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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 Filter ...................................................... 7
Resetting the Filter Counter ........................................ 7
Lamp Replacement .................................................... 8
Resetting the Lamp Counter ....................................... 9
How to check Lamp Used Time .................................. 9
Cleaning ................................................................... 10
Security Function Notice.............................................. 11
Security Function Disable ......................................... 11
Mechanical Disassembly ............................................. 12
Optical Parts Disassembly ........................................... 16
Adjustments ................................................................. 22
Adjustments after Parts Replacement ...................... 22
Optical Adjustments ..................................................... 23
Contrast adjustment.................................................. 23
Integrator lens adjustment ........................................ 24
Relay lens-Out adjustment ....................................... 25
Electrical Adjustments ................................................. 26
Service Adjustment Menu Operation ........................ 26
Memory IC (IC1391) Replacement ........................... 26
Circuit Adjustments ................................................... 27
Test Points and Locations ......................................... 31
Service Adjustment Data Table ................................. 32
Chassis Block Diagrams .............................................. 45
Chassis over view ..................................................... 45
System control .......................................................... 46
Lamp control ............................................................. 47
Audio circuit .............................................................. 48
Power supply & protection circuit .............................. 49
Fan control circuit ..................................................... 50
IIC bus control circuit ................................................ 51
Network (MCI) circuit ................................................ 52
Troubleshooting ........................................................... 53
Indicators and Projector Condition ........................... 53
No Power .................................................................. 54
No Picture ................................................................. 55
No Sound .................................................................. 56
Control Port Functions ................................................. 57
Scaler I/O Port Functions (PW190) .......................... 57
IIC Bus D/A Converter Port Functions (M62334) ...... 58
I/O Expander Port Functions (TE7783) ................... 59
Waveform .................................................................... 60
IC Block Diagrams ....................................................... 61
Electrical Parts List ...................................................... 69
Electrical Parts Location ........................................... 70
Electrical Parts List ................................................... 71
Mechanical Parts List .................................................. 98
Cabinet Parts Location ............................................. 98
Optical Parts Location .............................................. 99
Mechanical Parts List ............................................. 103
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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