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Thanks for the pictures, there are two possible reasons for vertical lines band, either buffer boards (mark the board where the lines fall on bottom of screen) or logic control board, triangular board at center of rear of TV and 5 flat ribbon cables are plugged into it is causing this issue.
Now the real problem is, if logic control board swapping doesn't help then entire panel will be replaced because buffer boards are embedded with screen and can't be replaced because ribbon cables coming from panel are directly soldered on buffer boards and we can't resolder them on new buffer boards thus entire panel will be replaced.
Please check with following board supplier to get replacement logic control board to give it shot..
if logic control board swapping doesn't fix the issue then get the part number off of label pasted on panel to search/google it to get price info which will help to make decision about this TV repair. I trust my input will help you out. Please feel free to respond if you have any additional questions.
A positive rating to answer would be greatly appreciated, please click on smiley face/star on this page then click submit/finish button so I can get credit on website for my work. Regards,
Correct, logic control board swapping is only option here to see if it fix the issue or we are looking at bad panel.
Wish you good luck!
OK, please reply back with the result and if problem resolved then a positive rating to answer would be highly appreciated.