Sanyo PLC-XC50 Service Manual

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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
Filter switch ................................................................. 5
Fuse ............................................................................ 6
Warning temperature and power failure protection ..... 6
Maintenance .................................................................. 7
Replacing the Filter Cartridge ..................................... 7
Resetting the Filter Counter ........................................ 8
Resetting the Scroll Counter ....................................... 8
Lamp Replacement .................................................... 9
Resetting the Lamp Counter ..................................... 10
How to check Lamp Used Time ................................ 11
Cleaning ................................................................... 11
Security Function Notice.............................................. 12
Security Function Disable ......................................... 12
Mechanical Disassembly ............................................. 13
Optical Parts Disassembly........................................... 18
Adjustments ................................................................. 24
Adjustments after Parts Replacement ...................... 24
Optical Adjustments ..................................................... 25
Contrast adjustment ................................................. 25
Integrator 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.............................................. 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 ........................................................... 62
Indicators and Projector Condition ........................... 62
Troubleshooting ........................................................... 63
No Power .................................................................. 64
No Picture ................................................................. 65
No Sound .................................................................. 66
Control Port Functions ................................................. 67
Scaler I/O Port Functions (PW190) .......................... 67
Waveform .................................................................... 68
IC Block Diagrams ....................................................... 69
Electrical Parts List ...................................................... 75
Electrical Parts Location ........................................... 76
Electrical Parts List ................................................... 77
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 ...A2
Schematic Diagrams ...................................................A3
Printed Wiring Board Diagrams ...................................A9
Pin description of diode, transistor and IC .................A13
Note on Soldering ......................................................A14

Sanyo PLC-XC50 Specifications