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BT/WiFi
GPS
TCXO for GPS
X1101
1
GND1
2
NC1
3
GND2
16.369MHz
LGE Internal Use Only
SWB-B25
CLK32K
BT_UART_TXD
BT_UART_RXD
BT_UART_CTS_N
BT_UART_RTS_N
TP1127
BT_PCM_CLK
TP1126
BT_PCM_DOUT
TP1125
BT_PCM_SYNC
TP1124
BT_PCM_DIN
ANT1101
C1154
100p
C1148
DNI
1
GND11
2
2G4_ANT
3
GND14
TP1105
4
BT_WAKEUP
BT_WAKE_B
TP1106
5
BT_HOST_WAKE_B
BT_HOST_WAKEUP
ANT1106
6
I2S_DI
7
I2S_DO
8
I2S_CK
9
I2S_WS
R1115
DNI
10
BT_EN
BT_EN_1
BT_ENABLE
BT_EN_1
R1114
DNI
11
WLAN_EN
WLAN_EN_1
WLAN_EN_1
WL_ENABLE
12
TP1113
WLAN_HOST_WAKEUP
WL_HOST_WAKE_N
TP1114
13
WL_WAKE_N
WLAN_WAKEUP
14
WLAN_CMD
SDIO_CMD
15
WLAN_SDIO[3]
SDIO_D3
16
WLAN_SDIO[2]
SDIO_D2
17
GND12
WLAN_SDIO[1]
WLAN_SDIO[0]
TP1122
WLAN_CLK
WL_CLK_REQ
BCM4751
VDD_GPS_1V8
VDD_3V3_ALWAYS
G3
AUXOP
VDD_GPS_1V8
A1
CAL_REQ/ANT_SEL
C2
VSSADC
VSSIF
KT2520F16369ACW18T
6
VSSLNA
VCC
E3
VDD_AUX_O
E5
5
VDD_AUX_IN
GPS_CAL
NC2
B1
HOST_REQ
TCXO/TSXO
TP1123
B2
4
C1129
LNA_EN
LPO_IN
OUT
GPS_16.369MHz
U1102
2.2u
VDDADC
C1130
10n
G4
C1131
REF_CAP
C1135
2.2u
22p
C6
GPS_UART4_RXD
SCL2/UART_TX
SYNC/PPS_OUT
C4
GPS_UART4_TXD
SDA2/UART_RX
IFVALID
B5
GPS_UART4_CTS_N
UART_nRTS
RST_N
B3
UART_nCTS
REGPU
GPS_UART4_RTS_N
E4
AVSS
D4
VSSC1
D3
VSSC2
C3
VSSC3
VDD_1V8
FB1102
600
C1132
C1133
C1134
2.2u
2.2u
2.2u
TP1101
TP1102
TP1103
TP1104
46
GND9
45
FM_TX_ANT
44
GND2
43
OSC_OUT
42
OSC_IN
CLK_IN
41
GND15
U1100
40
AUD_IN_R
39
SWB-B25
AUD_IN_L
V_POWERRAIL
38
AUD_OUT_R
37
AUD_OUT_L
36
GND8
35
VBAT2
34
VBAT1
33
GND3
32
SR_VLX1
C1108
C1109
31
SR_AVDD_2P5
30
10u
0.1u
GND10
C1110
L1102
1u
3.3u
VDD_1V8
C1113
10u
R1103
100K
V_LDO4_1V8
C1143
R1112
2.2u
10
R1113
3.9K
C1121
C1142
2.2u
47p
L1107
1.8n
5
2
L1108
9.1n
C1152
VDD
RF_IN
4
3
G1
U1103
RFIP
FIL_OUT
GND
ALM-1612
100p
F1
G2
L1109
C1144
100n
A5
1.8p
CP_26M_OUT
D1
GPS_16.369MHz
D5
CLK32K
D2
ADCP
C1
E1
ADCN
A3
A2
GPS_TXON_IND
B6
GPS_RESET_N
G6
GPS_PWR_ON
E6
TM2
SW1100
A4
SDA1
C5
SCL1
G1
ANT
G2
- 161 -
LDO & TCXO for BT/WiFi
V_POWERRAIL
U1101
4
1
VIN
VOUT
3
2
WL_CLK_REQ
STBY
GND
C1106
C1107
470n
1u
X1100
38.4MHz
1
4
GND1
VCC
2
3
C1111
1n
GND2
OUT
CLK_IN
KT3225L38400UCW28TA0
GPS_PWR_ON
C1145
330p
FL1100
3
CN1107
L1110
9.1n
G3
C1138
4
1
C1137
100p
1
OUT
IN
G2
G1
100p
5
2
CN1108
L1112
L1105
C1136
1
C1146
DNI
DNI
DNI
0.5p
Carrier
TMUS
Red Block (Dash-Dot Box)
VDF
Blue (Dot Box)
Copyright © 2011 LG Electronics. Inc. All right reserved.
7. CIRCUIT DIAGRAM
Only for training and service purposes
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Troubleshooting
