
- 2 -
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
Fuse........................................................................................................ 5
Lamp cover switch ........................................................................... 6
Thermal switch.................................................................................. 6
Warning temperature and power failure protection........... 7
Maintenance and Cleaning............................................................... 8
Cleaning the Air Filter ..................................................................... 8
Resetting the Filter Counter ......................................................... 8
Cleaning the Projector Window.................................................. 9
Cleaning.............................................................................................10
Lamp Replacement............................................................................11
Lamp Replacement .......................................................................11
Lamp Replacement Counter Reset ..........................................12
How to check Lamp Used Time.................................................13
Security Function Notice .................................................................14
Security Function Disable............................................................14
Antitheft Alarm Function Disable.............................................14
Network Easy Setup Function........................................................16
Mechanical Disassembly..................................................................20
Optical Parts Disassembly...............................................................37
Optical Parts Location and Direction ..........................................43
Adjustments.........................................................................................44
Adjustments after Parts Replacement ....................................44
Note on Main board Replacement...........................................44
Note on Memory IC Replacement............................................44
Optical Adjustments .........................................................................45
Contrast adjustment......................................................................45
Integrator lens adjustment.........................................................46
Relay lens-Out adjustment .........................................................47
Projection Lens focus adjustment............................................48
Electrical Adjustments......................................................................50
Service Adjustment Menu Operation .....................................50
Circuit Adjustments.......................................................................51
Test Points and Locations............................................................54
Service Adjustment Data Table .................................................55
Chassis Block Diagram......................................................................71
Chassis over view............................................................................71
System control.................................................................................72
Lamp control....................................................................................73
Audio circuit .....................................................................................74
Power supply & protection circuit............................................75
Fan control circuit...........................................................................76
Alarm circuit .....................................................................................77
IIC bus control circuit ....................................................................78
Network (MCI) circuit ....................................................................79
Troubleshooting .................................................................................80
Indicators and Projector Condition..........................................80
No Power ...........................................................................................81
No Picture..........................................................................................82
No Sound...........................................................................................83
Control Port Functions .....................................................................84
Scaler I/O Port Functions (PW190) ...........................................84
IC Block Diagrams...............................................................................86
Electrical Parts List .............................................................................90
Electrical Parts Location...............................................................91
Electrical Parts List..........................................................................92
Mechanical Parts List...................................................................... 119
Cabinet Parts Location............................................................... 119
Mechanical Parts List.................................................................. 124
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