LG KE820 - Microphone Trouble

5. Trouble shooting
- 88 -
5.7 Microphone trouble
Check Points
-Microphone hole
-Mic. Bias & signal come from
R122 0
MIC100
SP0102BE3
2
G1
G2
3
G3
5
OUT
1
4
PWR
VA102VA100
C127
10u
L105
100nH
100p
C117
27p
C114
C125
0.1u
VA101
0R120
100p
C128
100nH
L104
C116
0.1u
C126
C115
100p
27p
VMICN
MIC1_P
MIC1_N
VMICP
Mic.
bias