LG F3000 - Page 54

4. TROUBLESHOOTING
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(2) Checking FEM & Mobile SW
SW500
KMS-506
ANT
G1 G2
RF
27p
C505
ANT
13
GND1
1
GND2
3
GND3
5
GND4
7
14
GND5
15
GND6
GND7
16
8
GSM18001900_TX
4
GSM1800_RX
6
GSM1900_RX
2
GSM900_RX
10
GSM900_TX
VC1
11
VC2
9
12
VC3
FL610
LMSP54LA-445TEMP
C504
27p
C503
27p
1000p
C502
ANT_SW3
ANT_SW2
ANT_SW1
FEM Control GSM& DCS
Graph 4-3(a)
FEM Control PCS
Graph 4-3(b)
TEST POINT
CIRCUIT Waveform