4. TROUBLE SHOOTING
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Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
39p
C753
1800
FB710
R722
1M
VREG_MSME_1.8V
R724
10K
U700
9
6
5
3
4
8
2
7
1
RES
DET_IN
MODE
MIC
DET
SWD
CAP
C
C
V
D
N
G
P
1u
C751
2.2K
R723
R721
1M
VREG_P3_2.85V
220n
C752
EAR_MIC_3.5PI
EAR_SENSE_3.5PI
EAR_MIC
3.5PI_KEY_POLE_DET
MIC_MODE
EAR_SENSE
L
H
L
L
4 Pole
3 Pole
SWD
DET
HEADSET_DETECT
LGE Internal Use Only
TP1
TP2
TP3
TP4