LG KT520 Service Manual page 115

4. TROUBLE SHOOTING
Check the pin and battery
1
connect terminals of I/O
1
2 Is the TA voltage 5.1V?
2
3
3
LGE Internal Use Only
start
connector
Connection OK?
YES
YES
Is it charging properly
after changing Q600?
NO
Change the board
Trouble Shooting - Charging
- 116 -
NO NO
Change I/O connector
NO NO
Change TA
YES
END
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