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Flow Chart of Troubleshooting and Circuit Diagrams
3-10
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3-1-4. Charging Part
Charging does not work
END
Check IFCN400 connection status
with TA
NO
Check U404 pin#3 = LOW
Change U404
NO
If charging with TA,
check voltage level
at U404 pin#1 = 5V
YES
If charging with USB,
check voltage level
at U404 pin#2 = 5V
NO
Check IFCN400 connection status
with USB
YES
YES