LG -D620 Service Manual page 146

MIC_BIAS_1
MIC_IN3_N
MIC_IN3_P
LGE Internal Use Only
1800
FB6921
TP2(FB6921)
GND Close to MIC
TP1(C6922)
TP1(C6922)
TP2(FB6921)
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- 146 - Copyright © 2014 LG Electronics. Inc. All right reserved.
3. TROUBLE SHOOTING
MIC6921
6
5
4
3
2
1
Only for training and service purposes
G4
PWR
G3
G2
G1
OUT