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4. TROUBLE SHOOTING
start
Check the pin(TP1) and battery
connect terminals of I/O
connector
Connection OK?
Change I/O connector
NO
YES
Change Main board
NO
YES
Is it charging properly
END
YES
NO
Change Main board
1
2
3
start
connect terminals of I/O
connector
Connection OK?
Change I/O connector
NO
YES
Is the VBUS voltage(TP3) 5.1V?
NO
YES
Is it charging properly
after changing Q400(TP4)?
END
NO
2
3
Trouble Shooting - Charging
YESYES
Is the TA voltage(TP2) 5.1V?
Change TA
NO
Change TA
NO
34
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