Sanyo PLC-XL50, 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
Battery Replacement Notice......................................................... 3
Specifications ......................................................................................... 4
Circuit Protections ................................................................................ 5
Fuse........................................................................................................ 5
Lamp cover switch ........................................................................... 6
Thermal switch .................................................................................. 6
Warning temperature and power failure protection ........... 7
Maintenance and Cleaning ............................................................... 8
Cleaning the Air Filter ..................................................................... 8
Resetting the Filter Counter ......................................................... 8
Cleaning the Projector Window .................................................. 9
Cleaning .............................................................................................10
Lamp Replacement ............................................................................11
Lamp Replacement Counter ......................................................1
How to check Lamp Used Time .................................................13
Security Function Notice .................................................................14
Security Function Disable ............................................................14
Antitheft Alarm Function Disable .............................................14
Mechanical Disassembly..................................................................15
Optical Parts Disassembly ...............................................................8
Adjustments .........................................................................................37
Adjustments after Parts Replacement ....................................37
Optical Adjustments .........................................................................38
Contrast adjustment......................................................................38
Integrator lens adjustment .........................................................39
Relay lens-Out adjustment .........................................................40
Projection Lens focus adjustment ............................................41
Electrical Adjustments ..................................................................43
Service Adjustment Menu Operation .....................................43
Circuit Adjustments .......................................................................44
Test Points and Locations ............................................................49
Service Adjustment Data Table .................................................50
Chassis Block Diagram ......................................................................66
Chassis over view ............................................................................66
System control .................................................................................67
Lamp control ....................................................................................68
Audio circuit .....................................................................................69
Power supply & protection circuit ............................................70
Fan control circuit ...........................................................................71
Alarm circuit .....................................................................................7
IIC bus control circuit ....................................................................73
Troubleshooting .................................................................................74
Indicators and Projector Condition ..........................................74
No Power ...........................................................................................75
No Picture ..........................................................................................76
No Sound ...........................................................................................77
Control Port Functions .....................................................................78
Scaler I/O Port Functions (PW190) ...........................................78
IIC Bus D/A Converter Port Functions (M6334) .................79
Waveform ..............................................................................................80
IC Block Diagrams...............................................................................81
Electrical Parts List .............................................................................87
Electrical Parts Location ...............................................................88
Electrical Parts List ..........................................................................89
Mechanical Parts List ...................................................................... 104
Cabinet Parts Location ............................................................... 104
Mechanical Parts List .................................................................. 109
Diagrams & Drawings ...................................................................... A1
Parts description and reading in schematic diagram .......... A
Schematic Diagrams ........................................................................ A3
Printed Wiring Board Diagrams .................................................... A9
Pin description of diode, transistor and IC .............................A13
Note on Soldering ...........................................................................A14