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Flow Chart of Troubleshooting
PAC_EN
C108
DCS74137_OUT
BAND_SEL
R105
VPC
C113
GSM74137_OUT
SATDET
R108
R115
R118
1
AFC
VCON
2
GND
C129
TCX100
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VBAT
PAM100
ENA
1
DCS|PCS_IN
2
BS
3
VSUP
4
VBATT
5
VPC
6
GSMIN
7
RSVD
8
R110
C121
R112
C122
C123
C124
VRF_2.9V
R114
C128
R117
4
VCC
OUT 3
C130
C132
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R101
COUP_OUT
16
R102
GND
15
DCS|PCS_OUT
14
GND
13
GSM_OUT
12
GND
11
GND
10
GND
9
GND
17
VRF_2.9V
U103
CLK13M_RF
1
6
NC
VCC
2
5
A
NC
3
4
GND
Y
R123
9-26
TX_FB
R103
R104
DPCS_OUT
C110
L112
GSM_OUT
C111
R121
C131
C135
C136
R124
C140
CLK13M_TR
CLK13M_MC
CLK13M_YMU
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