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Contents
SERVICE MANUAL ....................................................... 1
Contents ........................................................................ 2
Safety Instructions ......................................................... 3
Safety Precautions ..................................................... 3
Product Safety Notice ................................................. 3
Service Personnel Warning ........................................ 3
Battery Replacement Notice ....................................... 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
Antitheft Alarm 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.............................................. 48
Chassis over view ..................................................... 48
System control .......................................................... 49
Lamp control ............................................................. 50
Audio circuit .............................................................. 51
Power supply & protection circuit ............................. 52
Fan control circuit ..................................................... 53
Alarm circuit .............................................................. 54
IIC bus control circuit ................................................ 55
Network (MCI) circuit ................................................ 56
Troubleshooting ........................................................... 57
Indicators and Projector Condition ........................... 57
No Power .................................................................. 58
No Picture ................................................................. 59
No Sound .................................................................. 60
Control Port Functions ................................................. 61
Scaler I/O Port Functions (PW190) .......................... 61
I/O Expander Port Functions (TE7783) ................... 63
Waveform .................................................................... 64
IC Block Diagrams ....................................................... 65
Electrical Parts List ...................................................... 72
Electrical Parts Location ........................................... 73
Electrical Parts List ................................................... 74
Mechanical Parts List ................................................ 103
Cabinet Parts Location ........................................... 103
Optical Parts Location ............................................ 104
Mechanical Parts List ............................................. 108
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 .................A19
Note on Soldering ......................................................A20
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