LG W3000 Service Manual page 83

4. TROUBLE SHOOTING
R101
R105, R107,
C120, C124
The signal
flow of the
microphone
The voltage at this
to U103.
point goes to almost
0V when the mic is
activated.
104
MIC activating
signal : Mic is
activated when this
signal goes to
high.
- 82 -
C114
MIC101
L101,
L102