4. TROUBLE SHOOTING
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Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
R1026
330
330
R1024
R1020
12
L1015
2n
C1107
2p
L1102 5.6n
DNI
C1104
2.2u
C1096
L1016
3.6n
FL1004
1950MHz
5 3 2
4
1
IN
OUT
G1
G2
G3
C1081
2.2u
330p
C1080
680p
C1095
C1090
3.9n
C1088
3.3n
110
R1018
110
R1019
C1089
3.9n
27p
L1023
100p
C1093
C1087
2.7n
C1103
6.8n
C1091
DNI
C1097
680p
VBAT
100p
C1094
C1082
330p
FL1007
7
5
8
4
9
2
3
1
6
ANT
RX1
TX
GND1
GND5
GND2
RX2
GND3
GND4
VBAT
R1017
51
R1022
49.9
2.7p
L1022
C1110
100p
100p
C1109
1950MHz, 2140MHz
FL1002
9
5
8
4
7
2
3
6
1
RX
ANT
TX
GND1
GND4
GND2
GND5
GND3
GND6
DNI
L1021
DNI
C1112
3.9p
C1085
3n
L1020
DNI
C1108
U1003
6
7
4
8
3
5
9
2
10
1
11
PGND
VCC1
VCC2
RFIN
RFOUT
VEN
NC
ISO
VMODE
GND
CPL
U1002
6
7
4
8
3
5
9
2
10
1
11
PGND
VCC1
VCC2
RFIN
RFOUT
VEN
NC
ISO
VMODE
GND
CPL
C1101
100p
C1076
DNI
3.3p
L1031
DNI
C1117
C1111
10p
L1029
3.3p
C1116
0.5p
L103
4
4.7n
5.6n
L1033
PA_ON0
PA_R0
PA_R0
PA_ON1
WCDMA_900_RTX
WCDMA_2100_RTX
WCDMA_1900_2100_TX_OUT
WCDMA_850_900_TX_OUT
RX_WCDMA_900_M
RX_WCDMA_900_P
PDET_IN
RX_WCDMA_HB
W2100 RX(2110 - 2170 MHz)
8dB
Close to pin1
Band I
Band V
Tx SAW filter is deleted.12/01/02
TP3
TP2
TP1