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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
Air filter care and cleaning .......................................... 6
Security Function Notice ................................................ 7
Lamp Replacement ....................................................... 8
Lamp replacement ...................................................... 8
How to reset Lamp Replace Counter ......................... 8
How to check Lamp Used Time .................................. 8
Mechanical Disassembly ............................................... 9
Optical Parts Disassembly ........................................... 14
Adjustments ................................................................. 20
Adjustments after Parts Replacement ...................... 20
Optical Adjustments ..................................................... 21
Contrast adjustment ................................................. 21
Integrator lens adjustment ........................................ 22
Relay lens-Out adjustment ....................................... 23
Electrical Adjustments ................................................. 24
Service Adjustment Menu Operation ........................ 24
Memory IC (IC1371) Replacement ........................... 24
Circuit Adjustments ................................................... 25
Test Points and Locations ........................................ 28
Service Adjustment Data Table ................................ 29
Chassis Block Diagrams .............................................. 41
Chassis over view ..................................................... 41
System control .......................................................... 42
Power supply & protection circuit ............................. 43
Fan control circuit ..................................................... 44
Troubleshooting ........................................................... 45
Indicators and Projector Condition ........................... 45
No Power .................................................................. 46
No Picture ................................................................. 47
No Sound .................................................................. 48
Control Port Functions ................................................. 49
System Control I/O Port Functions (IC301) .............. 49
IIC Bus DA Converter Port Functions (IC3531) ....... 50
Waveform .................................................................... 51
Cleaning ...................................................................... 52
IC Block Diagrams ....................................................... 53
Electrical Parts List ...................................................... 56
Electrical Parts Location ........................................... 57
Electrical Parts List ................................................... 58
Mechanical Parts List .................................................. 75
Cabinet Parts Location ............................................. 75
Optical Parts Location .............................................. 76
Mechanical Parts List ............................................... 80
Diagrams & Drawings ..................................................A1
Parts description and reading in schematic diagram ...A2
Schematic Diagrams ...................................................A3
Printed Wiring Board Diagrams ...................................A9
Pin description of diode, transistor and IC .................A11
Note on Soldering ......................................................A12
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