Table Of Contents; Contents - Sanyo PLC-WM4500L 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 .................................................. 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 ................................................................. 34
Adjustments after Parts Replacement ...................... 34
Note on Main Board Replacement ........................... 34
Service Adjustment Menu Operation ....................... 35
Optical Adjustment ...................................................... 36
1. Optical axis adjustment ........................................ 37
2. Contrast adjustment ............................................. 41
Electrical Adjustments ................................................. 42
Circuit Adjustments ................................................... 42
Test Points and Locations ........................................ 46
Service Adjustment Data Table ................................ 47
Troubleshooting ........................................................... 64
Chassis over view ..................................................... 64
No Power .................................................................. 65
No Power (Power supply) ......................................... 66
No Power (Power supply) ......................................... 67
No Power (Fan control) ............................................. 68
No Power (Lamp control) .......................................... 69
Temperature Abnormality ......................................... 70
No Picture ................................................................. 71
No Sound .................................................................. 72
Motor control problems ............................................. 73
Bus control ................................................................ 74
LED drive & RC control ........................................... 75
Indicators and Projector Condition ........................... 76
Power failure detection system ................................ 79
Diagnosis of Power Failure with RS-232C port ........ 83
Serial Control Interface ............................................. 84
Control Port Functions ................................................. 86
IC Block Diagrams ....................................................... 88
Parts Location Diagrams ............................................. 97
Mechanical Parts List ................................................ 106
Electrical Parts List .................................................... 108
Diagrams & Drawings .................................................. A1
Parts description and reading in schematic diagram ..A2
Schematic Diagrams ...................................................A3
Printed Wiring Board Diagrams ................................. A11
Pin description of diode, transistor and IC................. A15
Note on Soldering ...................................................... A16
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