LG LG-E400 - 7 Circuit Diagram

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Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
7. CIRCUIT DIAGRAM
L1007
15n
u7.4351C
0R102
C1006 56p
R111
0
R110
0
R109
0
C137
DNI
9
81
C
n
7
.2
C117 8.2p
U102
6 5
7 4
8 3
9 2
10 1
11
PGND
VCC1VCC2
RFINRFOUT
VBPISO
VMODEGND
VENCPL
L1006
3.3n
0
R106
C118
100p
111C
n2.1
ANT103
R100
68n
0
R103
C1043
22u
U103
6 5
7 4
8 3
9 2
10 1
11
PGND
VCC1VCC2
RFINRFOUT
VBPISO
VMODEGND
VENCPL
L1031
DNI
C190
0.5p
C101
150p
C102
150p
C114
150p
C119
150p
C144
3.3p
VREG_SMPS_2.1V
2.2u
C187
C181
3.3n
C199
22n
C183
1p
1950MHz
FL102
5 3 2
4 1
INOUT
G1G2G3
C1044
47p
C138
6.8n
SW100
43
2
1
ANT COMMON
G3 G4
C174
2.2u
897.5MHz
FL104
5 3 2
4 1
INOUT
G1G2G3
56pC1007
521C u7.4
1201C
n2.2
C232
1.5n
C197
DNI
330p
C172
680p
C186
4001C
p2.2
U101
24
17
18
19
13
12
6
5
3
1
2
1620
51 4
1
4
22
11
10
9
8
7
23
21
TX_EN
PGND1
GND
GND2
GND3
RX1
RX2
VRAMP
5
D
NG
TNA
6
D
NG
GPCTRL0
GND7
GND8
GND1
BL_NIFR
BH_NIFR
GND4
TRX1
TRX2
GPCTRL1
VBATT
GPCTRL2
PGND2
FL1001
10532
64
7
8
91
IN
O1_1
O1_2
O2_1
C_C5 O2_2
1G_C 2G_C
3G_C
4G_C
531C u7.4
DNIC1009
FL1002
10532
64
7
8
91
IN
O1_1
O1_2
O2_1
GND O2_2
1G_C 2G_C 3G_C 4G_C
n7.2
591C
L1012
9.1n
871C
n7.2
DNI
L116
FL2
75
8
4 9
2
3
16
ANT RX1
TX
GND1
GND5GND2
RX2
GND3 GND4
110
R123
110
R124
121L
n3
L1011
0.75p
2501C
n9.3
R128
0
R120
0
221L
p72
2401C
n9.3
12
R127
42
1
L
n3.3
09
0
1C
p81
5401C p001
p00
1
740
1
C
840
1
C p00
1
p
00
11
50
1
C
FL1008
1950MHz,2140MHz
75
84
92
3
16
ANT RX
TX
GND1 GND6
GND2 GND5
GND3 GND4
R121
DNI
L113 DNI
C108 10n
511L
n4.2
911R K1
n9.3
9701C
L1021
12n
L12033p
VDD_RX
C177
8.2n
C109
100p
67
1
C
n
7
.
4
C182
3.9n
211L
n01
9
71
C
p7.2
ANT100
1
p7
.
2
17
1
C
741C u1.0
C106 10n
921L
n7.2
C198
0.75p
C1091
56p
2.2K
R107
621C u1.0
u01431C
VREG_MSME_1.8V
C112 33p
C105 100p
C180
1p
961C
u
1.0
n1321C
C1005 DNI
C104 100p
691C
IND
100p
C184
421C u1.0
n01
411L
p2.2
6101C
L1035
1.5n
L1010
DNI
0.75p
L1014
C1092
22p
02
1
C
p001
ANT105
1
3001C
IND
51
1
C
IND
101R
IND
L102
100p
DNI
C1013
L128
4.7n
L110 100p
L1008
DNI
1401C
n8.1
DNI
L1003
12KR108
3201C
p3.3p3.3
5201C
33pC136
U104
3
2
5
4
1
NI_FR
FIL_OUT
VDD
S_D
GND
12
R125
DNI
C191
L125
DNI
p001071C
100p
C167
L119
1.8n
2n
L118
L123
1.8n
DNI
C173
L111
6.8n
C193
0.1u18p
C192
C139
100p
39p
C1024
VDD_RX
6.8p
C204
FL103
1575.42 MHz
52
41
3
G3
IN OUT
G1 G2
031
211R
47
R113
031
411R
VBAT
C121
DNI
75
R116
18n
L1005
5.6n
C1040
5.6n
C1036
2140MHz
FL101
52
4
31
IN OUT
_OUT
G1 G3
C202
0.5p
DNI
C203
C116
DNI
C188
680p
1
9
511R
061C u1.0
C1008 DNI
VBAT
100p
C185
C175
330p
VBAT
R122
51
C166
22p
33p
C194
9.94
621R
100p
C201
100p
C200
VREG_RF_2.7V
L130
100p
L126
100n
19
7
11
R
DNI
C1081
16
1
C
u
7.
4
451C u1.0
u7.4841C
941C u1.0
151C u1.0 051C u7.4 251C u1.0
551C u1.0
651C u1.0 751C u1.0 851C u1.0
331C u1.0
951C u1.0
1nC113
921C u1.0
821C u1.0
C168
0.1u
721C u1.0
U100
31N
01K 9K
8K 7K
6K 5K 4K 01J
9J 8J 7J 6J
5J 4J 01H
9H
8H
7H 6H 5H
4H 01G 9G 8G
7G 6G 5G 4G
01F
9F 8F
7F 6F 5F
4F
01E
9E 8E 7E 6E 5E
4E
0
1
D
9D
8D
7D 6D 5D 4D
N7
4N
1N
21M 11M
01M
M9
4M 21K
21H
21G
21F
2E
2C
11B
8B
7B 2B
31A
1A
5M
8M 8N
31M 21N
N6
N3
M6
L12
G2L13
F13K13
F2A2
B10A12
B6G13
B1
A6D12
A5E12
H2D13
H1E13
F1
D2B12
D1C12
A11
B13
A3C13
N2J13
J12
M2
M1H13
L2
L1N11
N10
K1
K2N9
J2
J1A7
A8
G1A9
N5
E1B9
A10
B4
B3M3
B5C1
A4M7
RF_ON
TX_IP
TCXO
TX_IN
SBDT TX_QP
TX_QN
LB_RF_OUT1
LB_RF_OUT2 VTUNE1
VTUNE2
HB_RF_OUT1
VTUNE_GPS
HB_RF_OUT2
HB_RF_OUT3 PRX_QP
PRX_QN
WPRXLBP PRX_IP
PRX_IN
WPRXHBP
WPRXHBM
DRX_QP
DRX_QN
WDRXLB
DRX_IP
DRX_IN
WDRXHB1
WDRXHB2
NC
GCELL_INP
DAC_IREF
GCELL_INN
VDDA1_1
EGSM_INP
VDDA1_2
EGSM_INN
VDDA1_3
VDDA1_4
DCS_INP
VDDA1_5
DCS_INN VDDA1_6
GPCS_INP
VDDA2_1
GPCS_INN
VDDA2_2
VDDA2_3
GPS_IN VDDA2_4
PDET_IN
VDDA2_5
TX_RBIAS
VDDA2_6
WPRXSE1 VDDA2_7
WPRXSE2 VDDA2_8
VDDA2_9
VDDA2_10
VDDA2_11
VDDA2_12
TUO_2ESXRPW TUO_1ESXRPW
PNI_XM_BW
MNI_XM_BW
MSM_DDV
1DNG 2
D
NG
3DNG 4DNG 5DNG
6DNG 7DNG 8DNG 9DNG 01DNG
11DNG 21DNG
7_1ADDV
WPRXLBM
31DNG 41DNG
51DNG 61DNG
8_1ADDV
VDDA2_13
82DNG 81DNG 04DNG
54DNG 12DNG 55DNG
16DNG 71DNG 03DNG 91DNG 44DNG
84DNG 95DNG 32DNG
62DNG 23DNG 93DNG 64DNG 25DNG
45DNG 26DNG
42DNG 13DNG 83DNG
34DNG 94DNG
22DNG
06DNG 72DNG 53DNG 14DNG 02DNG
15DNG
75DNG
46DNG
92DNG 43DNG 73DNG 24DNG 05DNG
65DNG 56DNG
52DNG
33DNG 63DNG
74DNG
35DNG
85DNG 36DNG
66DNG
TCXO_RTR_19.2MHZ
GSM_PA_RAMP
TX_ON
GND
VREG_RF_2.7V
DAC_REF
TX_I_P
TX_I_M
TX_Q_P
TX_Q_M
RX0_I_P
RX0_I_M
RX0_Q_M
RX0_Q_P
RX1_I_P
RX1_I_M
RX1_Q_M
RX1_Q_P
GPS_MODE
RTR6285_SSBI
VREG_SMPS_2.1V|VSNS_RF_SMPS
PA_ON0
ANT_SEL2
PA_R0
PA_R0
ANT_SEL1
GSM_TX
GSM_TX
RX_WCDMA_HB
RX_WCDMA_HB
VREG_RF_2.7V_RTR
VREG_RF_2.7V_RTR
RX_GSM_850_M
RX_GSM_850_M
RX_GSM_850_P
RX_GSM_850_P
RX_GSM_900_M
RX_GSM_900_M
RX_GSM_900_P
RX_GSM_900_P
RX_DCS_M
RX_DCS_M
RX_DCS_P
RX_DCS_P
RX_PCS_M
RX_PCS_M
RX_PCS_P
RX_PCS_P
DCS_PCS_TX
DCS_PCS_TX
WB2100_MIX_INM
MNI_XIM_0012BW
WB2100_MIX_INP
PNI_XIM_0012BW
RX_WCDMA_1900_LNA_OUT
RX_WCDMA_1900_LNA_OUT
RX_WCDMA_2100_LNA_OUT
RX_WCDMA_2100_LNA_OUT
PDET_IN
PDET_IN
GPS_IN
GPS_IN
ANT_SEL3
RX_WCDMA_900_P
RX_WCDMA_900_P
RX_WCDMA_900_M
RX_WCDMA_900_M
WCDMA_850_900_TX_OUT
WCDMA_850_900_TX_OUT
WCDMA_1900_2100_TX_OUT
WCDMA_1900_2100_TX_OUT
WCDMA_2100_RTX
WCDMA_2100_RTX
WCDMA_900_RTX
WCDMA_900_RTX
ANT_SEL0
PA_ON1
8dB
GSM(925-960 MHz)
Close to pin1
Murata
EAM62492501
2mm
11dB
DCS(1805-1880 MHz)
PCS(1930-1990 MHz)
GSM(869-894 MHz)
7dB
8061
PCS(1850-1910 MHz)
DCS(1710-1785 MHz)
GSM850(824-849MHz)
GSM900(880-915MHz)
Band I
Band VIII
Near To RTR
0603
+2.7V
1%
8061
W2100 RX(2110 - 2170 MHz)
Near To LNA
LNA for the GPS
WCDMA DUAL
WCDMA RX 2100 LNA Circuit
7. CIRCUIT DIAGRAM