4. TROUBLE SHOOTING
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Copyright © 011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
L1037
0.75p
FL1001
SDDY0005101
B7671
9
5
7
3
1
2
8
4
6
ANT
GND2
RX_OUT2
GND1
RX_OUT1
TX_IN
GND4
GND3
GND5
C1073 10p
C1099 1.8n
10p
C1098
L1027
DNI
C1089 DNI
C1064 3.3n
L1038
DNI
C1084
1n
L1035
DNI
FL1006
B7697
9
5
8
4
7
2
3
6
1
RX
ANT
TX
GND1
GND4
GND2
GND5
GND3
GND6
L1036
3.3n
C1085 33p
L1032
3n
L1026
8.2n
C1065
DNI
6.8n
L1019
L1016
DNI
L1017
22n
C1062 1.2p
1.2p
C1067
WCDMA_LB_RTX
WCDMA_HB_RTX
RX_WCDMA_LB_M
RX_WCDMA_LB_P
RX_WCDMA_2100
RX_WCDMA_1900
SDPY0004701
ACMD-7407
BC 2
SDMY0003001
B7697
BC 1
[Duplexer]
BC 5
SDDY0005101
B7671
B7953
SDMY0002801
BC 8
W2100
W850
0603
TP3
BC5 Duplexer
L1037
0.75p
C1076
100n
FL1004
B9425
836.5MHz
5 3 2
4
1
IN
OUT
G1
G2
G3
02
01
R
00
1
12
01
R
00
1
68
R1019
FL1001
SDDY0005101
B7671
9
5
7
3
1
2
8
4
6
ANT
GND2
RX_OUT2
GND1
RX_OUT1
TX_IN
GND4
GND3
GND5
C1097
1.5n
L1033
3.3n
L1034
DNI
C1083
DNI
L1030
DNI
C1073 10p
3G Dual PAM_Band 1+5
U1002
SMPY0021701
SKY77197
61 51
8
7
9
6
10
5
11
4
12
3
13
2
14
1
IN_BAND_V
OUT_BAND_V
VMODE_0
GND3
VMODE_1
VCC2_2
VCC2_1
GND2
VEN_BAND_V
OUT_BAND_I
VEN_BAND_I
GND1
IN_BAND_I
CPL_OUT
1
D
N
G
P
2
D
N
G
P
C1082
3n
C1099 1.8n
C1077
10u
n1
19
01
C
100p
L1029
1950MHz
B9414
FL1005
5 3 2
4
1
IN
OUT
G1
G2
G3
C1080
100p
10p
C1098
L1027
DNI
C1089 DNI
C1094
33p
18p
C1096
C1064 3.3n
82p
C1075
VBAT
n1
29
01
C
n1
39
01
C
n1
09
01
C
L1038
DNI
C1084
1n
L1035
DNI
FL1006
B7697
9
5
8
4
7
2
3
6
1
RX
ANT
TX
GND1
GND4
GND2
GND5
GND3
GND6
L1036
3.3n
C1085 33p
L1032
3n
L1026
8.2n
C1065
DNI
6.8n
L1019
L1016
DNI
L1017
22n
C1062 1.2p
1.2p
C1067
PA_ON0
PA_R0
PA_ON1
PA_R1
WCDMA_LB_RTX
WCDMA_HB_RTX
WCDMA_LB_TX_OUT
RX_WCDMA_LB_M
RX_WCDMA_LB_P
WCDMA_HB_TX_OUT
RX_WCDMA_2100
RX_WCDMA_1900
PDET_IN
EAM62131401
[Tx SAW Filter]
BC 8
SFSY0037601
B9442
B9459
BC 2
BC 1
SFSY0035101
B9414
BC 5
SFSY0036501
B9425
BC1/8 SKY77195 SMPY0020001
SMPY0021701
SKY77197
BC1/5
[Dual PA]
SDPY0004701
ACMD-7407
BC 2
SDMY0003001
B7697
BC 1
[Duplexer]
BC 5
SDDY0005101
B7671
B7953
SDMY0002801
BC 8
1608
about 9.5 dB
W2100
W850
0603
TP3
BC1 Duplexer
TP2
Dual PAM
TP1
TP1
Tx SAW