So repair is often more than a new set today which can upset folk. Keep searching on ebay for same model with a broken LCD than use those boards.
I'm going to supply a Youtube about connectors and cables. The symptom is not going to be the same but it does show the tech cleaning the connection and applying a special compound. You should do this.
Watch https://www.youtube.com/watch?v=WuwG5wqxTpE&t=2s
Then watch https://www.youtube.com/watch?v=G8777AzTf8U as they go over if it's a main board, LCD or other.
Hi I recently posted this in the Samsung forum but since I am new here I didn't know which forum was better to post in so I will post the duplicate here also. I recently had a customer give me the above tv for free. They were going to throw it out as the right half of the screen was red vertically. I did some research and found this video:
https://youtu.be/jXsu3nGQKIc
Sure enough this seemed to mimic my tv. With the back off and the top 2 screws out of the main board I could make it appear and disappear as I flexed the board away from the tv case. So I did the procedure and it seemed to fix the screen! I was stoked. But we still had some darker shades in the upper right corner than the left side. I figured since this was an expensive tv when it was new and it wasn't a complete dinosaur I would order a new main board. Well turns out I can't find one because it is discontinued. So I read the comments on the video and people were saying the re flowed their boards by baking them in the oven. So tonight I did this and let it cool. It did not hurt anything but it did not fix the issue either. The weird part is that even though you can make the screen act up by flexing the main board with screws removed, you can sometimes make it better or worse by flexing the entire tv. I just wanted to post here and ask if this tv was even worth messing with. In it's day it was a 2000 dollar tv but it is 7 years old? Should I keep looking for a repair or is it time to throw my "freebie" away? Here is some pics. Notice the black spots on the right and the red graininess on the right half.
http://i1338.photobucket.com/albums/o681/vaquero57/screen_zpsso8vgwhx.jpg
http://i1338.photobucket.com/albums/o681/vaquero57/screen2_zpsnioumgou.jpg

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