Flow Chart of Troubleshooting
9-5
9-1-3. Sim Part
"Insert SIM" is displayed on the LCD
Is there any signal pin
#2,3,4 of SIM300?
Check the
UCP301
Check the
UCP201 & UCP301
END
No
Yes
No
Yes
1
2
Check the SIM Card
The voltage is 2.8V
at the pin#1 of SIM300
1
2
NC
8
NC
9
10 NC
1 VCC
VCC
2
VPP
5
SIM300
3 CLK
4 GND
6 I/O
7 NC
C307
C306
C308
C305
C304
SIM_RST
VSIM
SIM_CLK
SIM_IO
Содержание SGH-X510
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