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4. TROUBLE SHOOTING
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Start
Check the +5V_PWR Pin of I/O
Connector and Battery contact
terminals
Connection is OK ?
YES
NO
Change I/O Connector
Change the Main board
Check TA ( or USB Cable )
Voltage ( 5.1V )
YES
Is it charging properly after
turnning on U304
NO
NO
Change TA ( or USB
Cable )
YES
END
[ Charger Troubleshooting Flow ]
[ Charging part ( Main PCB) ]
U304
R315
Summary of Contents for U370
Page 1: ...Date January 2008 Issue 1 0 Service Manual Model U370 Service Manual U370 ...
Page 178: ...Note ...
Page 179: ...Note ...