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4. TROUBLE SHOOTING
Checking Flow
START
I/O Connector(CN303)
Is well-soldered ?
YES
Voltage at anode of
D501 = 5.2V ?
D501, U508 are
well-soldered?
Voltage across R519 is
about 1.2V?
Battery is charged?
Charging is
properly operating
NO
NO
YES
NO
YES
NO
YES
NO
YES
Resolder the CN303
Pin 4,5 : VCHARGE
Pin12,19,26 : GND
The TA is out of order
Change the TA
Resolder the
D501,U508
Replace the
D501,U508
The battery may have
problems.
Change the battery.
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