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9-3. Charging Part
Abnormal charging part
Check the U402 pin 38
U402 pin 34(AUX_ON)
Check the U402 pin 46
Yes
> 4.9V
Yes
= "L"?
Yes
≒ 1.4V
Yes
END
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Check the circuit related to
No
Check the circuit related to
No
No
Resolder or replace U401
9-5
Flow Chart of Troubleshooting
V_EXT_CHARGE
AUX_ON signal
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