That's next. As to which board, you use service manuals to determine which to change first. I will write it doesn't look like a panel failure.
Hello, I have 47 inch LG LED TV and there is a bar appearing on the left side of my LED TV along with lines. Usually this bar appears after 30-40 mins when turned on. I have tried changing T-Con Ribbons and washed T-Con along with Motherboard with Contact Cleaner but nothing happened, same problem appears every time.
I would highly appreciate if anyone can help me out with this issue.