LG L240 Service Manual page 76

4. TROUBLE SHOOTING
2
NO
Check the soldering of
Resolder the R329,
R329, R331, C335, C336,R330, R332
R331,C335,C336,R330,R332
Soldering is OK?
YES
Play the Ring tone.
NO
U102(DBB) is broken.
Check the R329(SPKNA),R331(SPKPA)
Change the board.
The signal is a Analog
Check the Speaker
contact PAD of the F-PCB
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