Service manual

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
C1071
100p
VBAT
L1021
DNI
C1073
6.8n
2101R
001
FL1004
1950MHz
5 2
4 1
3
G3
INOUT
G1G2
9701C
p001
p001
8701C
p001
6701C
L1015
8.2n
100p
C1081
L1016
DNI
U1002
PGND1
15
IN_BAND_VIII
1
OUT_BAND_VIII
14
VMODE_0
2
GND3
13
VMODE_1
3
VCC2_2
12
VCC2_1
4
GND2
11
VEN_BAND_VIII
5
OUT_BAND_I
10
VEN_BAND_I
6
GND1
9
IN_BAND_I
7
CPL_OUT
8
PGND2
16
330p
C1066
1n
C1065
DNI
C1083
L1022
3.3n
1p
C1074
12n
C1072
18pC1064
C1082
2.2n
5.6n
L1020
897.5 MHz
FL1003
5 3 2
4 1
IN
OUT
G1G2G3
7701C
p001
L1023
8.2n
33p
C1080
L1025
0.5p
L1024
DNI
C1084
2.2n
10u
C1067
001
1101R
R1010
62
PA_R0
PA_R1
PDET_IN
PA_ON1
PA_ON0
WCDMA_LB_TX
WCDMA_HB_TX
1mm
Near to 4 Pin Near to 12 Pin
Near to 12 Pin
BAND15:
BAND25:
BAND18:SKY77195
0603
W900/850
W2100/1900
TP3
TP1
TP2