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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
Thermostats (SW903, SW904) .......................................5
Mechanical sensor switches (SW902, SW6581) ............
6
Temperature sensors, wind sensors and thermistor .......7
Power failure and fan lock detection ...............................8
Maintenance .................................................................. 9
Filter Instructions .............................................................9
Replacing the Filter Cartridge ....................................... 10
Resetting the Filter Counter .......................................... 11
Resetting the Scroll Counter ......................................... 11
Lamp Management ....................................................... 12
Lamp Replacement ....................................................... 13
Resetting the Lamp Counter ......................................... 14
Checking the projector used time and lamp used time . 14
Quick Maintenance ....................................................... 15
Cleaning the optical parts..............................................16
Cleaning the Projection Lens ........................................16
Cleaning the Projector Cabinet .....................................16
Security Function Notice ............................................. 17
Lens Mounting ............................................................. 18
Mechanical Disassembly............................................. 22
Mechanical disassembly flow chart...............................22
Mechanical disassembly ...............................................23
Optical Parts Disassembly .......................................... 39
Adjustments ................................................................. 50
Adjustments after Parts Replacement...........................50
Note on Main Board Replacement ................................50
Optical Adjustments .................................................... 51
Optical adjustment location ...........................................51
Before Adjustment .........................................................52
1. Optical Center adjustment .........................................54
2. PBS adjustment .........................................................
58
3. Contrast adjustment ..................................................59
4. Back focus adjustment ..............................................60
5. Convergence adjustment ..........................................61
Adjustment ....................................................................64
Electrical Adjustments ................................................. 65
Service Adjustment Menu Operation ............................65
Circuit Adjustments .......................................................66
Test Points and Locations .............................................70
Service Adjustment Data Table ..................................... 71
Chassis Description ...................................................111
Chassis over view.........................................................111
Boards Connection ...................................................... 112
Troubleshooting ..........................................................113
No Picture .................................................................... 113
No Power ..................................................................... 118
Power Supply and Power Fail Detection ..................... 119
Power failure detection tree (1/2) ................................12
0
Power failure detection tree (2/2) ................................ 12
1
Power (DC) power supply system ...............................122
Fan Control System ..................................................... 123
Temperature Abnormality ............................................ 124
Power Lens and Shutter System and Abnormality ...... 125
Lamp Abnormality .......................................................126
Power failure detection system ...................................127
Error information table ................................................. 127
Error History Log ......................................................... 128
Diagnosis of Power Failure with RS-232C port ...........12
9
Diagnosis procedure ...................................................129
Indicators and Projector Condition ..............................130
Serial Control ............................................................. 133
Serial Control Interface ...............................................133
Control Port Functions............................................... 135
Waveform ...................................................................141
IC Block Diagrams..................................................... 142
Parts Location Diagrams ........................................... 147
Mechanical Parts List ................................................ 161
Electrical Parts List .................................................... 163
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 ................A23
Note on Soldering ......................................................A24
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