- 2 -
Contents
SERVICE MANUAL ................................................... 1
Contents ........................................................................ 2
Safety Instructions .........................................................
3
Safety Precautions ......................................................
3
Product Safety Notice .................................................
3
Service Personnel Warning ........................................
3
Specifications ................................................................
4
Safety
Protections ......................................................... 5
1. Fuse ........................................................................
5
2. Thermal switches ....................................................
5
3. Lamp cover switches ...............................................
6
4. Temp. and airflow sensors ......................................
7
5. Power failure and fan lock
detection ....................... 7
Air Filter Replacement ................................................... 8
Lamp Replacement ....................................................... 9
How to Reset the Lamp or Filter Timer ........................
10
Mechanical Disassembl
ies .......................................... 11
Optical Parts Disassemblies ........................................ 23
LCD Panel
Replacement ............................................. 30
Adjustments ................................................................. 31
PIN Code Reset ........................................................ 31
Adjustments after Parts Replacement ......................
31
Optical Adjustments ..................................................... 32
1. Optical Center adjustment ....................................
32
2. Contrast adjustment ..............................................
38
3. Convergence service adjustment ..........................
39
4. Back focus
adjustment .......................................... 41
Electrical
Adjustments ................................................. 42
1. Service Adjustment Menu Operation ....................
42
To enter the service mode ........................................
42
2. Circuit Adjustments ...............................................
43
3. Test points and locations .......................................
47
4. Service Adjustment Data Table ............................. 48
Chassis Description & Troubleshooting .......................
65
1. Chassis Overview .................................................
65
2. Signal Input and Decoding Stage .........................
66
3. LCD Drive Stage ................................................... 68
4. Lamp Control ........................................................ 70
5. Fan Control ........................................................... 72
6. Motor Control ........................................................ 74
7. System Control .................................................... 76
8. Power Supply and Failure Detection ..................... 79
9. Diagnosis of Failure with LED indication ............... 81
10. Diagnosis of Power Failure with RS-232C port ... 83
Control Port Functions .................................................
87
Cleaning ...................................................................... 98
IC Block Diagrams .......................................................
99
Electrical Parts Lis
t .................................................... 105
Electrical Parts Location .........................................
106
Electrical Parts L
ist ................................................. 109
Mechanical Parts List ................................................
147
Cabinet Parts Location ...........................................
147
Chassis Parts Location ........................................... 148
Optical Parts Location ............................................ 150
Mechanical Parts List .............................................
159
Diagrams & Drawings ..................................................
A1
Parts description and reading in schematic diagram ...
A2
Schematic Diagrams ...................................................
A3
Printed Wiring Board Diagrams .................................
A15
Pin description of diode, transistor and IC .................
A23
To Next Page
Loading...
Need help?
General
Weight and Dimensions
