My 2013 Panasonic plasma tv has a thin vertical multiple colour line. What could be the problem?

Should I start by cleaning the flexible connectors at the bottom of the screen or there could be a problem with one of the boards? From pictures posted, need to remove brackets to get to the bottom flexible connectors.

Changed SC board in 2018 for the 7/8 blinking red lights....

Re: New Members - please post your introductions here

Hi I'm Siew. In Finance but loves DIY repairs and projects around the house e.g. plumbing works, laying water pipes and installing water tanks with pumps, sous vide cooker, repair faulty camera lens, swapped out broken LED monitors/phone from parts bought online etc.

I have a 2013 panny plasma 60" ST60 and lately there's a thin coloured vertical line that requires attention and here I am looking for solutions.