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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
Fuse ............................................................................ 5
Lamp cover switch ......................................................
5
Warning temperature and power failure protection ....
6
Maintenance .................................................................. 7
Replacing the Filters ...................................................
7
Resetting the Filter Counter ........................................
7
Lamp Replacement ....................................................
8
Resetting the Lamp Counter .......................................
9
How to check Lamp Used Time ..................................
9
Attaching the Lens Cover .........................................
10
Cleaning the Projector ..............................................
10
Cleaning the Projection Lens ....................................
10
Cleaning the Projector Cabinet .................................
10
Security Function Notice ..............................................
11
Standby Mode Notice ..................................................
12
Mechanical Disassembly .............................................
13
Optical Parts Disassembly ...........................................
19
Adjustments ................................................................. 25
Adjustments after Parts Replacement ......................
25
Note on Main Board Replacement ...........................
25
Optical Adjustments .....................................................
26
Contrast adjustment .................................................
26
Condenser lens (Out) adjustment .............................
27
Relay lens (Out) adjustment .....................................
28
Electrical Adjustments .................................................
29
Service Adjustment Menu Operation ........................
29
Circuit Adjustments ...................................................
29
Test Points and Locations ........................................
33
Service Adjustment Data Table ................................
34
Chassis Block Diagrams ..............................................
48
Chassis over view .....................................................
48
System control ..........................................................
49
Power supply & protection circuit .............................
50
Fan control circuit .....................................................
51
Troubleshooting ........................................................... 52
Indicators and Projector Condition ...........................
52
No Power ..................................................................
53
No Picture .................................................................
54
No Sound ..................................................................
55
Control Port Functions .................................................
56
Scaler I/O Port Functions (PW190) ..........................
56
IC Block Diagrams .......................................................
57
Parts Location Diagrams .............................................
62
Mechanical Parts List ..................................................
69
Electrical Parts List ......................................................
71
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 .................
A11
Note on Soldering ......................................................
A12
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