LG GT540 - SIM Detect Troubleshooting

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4. Trouble Shooting
4.15 SIM Detect Troubleshooting
USIM Initial sequence of GW620 is :
SIM_CLK,SIM_RST,SIM_IO triggered Æ VRUIM_3.0V go to 2.85V Æ SIM IF work
Start
Re-insert the SIM
card
Work well?
TP1 is 3.0V?
TP2(Cloclk) is run?
Change SIM Card
Work well?
Change the Main
board
End
Check J500
End
NO
YES
NO
YES
NO
YES
Re-insert the SIM card
Work well?
Yes
No
TP1 is 3.0V?
TP2(Cloclk)is run?
No
Yes
Work well?
START
END
Check J500
END
Yes
No
Change SIM card
Change the Main board