LG LWHD1000R Service Manual - Page 33
It displays abnormally on DC PCB Ass'y.
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Possible Trouble 6 It displays abnormally on DC PCB Ass'y. NO Are IC01G and IC02G OK? YES NO Is the connection of NO CN-AC/DC OK? YES Does the IC03G NO operate normally on AC PCB Ass'y? YES • Replace the DC PCB Ass'y. Troubleshooting Guide • Replace IC01G, IC02G. • Connect connector to CN-AC/DC exactly. • Replace IC03G. Service Manual 33
Service Manual
33
Troubleshooting Guide
Possible Trouble 6
It displays abnormally on DC PCB Ass’y.
NO
NO
NO
NO
YES
YES
YES
Are IC01G and IC02G
OK?
Is the connection of
CN-AC/DC OK?
• Replace the DC
PCB Ass'y.
• Replace IC01G,
IC02G.
• Replace IC03G.
• Connect connector
to CN-AC/DC exactly.
Does the IC03G
operate normally on AC
PCB Ass'y?