9. Flow Chart of Troubleshooting
9-1
9-
1. Baseband
9-1-1. Power ON
check the current
consumption
>= 100mA
Download again
'Power ON' does not work
No
Yes
Yes
END
Yes
Check the Initial Operation
Yes
Charge the battery
No
Check the Voltage
of the Battery
>= 3.3V
Check"Power On"Key
No
Check the pin
C152,C153,C155
of
UCP107 is >= 2.8V
>=2.8V
Check "Power
On"
key?
No
check
UCD107
and
C153
Yes
1
Check the clock signal
at pin #3 of OSC101
Freq=26Mhz
Vrms >=300mV
No
Check the clock generation
circuit OSC101
Yes
2
3
Содержание SGH-C266
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