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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
Thermal switch ........................................................... 5
Lamp cover switch ...................................................... 5
Fuse ............................................................................ 5
Warning temperature and power failure protection ..... 6
Maintenance .................................................................. 7
Replace the Filters ...................................................... 7
Resetting the Filter Counter ........................................ 7
Cleaning ..................................................................... 8
Cleaning the Projection Lens ...................................... 8
Cleaning the Projector Cabinet ................................... 8
Lamp Replacement ....................................................... 9
Lamp replacement ...................................................... 9
How to check Lamp Used Time ................................ 10
Warning Message on the non-standard lamp used .. 10
Security Function Notice.............................................. 11
Resetting procedure ................................................. 11
Standby mode Notice .................................................. 12
Mechanical Disassembly ............................................. 13
Optical Parts Disassembly ........................................... 19
Adjustments ................................................................. 24
Adjustments after Parts Replacement ...................... 24
Note on Main Board Replacement ........................... 24
Optical Adjustments ..................................................... 25
Contrast adjustment.................................................. 25
Optical center adjustment ......................................... 26
Electrical Adjustments ................................................. 29
Service Adjustment Menu Operation ........................ 29
Circuit Adjustments ................................................... 30
Test Points and Locations ......................................... 34
Service Adjustment Data Table ................................. 35
Chassis Block Diagrams .............................................. 52
Chassis over view ..................................................... 52
System control .......................................................... 53
Lamp control ............................................................. 54
Audio circuit .............................................................. 55
Power supply & protection circuit .............................. 56
Fan control circuit ..................................................... 57
Troubleshooting ........................................................... 58
Indicators and Projector Condition ........................... 58
No Power .................................................................. 59
No Picture ................................................................. 60
No Sound .................................................................. 61
Control Port Functions ................................................. 62
Scaler I/O Port Functions (PW190) .......................... 62
IC Block Diagrams ....................................................... 63
Parts Location Diagrams ............................................. 69
Mechanical Parts List .................................................. 76
Electrical Parts List ...................................................... 77
Diagrams & Drawings ..................................................A1
Parts description and reading in schematic diagram ...A2
Schematic Diagrams ...................................................A3
Printed Wiring Board Drawings....................................A9
Pin description of diode, transistor and IC .................A13
Note on Soldering ......................................................A14
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