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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
33u
C405
L400
4.7u
CN401
3
2
1
D1
D2
D400
FL400
1
IN
OUT
GND1 GND2
00
4
DZ
p2
2
20
4
C
C404
22p
R418
0
u1
70
4
C
C411
2.2u
C460
1u
2.2u
C447
2.2u
C446
U401
5
3
2
4
1
VOUT
VIN
GND
STBY
D
N
G
P
R401 10K
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
TP400
C408
1u
DNI
C465
4.7u
L402
L401
4.7u
00
4
C
u1
1u
C410
C423
10u
p2
2
04
4
C
p0
01
14
4
C
FL401
5
6
3
1
4
2
P2
P4
P1
P3
6
P
5
P
10
4
DZ
10
4
D
VBAT
0.1u
C439
80
4
R
K6.
08
30
4
C
u1
4.7u
L403
21
4
R
K0
86
R411
470K
C443
33u
u0
1
33
4
C
C436
0.1u
30
4
R
K0
1
1u
C445
C450
2.2u
2.2u
C457
2.2u
C459
u7.
4
45
4
C
C463 22p
C464 22p
200K
R419
TP403
61
4
R
K0
51
VREG_MSMP_2.6V
TP402
TP401
z
H
K
8
6
7
.
2
3
F
P5
_2
1_
51
3
M
C
00
4
X
2
1
4.7
R402
VREG_MSME_1.8V
C424
1n
C451
2.2u
U402
9
J
8
J
7
J
6
J
5
J
9
H
8
H
7
H
6
H
5
H
9
G
8
G
7
G
6
G
5
G
9
F
8
F
7
F
6
F
5
F
9
E
8
E
7
E
6
E
5
E
H1
E10
F1
F10
E1
C12
N2
B1
M12
B2
K7
A5
N13
A4
M13
B5
B4
G10
A7
D9
A6
H12
B7
B6
C13
A13
D10
A12
K10
H10
G12
J10
G1
M1
K4
D13
J4
E12
H4
N11
M2
A3
L2
A10
H2
A8
H13
K2
G13
J2
A11
G4
K13
F4
E13
D5
B13
B3
A9
M5
N12
N3
J13
N1
A2
M3
K6
M4
K5
N4
K9
M9
K8
N10
M11
M6
L12
N6
A1
M8
D4
N8
B12
J1
D8
K1
N5
M7
2
G
2
1
D
7
D
8
B
0
1
M
6
D
9
B
2
1
J
3
1
F
2
1
F
2
1
K
7
N
9
N
0
1
B
3
1
L
1
1
B
2
F
4
E
2
C
1
C
1
D
1
L
2
D
2
E
G
H
C
V
N_
LT
C_
G
H
C
S
U
B
V_
B
S
U
N_
LT
C_
B
S
U
P_
S
N
SI
M_
S
N
SI
N_
T
EF
_T
A
B
T
A
B
V
NI
O
C
V
P
U
K
C
A
B_
V
A
N
A_
D
D
V
E_
1
C_
D
D
V
A
P_
2
C_
D
D
V
2
P
G_
D
D
V
6
P
G_
D
D
V
2
E
M
S
M_
D
D
V
P
M
S
M_
D
D
V
1F
R_
D
D
V
2F
R_
D
D
V
MI
U
R_
D
D
V
R
K
P
S_
L_
D
D
V
R
K
P
S_
R_
D
D
V
O
X
CT
_
D
D
V
N
AL
W_
D
D
V
MPP_1
MPP_2
VSW_5V
MPP_3
VREG_5V
MPP_4
VSW_MSMC1
MPP_5
VREG_MSMC1
MPP_6
VSW_MSMC2
MPP_7
VREG_MSMC2
MPP_8
VSW_MSME
MPP_9
VREG_MSME
MPP_10
VSW_PA
MPP_11
VREG_PA
MPP_12
MPP_13
VREG_GP1
MPP_14
VREG_GP2
MPP_15
VREG_GP3
MPP_16
VREG_GP4
MPP_17
VREF_GP5
MPP_18
VREG_GP6
MPP_19
VREG_MMC
MPP_20
VREG_MSMA
MPP_21
VREG_MSME2
MPP_22
VREG_MSMP
VREG_RFRX1
USB_ID
VREG_RFRX2
USB_D_P
VREG_RFTX
USB_D_M
VREG_RUIM1
USB_OE_N
VREG_SYNT
USB_DAT
VREG_TCXO
USB_SE0
VREG_USB
VREG_WLAN
SBST
MIC_BIAS
SBCK
SBDT_SSBI
REF_ISET
MSM_INT_N
REG_GND
REF_BYP
SPKR_IN_L_M
SPKR_IN_L_P
TCXO_IN
SPKR_OUT_L_M
TCXO_EN
SPKR_OUT_L_P
TCXO_OUT
SPKR_IN_R_P
SPKR_IN_R_M
XTAL_IN
SPKR_OUT_R_P
XTAL_OUT
SPKR_OUT_R_M
SLEEP_CLK
VIDEO_IN
AMUX_OUT
VIDEO_OUT
VIB_DRV_N
KPD_PWR_N
KPD_DRV_N
PON_RESET_N
LCD_DRV_N
PS_HOLD
FLSH_DRV_N
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
8
D
N
G
9
D
N
G
01
D
N
G
11
D
N
G
21
D
N
G
31
D
N
G
41
D
N
G
51
D
N
G
61
D
N
G
71
D
N
G
81
D
N
G
91
D
N
G
02
D
N
G
12
D
N
G
22
D
N
G
32
D
N
G
42
D
N
G
52
D
N
G
121K
R414
51
R415
C425
1n
C448
2.2u
n1
72
4
C
C456
2.2u
VBAT
VCHG_VBUS
82
4
C
n1
22
4
C
u2.
2
2.2u
C449
u2
2
13
4
C
u7.
4
25
4
C
0.1u
C409
92
4
C
n1
C458
1u
2.2u
C455
10u
C426
23
4
C
u2
2
C419
0.1u
0.1u
C420
0.1u
C421
0.1u
C416
C417
0.1u
VBAT
0.1u
C418
R413
10K
C462
0.1u
33p
C413
35
4
C
u7.
4
2.2u
C444
0.1u
C415
43
4
C
u2
2
C412
0.1u
03
4
C
n1
VREG_MSMP_2.6V
2.2u
C461
C442
33u
71
4
R
K0
03
2.2K
R400
CN400
11
10
9
5
4
3
2
1
8
7
6
R1
0
0
R2
ZD402
D402
ZD403
VBAT
VBAT
VBAT
VBAT
VREG_MSMP_2.6V
VREG_MSMP_2.6V
nPON_RST
PMIC_TCXO
SLEEP_CLK
PMIC_SSBI
TCXO_EN
JTAG_PS_HOLD
USBH_DM
REMOTE_PWR_ON
AMUX_OUT
GSM_PA_DAC_REF
TCXO_PM_19.2MHZ
UART_TX
UART_RX
USBH_DP
PS_HOLD
PM_INT_N
VREG_MSMA_2.6V
VREG_MSMA_2.6V
VCHG_VBUS
VREG_TCXO_2.85V
MINIABB_INT
MINIABB_I2C_SCL
MINIABB_I2C_SDA
MSM_LCD_VSYNC_O
VBUS_CHG_JIG
VSNS_MSME_1.8V
VREG_MSMC2_1.25V
VREG_AUX2_2.9V
VSNS_MSMC1_1.25V
VREG_MSMC1_1.25V
VSNS_MSMC2_1.25V
VREG_MSME_1.8V
VREG_USB_3.3V
VREG_USIM_2.85V
VREG_LCD_2.8V
KPD_PWR_N
VREG_LCD_1.8V
VREG_MMC_3.0V
VREG_TOUCH_3.0V
NI
O
C
V
VREG_PROX_2.8V
CAM_AVDD_2.8V
CAM_DVDD_1.8V
CAM_IOVDD_2.8V
LCD_VSYNC_O
VREG_HS_MIC_1.8V
HW_RESET
VREG_MOTION_2.6V
MOTOR_PWR_N
SIM_PWR_EN
GND
GND
GND
VREG_SMPS_2.1V
VREG_RF_2.7V
VBAT_TEMP
VBAT_TEMP
VBAT_SENSE
VBAT_SENSE
PCB_REVISION
PCB_REVISION
VBUS_CHG_IN
VBUS_CHG_IN
USB_3.3V_EN
USB_3.3V_EN
USB_ID
USB_ID
KPD_DRV_N
MAX_DM
MAX_DM
MAX_DP
MAX_DP
VBUS 2mm
Mini ABB_RT
2mm
CITIZEN -> NDK
REV.C_0408_CHANGED
2mm
A
m
0
8
e
l
d
n
a
H
n
a
C
e
c
a
r
T
0603
0
_
1
_
v
e
R
1.04V
1.30V
430K
R1
300K
0.62V
1.73V
m
m
5
.
0
9
N
,
7
N
close to each other
1608
Place close to PM7540 pins
Route together
USB 3.3V LDO
0.6mm
These CAPs close to inductors
0.6mm
0.6mm
Place in PM7540 room at shield edge
2mm
PM7540
Battery Conn.
Local Ground Plan
0.5mm
1%
Place crystal and load caps close to PM7540
100K
0.81V
680K
Rev.1.2
E&J
Rev.1.0
0.16V
HKAIN0 : PCB Revision Check ADC
150K
150K
Rev.1.1
B&G
C&H
1%
D&I
1.93V
REV
150K
u-USB Connector
150K
47K
REV.C_0408_CHANGED
68K
10K
2.13V
R2
R2
150K
Must Check Battery Conn. Pin Map
A&F
150K
ADC
R1
150K
150K
150K