LG -E400f Service Manual page 49

FL1008
6
ANT
WCDMA_2100_RTX
L1035 L1031
2
1.5n DNI GND1
4
GND2
5
GND3
1950MHz,2140MHz
Band I
FL2
6
ANT RX1
WCDMA_850_RTX
RX2
C1081
L1021
TX
15n
DNI
2
GND1
4
GND2 GND5
5
GND3 GND4
Band V
LGE Internal Use Only
1
RX
3
TX
9
GND6
8
GND5
7
GND4
RX_WCDMA_HB
C144 DNI
3.3p
L116
PDET_IN
TP3
L112 3.3p
RX_WCDMA_850_P
C138
C137
DNI 6.8n
L114 3.3p
RX_WCDMA_850_M
1
8
L129 3.3n
3
9
C197
7
DNI
VBAT
C174 C175
U102
2.2u 330p
11
PGND
10
VCC2 VCC1
9
RFOUT RFIN
L121 3n 8
ISO VBP
7
GND VMODE
C180
C183 6
CPL VEN
1p
1p
R122
51
R124
R123
8dB
110 110
VBAT
C187 C188
2.2u 680p
U103
11
PGND
10 1
VCC2 VCC1
9 2
RFOUT RFIN
8 3
ISO VBP
7 4
GND VMODE
6 5
CPL VEN
C198
DNI
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4. TROUBLE SHOOTING
TP2
C172
Close to pin1
330p
1950MHz
1 FL102
2 4 1
OUT IN
3 G3 G2 G1
4 5 3 2
PA_R0
5
PA_ON0 3.9n
C182
C184 C185
100p 100p
TP1
C186
680p
DNI
C121
FL104
33p
C194 4 1
OUT IN
GND G3 G2 G1
836.5MHz
5 3 2
PA_R0
22n
PA_ON1
C199
C200 C201
100p 100p
Only for training and service purposes
WCDMA_2100_TX_OUT
3.3n
C181
WCDMA_850_TX_OUT
C196
15n