The LT-4260 includes the L423FR, monitor and HD-6000, receiver controller.
This manual covers the L423FR, monitor.
For the receiver/controller, see the HD-6000 Service Manual
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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