LG lg-d821 - Page 75

3. TROUBLE SHOOTING
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Only for training and service purposes
LGE Internal Use Only
C1114 100p
EAG63293301
20549-001E
SW1003
43
2
1
ANT
COMMON
G3 G4
22pC1071
W_FL2-R-SMT-1_80
SW1002
EAG63412001
G1
G2
ANTG3
ECA30240001
FL1014
LDJ18829M24AD011
IN
1
Termination_Port
4
GND1
2
GND2
5
OUT
3
Coupling
6
L1048
100n
R1011
49.9
DNI
L1073
L1074
DNI
TRX_ANT2
CPL_CPL
13.04.25 changed
TP1
C1052 1.8n
L1038 3.3n
C1125 10p
10pC1124
100p
C1063
3.3nC1123
DNIL1045
C1065 1n
8.2n
L1081
C1056 33p
C1061 33p
100p
C1121
EAM62493001
FL1020
XM0831SZ
3
9
7
5 6
1
4
10
8
2
GND1
PORT1-
PORT3-
PORT2-
PORT3+
CTLPORT2+
PORT1+
VDD
GND2
+2V95_VREG_L16
EAM62791401
FL1012
ACMD-4104-TR1
75
94
2
8
1
36
ANT
TX
RX1
RX2
GND1
GND2 GND5
GND3 GND4
C1122 3.3n
22n L1084
6.8n
L1039
EAM62930901B8575
FL1007
95
7
3
1
2
8
4
6
ANT
GND2
RX_OUT2
GND1
RX_OUT1
TX_IN
GND4
GND3 GND5
PRX_MB3_IN_P
PRX_MB3_IN_N
TX_PA_OUT_B4
TRX_B4
TRX_B1
PRX_B1_B4_SEL
TX_PA_OUT_B1
L
H
H
H
VDD VCTL
PRX_B4(P2)
PRX_B1(P3)
Path
B4
B1
TP2
TP3
TP4
L1054
DNI
LMSP32QP-F03
EAT61793601
FL1018
23
11
10
8
9
6
7
5
134 12
2 15
14
20
17
21
16
22
19
3
18
1
TRX2
VDD
TRX10
VIO
TRX3
TRX4
SCLK
GND5
SDATA
TRX6 TRX5TRX1
GND4
GND1 TRX7 TRX9
GND2
TRX8
TX1LB
TX2HB
GND3
ANT
GND6
C1081100p
+1V8_VREG_S3A_RF
100p C1080
+2V95_VREG_L16
33pC1079
RFFE2_DATA
RFFE2_CLK
TRX_ANT2
TX_GSM_HB
TRX_B3
TRX_B2_B25
TRX_B7
RX_B41
TRX_B4
TRX_B1
TX_B41
FL1018