LG L1100 Service Manual page 76

1. Earphone detection problem
The Voltage
at JACK_DETECT point
is 0V?
Yes
No
The soldering
Of R223,R225,C232
is OK?
Yes
Pin3 and Pin4 of J201
are open?
Yes
The ABB is out of order.
Change the board.
-75-
No
Resolder the
R223,R225,C232.
No
Change the J201.