Table Of Contents - LG RD-JS31 Service Manual

Chapter 1 System Introduction
Technical Specification .......................................................................................................1
System Block Diagram .......................................................................................................3
Optics Conceptual Drawing................................................................................................4
Chapter 2 Firmware Update
Setup Tool / Equipment.......................................................................................................5
Upgrading Procedure .........................................................................................................6
Chapter 3 Machine Dissassembly and Replacement
General Information ............................................................................................................8
Disassemble Lamp Module................................................................................................9
Disassemble IO Cover ......................................................................................................10
Disassemble Top Cover and Front Fan............................................................................11
Disassemble Main Board..................................... ..............................................................12
Disassemble Middle Cover...............................................................................................13
Disassemble Ballast Module..............................................................................................14
Dissassemble Optical Engine ..........................................................................................15
Disassemble Power Outlet Set..........................................................................................16
Disassemble Power Board................................................................................................17
Disassemble Foot Screw Assembly................................................................................. 18
Exploded Overview...........................................................................................................19
Chapter 4 Trouble shooting
Video Signal troubleshooting............................................................................................21
Operation FunctionTroubleshooting..................................................................................24
Power SourceTroubleshooting..........................................................................................25
Function Test and Alignment...............................................................................................26
Equipment Needed...................................................................................................26
Test Condition............................................................................................................26
Display Modes and Patterns ............................................................................................27
Compatible Modes ...................................................................................................27
Function Test Display Pattern...................................................................................28

Table of Contents

1
5
7
20