LG U250 Service Manual page 96

Start
Check the pin and battery
Connect terminals of I/O
connector
Connection OK?
Yes
Is the TA (or USB Cable)
voltage 5.1V (or 5.0V)?
Yes
Is it charging properly
After turning on Q301(or Q302)
, Q302?
NO
Change the board
[ Charger Troubleshooting Flow ]
4. TROUBLE SHOOTING
NO
Change I/O connector
NO
Change TA
(or USB Cable)
Yes
END
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