Sanyo PLC-XU75, Service Manual

Page: 2 / 104

--
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
Air filter care and cleaning .......................................... 6
Security Function Notice ................................................ 7
Lamp Replacement ....................................................... 8
Lamp replacement ...................................................... 8
How to reset Lamp Replace Counter ......................... 8
How to check Lamp Used Time .................................. 8
Mechanical Disassembly ............................................... 9
Optical Parts Disassembly ........................................... 15
Adjustments ................................................................. 1
Adjustments after Parts Replacement ...................... 1
Optical Adjustments .....................................................
Contrast adjustment .................................................
Integrator lens adjustment ........................................ 3
Relay lens-Out adjustment ....................................... 4
Electrical Adjustments ................................................. 5
Service Adjustment Menu Operation ........................ 5
Memory IC (IC1371) Replacement ........................... 5
Circuit Adjustments ................................................... 6
Test Points and Locations ........................................ 30
Service Adjustment Data Table ................................ 31
Chassis Block Diagrams .............................................. 49
Chassis over view ..................................................... 49
System control .......................................................... 50
Power supply & protection circuit ............................. 51
Fan control circuit ..................................................... 5
Troubleshooting ........................................................... 53
Indicators and Projector Condition ........................... 53
No Power .................................................................. 54
No Picture ................................................................. 55
No Sound .................................................................. 56
System Control & I/O Port Functions (IC301) ........... 57
Waveform .................................................................... 58
Cleaning ...................................................................... 59
IC Block Diagrams ....................................................... 60
Electrical Parts List ...................................................... 64
Electrical Parts Location ........................................... 65
Electrical Parts List ................................................... 66
Mechanical Parts List .................................................. 84
Cabinet Parts Location ............................................. 84
Optical Parts Location .............................................. 85
Mechanical Parts List ............................................... 89
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