LG L1404R Service Manual - Page 32

Are the IC01G and IC02G

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

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32
Room Air Conditioner
Troubleshooting Guide
Possible Trouble 6
It displays abnormally on DC PCB Ass’y.
NO
NO
NO
NO
YES
YES
YES
Are the IC01G and IC02G
good?
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 IC03G
operate normally on AC
PCB Ass'y?