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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4. TROUBLE SHOOTING
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
START
Are all LEDs
Working?
NO
YES
Check the soldering
each R and LED
Backlight will work properly.
NO
Replace or resolder
component
CHECKING FLOW
4.14 KEY backlight Trouble