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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
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9-5
9-3. Charging Part
Yes
Check the circuit related to
AUX_ON signal
Resolder or replace U400
Check the circuit related to
V_EXT_CHARGE
Yes
No
U400 pin 34 = "L"?
Yes
No
U400 pin 36 = "L"?
Yes
No
Abnormal charging part
Check the C431
>4.9V
Yes
Check the circuit related to
AUX_ON signal
Check the circuit related to
V_EXT_CHARGE
Yes
No
Yes
No
Yes
No
END
Abnormal charging part