LG LG-E400 - Page 156

- 156 -
Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
7. CIRCUIT DIAGRAM
C700
2.2u
60
7
AV
D700
39nC718
VBAT
C716 39n
FB704
1800
CN701
6
1
4
4D
5
M5-MIC
M4-DETECT
M4-L
M1-R
M6-GND
C729
33p
C732
47p
C730
15p
C733
47p
R710
1
L702
33n
VREG_MSME_1.8V
317R
M1
R714
2.2K
C731
DNI
707AV
0 907R
C720
10u
VA701
C702
4.7u
VA700
82n
L700
VB700
2
1
L701
82n
10
R702
R703
10
CN700
HIR-02A57-0000A
A
2
1
VA705VA704
33p
C727
33p
C726
C728
1u
217R
M1
M700
3
D
1C
2
E
2
A
C2
B2
B4
A4
B3
E1
A3
D1
A1
C3
B1
E4
E3C4
4D 2D
DDVPH DDVPS
IN3- OUT+
OUT-
HPL
IN3+
HPR
CP
IN1+
CN
IN1-
IN2+
IN2-
SDA
SCL
SAIB
DDVPC
SSVP
C
DNG
VREG_MSME_1.8V
2.2u
C725
C715 2.2u
600
FB700
VREG_MSME_1.8V
C707
1n
VBAT
FB701
600
U700
EAN62065901
MAX14579E
9 6
5
3
4
8
2
7
1
RES
DET_IN
MODE
MIC
DET
SWD
CAP
CCVDNGP
C708
1n
FB7021000
FB7031000
707R
K7.4
C713
39pF
8
07
R
K7.4
C717
0.1u
R711
1
C734
220n
R715
10K
VREG_P3_2.85V
8
07
AV
C735 DNI
C736 DNI
C714 2.2u
FB705
FB706
FB708 600
FB707 600
C711
0.1u
ZD700
307AV
C703
0.1u
C701
0.1u
207AV
127C p93
R704
100
R700 1K 2.2KR701
K2.2607R
100
R705
MIC700
2
1
DNIC712
DNI
C722
2.2u
C723
2.2u
C724
C719 2.2u
LINE_OP
FM_L
FM_R
HPH_R
HPH_L
FM_ANT
RCV_P
RCV_N
EAR_SENSE
HS_MIC
HS_MIC
MIC_1P
AUDIO_I2C_SCL
A
UDIO_I2C_SDA
EAR_L
EAR_L
EAR_R
EAR_R
LINE_ON
3.5PI_KEY_POLE_DET
MIC_MODE
EAR_SENSE_3.5PI
EAR_SENSE_3.5PI
VIB_DRV_N
MIC_1N
MIC_BIAS
SPK_RCV_P
SPK_RCV_P
SPK_RCV_N
SPK_RCV_N
SPEAKER
Delete 11.03.24
EAR_SENSE CIRCUIT
Delete 11.03.24
EAR_MIC_BIAS CIRCUIT
VIBRATOR
CMIC
MTK, S-GOLD Series must be removed.
Varister Can be Changed to TVS or ECLAMP
HEADSET_DETECT
3.5pi Ear Jack Connector
4 Pole
3 Pole
SWDDET
Audio SUB SYSTEM
L L
L H