LG MG200 Service Manual page 74

1. Earphone detection problem
The Voltage
at JACK_DETECT point
is 0V?
Yes
No
The soldering
Of R232, R233, C246
is OK?
Yes
Pin3 and Pin4 of J201
are open?
Yes
The ABB is out of order.
Change the board.
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4. TROUBLE SHOOTING
No
Resolder the
R232, R233, C246.
No
Change the J201.