LG -E415g Service Manual page 49

W1900_W2100_RTX
L1020
L1021
1.8n
1.2p
WCDMA DUAL
TP2
FL1007
C1111 33p
6
W850_W900_RTX
ANT
C1112
L1033
DNI
2
8.2n
GND1
4
GND2
5
GND3
Band V
VDD_RX
RX_WCDMA_2100_LNA_OUT
C1137
RX_WCDMA_1900_LNA_OUT
LGE Internal Use Only
L1015 2.4n
L1016
C1076
1.8p 12n
FL1006
6 1
ANT RX
L1022
3
TX
3.3p
2 9
GND1 GND6
C1089
4 8 C1091
GND2 GND5
10n
5 7 DNI
GND3 GND4
Band I
PDET_IN
R1018
TP3
110
VBAT
L1029 10n
RX_WCDMA_900_P
C1103
C1104
DNI
12n L1031 10n
RX_WCDMA_900_M
1
RX1
8
RX2
3
TX
9
C1116 C1117
GND5
7
GND4
2.7p DNI
Bias
WCDMA RX 2100 LNA Circuit
L1017
1.2n
C1136
0
C1086
DNI
DNI
RX_WCDMA_HB
VBAT
C1081 C1082
U1002
2.2u 330p
11
PGND
10 1
VCC2 VCC1
9 2
RFOUT RFIN
8 3
CPL_IN VMODE_1
7 4
GND VMODE_0
6 5
CPL_OUT VEN
R1017
51
R1019
8dB
110
C1096 C1097
2.2u 680p
U1003
11
PGND
10 1
VCC2 VCC1
9 2
RFOUT RFIN
8 3
CPL_IN VMODE_1
7 4
GND VMODE_0
6 5
CPL_OUT VEN
C1109
100p
FL1003
1 3
IN OUT
4
_OUT
G1 G3
2 5
2140MHz
- 49 - Copyright © 2013 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
C1080
Close to pin1
330p
FL1004
C1131 1.2n
1 4
IN OUT
G1 G2 G3
3G_PAM_MODE
2 3 5
PA_R0
R1027
PA_ON0
100
C1090
DNI
C1093 C1094
100p 100p
C1095
680p
R1020
DNI
C1134
FL1008 C1135
100p
100p
4 1
OUT IN
G3 G2 G1
3G_PAM_MODE
5 3 2
PA_R0
C1107
PA_ON1
DNI
C1110
100p
WB2100_MIX_INP
W2100 RX(2110 - 2170 MHz)
DNI
C1083
WB2100_MIX_INM
TP5
Only for training and service purposes
C1132
W1900_W2100_TX_OUT
10
C1133
DNI
W850_W900_TX_OUT
C1108
DNI