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9. Flow Chart of Troubleshooting
9-1. Power On
' Power On ' does not work
Check the current consumption
more than 100mA
Check the VBAT
more than 3.3V
C301(VBAT) = 3.0V?
Check the MEM_1.8V of U304
is more than 1.8V
Check U304
3.0V_DIG = 3.0V
3.0V_ANLG = 3.0V
1.2V_ANLG = 1.2V
Check CLK32K
Freq = 32KHz
Check the initial operation
END
SAMSUNG Proprietary-Contents may change without notice
Yes
Yes
Yes
Yes
1.8V
Yes
Yes
Yes
Yes
This Document can not be used without Samsung's authorization
No
Download again
No
Check the Battery
No
Check the related circuit
①
No
Check the
U304
②
No
Check the
U304
and
③
No
Check the clock
32KHz_DIGIT
9-1
and
L301
C328, C329, C347
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