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 ______________________________________ 8-13
■ Optical parts disassemblies ____________________________________ 14-17
■ LCD panel/prism ass’y replacement ________________________________ 19
■ Lamp replacement ______________________________________________ 20
■ Optical adjustments __________________________________________ 21-24
● Contrast adjustment ________________________________________ 21
● Condenser lens adjustment __________________________________ 22
● Condenser lens-Out adjustment ______________________________ 23
● Relay lens-Out adjustment __________________________________ 24
■ Electric adjustments __________________________________________ 25-30
● Service adjustment menu operation____________________________ 23
● Circuit adjustments ______________________________________ 24-29
● Service adjustment data table______________________________ 30-33
● Test points and locations ____________________________________ 34
■ Troubleshooting ______________________________________________ 35-39
● No power ______________________________________________ 35-36
● No picture ____________________________________________ 37-38
● No sound ________________________________________________ 39
● Lens motor problems ______________________________________ 39
■ Control port functions ________________________________________ 40-43
■ Waveforms __________________________________________________ 44-45
■ Cleaning ______________________________________________________ 46
■ IC block diagrams ____________________________________________ 47-54
■ Service parts lists ____________________________________________ 55-73
● Electrical parts list ______________________________________ 55-65
● Mechanical parts list ____________________________________ 66-70
● Optical parts list ________________________________________ 71-73
Drawings & Diagrams __________________________________________ A1
■ Parts description and reading in schematic diagram____________________ A2
■ Circuit block diagram ____________________________________________ A3
■ Power supply lines ______________________________________________ A4
■ Schematic diagrams ________________________________________ A5-A11
■ Printed wiring board diagrams ________________________________ A12-A14
■ Pins description of ICs, transistors, diodes __________________________ A15
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