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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
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 and Standby mode Notice............14
Security Function Disable............................................................14
Standby mode notice ...................................................................14
Network Easy Setup Function........................................................15
Mechanical Disassembly..................................................................19
Optical Parts Disassembly...............................................................35
Optical Parts Location and Direction ..........................................41
Adjustments.........................................................................................42
Adjustments after Parts Replacement ....................................42
Note on Main board Replacement...........................................42
Optical Adjustments .........................................................................43
Contrast adjustment......................................................................43
Integrator lens adjustment.........................................................44
Relay lens-Out adjustment .........................................................45
Projection Lens focus adjustment............................................46
Electrical Adjustments......................................................................48
Service Adjustment Menu Operation .....................................48
Memory IC (IC1391) Replacement............................................48
Circuit Adjustments.......................................................................49
Test Points and Locations............................................................52
Service Adjustment Data Table .................................................53
Chassis Block Diagram......................................................................69
Chassis over view............................................................................69
System control.................................................................................70
Lamp control....................................................................................71
Audio circuit .....................................................................................72
Power supply & protection circuit............................................73
Eco-Standby (Sub-CPU)................................................................74
Fan control circuit...........................................................................75
IIC bus control circuit ....................................................................76
Network (MCI) circuit ....................................................................77
Troubleshooting .................................................................................78
Indicators and Projector Condition..........................................78
No Power ...........................................................................................79
No Picture..........................................................................................80
No Sound...........................................................................................81
Control Port Functions .....................................................................82
Scaler I/O Port Functions (PW190) ...........................................82
IC Block Diagrams...............................................................................84
Electrical Parts List .............................................................................88
Electrical Parts Location...............................................................89
Electrical Parts List..........................................................................90
Mechanical Parts List...................................................................... 119
Mechanical Parts Location ....................................................... 119
Optical Parts Location................................................................ 121
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