3. TROUBLE SHOOTING
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Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
+VPWR_RF
R1034
49.9
VPA
C1209
1n
C1010
4.7u
100p
C1113
C1112
100p
1.8p
L1096
DNI
L1051
1.5n
L1098
3.3n
L1097
8.2n
C1147
U1001
EAN62778301
ACPM-9020-TR1
6
7
4
8
3
5
9
2
10
1
11
PGND
VCC1
VCC2
RFIN
RFOUT
VEN
NC
ISO
VMODE
GND
CPL
FL1012
842MHz
5
2
3
4
1
IN
OUT
G2G1
G3
C1109
1n
C1094
4.7u
PA0_R1
PA_ON1_L20
TX_OUT_B20
(R-005845)
QCT REVIEW
12/27
B20_TX
REV_A(04/22)
1_6/27
1.0_06/28
1.0_06/28
TP3
TP4
L1047
8.2n
DNI
L1103
L1094
0.5p
DNI
C1146
FL1010
EAM62672701
B8091
7
5
8
4
9
2
3
1
6
ANT
RX1
TX
GND1
GND5
GND2
RX2
GND3
GND4
C1074 82p
C1206 1n
L1059
12n
L1093 3.9n
C1207 1n
PRX_B20_INM
PRX_B20_INP
REV_A(04/26)
REV_A(04/26)
B20_RX
REV_A(04/22)
TRX_B20
TP2
TP1