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5. SGH-V206 Flow Chart of Troubleshooting
5-
1
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1. Power On
Current consumption
>=100mA
' Power On ' does not work
Voltage >= 3.3V
Download again
Charge the Battery
pin#15 >= 2.8V
Check U100 and C113
pin#46 and pin#39 =
2.8V
Check U100 and C112
Check the clock signal
at pin4 of OSC801
Freq = 13MHz ,
Vrms ≥ 300mV and
Vpp
ㆃ
900mVpp
Check the clock generation circuit
(related to OSC801, U901 pin 19)
END
No
Yes
Yes
Yes
Yes
Yes
No
No
No
No
pin#13 = 1.8V
No
Yes
Check the V bat. Voltage
Check the pin of U100
Check the initial operation
Check the current consumption