LG GD910 - Page 92

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5. Trouble shooting
Rx path circuit diagram
UMTS3
VC1
3
VC2
4
VC3
5 6
VC4
7
VDD
GND2
8
GND3
23
GND4
24
GND5
GSM1800_1900TX
9
GSM1800_RX1
16
17
GSM1800_RX2
GSM1900_RX1
18
19
GSM1900_RX2
11
GSM850_900TX
GSM850_RX1
12
13
GSM850_RX2
14
GSM900_RX1
15
GSM900_RX2
UMTS1
20
UMTS2
21
22
LMSP43QL-771
FL400
ANT
2
GND1
1
10
5.1nH
L403
C431 2.2p
1.5p
C437
2.2pC425
C432 2.2p
C408 2.2p
C441 1.5p
2.2pC436
18nH
L402
C423 2.2p
L401
18nH
L404
5.1nH
TP1
TP2
TP3
TP4