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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 Filters ..................................................... 7
Resetting the Filter Counter ........................................ 7
Attaching the Lens Cap .............................................. 8
Cleaning the Projection Lens ...................................... 8
Lamp replacement ...................................................... 9
Resetting the Lamp Counter ..................................... 10
How to check Lamp Used Time ................................ 10
Security Function Notice.............................................. 11
Resetting procedure ................................................. 11
Mechanical Disassembly ............................................. 12
Optical Parts Disassembly ........................................... 17
Adjustments ................................................................. 24
Adjustments after Parts Replacement ...................... 24
Optical Adjustments ..................................................... 25
Contrast adjustment.................................................. 26
Condenser Out lens adjustment ............................... 27
Relay lens-Out adjustment ....................................... 28
Electrical Adjustments ................................................. 29
Service Adjustment Menu Operation ........................ 29
Memory IC (IC1371) Replacement ........................... 29
Circuit Adjustments ................................................... 30
Test Points and Locations ......................................... 35
Service Adjustment Data Table ................................. 36
Chassis Block Diagrams .............................................. 54
Chassis over view ..................................................... 54
System control .......................................................... 55
Lamp control ............................................................. 56
Audio circuit .............................................................. 57
Power supply & protection circuit .............................. 58
Fan control circuit ..................................................... 59
IIC bus control circuit ................................................ 60
Troubleshooting ........................................................... 61
Indicators and Projector Condition ........................... 61
No Power .................................................................. 62
No Picture ................................................................. 63
No Sound .................................................................. 64
Control Port Functions ................................................. 65
Scaler I/O Port Functions (PW190) .......................... 65
IC Block Diagrams ....................................................... 66
Electrical Parts List ...................................................... 71
Electrical Parts Location ........................................... 72
Electrical Parts List ................................................... 73
Mechanical Parts List .................................................. 88
Cabinet Parts Location ............................................. 88
Optical Parts Location .............................................. 89
Mechanical Parts List ............................................... 95
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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