LG -D385 Service Manual page 141

2nd Mic Hole located on Main PCB Top Side..
It's operating handset voice call and speakerphone
In case of Test menu, loopback 2nd Mic test and Camcorder recording.
Check MIC_BIAS_1 voltage level (R6909)
MIC_IN3_P
MIC_IN3_N
LGE Internal Use Only
2nd Mic Hole
<Main Top>
C6915
2.2u
100
R6911
C6910
39p
100
R6912
C6914 C6911
39p 39p
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3. TROUBLE SHOOTING
2nd Mic Rubber
MIC_BIAS_1
1
2
MIC6921
VA6902 VA6903
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