Sanyo PLC-WTC500L - Table of Contents; Contents

-2-
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 (SW901, SW902) ........................ 5
Mechanical sensor switches (SW67A, SW7641) ........ 6
Temperature sensors, wind sensors .......................... 7
Power failure and fan lock detection .......................... 8
Maintenance .................................................................. 9
Replacing the Filter Cartridge .................................... 9
Lamp Selection System ............................................ 11
Lamp Replacement .................................................. 12
How to check Lamp Used Time ............................... 13
Cleaning ................................................................... 14
Quick maintenance ................................................... 15
Lens Installation ....................................................... 16
Using the Lens Antitheft screw ................................. 17
Security Function Notice ............................................. 18
Mechanical Disassembly............................................. 19
Optical Parts Disassembly .......................................... 34
Adjustments ................................................................. 45
Adjustments after Parts Replacement ...................... 45
Note on Main Board Replacement ........................... 45
Service Adjustment Menu Operation ....................... 46
Optical Adjustment ...................................................... 47
1. Optical axis adjustment ........................................ 48
2. Mirror adjustment ................................................. 51
3. Contrast adjustment ............................................. 52
Electrical Adjustments ................................................. 53
Circuit Adjustments .................................................. 53
Test Points and Locations ........................................ 57
Service Adjustment Data Table ................................ 58
Chassis Description .................................................... 76
Chassis over view ..................................................... 76
Input & signal processing stage ............................... 77
Audio output stage ................................................... 78
Lamp control stage ................................................... 79
Fan control stage ...................................................... 80
Motor control stage ................................................... 81
Bus control stage ...................................................... 82
LED drive & RC control stage ................................... 83
Power supply & power failure circuit ......................... 84
Indicators and Projector Condition ...........................86
Power failure detection system ................................ 89
Diagnosis of Power Failure with RS-232C port ........ 93
Serial Control Interface ............................................. 94
Control Port Functions................................................. 96
IC Block Diagrams....................................................... 99
Parts Location Diagrams ........................................... 107
Mechanical Parts List .................................................118
Electrical Parts List .................................................... 120
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 ................ A19
Note on Soldering ......................................................A20