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LGE Internal Use Only
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
LG Electronics
84/115
LGE Property
U402 Solder
check
Resolder U402
Resolder or Replace
CN1
Yes
No
No
Check Touch Signal
(If not replace front touch
panel)
Yes
Yes
Replacd Main Board
U402
CN1 Solder check
START
CN1
LG Electronics
84/115
LGE Property
U402 Solder
check
Resolder U402
Resolder or Replace
CN1
Yes
No
No
Check Touch Signal
(If not replace front touch
panel)
Yes
Yes
Replacd Main Board
U402
CN1 Solder check
START
CN1