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