Samsung SGH-Z500 Anycall Service Manual page 41

3. Sim Part
Phone can't access SIM Card
CN701 pin 1 = "H"?
After Power O N,
Check SIM_CLK Signal on
CN401 pin3 in a few second
After SIM card insert,
CN401 pin 2 = "H(SIM_RST)"?
Check the SIM Card
Yes
Yes
Yes
Yes
Yes
END
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No
Check the SIM POWER
No
No
7- 7
F low Chart of Troubleshooting
Check the 32KHz OSC
Replace PBA