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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
100p
C1138
1
16.369MHz
KT2520F16369ACW18T
X1101
4
3
5
2
6
GND1
VCC
NC1
NC2
GND2
OUT
1.8p
C1144
61
11
C
u1.
0
9.1n
L1110
2.2u
C1143
02
11
C
u1.
0
1u
C1110
100p
C1152
TP1124
V_LDO4_1V8
U1103
ALM-1612
3
2
1
4
5
VDD
FIL_OUT
D_
S
RF_IN
GND
R1113
3.9K
C1145
330p
R1112
10
L1107
1.8n
47p
C1142
2.2u
C1129
C1146
0.5p
L1112
DNI
K0
01
60
11
R
K0
01
70
11
R
22p
C1135
TP1125
TP1126
10
11
BF
2.2u
C1131
100n
L1109
VDD_1V8
10n
C1130
VDD_3V3_ALWAYS
VDD_GPS_1V8
30
11
BF
2.2u
C1121
FL1100
5 2
4
1
3
G3
IN
OUT
G1
G2
CN1108
1
DNI
L1105
TP1127
100p
C1137
DNI
C1136
ANT1101
U1102
4
F
2
E
3
F
2
F
C3
D3
D4
E4
B3
B5
C4
C6
G4
B2
B1
E5
E3
C2
A1
G3
C5
A4
E6
G6
B6
A2
A3
E1
C1
D2
D5
D1
A5
G2
F1
G1
6
A
5
F
4
B
6
D
6
F
5
G
T
A
B
_
D
D
V
E
R
P
_
D
D
V
1
C
D
D
V
2
C
D
D
V
E
R
O
C
_
2
P
1
D
D
V
O
I
D
D
V
RFIP
VSSIF
VSSLNA
GPS_CAL
TCXO/TSXO
LPO_IN
ADCP
VDDADC
ADCN
SYNC/PPS_OUT
IFVALID
RST_N
REGPU
TM2
SDA1
SCL1
AUXOP
CAL_REQ/ANT_SEL
VSSADC
VDD_AUX_O
VDD_AUX_IN
HOST_REQ
LNA_EN
REF_CAP
SCL2/UART_TX
SDA2/UART_RX
UART_nRTS
UART_nCTS
AVSS
VSSC1
VSSC2
VSSC3
A
N
L
D
D
V
F
I
D
D
V
L
P
D
D
V
F
R
G
_
2
P
1
D
D
V
C1154
100p
TP1123
600
FB1102
ANT1106
2.2u
C1134
41
11
C
u1.
0
2.2u
C1133
SW1100
G1
ANT
G2
2.2u
C1132
CN1107
1
L1108
9.1n
3
5
1
1
C
p
0
0
1
C1113
10u
DNI
R1115
DNI
R1114
100K
R1103
00
11
BF
00
6
DNI
C1148
VDD_1V8
U1100
SWB-B25
26
95
82
72
62
52
42
32
22
12
02
91
81
17
16
15
92
85
30
31
14
32
13
33
12
34
11
35
10
36
9
37
8
38
7
39
6
40
5
41
4
42
3
2
06
1
43
44
45
46
74
84
94
05
15
25
35
45
55
65
75
16
1
D
N
G
C
N
Y
S_
M
C
P_
T
B
NI
_
M
C
P_
T
B
KL
C_
M
C
P_
T
B
N_
ST
C_
T
R
A
U_
T
B
N_
ST
R_
T
R
A
U_
T
B
D
XT
_T
R
A
U_
T
B
D
X
R_
T
R
A
U_
T
B
4
D
N
G
KL
C_
P
E
EL
S
7
D
N
G
T
N
A_
X
R_
MF
GND9
FM_TX_ANT
GND2
OSC_OUT
GND11
31
D
N
G
2G4_ANT
GND14
OSC_IN
BT_WAKE_B
GND15
BT_HOST_WAKE_B
AUD_IN_R
I2S_DI
AUD_IN_L
I2S_DO
AUD_OUT_R
I2S_CK
AUD_OUT_L
I2S_WS
GND8
BT_ENABLE
VBAT2
WL_ENABLE
VBAT1
WL_HOST_WAKE_N
GND3
WL_WAKE_N
SR_VLX1
SDIO_CMD
SR_AVDD_2P5
GND10
T
U
O_
M
C
P_
T
B
A
P_
D
D
V
SDIO_D3
SDIO_D2
GND12
1
D_
OI
D
S
0
D_
OI
D
S
KL
C_
OI
D
S
Q
E
R_
KL
C
X
R_
T
R
A
U
XT
_T
R
A
U
OI
D
D
V
D
S_
OI
D
D
V
NI
_
O
DL
_
NI
V
E
R
O
C_
D
D
V
LL
P_
OI
D
A
R_
D
D
V
5
D
N
G
6
D
N
G
91
11
C
u7.
4
1n
C1111
38.4MHz
KT3225L38400UCW28TA0
X1100
3
2
4
1
GND1
VCC
GND2
OUT
10u
C1108
0.1u
C1109
V_POWERRAIL
3.3u
L1102
u7.
4
81
11
C
u7.
4
71
11
C
02
11
PT
91
11
PT
TP1122
TP1106
TP1105
TP1113
TP1114
TP1101
TP1102
TP1103
TP1104
V_POWERRAIL
U1101
5
3
2
4
1
VOUT
VIN
GND
STBY
D
N
G
P
1u
C1107
470n
C1106
WLAN_CLK
WLAN_SDIO[0]
WLAN_SDIO[1]
WLAN_SDIO[2]
WLAN_SDIO[3]
WLAN_CMD
WLAN_WAKEUP
WLAN_HOST_WAKEUP
WLAN_EN
BT_EN
BT_HOST_WAKEUP
BT_WAKEUP
BT_PCM_DIN
CLK32K
CLK32K
BT_UART_TXD
BT_UART_RXD
BT_UART_CTS_N
BT_UART_RTS_N
GPS_RESET_N
GPS_PWR_ON
GPS_PWR_ON
GPS_UART4_TXD
GPS_UART4_RXD
GPS_UART4_CTS_N
GPS_UART4_RTS_N
CP_26M_OUT
CLK_IN
CLK_IN
WL_CLK_REQ
WL_CLK_REQ
GPS_TXON_IND
BT_PCM_SYNC
BT_PCM_DOUT
BT_PCM_CLK
VDD_GPS_1V8
GPS_16.369MHz
GPS_16.369MHz
BT_EN_1
BT_EN_1
WLAN_EN_1
WLAN_EN_1
BCM4751
GPS
TCXO for GPS
TMUS
Carrier
VDF
Blue (Dot Box)
Red Block (Dash-Dot Box)
BT/WiFi
LDO & TCXO for BT/WiFi
SWB-B25