Sanyo PLC-SU40 Service Manual

Also see for PLC-SU25: Owner's manual Specifications

-2-■ Contents■ Safety Instructions ________________________________________________3■ Specifications ____________________________________________________4■ Adjustments after Parts Replacement ________________________________5■ Circuit Protections ________________________________________________6● Thermal switch ____________________________________________6● Interlock switch ____________________________________________6● Fuse ____________________________________________________6● Warning temperature and power failure protection __________________7■ Mechanical Disassemblies__________________________________________8■ Optical Parts Disassemblies ______________________________________14■ LCD Panel/Prism Ass’y Replacement ________________________________19■ Lamp Replacement ______________________________________________20■ Optical Adjustments ______________________________________________21■ Electrical Adjustments ____________________________________________25● Service Adjustment Menu Operation____________________________25● Circuit Adjustments ________________________________________26● Test Points and Locations ____________________________________30● Service Adjustment Data Table ________________________________31■ Chassis Block Diagrams __________________________________________34Chassis over view ____________________________________________34Inputs & video signal processing stage ____________________________35LCD panel driving stage ______________________________________36Audio signal processing circuit __________________________________37Motor driving circuit __________________________________________38System controls ______________________________________________39Power supply & protection circuit ________________________________40■ Troubleshooting ________________________________________________42No Power __________________________________________________42No Picture __________________________________________________43No Sound __________________________________________________45Lens Motor Problems__________________________________________45■ Control Port Functions ____________________________________________46● System Control & I/O Port Table ______________________________46■ Waveform ______________________________________________________48■ Cleaning ______________________________________________________49■ IC Block Diagrams ______________________________________________50■ Service Parts List ____________________________________________59-87Electrical Parts List ________________________________________59-80Mechanical Parts List ______________________________________81-87Drawings & Diagrams■ Parts description and reading in schematic diagram ____________________ A2■ Schematic diagrams __________________________________________ A3-A9■ Printed wiring board diagrams ________________________________ A11-A15■ Pins description of ICs, transistors, diodes __________________________ A16