Sim Part - Samsung X200 - SGH Cell Phone Service Manual

2-1-3. Sim Part

"Insert SIM" is displayed on the LCD
The voltage is 2.8V
at the pin#1 of CN103
Is there any signal
pin #2,3,4 of CN103?
Check the SIM Card
VSIM
SIM_RST
SIM_CLK
C138 C139 C140
Yes
Yes
END
CN103
C141
SGH-X200 Flow Chart of Troubleshooting
No
Check the
No
Check the
SIM_IO
C142
2-5
U107
U107 & U201
1
2
2
1
2