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Flow Chart of Troubleshooting
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9-7
9-4. Sim Part
CN400 pin 1,5 = "H"?
Phone can't access SIM Card
Resolder or replace U402
Check the SIM Card
END
No
Yes
Yes
Yes
No
Check the Clock
After Power ON,
Check SIMCLK Signal on
pin3 of CN400 in a few second
Yes
No
Replace PBA
After SIM card insert,
CN400 pin 2 = "H(SIM_RST)"?
Yes
Summary of Contents for SGH E590 - Cell Phone 70 MB
Page 36: ...8 PCB Diagrams 8 1 Top ...
Page 37: ...PCB Diagrams 8 2 Bottom ...