Sanyo PLC-WXU300, Service Manual

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Contents
SERVICE MANUAL ........................................................ 1
Contents ........................................................................
Safety Instructions ......................................................... 3
Safety Precautions ...................................................... 3
Product Safety Notice ................................................. 3
Service Personnel Warning ......................................... 3
Specifications ................................................................ 4
Circuit Protections ......................................................... 5
Thermal switch ........................................................... 5
Lamp cover switch ...................................................... 5
Fuse ............................................................................ 5
Warning temperature and power failure protection .... 6
Maintenance .................................................................. 7
Cleaning the Air Filter ................................................. 7
Resetting the Filter Counter........................................ 7
Attaching the Lens Cover ............................................ 8
Cleaning the Projection Lens ...................................... 8
Cleaning the Projector Cabinet ................................... 8
Lamp Replacement ....................................................... 9
Lamp replacement ...................................................... 9
How to check Lamp Used Time ................................ 10
Warning Message on the non-standard lamp used .. 10
Security Function Notice ..............................................11
Resetting procedure ..................................................11
Mechanical Disassembly ............................................. 1
z Cabinet Top, Front, R/C Board removal ................... 1
x Main Board, AV Panel and Fan removal ................. 13
c Speaker(SP901), Fan (FN901),Lamp Unit(LP900) and
Optical Unit removal ................................................. 14
v Power Board removal ............................................. 15
b Mounting Duct, Fan(FN903, FN904, FN905) and
Filter Board removal .................................................. 16
Optical Parts Disassembly ........................................... 17
Adjustments ................................................................ 4
Adjustments after Parts Replacement ...................... 4
Optical Adjustments .................................................... 5
Contrast adjustment ................................................. 5
Integrator lens adjustment ....................................... 6
Relay lens-Out adjustment ....................................... 7
Electrical Adjustments ................................................. 8
Service Adjustment Menu Operation ....................... 8
Memory IC (IC1391) Replacement ........................... 8
Circuit Adjustments .................................................. 9
Test Points and Locations ......................................... 34
Service Adjustment Data Table ................................. 35
Chassis Block Diagrams .............................................. 55
Chassis over view ..................................................... 55
System control .......................................................... 56
Lamp control ............................................................. 57
Audio circuit .............................................................. 58
Power supply & protection circuit ............................. 59
Fan control circuit ..................................................... 60
IIC bus control circuit ................................................ 61
Troubleshooting ........................................................... 6
Indicators and Projector Condition ............................ 6
No Power .................................................................. 63
No Picture ................................................................. 64
No Sound .................................................................. 65
Control Port Functions ................................................. 66
Scaler I/O Port Functions (PW39) ........................... 66
Waveform .................................................................... 67
Electrical Parts List .......................................................74
Electrical Parts Location ............................................ 75
Electrical Parts List ................................................... 76
Mechanical Parts List ................................................... 95
Cabinet Parts Location .............................................. 95
Optical Parts Location ............................................... 96
Mechanical Parts List .............................................. 100
Diagrams & Drawings ..................................................A1
Parts description and reading in schematic diagram ...A
Schematic Diagrams ....................................................A3
Printed Wiring Board Diagrams.................................. A11
Pin description of diode, transistor and IC .................A15
Note on Soldering ......................................................A16