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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 ...............................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
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 ................................................................. 51
Adjustments after Parts Replacement........................... 51
Note on Main Board Replacement ................................ 51
Optical Adjustments .................................................... 52
Optical adjustment location ...........................................52
Before Adjustment .........................................................53
1. Optical Center adjustment .........................................55
2. PBS adjustment .........................................................59
3. Contrast adjustment ..................................................60
4. Back focus adjustment .............................................. 61
5. Convergence adjustment ..........................................62
Adjustment ....................................................................65
Electrical Adjustments ................................................. 66
Service Adjustment Menu Operation ............................66
Circuit Adjustments .......................................................67
Test Points and Locations ............................................. 71
Service Adjustment Data Table .....................................72
Chassis Description .................................................. 147
Chassis over view........................................................ 147
Boards Connection ......................................................148
Troubleshooting ......................................................... 149
No Picture .................................................................... 149
No Power ..................................................................... 153
Power Supplies to Boards ...........................................154
Power (AC) ..................................................................155
Power (DC) ................................................................. 155
Power (PFC) ................................................................ 156
Power Supply and Power Fail Detection ..................... 157
Power Drive and Power Failure Signals ......................160
Fan Control .................................................................. 161
Temperature Abnormality ............................................ 162
Power Lens and Shutter System and Abnormality ...... 163
Lamp Abnormality .......................................................164
Power failure detection system ...................................165
Error information table .................................................165
Error History Log .........................................................166
Diagnosis of Power Failure with RS-232C port ...........167
Diagnosis procedure ...................................................167
Indicators and Projector Condition ..............................168
Serial Control ............................................................. 171
Serial Control Interface ............................................... 171
Control Port Functions............................................... 173
IC Block Diagrams..................................................... 176
Parts Location Diagrams ........................................... 182
Mechanical Parts List ................................................ 196
Electrical Parts List .................................................... 198
Diagrams & Drawings .................................................. A1
Parts description and reading in schematic diagram ..A2
Schematic Diagrams ...................................................A3
Printed Wiring Board Diagrams ................................. A17
Pin description of diode, transistor and IC ................A27
Note on Soldering ......................................................A28
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