Sanyo PLC-EF12B, Service Manual

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Contents
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Safety instructions ________________________________________________3
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Specifications __________________________________________________ 4
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Adjustments after parts replacement ________________________________ 5
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Circuit protections ______________________________________________ 6-7
Fuse ______________________________________________________ 6
Thermal switch ______________________________________________ 6
Warning temperature and power failure protection ____________________ 7
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Mechanical disassemblies ______________________________________ 8-15
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Optical unit disassemblies ______________________________________ 16-20
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Lamp replacement ______________________________________________ 21
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LCD panel replacement __________________________________________ 22
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Electric adjustments __________________________________________ 23-35
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Service adjustment menu operation ____________________________ 23
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Service adjustment data table ______________________________ 24-29
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Circuit adjustments ______________________________________ 30-35
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Optical adjustments __________________________________________ 36-41
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Focus adjustment ______________________________________ 36-37
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Convergence adjustment ____________________________________ 38
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Contrast adjustment ________________________________________ 39
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Integrator lens adjustment __________________________________ 40
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Relay lens adjustment ______________________________________ 41
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Troubleshooting ______________________________________________ 42-46
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No Power ______________________________________________ 42-44
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No Picture ________________________________________________ 45
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No Sound ________________________________________________ 46
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CPU (IC801) port functions ____________________________________ 47-51
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Waveforms __________________________________________________ 52-53
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Cleaning ______________________________________________________ 54
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IC block diagrams ____________________________________________ 55-66
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Pins description of ICs, transistors, diodes____________________________ 67
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Parts description in schematic diagram ______________________________ 68
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Service parts lists __________________________________________ 69-110
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Electrical parts list ______________________________________ 69-103
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Mechanical parts list __________________________________ 104-110
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Circuit block diagram ____________________________________________ A1
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Power supply lines ______________________________________________ A2
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Schematic diagrams ________________________________________ A3-A10
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Printed wiring board diagrams ________________________________ A11-A15