4. TROUBLE SHOOTING
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Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
ANT1002
MBV62422401
FEED
C1127
100p
ANT100
1
MBV62422401
FEED
4
3
2
1
4
3
2
1
L1001
15n
100p
C1128
100p
C1046
C1005
100n
DNI
C1123
C1010DNI
C1126
DNI
DNI
C100
7
C1047
39p
8.2n
L1009
U1001
16
15
14
13
12
11
10
17
9
8
7
6
4
3
28
1
44
43
42
41
40
39
38
37
36
35
32
33
34
24
23
22
29
30
31
18
21
25
20
26
19
27
5
2
GND2
GND5
GND13
TRX1
AN
T
TRX2
GND12
TRX3
VRAMP
PGND3
PGND2
PGND1
GND10
TRX4
GND11
PGND6
PGND5
PGND4
PGND7 PGND8 PGND9
PGND10
PGND11
PGND12
PGND13
PGND14
PGND15
PGND16
GND1
GND14
GND3
GND4
GND6
GND7
GND8
TX_HB_IN
TXEN
TX_LB_IN BS2 BS1 VBAT
T
VC
C
GND9
MODE
R1002
2.2K
L1004
4.7n
1.2n
C1022
SW1000
4
3
2
1
ANT
COMMON
G3
G4
C1002 6.8p
100p
C1001
C1003
0.5p
L1037
27n
W850_W900_RTX
W1900_W2100_RTX
REV_1.1
TP1
TP2
TP3
TP4
C1109
DNI
C1104
DNI
C1096
2.2u
1950MHz
FL1004
5 3 2
4
1
IN
OUT
G1
G2
G3
2.2u
C1081
C1080
330p
C1095
680p
C1090
0.5p
DNI
C1088
R1018
110
R1019
110
C1110
DNI
C1087 3.3n
680p
C1097
VBAT
330p
C1082
VBAT
FL1008
897.5MHz
5 3 2
4
1
IN
OUT
G1
G2
G3
49.
9
R1022
3.9n
L1021
C1112
DNI
C1108
DNI
4.7n
C1101
FL1007
7
5
8
4
9
2
3
1
6
ANT
RX1
TX
GND1
GND5
GND2
RX2
GND3
GND4
DNI
C1076
L1031 3.3p
3.3p
L1029
L1033
5.6n
0.75p
C1091
L1015 2n
L1016
3.6n
DNI
C1107
L1102 12n
FL1006
1950MHz,2140MHz
7
5
8
4
9
2
3
1
6
ANT
RX
TX
GND1
GND6
GND2
GND5
GND3
GND4
8.2p
C1085
C1089
DNI
L1022 10p
33p
C1111
6.8n
C1103
C1116
8.2n
L1034 3.9p
27n
C1117
L1020
DNI
U1002
6
4
8
3
7
10
1
2
9
5
11
PGND
VEN
RF_OUT
RF_IN
VBAT
VCC
GND
VMODE1
CPL_IN
VMODE0
CPL_OUT
U1003
6
4
8
3
7
10
1
2
9
5
11
PGND
VEN
RF_OUT
RF_IN
VBAT
VCC
GND
VMODE1
CPL_IN
VMODE0
CPL_OUT
L1023
4.7n
C1093
DNI
C1094
DNI
R1017
51
PA_ON0
PA_R0
PA_R0
PA_ON1
3G_PAM_MODE
3G_PAM_MODE
W850_W900_RTX
W1900_W2100_RTX
W1900_W2100_TX_OUT
W850_W900_TX_OUT
RX_WCDMA_900_M
RX_WCDMA_900_P
PDET_IN
RX_WCDMA_HB
8dB
Close to pin1
Band I
Band VIII
WCDMA DUAL
REV_1.1
REV_1.1