Sanyo PLC-WL2500A, Руководство по обслуживанию, Страница: 2 / 104

-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
Thermal switch ........................................................... 5
Fuse ............................................................................ 5
Lamp cover switch ...................................................... 5
Warning temperature and power failure protection ..... 6
Maintenance .................................................................. 7
Replacing the filters .................................................... 7
Resetting the filter counter .......................................... 7
Lamp replacement ...................................................... 8
Resetting the lamp counter ......................................... 9
How to check lamp used time ..................................... 9
Attaching the lens cover ........................................... 10
Cleaning the projector .............................................. 10
Cleaning the projection lens ..................................... 10
Cleaning the projector cabinet .................................. 10
Security Function Notice.............................................. 11
Standby Mode Notice .................................................. 12
Mechanical Disassembly ............................................. 13
Optical Parts Disassembly ........................................... 19
Adjustments ................................................................. 25
Adjustments after parts replacement ........................ 25
Note on main board replacement ............................. 25
Optical Adjustments ..................................................... 26
Contrast adjustment.................................................. 26
Condenser lens (OUT) adjustment ........................... 27
Relay lens (OUT) adjustment ................................... 28
Electrical Adjustments ................................................. 29
Service adjustment menu operation ......................... 29
Circuit adjustments ................................................... 29
Test points and locations .......................................... 33
Service adjustment data .......................................... 34
Chassis Block Diagrams .............................................. 48
Chassis over view ..................................................... 48
System control .......................................................... 49
Power supply & protection circuit .............................. 50
Fan control circuit ..................................................... 51
Troubleshooting ........................................................... 52
Indicators and rojector condition ............................... 52
No power .................................................................. 53
No picture ................................................................. 54
No sound .................................................................. 55
Control Port Functions ................................................. 56
Scaler I/O port functions (PW190) ............................ 56
IC Block Diagrams ....................................................... 57
Parts Location Diagrams ............................................. 61
Mechanical Parts List .................................................. 68
Electrical Parts List ...................................................... 70
Diagrams & Drawings ..................................................A1
Parts description and reading in schematic diagram ...A2
Schematic Diagrams ...................................................A3
Printed Wiring Board Diagrams ...................................A9
Pin description of diode, transistor and IC .................A11
Note on Soldering ......................................................A12