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Level 3 Repair
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8-5
8-3-5. Charging Part
TA / USB Insert
Yes
END
Charging Sequence Start
V_BUS_5V = 5V
No
Check C562 = 5V,
or may not connected TA / USB
Yes
Check the CHG_IN_5V(C553)=5V
No
Resolder and Replace U502
Yes
Battery is Charging?
No
Resolder or Replace U505
Yes