- 135 -
Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
7. CIRCUIT DIAGRAM
TP404
R416
0
10
4
D
Z
2.2u
L400
00
4
D
2.2u
L402
60
4
C
u1
VCHG_VBUS
R404
22K
C422
0.1u
VREG_MSME_1.8V
C401
1u
FL401
5
6
3
1
4
2
P2
P4
P1
P3
6
P
5
P
R405
0
BAT400
VBUS_CHG_IN
C465
1u
VREG_USIM2_2.85V
TP400
1u
C407
4.7u
C411
u1
00
4
C
C425
0.1u
4.7u
C414
D401
VREF_THERM
0.1u
C418
C421
0.1u
R419
36K
R421
100K
0.1u
C423
R409
470K
R414
1K
C424
0.1u
MIC_BIAS
0.1u
C431
VBAT
22
4
R
K0
01
10
4
R
K7.
4
22p
C404
p2
2
20
4
C
FL400
1
IN
OUT
GND1
GND2
C409
33p
TP408
TP405
TP402
51K
R415
M
R
E
H
T_
F
E
R
V
32
4
R
I
N
D
VREG_SMPS_2.1V
VREG_MSME_1.8V
VREG_MSMC2_1.1V
VREG_MSMC1_1.1V
22u
C439
C436
22u
C438
22u
C437
22u
2.2u
L403
L401
2.2u
33
4
C
p0
01
1u
85
4
C
1u
95
4
C
2.2u
54
4
C
2.2u
44
4
C
75
4
C
1u
65
4
C
1u
55
4
C
1u
1u
45
4
C
35
4
C
1u
15
4
C
1u
1u
05
4
C
94
4
C
1u
84
4
C
1u
24
4
C
1u
1u
34
4
C
p2
2
23
4
C
VREG_RF_2.7V
+3V_WLAN_WCN
VREG_USIM1_2.85V
VREG_USB_3.3V
VREG_SDCARD_2.85V
VREG_P3_2.85V
VREG_LCD_2.8V
VREG_TOUCH_3.0V
VREG_PADAC_2.05V
VREG_MSMA2_1.2V
VREG_PLL_1.1V
R412
51
VREG_MSME_1.8V
C428
0.1u
VREG_MSMA1_2.6V
C426
1u
R417
0
0.1u
C420
C429
33n
C416
0.1u
VREG_TCXO_2.85V
VREG_USB_1.8V
C462
33n
VREG_MSME_1.8V
VBAT
C410
4.7u
VBAT
C440
3.3n
VBAT
U402
5
A
4
H
2
H
7
R
8
P
2
D
4
D
2
2
D
3
1
A
2
2
H
3
2
C
3
2
G
9
1
A
2
1
B
1
1
A
5
K
5
G
5
1
N
3
1
R
4
1
P
3
1
N
1
1
N
1
1
R
2
1
P
5
1
R
6
1
P
2
2
M
0
2
M
3
2
N
4
F
C13
B14
R17
M18
G19
H20
K21
B6
B4
A3
G1
M2
G3
K1
N1
R9
P10
P6
R5
K23
B2
E3
C3
C1
D20
C21
B20
B22
G21
F20
F22
B18
B16
A17
B10
B8
A9
P22
R19
N21
P20
F18
H18
H16
N19
P18
F16
H14
F14
E21
E19
M16
M14
M6
M8
N17
H10
H8
C11
K15
M10
K11
K13
K9
E5
N7
N5
N9
K3
M4
N3
E1
F2
P2
4
P
6
H
3
R
2
1
H
3
1
G
1
1
G
2
1
F
3
2
A
1
A
1
R
1
2
A
3
2
E
5
1
A
7
A
9
1
K
8
D
5
C
0
1
F
8
F
6
F
0
1
D
1
1
E
7
C
9
C
9
E
6
D
3
2
R
1
2
R
8
1
D
9
1
C
7
1
C
5
1
C
6
1
D
5
1
E
4
1
D
3
1
E
1
P
P
M
2
P
P
M
3
P
P
M
4
P
P
M
5
P
P
M
6
P
P
M
7
P
P
M
M
R
E
H
T
_
O
X
_
8
P
P
M
1
_
R
K
P
S
_
D
N
G
2
_
R
K
P
S
_
D
N
G
1
_
O
I
P
G
2
_
O
I
P
G
3
_
O
I
P
G
4
_
O
I
P
G
5
_
O
I
P
G
6
_
O
I
P
G
7
_
O
I
P
G
8
_
O
I
P
G
9
_
O
I
P
G
0
1
_
O
I
P
G
1
1
_
O
I
P
G
P
C
N
_
D
N
G
1
S
_
D
N
G
2
S
_
D
N
G
3
S
_
D
N
G
4
S
_
D
N
G
1
_
D
N
G
2
_
D
N
G
3
_
D
N
G
4
_
D
N
G
5
_
D
N
G
6
_
D
N
G
7
_
D
N
G
T
U
O
_
M
9
1
L
A
T
X
_
D
N
G
C
D
A
O
X
_
D
N
G
O
X
C
T
_
D
N
G
TCXO_IN
XTAL32K_IN
XTAL32K_OUT
TCXO_A0_EN
TCXO_OUT_A0
TCXO_D0_EN
TCXO_OUT_D0
TCXO_D1_EN
TCXO_OUT_D1
SLEEP_CLK0
PS_HOLD
CBLPWR_N
KPD_PWR_N
RESIN_N
OPTION1
SBDT
PON_RESET_N
PM_INT_N
PA_THERM
PM_TRK_LO
TRK_LO_ADJ
HSED_BIAS1
HSED_BIAS2
EXT_IN_LP
EXT_IN_RM
HPA_IN_LP
HPA_IN_RM
HPA_GNDREF
SPKR_IN_M
SPKR_IN_P
HPA_CM_SNS
HPA_OUT_L
HPA_OUT_R
SPKR_BYP_M
SPKR_BYP_P
SPKR_OUT_M
SPKR_OUT_P
VSW_S1_1
VSW_S1_2
VREG_S1
VSW_S2_1
VSW_S2_2
VREG_S2
VSW_S3_1
VSW_S3_2
VREG_S3
VSW_S4
VREG_S4
VREG_L1
VREG_L2
VREG_L3
VREG_L4
VREG_L5
VREG_L6
VREG_L7
VREG_L8
VREG_L9
VREG_L10
VREG_L11
VREG_L12
VREG_L13
VREG_L14
VREG_L15
VREG_L16
VREG_L17
VREG_L18
VREG_L19
NCP_CTC1
NCP_CTC2
VREG_NCP
NCP_FB
LED_ATC
VIB_DRV_N
GND_DRV
O
I
_
M
S
M
_
D
D
V
R
K
P
S
_
A
N
A
D
D
V
1
_
R
K
P
S
_
N
I
D
D
V
2
_
R
K
P
S
_
N
I
D
D
V
1
_
G
H
C
V
2
_
G
H
C
V
1
R
W
P
_
H
P
V
2
R
W
P
_
H
P
V
N
_
T
E
F
_
T
A
B
T
A
B
V
N
I
O
C
V
M
R
E
H
T
_
F
E
R
V
M
R
E
H
T
_
T
T
A
B
P
Y
B
_
F
E
R
D
N
G
_
F
E
R
1
_
1
S
_
D
D
V
2
_
1
S
_
D
D
V
2
S
_
D
D
V
3
S
_
D
D
V
4
S
_
D
D
V
7
L
_
P
C
N
_
D
D
V
S
P
M
S
_
D
D
V
2
L
_
1
L
_
D
D
V
1
_
6
L
_
5
L
_
4
L
_
3
L
_
D
D
V
2
_
6
L
_
5
L
_
4
L
_
3
L
_
D
D
V
1
_
1
1
L
_
0
1
L
_
9
L
_
8
L
_
D
D
V
2
_
1
1
L
_
0
1
L
_
9
L
_
8
L
_
D
D
V
1
_
6
1
L
_
5
1
L
_
4
1
L
_
3
1
L
_
2
1
L
_
D
D
V
2
_
6
1
L
_
5
1
L
_
4
1
L
_
3
1
L
_
2
1
L
_
D
D
V
9
1
L
_
8
1
L
_
7
1
L
_
D
D
V
R424
0
C430
DNI
30
4
R
K0
1
C435
DNI
C405
1u
VREG_P3_2.85V
1u
C441
VBAT
R427
DNI
TP406
R406
0
R425
DNI
CN400
11
10
9
5
4
3
2
1
8
7
6
81
4
R
K0
01
00
4
X
FC-135_32.768KA-AC3
32.768KHz
2
1
01
4
R
K0
86
80
4
C
u1
R400
1K
U400
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
20
4
R
K7.
4
VA400
ZD400
C434
100u
OJ400
OJ401
C413
u1
66
4
C
u1.
0
VREG_MSME_1.8V
R426
0
R428
0
C427
0.1u
TP401
TP403
R413
51
+1V2_MSM_A2_WCN
+1V8_WLAN_TCXO
+1V2_WLAN_WCN
+1V3_MSM_A3_WCN
06
4
C
2.2u
25
4
C
1u
74
4
C
2.2u
64
4
C
2.2u
TP407
CN401
3
2
1
D1
D2
C412
10u
nPON_RST
PMIC_TCXO
SLEEP_CLK
TCXO_EN
JTAG_PS_HOLD
VBAT
GSM_PA_DAC_REF
TCXO_PM_19.2MHZ
UART_TX
UART_RX
USBH_DP
PS_HOLD
PM_INT_N
KL
C_
1
MI
S
KPD_PWR_N
VREG_MSME_1.8V
MINIABB_INT
GND
TRK_LO_ADJ
OI
_1
MI
S
VSNS_RF_SMPS
Y
E
K_
T
H
GI
L
K
C
A
B
PMIC_SSBI
MINIABB_I2C_SCL
MINIABB_I2C_SDA
VBUS_CHG_IN
USBH_DM
VSNS_MSMC1_1.1V
VSNS_MSME_1.8V
VSNS_MSMC2_1.1V
TRK_LO
DI
L
A
V_
G
H
C
VCHG_VBUS
VCOIN
NI
O
C
V
N
OI
SI
V
E
R_
B
C
P
PCB_REVISION
E
S
N
E
S_
T
A
B
V
VBAT_SENSE
USB_ID
USB_ID
VIB_DRV_N
WLAN_CLK_REQ_WCN
BT_FM_CLK_WCN
WLAN_CLK_WCN
BT_FM_CLK_REQ_WCN
MINIABB_DP
MINIABB_DP
MINIABB_DM
MINIABB_DM
KL
C_
1
MI
S
U_
M
S
M
A
T
A
D_
1
MI
S
U_
M
S
M
T
S
R_
1
MI
S
VBAT_TEMP
P
M
E
T_
T
A
B
V
P
P
M_
P
M
E
T_
T
A
B
V
VBAT_TEMP_MPP
Hole
Mini ABB_NS
Must Check Battery Conn. Pin Map
Battery Conn.
2mm
2mm
2mm
BACK-UP BATTERY
VBUS 2mm
u-USB Connector
ADC
96.A9
83.95
52.5E
43.51
35.42
26.34
17.25
00.16
ADC Range(HEX.)
130K
47K
36K
27K
19.1K
12K
5.6K
R2
100K
R1
1.1
1.0
F
E
D
C
B
A
Revision
PCB Revision
100K
100K
100K
100K
100K
100K
100K
100K
R1
R2
Rev.B Change