LG LG-K430DSF - Charger

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3. TROUBLE SHOOTING
Check the Connection
of uUSB and battery
START
NO
Connection OK?
Yes
Is the uUSB Cable
voltage 4.9V(or 5.0V)
NO
Yes
Is it charging properly
After turning on?
Yes
NO
Change the Charger
( U4700 )
Yes
NO
Yes
Change the Main PCB
Change TA
(or uUSB Cable)
END
END
END
Linear Charger
3.9 Charger
The I/O connector and uUSB cable voltage(5.0V) is used as the reference one of PMIC for charging.
Checking Flow Image
I/O connector
Change I/O connector