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Flow Chart of Troubleshooting
9-28
DCS_RX
EGSM_RX
L107
C126
C127
R105
L104
C125
50
C128
C122
L108
TA100
1 IN1
IN2
4
OUT1 8
9
OUT1
OUT2 6
7
OUT2
F101
SFR942PY002
G
2
3
G
5
G
G
1
0
R
1
2
2
R
1
2
1
R104
11
NC
14
NC
12
RX1
13
RX2
4
TX_EN
V
B
A
T
T
3
0
2
VLOGIC
VRAMP
3
G
8
G
9
1
0
G
G
1
5
1
6
G
1
8
G
G
1
9
GSM_IN
27
G
2
8
G
3
1
3
2
G
G
7
3
3
G
3
4
G
G
3
5
3
6
G
1
G
2
0
G
G
2
1
2
2
G
2
3
G
2
4
G
G
2
5
2
6
G
SKY77534-11
1
7
A
N
T
BS1
5
BS2
6
29
DCS|PCS_IN
PAM100
DCS_TX
EGSM_TX
RX_SEL
PON_PA
RAMP
BAND_SEL
MOD_STANDBY
VBAT
DCSRX_N
DCSRX_P
EGSMRX_N
EGSMRX_P
4
OSC201
3
UART1_RD
W5
UART1_RTS
W6
ICHGN
W8
ICHGP
W9
UART1_CTS
V7
UART1_TD
V5
PWM_OUT1
PWM_OUT2
T6
UART0_RD
L18
XTAL_32K_ 1
L19
UART0_TD
K18
RFIL_N
G1
RFIL_P
F1
RFID_N
E1
RFID_P
D1
RFIP_N
C1
RFIP_P
B1
RFOL
A2
XTAL_26M_2
A6
XTAL_26M_1
A7
RFOH
A1
3
OSC200
2
UART1_CTS
UART1_RD
UART1_RTS
ICHGN
ICHGP
UART1_TD
DCSRX_N
EGSMRX_P
EGSMRX_N
UART0_RD
UART0_TD
DCS_TX
EGSM_TX
DCSRX_P
C
1
0
6
C
1
2
2
C
1
2
5
C
1
2
6
C
1
2
7
C
1
2
8
C
1
2
9
C
1
3
2
C
1
4
0
C
1
4
1
C
1
5
4
C
1
5
6
C201
C207
C209
C210
C211
C
22
7
C
2
28
C
23
2
F101
L101
L1
04
L107
L108
L201
L202
O
S
C
2
0
0
P
A
M
1
0
0
R
1
04
R
1
05
R121
R122
R
20
1
R208
R
20
9
R
21
0
R218
R
22
0
T
A
1
0
0
T
A
10
1
TH200
T
P
_
G
N
D
T
P
_
T
C
K
TP
_T
DI
T
P
_
T
D
O
T
P
_
T
M
S
T
P
_
T
R
S
T
_N
T
P
_
W
E
n
TP
21
4
U
C
P
2
0
0
Z
D
3
0
1