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VBAT
VDD_IO_1V8
R401
47K
C401
USB_DM
1u
USB_DP
UART_RX
UART_TX
VDD_IO_1V8
R409
10K
I2C_SCL
I2C_SDA
MUIC_INT_N
VDD_IO_1V8
X+
Y+
X-
Y-
C414
0.1u
X+
X-
LGE Internal Use Only
MINI ABB ( MUIC + CHARGE ID)
VUSB_CHG_IN
C5
E4
BATT1
VBUS1
D5
E5
BATT2
VBUS2
R403
10
VUSB_CHG_IN
A2
E3
DN
D-
MUIC_IO_M
C402
R404
10
A3
E2
DP
D+
MUIC_IO_P
0.1u
1800
A5
E1
U1
ID
MUIC_ACC_ID
A4
U401
FB403
U2
2.2K
LP8727
D1
RES
B1
R408
AUD1
C1
D3
AUD2
DSS
A1
B5
VUSB_LDO_4V9
MIC
EXPDET
D2
CAP
C411
C412
1u
1u
POWER ON
TOUCH IC
A2
A1
VDD
AUX
47K
47K
A3
B2
X+
A0
B3
U402
C2
TOUCH_RST
Y+
NRST
C3
D1
I2C_SCL
X-
SCL
D3
C1
Y-
SDA
I2C_SDA
D2
B1
GND
NIRQ
TOUCH_INT
TOUCH CONNECTOR
PWR_HOLD
ENZY0020701
CN405
1
2
Y+
3
Y-
4
ZD402
ZD403
ZD404
ZD405
4-2-3-1 Micro-USB 5pin normal
4-5-1-1 Battery Connector
VUSB_CHG_IN
GND2
GND1
CN401
OUT
IN
300pF
6
FL401
7
8
CN402
1
FB401
1800
MUIC_IO_M
2
1800
D1
FB402
MUIC_IO_P
3
1800
1
4
MUIC_ACC_ID
2
5
FB404
3
R406
9
D2
DNI
10
11
EAG62832501
C406
22pF
ENRY0010501
BOM Change : ENRY0010501
KEYPAD INTERFACE
VBACKUP_BAT
R410
6.8K
CN403
1
2
PWR_HOLD
3
ZD401
C413
0.1u
KEY_IN[1]
R411
680
PWR/HOLD
KEY_IN[3]
R414
680
KEY_OUT[2]
R415
680
KEY_OUT[3]
R416
680
R417
PWRON
1K
R418
100K
D404
- 143 -
MOTOR
VBAT
VDD_IO_1V8
R402
(1%)
L401
51K
VIB_P
56n
R405
10
C403
C404
BAT_TEMP
33p
1u
R407
C405
100K
0.1u
C407
C408
C409
C410
100u
10p
27p
47p
OK
SEND
KB402
KB401
CN404
1
2
3
CLR
4
KB403
VA402
VA401
D403
D401
D402
8. CIRCUIT DIAGRAM
VB401
1
2
L402
56n
Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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