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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
TP409
U405
2
C
2
D
2F
3
D
6
C
7
A
7
G
5
E
4
E
6
B
B7
E3
E6
B3
E8
B5
D7
D8
G3
C8
G2
F5
A4
F4
G6
C7
F6
A8
F3
E7
C4
F7
B2
B4
D1
G4
2
A
1
C
1
B
1
E
1F
1
G
1
A
5
A
8
B
8F
5
G
6
A
8
G
3
A
T
A
B
V
3
O
D
D
V
2
O
D
D
V
1
O
D
D
V
3
C
D
D
V
2
C
D
D
V
1
C
D
D
V
G
E
R
V
X
P
D
D
V
F
R
D
D
V
A
NL
D
D
V
FI
D
D
V
FT
D
D
V
V
H
G
E
R
V
RES
RFP
RST_N
REG_EN
SCL
TM0
SDA
TM2
SPIM_CLK
PCM_IN
SPIM_CS_N
PCM_OUT
PCM_CLK
LPO_IN
PCM_SYNC
XIN
UART_TXD
XOUT
UART_RXD
UART_RTS_N
GPIO_0
UART_CTS_N
GPIO_1
TCXO_OR_OUT_GPIO_5
TCXO_OR_IN_GPIO_6
GPIO_7
NI
_
X
E
O
C
0T
U
O_
X
E
O
C
1T
U
O_
X
E
O
C
7
S
S
V
6
S
S
V
5
S
S
V
4
S
S
V
3
S
S
V
2
S
S
V
1
S
S
V
1V8_VDD
60
4
R
n0
72
TP7
U401
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
6
C
N
GND9
NC5
GND2
OSC_OUT
GND11
31
D
N
G
2G4_ANT
GND14
OSC_IN
BT_WAKE_B
GND15
BT_HOST_WAKE_B
NC7
NC4
NC3
NC2
NC1
NC8
NC9
SEL_SPI/SDIO
GND8
BT_ENABLE
VBAT2
WL_ENABLE
VBAT1
WL_HOST_WAKE_N
GND3
WL_WAKE_N
SR_VLX1
SDIO_CMD/SPI_DI
SR_AVDD_2P5
GND10
T
U
O_
M
C
P_
T
B
A
P_
D
D
V
SDIO_D3/SPI_CS
SDIO_D2
GND12
Q
RI
_I
P
S/
1
D_
OI
D
S
O
D_I
P
S/
0
D_
OI
D
S
KL
C_I
P
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
TP5
TP1
GND404
TP3
TP4
TP2
4.7u
C473
4.7u
C474
4.7u
C476
C472
DNI
C475
DNI
1u
C478
TP411
R415
100K
C487
DNI
10u
C496
TP408
10u
C497
1
R414
1n
C423
FL401
2450MHz
4
2
3
1
IN
OUT
GND1
GND2
TP6
L406
8.2n
1n
C452
TP412
C481
1u
10p
C436
ANTPAD_GD880
ANT402
FEED
70
4
R
n0
01
C410
0.1u
C484
4.7u
0
02
4
R
C427
15p
0.5p
L402
L416
4.7n
SW401
G2
ANT
RF
G1
C409
10u
3.3u
L415
C445
1.8n
ANT403
1.2p
C471
GND403
6.8n
C421
7p
C424
C470
DNI
1.2p
C425
Q401
2
1
3
C430
1u
24K
R410
22n
L401
DNI
C486
DNI
C402
100p
R422
5.1ohms
C491
470n
C490
470n
R425
4.7K
270ohms
R424
C489 330p
330p
C432
1n
C433
R409
270ohms
1n
C434
4.7K
R408
470n
C428
470n
C431
L417
22n
R423
24K
5.1ohms
R421
1u
C488
Q402
2
1
3
FB404
600
3.3p
C437
C438
10n
C440
10n
C441
10p
2.2u
C442
VAUX
1V8_VDD
C443
2.2u
1n
C444
1V8_VDD
ZD401
DNI
C446
74
4
C
I
N
D
I
N
D
84
4
C
2.2u
C449
C450
56p
U404
12
11 01 9 8 7
13
6
14
5
15
4
16
3
17
2
81
1
91 02 12 22 32
G
UL
S_
D
N
G
P
M
A
R
V
EL
B
A
N
E_
XT
0L
RT
C
P
G
1L
RT
C
P
G
GND1
TT
A
B
V
GND2
GPCTRL2
RFIN_LB
GND9
GND3
GND8
RFIN_HB
ANT
GND4
RX4
5
D
N
G
6
D
N
G
7
D
N
G
1
X
R
2
X
R
RX3
L408
0.5p
C451
22p
C460
1n
C453
4.7u
1n
C454
L403
3.3n
L404
3.3n
FL402
869M894M,925M960MHz
10
5
6
3
7
2
9
4
8
1
IN_881_5
OUT_881_5
IN_942_5
OUT_942_5
GND1
GND2
GND3
GND4
GND5
GND6
C455
4.7u
33p
C456
C457
33p
33p
C458
C459
33p
L405
1.5n
L409
8.2n
33n
L407
C461
1n
VBAT
1p
C462
C463
1n
1n
C464
1K
R413
C465
10n
39p
C466
L410
12n
C467
33p
FL403
1805M1880M,1930M1990M
10
5
6
3
7
2
9
4
8
1
IN_1842_5
OUT_1842_5
IN_1960
OUT_1960
GND1
GND2
GND3
GND4
GND5
GND6
0.5p
R403
n2.
2
41
4L
R402
DNI
C469
100p
15K
R412
0.1u
C408
T
A
B
V
1V8_VDD
TP407
n2.
2
31
4L
0
R401
TP406
TP405
TP404
TP403
TP402
TP401
ANT404
GND401
26MHz
TG-5010LH-87N
X401
4
2
3
1
NC
OUT
GND
VCC
C483
1n
C419
1u
VDD_TCXO
U402
5
3
2
4
1
VOUT
VDD
GND
CE
D
N
G
P
R404
100K
1u
C418
C417
1u
VBAT
VDD_TCXO
CLK32K
CLK32K
DBB_BT_INT
DBB_BT_INT
BT_DBB_INT
BT_DBB_INT
BS2
BT_CLK
KL
C_
M
C
P
PCM_CLK
X
R_
M
C
P
PCM_RX
XT
_
M
C
P
PCM_TX
C
N
Y
S_
M
C
P
PCM_SYNC
SPI_CS
FM_LNA_EN
BS1
TX_EN
RX12
RX12X
RX34
RX34X
DCS_PCS_OUT
ST
C_
T
B
BT_CTS
ST
R_
T
B
BT_RTS
D
X
R_
T
B
BT_RXD
D
XT
_T
B
BT_TXD
TX_RAMP
GND
SPI_CLK
SPI_INT
SPI_MISO
BT_RESET
BT_RESET
WLAN_RESET
BS3
WLAN_REG_ON
CLK_REQ
CLK_REQ
XTALP
XTALP
SPI_MOSI
FSYS_EN
GSM_OUT
FM_ANT_2
FM_ANT
.
.
BLUETOOTH
FM Radio(LNA)
RF PART
BT & WIFI Module (LBEH19UNBC_MURATA)
LOW
LOW
LOW
GSM850
EGSM
DCS
PCS
LOW
LOW
LOW
TX_EN
LOW
HIGH
HIGH
LOW
HIGH
HIGH
HIGH
LOW
HIGH
BS1
LOW
LOW
LOW
MODE
LOW POWER MODE
RX2(GSM850_RX)
RX1(EGSM_RX)
(TX_ENABLE)
(GPCTRL2)
RX3(PCS_RX)
RX4(DCS_RX)
GSM850/900_TX
DCS/PCS_TX
BS3
LOW
HIGH
LOW
LOW
DCS
PCS
LOW
HIGH
GSM850
EGSM
HIGH
BS2
LOW
LOW
(GPCTRL1)
HIGH
(GPCTRL0)
WiFi TCXO
TCXO LDO