LG E900 Service Manual page 81

4. TROUBLE SHOOTING
C140 1.5n
WCDMA_850_900_RTX
C141
WCDMA_2100_RTX
L137 33p
WCDMA_1700_1900_RTX
VDD_RX
0603
RX_WCDMA_2100_LNA_OUT
LGE Internal Use Only
TP2
FL102 B7953
1
RX1
C138 100p 6 8
ANT RX2
3
TX
L110
2
GND1
27n
4 7
GND2 GND4
5 9
GND3 GND6
SDMY0002801
TP2
FL103 SAYFP1G95AA0B00
33p C142 6.8p 6 1
ANT RX
3
TX
L113
2.2n
2 9
GND1 GND6
4 8
GND2 GND5
5 7
GND3 GND4
SDMY0001901
TP2
FL114 ACMD-7407
C242 1n
6 1
ANT RX
3
TX
C232
DNI
2 9
GND1 GND6
4 8
GND2 GND5
5 7
GND3 GND4
SDPY0004701
Bias
L123
2.2n
C156 1.5p C157 33p
C163
1.5n
WCDMA RX 2100 LNA Circuit
W850 TX(824 - 849 MHz)
W900 TX(880 - 915 MHz)
C139 1.5p C101 100p
RX_WCDMA_850_900_P
L115
L111
DNI 18n
C143 C134 100p
1.5p
RX_WCDMA_850_900_M
TP3
W2100 TX(1920 -1980 MHz)
C105
TP3
C144 33p C145 33p
RX_WCDMA_2100
L112
1.8n
W1900 Tx (1850-1910MHz)
W1900 Rx (1930-1990MHz)
W2100 RX(2110 - 2170 MHz)
TP4
2 3
FL104
G1 O1
1
IN 2140MHz
C166
G2 O2
DNI
5 4
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C148 33p
33p
TP3
L136 2.2n
C234 10p
C230 L140
2.7n
0.5p
C246
100p
L126 33p
WB2100_MIX_INM
C172
DNI
L122 33p
WB2100_MIX_INP
Only for training and service purposes