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Flow Chart of Troubleshooting
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7-
29
T
x
(G
S
M
900)
T
x
(DCS
1800/1900)
VC
2
RX
(G
S
M
900)
L
L
Rx(
DCS
1800)
L
T
y
p
ical 3.7V
L
L
L
H
L
T
y
p
ical 3.7V
VC
1
H
L
L
A
n
te
nna S/W C
ont
rol C
ircuit
L
Rx(
P
CS
1900)
VC
3
H
L
L
R
205
R
206
L2
1
5
2
V
CC1
B
6
14
GN
D13
GN
D12
GSM
IN
4
11
GSM
O
U
T
19
RSVD
VAPC
20
VBATT
17
V
CC1
A
18
GN
D
5
21
GND
GND
7
8
GND
GND
9
GND
10
16
GN
D
GN
D
U
200
1
BS
3
DCS
/P
CS
IN
DCS
/P
CS
O
U
T15
ENABLE
L2
1
4
L
212
C
201
L
209
L
205
V
BAT
C
206
C
211
C213
C212
L
202
11
PC
SR
X_1
PC
SR
X_2
10
3
VC
1
VC
2
5
2
VC
3
C
203
DCS
RX
_
1
9
8
DCS
RX
_
2
6
D
|PC
ST
X
EGSM
R
X
_1
13
12
EGSM
R
X
_2
EGSM
_T
X
4
G
71
4
G
U
201
ANT
1
C
218
C
217
L
213
V
BAT
L
210
C
209
C
210
L
203
C
202
C
205
R
210
R209
C214
R208
R207
K
M
S-
512
C
N
201
2
A
C
31
G
4
G
6
6
ANT2
0
1
-
1
1
2
2
3
3
4
4
5
5
1
1
2
2
3
3
4
4
5
5
6
6
2
1
3
-
ANT2
0
0
B1
2
B2
5
C1
6
C2
3
E1
1
E2
4
F
201
PEMD
1
0
Q
200
L
201
L
208
C
204
C
207
R
201
R
204
R
202
VC
1
F
ESW
2
F
ESW
1
EGSM
R
X
_N
EGSM
R
X
_P
DCS
RX
_
N
DCS
RX
_
P
PC
SR
X_N
PC
SR
X_P
ANT
EGSM
T
X
VC
3
ANT
_S
W
2
V
CC_RX
_T
X
VC
2
VC
1
VC
2
VC
3
VC
2
RAMP
T
XVC
O_SW
3
DCS
TX