Charging Part - Samsung SGH-E790 Service Manual

Flow Chart of Troubleshooting

3-1-7. Charging Part

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