Hello and Welcome. My name is ***** ***** I'll assist you today. I'm sorry you're having trouble with it. I need additional info to troubleshoot the issue.
- Does the 50mm wide bar always there or disappear after some time?- Do you get the bluish bar at same place regardless of what video input source is being watched on TV, like channels, DVD player etc?
Thanks for the info, unfortunately it is hardware related issue and suspected boards are C1 or A board. C1 board is mounted at left bottom of rear of display panel and A board is where all video inputs are located, also known as main board.
Another possibility is misaligned flat ribbon cables run from A board to C1 board or its contacts might get clogged and cleaning/ reinserting the cables will help to resolve the problem. If it doesn't work then need to replace C1 or A board to resolve the issue. 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 5 star on this page then click submit/finish button so I can get credit on website for my work. If you don't see rating option then intimate here.Regards,Shahid.
You would need to get the part number off of board and search/ google it to get price and stock info to order it, you can expect 30 Pounds for C1 board and 90~100 Pounds for A board.