Samsung GT-S5230 - Charging Part

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Flow Chart of Troubleshooting
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9-5
9-3.
Charging Part
Yes
Resolder or replace U300
Check the circuit related to
AUX_ON signal
Check the circuit related to
V_EXT_CHARGE
Yes
No
Check the U300 pin K11
≒
1.25V
Yes
No
TP304 pin
(
ACC_DET
)
="
L"?
Yes
No
END
Abnormal charging part
Check the U300 pin H11
>5.0V