LG L1404R Service Manual page 32

Troubleshooting Guide
Possible Trouble 6
Are the IC01G and IC02G
good?
YES
Is the connection of
CN-AC/DC OK?
YES
Does IC03G
operate normally on AC
PCB Ass'y?
YES
• Replace the DC
PCB Ass'y.
32 Room Air Conditioner
It displays abnormally on DC PCB Ass'y.
NO
NO
NO
NO
• Replace IC01G,
IC02G.
• Connect connector
to CN-AC/DC exactly.
• Replace IC03G.