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