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It only jumps when there is too much white (light colors) on the screen. It i easiest to reproduce when i use my wii which has a mostly white background but it happen no matter which input i use. the unit is about 5 yrs old but i have had it off for about 1 year now. it does not jump on the menu but i believe only because that screen is dark. It does seem to get worse (more sensitive) as the tv warms up.
Jumps/flickers not big just like the screen it twitching...
i did find someone else while googling with the same issue here was their answer.
12 interesting, i have the same TV and it does the same thing. did you guys find a solution.
May 17, 2011
azgreg This is what I found. I put a large floor standing fan blowing air in the right rear side helps significantly. I'm going to buy a couple new muffin fans and see if that works. I think the fans just got weak and aren't cooling it off like it should. Let me know if this works for you. The floor standing fan that is.
Aug 25, 2011