4. TROUBLE SHOOTING
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4. TROUBLE SHOOTING
4.4 SIM card Trouble
4 4 1 Main Board
TP3
4.4.1 Main Board
TP1
TP4
TP2
0.1u
C339
R350
0
60
3
R
K1
TP302
TP303
DNI
R351
100p
C340
33p
C341
33p
C342
4.7K
R348
SIM_PWR
S300
ENSY0023001
SCGC1B0100
1
2
3
4
5
6
7
8
G5 G3 G1 COMMON
G6 G4 G2
SW
DNI
C350
VDD_3.3
0
R308
SIM_PWR
R307
0
DNI
C349
NP_USIM_DET/
LTE_USIM_DET/
SIM_RST/
SIM_CLK
SIM_DATA
TP1
TP318
DNI
R314
TP317
TP308
DNI
C355
DNI
C354
TP314
DNI
C353
VDD_2.6_LT
VDD_3.3
TP310
TP309
TP313
TP312
4.7K
R363
100n
C352
100n
C351
IC303
6
7
5
8
4
9
3
10
2
11
1
21
N
E
VL
VCC
I_OVL1
I_OVCC1
I_OVL2
I_OVCC2
I_OVL3
I_OVCC3
I_OVL4
I_OVCC4
D
N
G
TP304
TP305
SIM_PWR
TP306
TP307
TP315
CN300
ENZY0030701
24-6407-052-001-888
54
53
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
52
51
TP320
TP321
TP322
IC301
6
7
5
8
4
9
3
10
2
11
1
21
N
E
VL
VCC
I_OVL1
I_OVCC1
I_OVL2
I_OVCC2
I_OVL3
I_OVCC3
I_OVL4
I_OVCC4
D
N
G
100n
C314
100n
C315
4.7K
R303
DNI
C313
DNI
C312
VDD_2.6_LT
VDD_3.3
PERST/
W_DISABLE/
MODE3
MODE2
MODE1
LT_USIM_DET/
LT_USIM_DET/
LTE_USIM_DET/
SIM_RST/
SIM_CLK
SIM_DATA
TP3
TP4
TP2