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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........................................... 15
Adjustments................................................................. 21
Adjustments after Parts Replacement ...................... 21
Optical Adjustments..................................................... 22
Contrast adjustment ................................................. 22
Integrator lens adjustment ........................................ 23
Relay lens-Out adjustment ....................................... 24
Electrical Adjustments ................................................. 25
Service Adjustment Menu Operation........................ 25
Memory IC (IC1371) Replacement........................... 25
Circuit Adjustments................................................... 26
Test Points and Locations ........................................ 30
Service Adjustment Data Table ................................ 31
Chassis Block Diagrams.............................................. 49
Chassis over view..................................................... 49
System control.......................................................... 50
Power supply & protection circuit ............................. 51
Fan control circuit ..................................................... 52
Troubleshooting........................................................... 53
Indicators and Projector Condition ........................... 53
No Power.................................................................. 54
No Picture................................................................. 55
No Sound.................................................................. 56
System Control & I/O Port Functions (IC301)........... 57
Waveform .................................................................... 58
Cleaning ...................................................................... 59
IC Block Diagrams....................................................... 60
Electrical Parts List...................................................... 64
Electrical Parts Location ........................................... 65
Electrical Parts List ................................................... 66
Mechanical Parts List .................................................. 84
Cabinet Parts Location ............................................. 84
Optical Parts Location .............................................. 85
Mechanical Parts List ............................................... 89
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.................A13
Note on Soldering......................................................A14