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■ Contents
SERVICE MANUAL ................................................................................. 1
Contents .................................................................................................. 2
Safety Instructions ............................................................................... 3
Safety Precautions ............................................................................ 3
Product Safety Notice ..................................................................... 3
Service Personnel Warning ........................................................... 3
Battery Replacement Notice......................................................... 3
Specifications ......................................................................................... 4
Circuit Protections ................................................................................ 5
Fuse........................................................................................................ 5
Lamp cover switch ........................................................................... 6
Thermal switch .................................................................................. 6
Warning temperature and power failure protection ........... 6
Maintenance and Cleaning ............................................................... 7
Cleaning the Air Filter ...................................................................11
Resetting the Filter Counter .......................................................12
Lamp Replacement ............................................................................13
Lamp Replacement Counter ......................................................14
How to check Lamp Used Time .................................................15
Service port Notice ............................................................................16
Mechanical Disassembly..................................................................17
Optical Parts Disassembly ...............................................................34
Optical parts location and direction ........................................40
Adjustments .........................................................................................44
Adjustments after Parts Replacement ....................................44
Optical Adjustments .........................................................................45
Contrast adjustment......................................................................45
Electrical Adjustments ......................................................................47
Service Adjustment Menu Operation .....................................47
Circuit Adjustments .......................................................................48
Test Points and Locations ............................................................52
Service Adjustment Data Table .................................................53
Chassis Block Diagram ......................................................................72
Chassis over view ............................................................................72
Video signal processing circuit ..................................................73
System control .................................................................................74
Motor driving circuit ......................................................................76
Fan control circuit ...........................................................................78
Power supply & protection circuit ............................................80
Troubleshooting .................................................................................82
Indicators and Projector Condition ..........................................83
No Power ...........................................................................................84
No Picture ..........................................................................................86
Control Port Functions .....................................................................88
Scaler I/O Port Functions (PW190) ...........................................88
Electrical Parts List .............................................................................90
Electrical Parts Location ...............................................................91
Electrical Parts List ..........................................................................92
Mechanical Parts List ...................................................................... 106
Cabinet Parts Location ............................................................... 106
Optical Parts Location ................................................................ 108
Mechanical Parts List .................................................................. 112
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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General
Weight and Dimensions
