SAMSUNG Proprietary-Contents may change without notice
Level 3 Repair
8-13
This Document can not be used without Samsung's authorization
8-3-4. Sim Part
Check the
SIM300 pin 1(C325)
】
2.85V
Phone can't access SIM Card
Resolder the UCP200 using heatgun.
Check the SIM Card is demaged.
END
No
Yes
Yes
Yes
No
Resolder or Replace SIM300 connector.
(Because of not soldering well)
After Power ON,
Check the SIM_CLK signal is on.
(TP : C303)
(method : wire the pin 3(C303)
and check its waveform using an
oscilloscope)
Yes
No
Change the PBA.
After SIM card insert,
Check the SIM300
pin2(R333,C304: SIM_RST)
】
2.85V?
(method : wire the pin 2 and
check its waveform using an
oscilloscope)
Yes