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Flow Chart of Troubleshooting
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7-25
SIM_VCC
SIM_CLK
SIM_RST
Backup_Battery
SIM_IO
2.3T SIM
C425
C411
C413
C415
R404
100K
R408
+VDD_IO_LOW
R402
C412
V400
C414
R407
C429
N
E
G
2
P
O
S
1
10V
1000nF
C418
U
4
0
4
C424
C419
C430
C416
C426
C427
510
R409
R403
TP400
C420
C421
C410
C428
C422
C423
L402
C417
NC
9
10
NC
VCC
1
2
RST
VCC
5
5000-6P-2.3M
SIM400
CLK
3
4
GND
IO
6
7
NC
NC
8
OSC400
2
1
44
_
S
IM
R
S
H
C
7
32
V
IN
T
29
V
S
A
V
E
30
_
IR
Q
10
_
O
N
K
E
Y
27
_
R
E
C
1
1
_REC2
13
_
R
S
T
H
C
11
_SIMRSCD
S
IM
C
K
H
C
8
SIMD3VBAT
40
SIMEN
45
SIMIOCD
42
S
IM
IO
H
C
9
SIMVCC
41
V
B
A
T
31
V
C
H
G
28
RF12VBAT
23
22
RF1VDD
RF2VDD
24
S
C
L
2
SCN
38
SCP
37
S
D
A
3
SIMCKCD
43
M
IC
B
IA
S
12
NC 53
54
NC
O
S
C
I
26
O
S
C
O
25
P
W
R
E
N
1
6
P
W
R
E
N
2
5
R
E
F
C
48
GPO2
47
GPO3
46
18
HCVBAT
HCVDD
17
IOD2VBAT
15
14
IOVDD
20
LPD1VBAT
LPVDD
19
D1VDD
21
16
D2VDD
D3VDD
39
GND 49
50
GND
GND 51
52
GND
GPO1
U405
C
H
G
C
U
R
/B
A
T
M
A
X
34
C
H
G
D
R
V
33
C
L
K
3
2
K
4
C
P
V
B
A
T
36
C
P
V
D
D
35
IT_PMU
ONKEYN
AUX_ON
RSTON
SIMRST
+VDD_RX_TX
+VCC_SYN
+VDD_IO_HIGH
BU_RST
32KHz_DIGIT
+VDD_G_A
VDD_SLEEP
VBAT
+AVDD_HFA
+VDD_IO_LOW
+AVDD
MIC_BIAS
REF_ON
PON_TX
SCL
SDA
SIMCLK
SIMIO
1.3M 1/4 LSI Senser(0.9T)
6
6
7
7
8 8
9
9
2
7
G
G
2
8
22
22
23
23
24 24
25 25
26
26
3
3
4 4
5
5
15
15
16 16
17
17
18
18
19
19
2
2
20 20
21
21
CN704
1
1
10
10
11
11
12 12
13
13
14
14
CAM1.5V
R
7
2
1
L
7
0
1
CAM2.8V
CAM2.8V
R
7
2
2
+VDD_IO_HIGH
R
7
3
0
Y(5)
PCLK
Y(7)
Y(6)
Y(0)
Y(2)
M_SCL
MCLK
M_SDA
S_RESET
FVALID
LVALID
FLASH_OUT
Y(1)
Y(3)
Y(4)