LG GD510 - Microphone Trouble

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
5. Trouble shooting
GD510 Operational Description Revision A
LG Electronics 73/113 LGE Property
5.7 Microphone trouble
Check Points
-Microphone hole
-Mic. Bias & signal line
L210,L202
MIC101
L203
0
0
42
C
C227
39pF
0.022uFC225
0.022uFC226 L201 0.1uH
L202 0.1uH
EVLC14S02050
VA201
MIC201
SPU0410HR5H-PB
4
3
2
1
P
G1
G2
O
C228
39pF
39pF
C229
0.1uH
L203
10u
C231
VMIC_P
VMIC_N
MAIN_MIC_P
MAIN_MIC_N
MIC