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Flow Chart of Troubleshooting
3-14
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3-1-7. Charging Part
Abnormal charging part
The pin #1 of
U103 is
VEXT
뵃
5V?
Yes
Check
IF302
No
The pin #4 of
U103 is
"LOW"?
Yes
Check
UCP201
Check
U108
Charging Current
is 350mA~650mA?
Yes
END
Check The Battery
①
②
③
No
No