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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
Resetting procedure ................................................. 11
Standby mode Notice .................................................. 12
Mechanical Disassembly ............................................. 13
Optical Parts Disassembly........................................... 17
Adjustments ................................................................. 23
Adjustments after Parts Replacement ...................... 23
Optical Adjustments..................................................... 24
Contrast adjustment ................................................. 24
Integrator lens adjustment ........................................ 25
Relay lens-Out adjustment ....................................... 26
Electrical Adjustments ................................................. 27
Service Adjustment Menu Operation ........................ 27
Memory IC (IC1391) Replacement ........................... 27
Circuit Adjustments ................................................... 28
Test Points and Locations ........................................ 34
Service Adjustment Data Table ................................ 35
Chassis Block Diagrams.............................................. 53
Chassis over view ..................................................... 53
System control .......................................................... 54
Lamp control ............................................................. 55
Audio circuit .............................................................. 56
Power supply & protection circuit ............................. 57
Fan control circuit ..................................................... 58
IIC bus control circuit ................................................ 59
Network 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 (PW392) .......................... 65
I/O Expander Port Functions (TE7783) ................... 66
IC Block Diagrams ....................................................... 67
Parts Location Diagrams ............................................ 74
Mechanical Parts List .................................................. 80
Electrical Parts List ...................................................... 82
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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General
Weight and Dimensions
