LG -T370 Service Manual page 71

4. TROUBLE SHOOTING
START
Change the battery
Yes
Battery is charged?
Charging is properly operating
No
No
Is I/O Connector(CN401)
Resolder the CN401
well-soldered ?
(Pin 1 : VBUS_USB)
Yes
No
Check the voltage at
The TA is out of order
TP1 (Charging IC(U401))=5.1V ?
Change the TA
Yes
No
Replace the main board
Battery is charged?
Yes
Charging is
properly operating
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