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LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
2. Can not charge battery
3. No or Low audio (receiver)
6. Repairing
Replace J704.
Battery is broken.
Check contact of the USB connector
(J704)
Broken
Good
Check contact of battery terminal
(J502)
Broken
Replace J502.
Good
Check the Battery. Try another good
Battery.
It works
Still doesn't
charge
Check U501 and F501 is OK?
No
Replace U501 and F501
Yes
U502 is damaged.
Check the C702 output
NG
Good
Audio comes out?
No audio
Check the receiver contacts
(J702)
Clean the receiver contacts (J702)
NG
U401 is damaged.
Good
Replace receiver.
C702 Outputy