Original post by: C.Baukman ,
Sounds funny but my 55 inch samsung tv did the same thing i learned from a friend that if you take a small torch lighter or heat gun to the chips on the main board and use foil around them. So you wont damage the board. You press each chip down with the lighter or torch and only torch for 5 to 10 seconds. Let the board cool down and hook back up. I did this and mine has been working for 3 months now. I guess some of the solder came loose cause the tv has no fans to cool down the boards.