LG GD330 - Speaker;Receiver Trouble Shooting (Acoustic Path)

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4. TROUBLE SHOOTING
NO
Check the soldering state of
TP1, TP2
@MAIN_PCB
Disassemble the slide case of phone.
Play the Key tone.
Check the TP1, TP2
The signal is a analog
START
U100(ABB) is broken.
Change the board.
4.10. Speaker/Receiver Trouble Shooting (Acoustic Path)
TP2
TP1
IC200 is broken.
Replace the IC200.
Play the Ring tone.
Check the output
(TP3, TP4) of IC200
The signal is a Analog
YES
IC200
TP3
TP4