Service manual

MODELS: LT-3280D/LT-3780D
Page 3
CONTENTS
PRODUCT SAFETY NOTICE & SAFETY PRECAUTIONS.................................................................. 5
DISASSEMBLY
Disassembly & Panel Replacement ................................................................................................ 7
LT-3280 Wire Dressing .................................................................................................................. 23
LT-3780 Wire Dressing .................................................................................................................. 24
ELECTRICAL ADJUSTMENTS
Initial Setup................................................................................................................................... 25
CIRCUIT EXPLANATIONS & BLOCK DIAGRAMS
Circuit Explanations ...................................................................................................................... 27
Block Diagrams ............................................................................................................................ 32
TROUBLESHOOTING
Power Troubleshooting .................................................................................................................. 35
Video Troubleshooting................................................................................................................... 38
Audio Troubleshooting................................................................................................................... 40
Remote Control Troubleshooting ................................................................................................... 42
Front Switch Troubleshooting ........................................................................................................ 43
REPLACEMENT PARTS
LT-3280 Replacement Parts List.................................................................................................... 44
LT-3780 Replacement Parts List.................................................................................................... 45
SCHEMATICS