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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
Lamp Replacement ....................................................... 9
Lamp replacement ...................................................... 9
Resetting the Lamp Counter ..................................... 10
How to check Lamp Used Time ................................ 10
Security Function Notice.............................................. 11
Resetting procedure ................................................. 11
Standby Mode Notice .................................................. 12
Mechanical Disassembly ............................................. 13
Optical Parts Disassembly........................................... 18
Adjustments ................................................................. 25
Adjustments after Parts Replacement ...................... 25
Optical Adjustments..................................................... 26
Contrast adjustment ................................................. 27
Condenser Out lens adjustment ............................... 28
Relay lens-Out adjustment ....................................... 29
Electrical Adjustments ................................................. 30
Service Adjustment Menu Operation ........................ 30
Note on Main Board Replacement ........................... 30
Circuit Adjustments ................................................... 31
Test Points and Locations ........................................ 36
Service Adjustment Data Table ................................ 37
Chassis Block Diagrams.............................................. 55
Chassis over view ..................................................... 55
System control .......................................................... 56
Lamp control ............................................................. 57
Audio circuit .............................................................. 58
Power supply & protection circuit ............................. 59
Fan control circuit ..................................................... 60
IIC bus control circuit ................................................ 61
Troubleshooting ........................................................... 62
Indicators and Projector Condition ........................... 62
No Power .................................................................. 63
No Picture ................................................................. 64
No Sound .................................................................. 65
Control Port Functions ................................................. 66
Scaler I/O Port Functions (PW190) .......................... 66
IC Block Diagrams ....................................................... 67
Parts Location Diagrams ............................................. 72
Mechanical Parts List .................................................. 80
Electrical Parts List ...................................................... 82
Diagrams & Drawings ..................................................A1
Parts description and reading in schematic diagram ...A2
Schematic Diagrams ...................................................A3
Printed Wiring Board Diagrams .................................A11
Pin description of diode, transistor and IC .................A15
Note on Soldering ......................................................A16
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