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Table of Contents
Chapter 1 INTRODUCTION
1.0 Scope of Manual.................................................................................................. 1-1
2.0 Warranty and Service Support ............................................................................ 1-1
2.1 Warranty Period and Return Instructions ....................................................... 1-1
2.2 After Warranty Period..................................................................................... 1-1
2.3 European Radio Support Centre (ERSC) ...................................................... 1-2
2.4 Piece Parts..................................................................................................... 1-2
2.5 Technical Support .......................................................................................... 1-3
3.0 Radio Model Information ..................................................................................... 1-4
Chapter 2 INTRINSICALLY SAFE RADIO INFORMATION
1.0 FMRC Approved Equipment................................................................................ 2-1
2.0 Repair of FMRC Approved Products ................................................................... 2-2
2.1 Repair............................................................................................................. 2-2
2.2 Relabelling ..................................................................................................... 2-2
2.3 Do Not Substitute Options or Accessories ..................................................... 2-3
Chapter 3 MAINTENANCE
1.0 Introduction.......................................................................................................... 3-1
2.0 Preventive Maintenance ...................................................................................... 3-1
2.1 Inspection....................................................................................................... 3-1
2.2 Cleaning Procedures...................................................................................... 3-1
3.0 Safe Handling of CMOS and LDMOS Devices.................................................... 3-2
4.0 Repair Procedures and Techniques — General.................................................. 3-3
5.0 Disassembling and Reassembling the Radio — General.................................... 3-3
6.0 Radio Disassembly — Detailed ........................................................................... 3-4
6.1 Front Cover from Chassis Disassembly......................................................... 3-4
6.2 Chassis Assembly Disassembly .................................................................... 3-6
6.3 Keypad, Display, and Keypad/Option Board Disassembly ............................ 3-7
6.4 Speaker, Microphone, and Universal Connector Flex Disassembly .............. 3-8
6.5 PTT Disassembly ........................................................................................... 3-9
6.6 Controller Board Disassembly (GP344/GP388)........................................... 3-10
6.7 Control Top Disassembly ............................................................................. 3-10
7.0 Radio Reassembly — Detailed.......................................................................... 3-10
7.1 Control Top Reassembly.............................................................................. 3-10
7.2 Controller Board Reassembly (GP344/GP388) ........................................... 3-10
7.3 PTT Reassembly.......................................................................................... 3-11
7.4 Speaker, Microphone, and Universal Connector Flex Reassembly............. 3-11
7.5 Keypad, Display, and Keypad Option Board Reassembly ........................... 3-11