LG LG-V909DW - Page 93

4. TROUBLE SHOOTING
- 93 -
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Only for training and service purposes
LGE Internal Use Only

ͽ͸Ͷ ͺΟΥΖΣΟΒΝ ΆΤΖ ΀ΟΝΪ

z MIC block diagram
*Main MIC

ͽ͸Ͷ ͺΟΥΖΣΟΒΝ ΆΤΖ ΀ΟΝΪ

z MIC block diagram
*Main MIC
R802 100K
R803 100K
4.7u
C815
C816
4.7u
F8
F9
E8
E7
C9
B6
A7
A5
A3
E1
D3
A4
G2
H1
F3
SDA
SCLK
CS/ADDR
CIFMODE
MCLK1
GPIO2/MCLK2
SPKMODE
REFFGND
MICBIAS1
MICBIAS2
VMIDC
AGND2
AGND3
HPOUT2N
HPOUT2P
GEN2_I2C_SDA
GEN2_I2C_SCL
AUDIO_MCLK2
AUDIO_MCLK1
MIC_BIAS
MIC1300
4
3
2
1
P
G1
G2
O
3031D 9
0
31
D
C1304
47p
33p
C1303
600
FB1300
MIC_BIAS
MIC_P
MIC_N
SMD, TOP
MICROPHONE
Wm8994
[cdec]
Check the voltage of (MIC_BAIS) TP