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7. SGH-E700 Flow Chart of Troubleshooting
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7-
1
1. Power On
Check the Battery Voltage
is more than 3.4V
' Power On ' does not work
Change the Battery
END
No
Yes
C414(V_ISUP) = 2.7V?
Check the PMU related to V_ISUP
No
Yes
Check the Clock at
R401=32KHZ
Resolder OSC400
No
Yes
C431 (VDD1) = "H"?
Check the VDD1 circuit
No
Yes
C430(VDD2) & C429(VDD3)
= 2.8V?
Check the VDD2,VDD3 circuit
No
Yes
Check for the clock at C133
= 13MHz
Check the clock generation circuit
(related to OSC101)
No
Yes
Check the initial operation
Yes
Yes
