LG -E435 Service Manual page 49

WCDMA DUAL
C1085 8.2p
W1900_W2100_RTX
L1021
3.9n
TP2
C1111 33p
W850_W900_RTX
C1112
L1033
DNI 5.6n
VDD_RX
R1015
RX_WCDMA_2100_LNA_OUT
0
R1016
RX_WCDMA_1900_LNA_OUT
DNI
LGE Internal Use Only
L1015 2n
C1076
DNI
FL1006
6 1
ANT RX
L1022 10p
3
TX
L1020
2 9
DNI
GND1 GND6
C1089 C1091
4 8
GND2 GND5
DNI 0.75p
5 7
GND3 GND4
1950MHz,2140MHz
Band I
PDET_IN
TP3
L1029 3.3p
RX_WCDMA_900_P
C1103
C1104
DNI 6.8n
L1031 3.3p
FL1007
6 1
ANT RX1
8
RX2
L1034 3.9p
3
TX
2
GND1
4 9
GND2 GND5
C1117
5 7
C1116
GND3 GND4
27n
8.2n
Band VIII
Bias
WCDMA RX 2100 LNA Circuit
L1017
2n
C1086
8.2n
RX_WCDMA_HB
L1016
3.6n
VBAT
C1081 C1082
U1002
2.2u 330p
11
PGND
10
VCC VBAT
9
RF_OUT RF_IN
8
CPL_IN VMODE1
7
GND VMODE0
6
CPL_OUT VEN
REV_1.1
R1017
51
R1019
R1018
8dB
110 110
VBAT
C1096 C1097
2.2u 680p
U1003
11
PGND
10 1
VCC VBAT
9 2
RF_OUT RF_IN
8 3
CPL_IN VMODE1
7 4
GND VMODE0
6 5
CPL_OUT VEN
RX_WCDMA_900_M
REV_1.1
FL1003
1 3
IN OUT
DNI
4
_OUT C1083
G1 G3
2 5
2140MHz
- 49 - Copyright © 2013 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
C1080
Close to pin1
330p
1950MHz C1087 3.3n
FL1004
1
L1023 4.7n
2 4 1
OUT IN
3 G3 G2 G1
3G_PAM_MODE
4 5 3 2
PA_R0
5
C1090
PA_ON0
0.5p
C1093 C1094
DNI DNI
C1095
680p
897.5MHz
FL1008 L1102 12n
C1101 4.7n
4 1
OUT IN
G3 G2 G1
3G_PAM_MODE
5 3 2
PA_R0
C1107
PA_ON1
DNI
C1109
C1110
DNI DNI
L1018
WB2100_MIX_INP
1.8n
W2100 RX(2110 - 2170 MHz)
L1024
WB2100_MIX_INM
1.8n
TP5
Only for training and service purposes
W1900_W2100_TX_OUT
C1088
DNI
W850_W900_TX_OUT
C1108
DNI