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Flow Chart of Troubleshooting
9-19
TX MODULE(FEM+PAM)
C152
R105
L103
L105
C119
RFS100
A
2
C
1
3
G
G
4
C120
L112
C151
G
GSM850_OUT
8
GSM850_OUT
9
GSM900_OUT
6
GSM900_OUT
7
IN 1
F101
G
2
3
G
4
G
5
G
1
0
ZD102
ZD101
L113
L104
L
1
0
8
C118
L
1
1
0
C117
L119
L117
ZD103
L109
ANT100
1
1
2
2
3
3
L102
ANT101
1
1
2
2
3
3
R107
L
1
2
0
L
1
1
5
ZD100
C112
C122
VRAMP
7
L106
N
C
1
6
19
NC
2
R
F
IN
_
H
B
4
R
F
IN
_
L
B
RX0
18
RX1
17
8
TX_EN
VBATT
11
GND
3
GND
5
6
GND
13
GND
G
N
D
2
0
GPCTRL0
9
10
GPCTRL1
NC
12
PAM100
A
N
T
1
5
GND
1
GND
21
22
GND
GND
23
24
GND
G
N
D
1
4
L118
R106
L114
L122
3
G
G
4
G
5
G
1
0
1
UNBAL
L107
F100
9 BAL1
BAL1
8
7 BAL2
BAL2
6
G
2
L
1
1
6
C111
L
1
2
1
C113
L111
GSM900RX_B
GSM900RX_A
GSM850RX_B
GSM850RX_A
DCSRX_A
DCSRX_B
PCSRX_A
PCSRX_B
VBAT
TX_EN
PA_HB
PA_LB
AUXDAC
VC1
VC2
C111
C112
C113
C117
C118
C119
C120
C122
C
1
5
1
C
1
5
2
C232
C343
F100
F101
L
1
0
3
L
1
0
4
L
1
0
5
L
1
0
6
L
1
0
7
L108
L109
L110
L
1
1
1
L
1
1
2
L
1
1
3
L114
L
1
1
5
L
1
1
6
L
1
1
7
L
1
1
8
L119
L
1
2
0
L
1
2
1
L
1
2
2
PAM100
R105
R106
R107
R218
R306
R307
R308
R
F
S
1
0
0
ZD100
ZD101
ZD102
ZD103