Table Of Contents; Contents - Eiki LC-WUL100 Service Manual

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
Thermal protectors (SW902) ...................................... 5
Mechanical sensor switches (SW901, SW1891) ......... 6
Temperature sensors, wind sensors........................... 7
Power failure and fan lock detection ........................... 8
Maintenance .................................................................. 9
Replacing the Filter Cartridge ..................................... 9
Lamp Replacement ...................................................11
How to check Lamp Used Time ............................... 12
Quick maintenance ................................................... 13
Lens Installation ........................................................ 14
Using the Lens Antitheft screw ................................. 15
Cleaning ................................................................... 16
Cleaning the Projection Lens ................................... 16
Cleaning the Projector Cabinet ................................. 16
Security Function Notice ............................................. 17
Mechanical Disassembly ............................................. 18
Optical Parts Disassembly .......................................... 27
Adjustments ................................................................. 33
Adjustments after Parts Replacement ...................... 33
Note on Main Board Replacement ........................... 33
Service Adjustment Menu Operation ....................... 34
Optical Adjustment ...................................................... 35
1. Optical axis adjustment ........................................ 36
2. Contrast adjustment ............................................. 40
Electrical Adjustments ................................................. 41
Circuit Adjustments ................................................... 41
Test Points and Locations ........................................ 45
Service Adjustment Data Table ................................ 46
Troubleshooting ........................................................... 66
Chassis over view ..................................................... 66
No Power .................................................................. 67
No Power (Power supply) ......................................... 68
No Power (Power supply) ......................................... 69
No Power (Fan control) ............................................. 70
No Power (Lamp control) .......................................... 71
Temperature Abnormality ......................................... 72
No Picture ................................................................. 73
No Sound .................................................................. 74
Motor control problems ............................................. 75
Bus control ................................................................ 76
LED drive & RC control ........................................... 77
Indicators and Projector Condition ........................... 78
Power failure detection system ................................ 81
Diagnosis of Power Failure with RS-232C port ........ 85
Serial Control Interface ............................................. 86
Control Port Functions ................................................. 88
IC Block Diagrams ....................................................... 91
Parts Location Diagrams ........................................... 101
Mechanical Parts List .................................................110
Electrical Parts List .....................................................112
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................. A19
Note on Soldering ......................................................A20
-2-