LG GD580 Service Manual page 113

4. Trouble Shooting
1
2 2
3 3
3 4
LGE Internal Use Only
start start
Check the pin(TP1) and battery
connect terminals of I/O
connector connector
Connection OK? Connection OK?
YES YES
Is the TA voltage(TP2) 5.0V?
YES YES
Is the DCIN voltage(TP3) 5.0V?
YES YES
Is it charging properly
after changing Q402(TP4)?
NO NO
Change Main board
Trouble Shooting - Charging
NO NO
Change I/O connector Change I/O connector
NO NO
NO NO
Change Main board
YES
- 114 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Change TA Change TA
END END
Only for training and service purposes