2
■ Contents
■ Safety instructions ________________________________________________3
■ Specifications __________________________________________________ 4
■ Note on Servicing ______________________________________________ 5
■ Adjustments after parts replacement ________________________________ 5
■ Circuit protections ______________________________________________ 6-7
● Fuse ____________________________________________________ 6
● Thermal switch ____________________________________________ 6
● Interlock switch ____________________________________________ 6
● Warning temperature and power failure protection ________________ 7
■ Mechanical disassemblies ______________________________________ 8-12
■ Optical parts disassemblies ____________________________________ 13-16
■ LCD panel/prism ass’y replacement ________________________________ 17
■ Lamp replacement ______________________________________________ 18
■ Optical adjustments __________________________________________ 19-21
● Contrast adjustment ________________________________________ 19
● Condenser adjustment ______________________________________ 20
● Relay lens adjustment ______________________________________ 21
■ Electric adjustments __________________________________________ 22-30
● Service adjustment menu operation____________________________ 22
● Circuit adjustments ______________________________________ 23-27
● Service adjustment data table______________________________ 28-33
● Test points and locations ____________________________________ 34
■ Troubleshooting ______________________________________________ 35-40
● No power ______________________________________________ 35-36
● No picture ____________________________________________ 37-38
● No sound ________________________________________________ 39
● Lens motor problems ______________________________________ 40
■ Control port functions ________________________________________ 41-45
■ Waveforms __________________________________________________ 46-47
■ Cleaning ______________________________________________________ 48
■ IC block diagrams ____________________________________________ 49-59
■ Service parts lists ____________________________________________ 60-92
● Electrical parts list ______________________________________ 60-85
● Mechanical parts list ____________________________________ 87-89
● Optical parts list ________________________________________ 90-92
Drawings & Diagrams ______________________________________ A1-A16
■ Parts description and reading in schematic diagram ____________________ A2
■ Circuit block diagram ____________________________________________ A3
■ Power supply lines ______________________________________________ A4
■ Schematic diagrams ________________________________________ A5-A12
■ Printed wiring board diagrams ________________________________ A13-A15
■ Pins description of ICs, transistors, diodes __________________________ A16
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