iv Table of Contents
December 6, 2004 68P81083C20-D
Safe Handling of CMOS Devices................................................................................................................ 2
Precautions....................................................................................................................................... 2
Parts Replacement and Substitution .......................................................................................................... 3
Rigid Circuit Boards.................................................................................................................................... 3
Specific....................................................................................................................................................... 3
Audio PA Component Replacement Procedure ......................................................................................... 4
For High Power Models .................................................................................................................... 4
Antenna/Power Connector Replacement Procedure.................................................................................. 4
For Low, Mid, and High Power Models.............................................................................................4
Chapter 3 Test Equipment, Service Aids and Tools.......................... 3-1
RecommendedTest Equipment .................................................................................................................. 1
Service Aids and Recommended Tools...................................................................................................... 2
Field Programming ..................................................................................................................................... 2
Mid Power Chassis ........................................................................................................................... 4
High Power Chassis.......................................................................................................................... 4
Chapter 4 Test Mode and Error Codes ............................................... 4-1
Test Mode................................................................................................................................................... 1
General ............................................................................................................................................. 1
Test Mode Features.......................................................................................................................... 1
Test Mode Entry and Exit.................................................................................................................. 1
RF/CH Test Mode Select.................................................................................................................. 2
Error Code Displays.................................................................................................................................... 4
Power-up Display Codes .................................................................................................................. 4
Operational Display Codes ............................................................................................................... 5
Chapter 5 Disassembly & Reassembly and Replacement Procedures.
5-1
General....................................................................................................................................................... 1
Disassembly to Transceiver Board Level Low and Mid Power Models ...................................................... 1
Remove the Control Head ................................................................................................................ 1
Remove Front Housing..................................................................................................................... 2
Remove the Top Cover..................................................................................................................... 2
Mid Power Models ............................................................................................................................ 3
Remove the Cavity Shield................................................................................................................. 3
Remove the Transceiver Board ........................................................................................................ 6
Disassembly to Transceiver Board Level High Power Models ................................................................... 7
Remove the Bottom Cover................................................................................................................ 7
Remove the RF Shield...................................................................................................................... 9
Remove the PA Shield...................................................................................................................... 9
Remove the PA Board ...................................................................................................................... 9
Remove the RF Board .................................................................................................................... 10
Disassembly of the Control Head ............................................................................................................. 10
Dash Mount Versions...................................................................................................................... 10
Remote Mount Versions ................................................................................................................. 11
Model I ............................................................................................................................................ 11
Models II & III.................................................................................................................................. 11