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Checking Flow
SETTING : Connect the battery and the charging adaptor (TA) to the phone
START
YES
Charging Connector
CON300
Well-soldered?
YES
Voltage at
Pin1(V_CHAR)
of CON300 = 5V?
YES
Q401,R461
well-soldered?
YES
Does U400 and Q401
work Properly?
YES
Is the battery
charged
YES
Charging will operate properly
NO
Re-soldering CON300
NO
The charging adaptor (TA) is out of order.
Change the charging adaptor.
NO
Re-Soldering Q401,R461
NO
Change the U400 or Q401
NO
The battery may have the problem
Change the battery and try again.
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