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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
Cleaning the Air Filter ................................................. 7
Resetting the Filter Counter ........................................ 7
Attaching the Lens Cover ........................................... 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 ........................................... 18
Adjustments ................................................................. 24
Adjustments after Parts Replacement ...................... 24
Optical Adjustments ..................................................... 25
Contrast adjustment.................................................. 25
Integrator lens adjustment ........................................ 26
Relay lens-Out adjustment ....................................... 27
Electrical Adjustments ................................................. 28
Service Adjustment Menu Operation ........................ 28
Memory IC (IC1371) Replacement ........................... 28
Circuit Adjustments ................................................... 29
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
IIC bus control circuit ................................................ 58
Network (MCI) circuit ................................................ 59
Troubleshooting ........................................................... 60
Indicators and Projector Condition ........................... 60
No Power .................................................................. 61
No Picture ................................................................. 62
No Sound .................................................................. 63
Control Port Functions ................................................. 64
Scaler I/O Port Functions (PW190) .......................... 64
I/O Expander Port Functions (TE7783) ................... 65
Electrical Parts List ...................................................... 72
Electrical Parts Location ........................................... 73
Electrical Parts List ................................................... 74
Mechanical Parts List ................................................ 102
Cabinet Parts Location ........................................... 102
Optical Parts Location ............................................ 103
Mechanical Parts List ............................................. 107
Diagrams & Drawings ..................................................A1
Parts description and reading in schematic diagram ...A2
Schematic Diagrams ...................................................A3
Printed Wiring Board Diagrams .................................A13
Pin description of diode, transistor and IC .................A17
Note on Soldering ......................................................A18
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