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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 ............................................... 74
Chassis Overview ..................................................... 74
Video signal processing circuit and LCD panel driving
circuit ........................................................................ 75
System Controls ....................................................... 76
Fan control circuit ..................................................... 78
Fan and sensor location ........................................... 78
Power supply circuit and Protection circuit (1) .......... 80
Power supply circuit and Protection circuit (2) .......... 81
Motor driving circuit .................................................. 82
Troubleshooting ........................................................... 85
Indicators and Projector Condition ........................... 85
No Power .................................................................. 86
No Picture ................................................................. 88
Control Port Functions ................................................. 90
Electrical Parts List ...................................................... 92
Electrical Parts Location ........................................... 93
Mechanical Parts List ................................................ 116
Cabinet Parts Location ........................................... 116
Optical Parts Location ............................................ 118
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
