Sim Part - Samsung SGH-X650 Service Manual

Gsm telephone
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Flow Chart of Troubleshooting

7-4. Sim Part

Phone can't access SIM Card
CN500 pin 1,5 = "H"?
After Power ON,
Check SIMCLK Signal on
CN500 pin3 in a few second
After SIM card insert,
CN500 pin 2 = "H(SIM_RST)"?
Check the SIM Card
Yes
Yes
Yes
Yes
Yes
END
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
No
Check the sim charge pump
No
No
7-8
Check the 32k OSC
Replace PBA

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