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Flow Chart of Troubleshooting
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7-5
SIM
4 4
5
5
66
7
G
8
G
G
9
10
G
PC-D6-A3-H3.0-
S
U311
1 1
2
2
3 3
10pF
C337
U310
R1180Q301B
1
CE
2
GND
4
VDD
VOUT
3
R331
10K
1
2
3
4
5
ESDALC6V1W5
ZD307
100nF
C336
3D
1G
2S
Q300
SI1305DL
10K
R354
2.2UF
C352
VBATT
4.7UF
C351
C341
27PF
USIM_VCC_EN
PS_HOLD
USIM_RESET
USIM_CLK
USIM_DATA