Sanyo PLC-XE33, Service Manual, Page: 2 / 110

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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
Lamp cover switch ...................................................... 5
Fuse ............................................................................ 5
Warning temperature and power failure protection ..... 6
Maintenance .................................................................. 7
Lamp Replacement ....................................................... 9
Lamp replacement ...................................................... 9
Resetting the Lamp Counter ..................................... 10
How to check Lamp Used Time ................................ 10
Security Function Notice.............................................. 11
Resetting procedure ................................................. 11
Mechanical Disassembly ............................................. 12
Optical Parts Disassembly ........................................... 17
Adjustments ................................................................. 23
Adjustments after Parts Replacement ...................... 23
Optical Adjustments ..................................................... 24
Contrast adjustment.................................................. 25
Condenser Out lens adjustment ............................... 26
Relay lens-Out adjustment ....................................... 27
Electrical Adjustments ................................................. 28
Service Adjustment Menu Operation ........................ 28
Memory IC (IC1371) Replacement ........................... 28
Circuit Adjustments ................................................... 29
Test Points and Locations ......................................... 34
Service Adjustment Data Table ................................. 35
Chassis Block Diagrams .............................................. 52
Chassis over view ..................................................... 52
System control .......................................................... 53
Lamp control ............................................................. 54
Audio circuit .............................................................. 55
Power supply & protection circuit .............................. 56
Fan control circuit ..................................................... 57
IIC bus control circuit ................................................ 58
Troubleshooting ........................................................... 59
Indicators and Projector Condition ........................... 59
No Power .................................................................. 60
No Picture ................................................................. 61
No Sound .................................................................. 62
Control Port Functions ................................................. 63
Scaler I/O Port Functions (PW190) .......................... 63
Waveform .................................................................... 64
Electrical Parts List ...................................................... 70
Electrical Parts Location ........................................... 71
Electrical Parts List ................................................... 72
Mechanical Parts List .................................................. 87
Cabinet Parts Location ............................................. 87
Optical Parts Location .............................................. 88
Mechanical Parts List ............................................... 92
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