Sim Part - Samsung SGH-C140 Service Manual

3-1-3. Sim Part

"Insert SIM" is displayed on the LCD
The voltage is 2.8V
at the pin#1 of SIM103
Is there any signal pin
#2,3 of SIM103?
Check the SIM Card
VSIM
SIM_RST
SIM_CLK
C103
Yes
Yes
END
R100
C104 C105
No
Check the
No
Check the
SIM103
1 1 6
5 5
2 2
3 3 4
G G G G
10 9 8 7
C106
3-5
Flow Chart of Troubleshooting
UCP101
UCP101 & UCP201
1
2
2
6
4
SIM_IO
C107
1
2