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Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
7. CIRCUIT DIAGRAM
VDD_5V0
V_USB
11
4
C
n0
74
V_USB
USB1_VBUS
10
4
DZ
C409
0.1u
Q405
D
G
S
R419
1M
R407
DNI
Q406
D
G
S
V_TCH_POWER
VL
n0
74
01
4
C
D401
2
3
1
A1
C
A2
M1
02
4
R
CN401
1
2
3
4
5
G2
G1
Q404
5
3
2
4
1
VOUT
EN
GND
VIN
D
N
G
P
Q412
7
8
4
3
5
2
6
1
1
D
4
D
2
D
3
D
G
1
S
2
S
5
D
V_CHG_FET
V_CHG_FET
Q407
D
G
S
51
4
C
n0
74
V_BAT
C423
0.1u
VDD_5V0_HDMI
VL
C402
10u
30
4
C
u0
1
VL
00
4
Q
S
G
D
u1
41
4
C
V_POWERRAIL
K0
74
71
4
R
V_POWERRAIL
33
4
C
u1
20
4
R
K0
74
V_TCH_3V3
01
4
R
K0
74
K0
74
10
4
R
U402
4
3
5
2
6
1
S
B1
VCC
GND
A
B0
n0
74
72
4
C
VDD_3V3_ALWAYS
31
4
C
u1
C412
1u
62
4
C
u1
C429
1u
VDD_5V0
V_LDO3_3V3
Q403
D
G
S
470K
R429
FB400
ZD400
V_BAT
u1
60
4
C
61
4
R
M1
V_AC
K0
74
00
4
R
M1
51
4
R
u7.
4
70
4
C
0.1u
C401
V_AC
00
4
C
u7.
4
U401
9
7
4
8
1
6
5
3
2
CELL
VDD
SEO
EO
CTG
SDA
GND
SCL
D
N
G
P
V_BAT
V_BAT
150
R404
150
R405
100K
R406
C405
1u
V_LDO4_1V8
81
4
R
K0
01
C428
0.1u
V_POWERRAIL
U403
4
3
5
2
6
1
S
B1
VCC
GND
A
B0
V_POWERRAIL
L400
1u
V_POWERRAIL
R411
10K
1u
C425
C424
10n
K0
74
41
4
R
V_LDO4_1V8
30
4
R
K0
74
V_USB
Q402
5
3
2
4
1
VOUT
EN
GND
VIN
D
N
G
P
Q401
5
3
2
4
1
VOUT
EN
GND
VIN
D
N
G
P
R408
820
R422
10K
1u
C404
Q410
7
8
4
3
5
2
6
1
1
D
4
D
2
D
3
D
G
1
S
2
S
5
D
R409
8.2K
R423
0
Q408
5
3
2
4
1
VOUT
EN
GND
VIN
D
N
G
P
0
R421
R412
62K
U400
5
6
4
7
9
10
8
11
12
13
17
14
28
15
18
16
21
19
20
25
27
29
24
26
3
22
2
23
1
PG1
SYS1
PG2
_CHG
DC1
CS2
SYS2
BGND
LX1
CS1
BAT1
_UOK
BAT2
THM
_FLT
USUS
LX2
_CEN
USB
ISET
GND
IDC
_DOK
CT
VL
IUSB
DC2
BST
DCM
1u
C431
n0
74
23
4
C
Q409
5
3
2
4
1
VOUT
EN
GND
VIN
D
N
G
P
VDD_5V0_HDMI
VDD_5V0
I
N
D
23
4
R
33
4
R
I
N
D
43
4
R
0
80
4
C
I
N
D
03
4
C
p0
01
PWR_I2C_SCL
PWR_I2C_SDA
CHG_EN_N
CHG_STAT_N
CHG_FAULT_N
USB_SUSPEND
UAC_IN
USB_HOST_EN
USB_HOST_EN
USB_HOST_EN
USB_DET_N
AC_DET
BAT_THM
BAT_THM
TOUCH_IO_EN
TOUCH_PWR_EN
AC_OK_N
AC_OK_N
AC_OK_N
THM_VTG_SEL
VDD_5V0_HDMI_EN
5V (USB HOST)
ZD400 must be placed closely to CN401
CHARGER, LOAD SW's
from 0 to 45 celsius
Charger (1.5A)
Touch Panel Main Voltage
Fuel Gauge
USB
Touch Panel IO Voltage
Battery Connector
USB Charging Current : 500mA
3.0mm
3.0mm
3.0mm
3.0mm
m
m
0
.
3
3.0mm
3.0mm
5V (HDMI, WLED)