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7. CIRCUIT DIAGRAM
LGE Internal Use Only
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
L
K
J
I
H
G
F
E
D
C
B
A
L
K
J
I
H
G
F
E
D
C
B
A
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
VREG_MSMP_2.6V
8.2p
C101
1880,1960MHz
B7686
FL101
7
9
2
5
4
8
1
3
6
ANT
TX_IN
RX_OUT1
RX_OUT2
GND1
GND2
GND4
GND3
GND5
100n
L101
C102 1.5n
R101
2.2K
R102
18
100p
C103
C175
15p
19.2MHz
X101
DSA321SCA
2
1
3
4
VDD
OUT
VCONT
GND
R103
49.9
2
1
2.7n
C114
2
1
27p
L102
C106
1n
C107
100n
100
R104
C108
10n
9
0
1
C
n
1
9p
L103
C110 33p
DNI
C111
5
0
1
R
0
0
3
0
0
3
6
0
1
R
C112 6p
2.7n
C113
2
1
0.5p
C162
C138
2.2p
1
2
33p
L105
1
2
C115
15n
C142 1.8n
2
1
C117
33p
1
2
2.7n
C118
2
1
DNI
C159
1
2
L106
15n
15p
C120
C121
22n
VREG_TCXO_2.85V
+VPWR
C122
33p
L107
10n
0
C123
2
1
DNI
C181
1
2
L108 33p
1
2
L109 33p
1
2
0.5p
C124
1
2
L110 DNI
1
2
FL102
836.5MHz
B9425
5
3
2
4
1
IN
OUT
G1
G2
G3
DNI
C156
1
2
L111
DNI
1
2
R110
1n
DNI
L112
1
2
2.2p
C134
1
2
DNI
C127
1
2
1n
C128
2
1
DNI
C129
1
2
L113
DNI
2
1
0
0
1
7
0
1
R
2
1
8
0
1
R
0
0
1
2
1
TQM7M5012H
U101
10
5
6
4
12
7
3
8
11
1
9
2
BAND_SELECT
GSM_OUT
DCS_PCS_IN
DCS_PCS_OUT
GSM_IN
TX_EN
GND1
GND2
VBATT
NC1
VRAMP
NC2
2.2u
C130
1
2
DNI
L114
2
1
82p
C131
DNI
C132
1
2
DNI
C133
1
2
0.5p
L122
1
2
3.3n
C144
2
1
L121
DNI
1
2
1.8n
C116
2
1
C135
DNI
1
2
DNI
C136
1
2
0
4
1
1
R
2
1
1p
L115
1
2
C139
1n
1
2
1n
C140
1
2
DNI
C141
1
2
DNI
C125
1
2
DNI
L116
1
2
DNI
L117
1
2
DNI
L123
1
2
33p
C143
1
2
L119
DNI
2
1
4.7p
L120
1
2
C149 DNI
1
2
C145
680p
1
2
C146
680p
1
2
+VPWR
+VPWR
C147
330p
1
2
C126
0
2
1
R109
68
2
1
+VPWR
B7671
FL103
836.5 MHz,881.5 MHz
9
5
7
3
1
2
8
4
6
ANT
GND2
RX_OUT2
GND1
RX_OUT1
TX_IN
GND4
GND3
GND5
10n
L118
2
1
4.7n
C150
2
1
12n
C160
2
1
ACPM-5201
U102
6
5
7
4
8
3
9
2
10
1
11
PGND
VCC1
VCC2
RFIN
RFOUT
VBP
ISO
VMODE
GND
VEN
CPL
1.5n
C119
2
1
SW101
RF-800
G2
ANT
RF
G1
2.2u
C151
1
2
39p
C152
C153
1n
C154
10u
L124
DNI
1
2
C155
1n
1
2
C137
DNI
1
2
C157 1n
2
1
B9414
FL104
1950MHz
5
3
2
4
1
IN
OUT
G1
G2
G3
C158
330p
1
2
+VPWR
TP
TP101
8.2p
C148
1
2
9.1n
C161
0
C163
6.8n
R111
2
1
FL105
85090019002100
6
5
4
3
7
9
11
20
24
22
23
21
13
12
14
10
15
8
1
18
19
2
16
17
PCN_RX2
PCN_RX1
ANT
PCS_RX2
PCS_RX1
GND1
GND2
GSM850_RX_EGSM_RX2
GND3
GSM850_RX_EGSM_RX1
GND4
GND5
WCDMA_850
GND6
WCDMA_1900
GND7
WCDMA_2100
GSM850_EGSM_TX
PCN_PCS_TX
D
D
V
1
L
R
T
C
2
L
R
T
C
3
L
R
T
C
4
L
R
T
C
8.2n
L104
2
1
B7696
FL106
1950 MHz,2140 MHz
9
5
7
4
1
2
8
3
6
ANT
TX_IN
RX_OUT2
GND1
RX_OUT1
GND2
GND4
GND3
GND5
10n
C105
C104
1p
DNI
L125
2
1
ANT102
ANTENNA_PAD
ANTENNA_PAD
ANT101
10p
C164
C165
10p
C166
1u
10p
C167
1n
L126
VREG_MSMP_2.6V
18p
C168
C169
18p
L127
DNI
DNI
L128
C170 100p
1u
C171
470K
R112
1u
C172
2450MHz
1
C
4
2
0
2-
T
B
0
5
4
2
5
2
A
E
D
7
0
1
L
F
4
3
2
1
NI
T
U
O
1
D
N
G
2
D
N
G
BTS4025
U103
4
A
3
B
3
A
D3
E1
D4
C3
F6
F1
C6
F5
D6
E6
C4
E4
F3
D5
C1
B5
E5
F4
A5
B4
C5
1
D
2
B
1
B
1
A
2
D
6
B
2
F
3
E
2
E
2
C
2
A
6
A
D
N
G
1
_
D
N
G
A
2
_
D
N
G
A
3
_
D
N
G
A
4
_
D
N
G
A
5
_
D
N
G
A
GI
D
_
G
E
R
V
A
N
A
_
G
E
R
V
1
A
_
D
D
V
2
A
_
D
D
V
3
A
_
D
D
V
4
A
_
D
D
V
VDD_IO
SYSRST_B
VDD_DIG
PCM_IN
PCM_OUT
PCM_SYNC
VDD_ANA
PCM_CLK
VDD_PA
AUX_TXD
HCI_5
HCI_4
HCI_3
HCI_2
HCI_1
RF_BIAS
HCI_0
MFP_4
MFP_3
RF_TXRX
CLKREQ_OUT
K
L
C
_
P
_
L
A
T
X
N
_
L
A
T
X
NI
_
K
2
3
K
L
C
DSX321G-32M
X102
32MHz
2
1
3
4
VREG_MSME_1.8V
U104
ACPM-5305
6
5
7
4
8
3
9
2
10
1
11
PGND
VEN
CPL
VMODE
GND
VBP
ISO
RFIN
RFOUT
VCC1
VCC2
DNI
C173
1
2
2.7n
C176
C177
100p
C178
100p
836.5MHz,25MHz
D1048
FL108
8
6
4
3
2
7
5
1
RFIN
RFOUT
VC
1
D
N
G
2
D
N
G
3
D
N
G
4
D
N
G
5
D
N
G
33n
C179
2K
R113
ANTENNA_PAD
ANT103
ANTENNA_PAD
ANT104
C180
DNI
1
2
1n
C174
2
1
TRK_LO_ADJ
PA_R0
PA_R0
D2D_SLEEP_CLK
UART1_RX_DATA
UART1_TX_DATA
UART1_CTS_N
UART1_RFR_N
BT_PWR_ON
BT_PCM_SYNC
BT_PCM_DIN
BT_PCM_DOUT
BT_PCM_CLK
WLNA_HB2_IN_M
WLNA_HB2_IN_P
WLNA_LB_IN_P
WLNA_LB_IN_M
WCDMA_2100_TX_OUT
WCDMA_900_TX_OUT
WLNA_HB1_IN_M
WLNA_HB1_IN_P
GLNA_HB_IN_M
GLNA_HB_IN_P
GLNA_LB_IN_M
GLNA_LB_IN_P
GSM_PA_RAMP
GSM_PA_BAND
GSM_PA_EN
TX_GSM_LB
TX_GSM_HB
19M_XTAL_IN
WCDMA_PA_ON1
PWR_DET
PA_R1
PA_R1
WCDMA_2100
WCDMA_2100
PCS_IN_P
PCS_IN_P
PCS_IN_M
PCS_IN_M
WCDMA_LB
WCDMA_LB
WCDMA_PA_ON0
ANT_SEL[0]
ANT_SEL[1]
ANT_SEL[2]
ANT_SEL[3]
GSM_SW_MODE
WCDMA_1900
WCDMA_1900
WCDMA_1900_TX_OUT
1
1
0
WCDMA_1900
0
0
WCDMA_2100
1
Close to QSC
0
ANTENNA SWITCH MODULE LOGIC
ANT_SEL1
ANT_SEL2
ANT_SEL3
GSM850/EGSM TX
3 dB
PCN/PCS TX
BLUETOOTH
WB850/WB900
WB 1900
WB 2100
GSM850 RX
EGSM RX
PCN RX
0
1
0
0
1
1
1
0
0
0
0
0
0
0
1
0
WCDMA_850/900
WCDMA_2100
WCDMA_850/900
0
GSM
GSM_PA_BAND
0
0
0
0
0
0
ANT_SEL0
PCS RX
1
1
0
1
GSM with FEM
1
1
WCDMA_1900
TCXO CIRCUIT
DCS/PCS
HIGH
LOW
MODE
BTS4025
GU280 Rev 1.0_ECO (Band I + GSM Quad)
ACPM-5201