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Flow Chart of Troubleshooting
3-7
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3-1-3. Charging
Abnormal charging part
The pin #19,20
of IFC 502
VEXT ≥ 5V?
Replace TA, Check IFC502
NO
The pin #5
of U200 is
"low"?
check the U200,R255
NO
YES
YES
The pin #10 of U200
3.5 ~ 4.2V?
check the U200
NO
YES
The pin #4 of U839
is
"High"?
check the U839
NO
YES
END