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Flow Chart of Troubleshooting
7-
28
PC
S R
x
EG
SM R
x
2V7
4V
DUAL_
T
XVCO
2V7
2V7
4V
2V7
DCS
Rx
2V7
C
109
C
110
C
111
R
111
R
105
R
112
C
101
R
110
R
101
C
116
C
132
C
108
L100
L101
RF
VC
OV
CC
23
RX
ON
SY
NO
N
24
SY
NV
CC
22
TX
CP
O
34
TX
CP
VC
C
TX
ON
5
TX
RF
I
1
C
134
14
REFGND
REFI
N
15
16
REFVCC
21
RF
CP
O
20
RFCPVCC
RFGND1
34
RFGND2
37
RF
LO
VC
C
28
RF
TU
NE
26
31
RFVCC
25
GSMI
A
32
33
GSMI
B
6
IA
IB
71
0
IF
VC
C
45
NC1
NC2
46
35
PCSI
A
PCSI
B
36
8
QA
QB
9
39
EN
19
2
EX
TR
ES
29
FE
SW
1
FE
SW
2
30
FESW
ON
40
41 GN
D1
GND2
42
43
GND3
GND4
44
27
GN
DT
UN
E
U100
12
CAFCSUP
18
CLK
CLKFDBX
13
CLKOUT
11
DATA
17
DCSI
A
38
DCSI
B
C
128
R
104
R
107
C
115
R
114
C
104
L103
L102
C135
C
113
C
114
C
121
C
105
SW
1
S
W
2
4
8
VB
1
VB
2
12
10
VC
C
103
GG
7
G
11
9
G
G
14
13
G
OUT
1
5
OUT
2
1
2
O
S
C
100
3
G
6
R102
C
112
C
122
C
102
R
113
R
103
C
100
R
100
C
117
C
125
C
120
C
129
2
GND
OUT
34
VCC
VCON
1
C
126
O
S
C101
C137
C136
R
108
L104
C
107
C
106
C138
C
130
R
109
C
119
C
118
R
106
C
124
C
123
RX_
T
X_
IP
RX_
T
X_
IN
RX_
T
X_
QP
PON_TX
R
115
PCSRX_N
PCSRX_P
FE
SW
1
FE
SW
2
ANT_
E
N
AFC
RX_
T
X_
QN
DCSRX_
N
DCSRX_
P
EGSM
RX_N
MEL_
CLK2
6M
PON_
RX
PON_SYNTH
VCC_SYN
VCC_
CP
D
_R
E
F_13M
RF_
BBI
_DATA
RF_
E
N_
SYNTH
VCC_SYN
VCC_
CP
VCC_
RF_
V
CO
VCC_
RX_
T
X
EGSM
RX_P
VCC_
TX_
BURST
TXVCO_SW
1
DCSTX
EGSM
TX
TXVCO_SW
2
RF_
BBI
_C
LK