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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
Note on Main Board 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
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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