LG LWC101GGMK1 Service Manual page 25

Possible Trouble 6
Is the voltage of Battery
about over 2.3V?
YES
Is the voltage No.16
of CN-DISP on Main PCB
Ass'y DC 5V?
YES
Is the connection of
CN-DISP all right?
YES
• Exchange Receiver Ass'y.
Possible Trouble 7
Is the IC01G all right?
YES
Is the connection of
CN-DISP all right?
YES
Does the Q01G,
Q02G, Q03G, Q04G operate normally
on main PCB Ass'y?
YES
• Exchange the display
PCB Ass'y.
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Only for training and service purposes
Remote controller does not operate.
NO
NO
NO
It displays abnormally on display PCB Ass'y.
NO
NO
NO
NO
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• Exchange the battery.
• Check the PCB pattern.
• Check the PCB pattern.
• Connect connector to
CN-DISP exactly.
• Exchange IC01G.
• Connect connector
to CN-DISP exactly.
• Exchange Q01G,
Q02G, Q03G, Q04G
LGE Internal Use Only