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Contents
SERVICE MANUAL ................................................... 1
Contents ........................................................................ 2
Safety Instructions ......................................................... 3
SAFETY PRECAUTIONS ........................................... 3
PRODUCT SAFETY NOTICE .................................... 3
SERVICE PERSONNEL WARNING ..........................
3
Specifications ................................................................ 4
Circuit Protections ......................................................... 5
Fuse ............................................................................ 5
Thermal switch ........................................................... 5
Lamp cover switch ...................................................... 6
Door switches for automatic slide shutter ................... 6
Warning temperature and power failure protection .... 6
Maintenance and Cleaning ............................................ 7
Cleaning the RGB panels .......................................... 8
Warning Indicator ..................................................... 10
Cleaning the Air Filters ............................................. 11
Resetting the Filter Counter ...................................... 12
Cleaning the Projection Lens .................................... 12
Cleaning the Projector Cabinet ................................. 12
Lamp Replacement ..................................................... 13
Lamp Replacement Counter ..................................... 14
Service Port ................................................................. 16
Mechanical disassemblies ........................................... 17
Optical disassemblies .................................................. 34
Adjustments ................................................................. 44
Adjustments after Parts Replacement ...................... 44
Optical Adjustment ...................................................... 45
Electrical Adjustment ................................................... 47
Service Adjustment Menu Operation ........................ 47
Circuit Adjustment .................................................... 48
Location of Test Points ............................................. 52
Service Adjustment Data Table ................................ 53
Chassis Block Diagram ............................................... 72
Chassis Overview ..................................................... 72
Video signal processing circuit and LCD panel driving
circuit ........................................................................ 73
System Controls ....................................................... 74
Motor driving circuit .................................................. 76
Fan control circuit ..................................................... 78
Power supply circuit and Protection circuit ............... 80
Troubleshooting ........................................................... 82
Indicators and Projector Condition ........................... 83
No Power .................................................................. 84
No Picture ................................................................. 86
Control Port Functions ................................................. 88
Electrical Parts List ...................................................... 90
Electrical Parts Location ........................................... 91
Mechanical parts List ................................................. 109
Cabinet Parts Location ........................................... 109
Optical Parts Location ............................................ 111
Diagrams & Drawings ..................................................A1
Parts description and reading in schematic diagram ...A2
Schematic Diagrams ...................................................A3
Printed Wiring Board Diagrams ...................................A9
Pin description of diode, transistor and IC .................A13
Note on Soldering ......................................................A14
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