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Contents
SERVICE MANUAL ................................................................................. 1
Contents ..................................................................................................
Safety Instructions ............................................................................... 3
Safety Precautions ............................................................................ 3
Product Safety Notice ..................................................................... 3
Service Personnel Warning ........................................................... 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 .......................................................1
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 ............................................................5
Service Adjustment Data Table .................................................53
Chassis Block Diagram ......................................................................74
Chassis over view ............................................................................74
Video signal processing circuit ..................................................75
System control .................................................................................76
Fan control circuit ...........................................................................78
Power supply & protection circuit ............................................80
Motor driving circuit ......................................................................8
Troubleshooting .................................................................................85
Indicators and Projector Condition ..........................................85
No Power ...........................................................................................86
No Picture ..........................................................................................88
Control Port Functions .....................................................................90
Scaler I/O Port Functions (PW190) ...........................................90
Electrical Parts List .............................................................................9
Electrical Parts Location ...............................................................93
Electrical Parts List ..........................................................................94
Mechanical Parts List ...................................................................... 11
Cabinet Parts Location ............................................................... 11
Optical Parts Location ................................................................ 114
Mechanical Parts List .................................................................. 118
Diagrams & Drawings ...................................................................... A1
Parts description and reading in schematic diagram .......... A
Schematic Diagrams ........................................................................ A3
Printed Wiring Board Diagrams .................................................... A9
Pin description of diode, transistor and IC .............................A13
Note on Soldering ...........................................................................A14
