . . . . . 7 - 12
Expansion Head - Disassembly . . . . . . . . . . . . . . . . . . . . . . . 7 - 13
Expansion Head - Reassembly . . . . . . . . . . . . . . . . . . . . . . . . 7 - 14
Motorcycle Control Head - Disassembly . . . . . . . . . . . . . . . . . 7 - 15
Motorcycle Control Head - Reassembly . . . . . . . . . . . . . . . . . . . 7 - 16
Service Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 16
EXPLODED VIEWS & PARTS LISTS . . . . . . . . . . . . . . . . . . . . . . . 7 - 17
Transceiver - Exploded View and Parts List . . . . . . . . . . . . . . . . . 7 - 17
Standard Control Head - Exploded View and Parts List . . . . . . . 7 - 19
Expansion Head - Exploded View and Parts List . . . . . . . . . . . . . 7 - 20
Remote Mount Head - Exploded View and Parts List . . . . . . . . . 7 - 21
Motorcycle Control Head - Exploded View and Parts List . . . . . . 7 - 22
CHAPTER 8 SCHEMATICS, PCBS AND PARTS LISTS
Section Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 1
CHAPTER 8.1.1 Transceiver 400MHz (PCB No. 8466519A01_O)
SCHEMATICS and PCBS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.1.1 - 1
CHASSIS_OVERVIEW TRANSCEIVER . . . . . . . . . . . . . . . . 8.1.1 - 2
PCB / Main Board 8466519A01_O / BOTTOM SIDE . . . . . . 8.1.1 - 3
PCB / Main Board 8466519A01_O / TOP SIDE . . . . . . . . . . 8.1.1 - 4
Main Board 8466519A01_O / CNTRL_SUPPLY_VOLTG . . 8.1.1 - 5
Main Board 8466519A01_O / CNTRL_AUDIO_PW_AMP . . 8.1.1 - 6
Main Board 8466519A01_O / CNTRL_I/O . . . . . . . . . . . . . . . 8.1.1 - 7
Main Board 8466519A01_O / CNTRL_CNTL (Sheet1) . . . . . 8.1.1 - 8
Main Board 8466519A01_O / CNTRL_CNTL (Sheet 2) . . . . 8.1.1 - 9
Main Board 8466519A01_O / RF_ABACUS . . . . . . . . . . . . 8.1.1 - 10
Main Board 8466519A01_O / RF_Front_End . . . . . . . . . . . 8.1.1 - 11
Main Board 8466519A01_O / RF_IF . . . . . . . . . . . . . . . . . . 8.1.1 - 12
Main Board 8466519A01_O / RF_FRACN . . . . . . . . . . . . . 8.1.1 - 13
Main Board 8466519A01_O / RF_RX_VCO . . . . . . . . . . . . 8.1.1 - 14
Main Board 8466519A01_O / RF_TX_VCO . . . . . . . . . . . . 8.1.1 - 15
Main Board 8466519A01_O / POWER_AMPLIFIER__PA . 8.1.1 - 16