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Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
8. CIRCUIT DIAGRAM
VUSB_CHG_IN
1800
FB401
CN404
4
3
2
1
ZD405
1800
FB402
EAG62832501
CN402
3
2
1
D1
D2
1800
FB404
100u
C407
2.2K
R408
VA402
C402
0.1u
VUSB_CHG_IN
VUSB_CHG_IN
R401
47K
VDD_IO_1V8
VBAT
1u
C401
10K
R409
VDD_IO_1V8
CN403
3
2
1
ZD404
FB403
1800
ZD403
ZD402
10p
C408
CN401
ENRY0010501
11
10
9
5
4
3
2
1
8
7
6
LP8727
U401
C5
D2
B5
D3
D1
E1
E2
E3
E5
E4
A1
C1
B1
A4
A5
A3
A2
D5
4
D
4
C
3
C
2
C
2
B
3
B
4
B
L
C
S
A
D
S
¬
¡
T
N
I
1
D
N
G
2
D
N
G
3
D
N
G
4
D
N
G
BATT2
DN
DP
U1
U2
AUD1
AUD2
MIC
VBUS1
VBUS2
D-
D+
ID
RES
DSS
EXPDET
CAP
BATT1
C412
1u
1u
C411
0.1u
C405
R406
DNI
10
R405
VDD_IO_1V8
C409
27p
C410
47p
VBAT
02
4
R
47K
91
4
R
47K
VA401
680
R411
680
R415
680
R416
D403
D401
D402
KB403
KB401
680
R414
KB402
300pF
FL401
IN
OUT
GND1
GND2
51K
R402
R407
100K
ZD401
6.8K
R410
0.1u
C413
VBACKUP_BAT
R403
10
R404
10
22pF
C406
56n
L402
L401
56n
C404
1u
33p
C403
VB401
2
1
U402
B2
D1
C3
A2
D3
C2
A3
D2
B3
A1
C1
B1
NIRQ
SDA
AUX
Y+
GND
X+
NRST
Y-
VDD
X-
SCL
A0
VDD_IO_1V8
0.1u
C414
CN405
4
3
2
1
D404
R418
100K
1K
R417
USB_DP
USB_DM
PWRON
UART_TX
MUIC_ACC_ID
MUIC_ACC_ID
UART_RX
VUSB_LDO_4V9
BAT_TEMP
I2C_SDA
I2C_SDA
I2C_SCL
I2C_SCL
KEY_OUT[3]
Y-
Y-
Y+
Y+
X+
X+
KEY_IN[3]
PWR_HOLD
PWR_HOLD
KEY_OUT[2]
VIB_P
MUIC_IO_P
MUIC_IO_P
MUIC_IO_M
MUIC_IO_M
X-
X-
MUIC_INT_N
KEY_IN[1]
TOUCH_INT
TOUCH_RST
SEND
CLR
KEYPAD INTERFACE
MINI ABB ( MUIC + CHARGE ID)
OK
(1%)
MOTOR
4-5-1-1 Battery Connector
4-2-3-1 Micro-USB 5pin normal
m
m2
:ht
di
W
eni
L
ENZY0020701
TOUCH CONNECTOR
PWR/HOLD
POWER ON
TOUCH IC
BOM Change : ENRY0010501