MODEL: L423FR
Page 3
CONTENTS
PRODUCT SAFETY NOTICE ............................................................................................................. 5
SAFETY PRECAUTIONS ................................................................................................................... 5
DISASSEMBLY
Cabinet Disassembly ...................................................................................................................... 7
Panel Replacement....................................................................................................................... 13
Wire Dressing ............................................................................................................................... 18
ELECTRICAL ADJUSTMENTS
Initial Setup................................................................................................................................... 19
CIRCUIT EXPLANATIONS & BLOCK DIAGRAMS
Circuit Explanations ...................................................................................................................... 20
Block Diagrams ............................................................................................................................ 25
TROUBLESHOOTING
Power Troubleshooting .................................................................................................................. 29
Video Troubleshooting................................................................................................................... 31
Audio Troubleshooting................................................................................................................... 34
Remote Control & Front Switch Troubleshooting ........................................................................... 36
REPLACEMENT PARTS
Replacement Parts List ................................................................................................................ 37
SCHEMATICS
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