LG GS290 - Page 85

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4. TROUBLE SHOOTING
GS290 Operational Description Revision B
LG Electronics 86/136 LGE Property
4.11 Touch trouble
Check Points
- Touch driver IC soldering`
- Touch connector Crack
U400 Solder
check
Resolder U400
Resolder or Replace
CN400
Yes
No
No
Check
T
ouch Signal
(If not replace front touch
p
anel
)
Yes
Yes
Replacd Main Board
U400
CN400 Solder
check
STAR
T
CN400