LG -E410 Service Manual page 49

W1900_W2100_RTX
L1020
L1021
1.8n
1.2p
WCDMA DUAL
TP2
FL1007
6
W850_W900_RTX
ANT
C1112
0.5p L1033
2
5.6n
GND1
4
GND2
5
GND3
Band VIII
VDD_RX
RX_WCDMA_2100_LNA_OUT
RX_WCDMA_1900_LNA_OUT
LGE Internal Use Only
L1015
4.7p
C1076 L1016
1n 0.5p
FL1006
6 1
ANT RX
L1022
3
TX
3.3p
2 9
C1089
GND1 GND6
4 8 C1091
10n
GND2 GND5
5 7 DNI
GND3 GND4
Band I
PDET_IN
TP3
R1018
110
VBAT
RX_WCDMA_900_P
c1104
C1103
8.2n
DNI
RX_WCDMA_900_M
1
RX1
8
RX2
3
TX
9
C1117
GND5 C1116
7
1.2p
GND4
DNI
Bias
WCDMA RX 2100 LNA Circuit
L1017
1.2n
C1136
0
C1086
DNI
C1137
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
1 2
C1095
2 C1096 C1097
680p
2.2u 680p
1
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
2
Close to pin1
330p
FL1004
1
C1132
C1131 1 4
IN OUT
G1 G2 G3
1.8n
3G_PAM_MODE 33
2 3 5
PA_R0
PA_ON0
C1093 C1094
100p 100p
ATTEN -> DNI
R1020
12
C1134 FL1008
C1135
100p
100p
1 4
IN OUT
G1 G2 G3
3G_PAM_MODE
2 3 5
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
W1900_W2100_TX_OUT
C1133
DNI
W850_W900_TX_OUT
C1108
DNI