Question TCL 65" TV Vertical Line

Aug 7, 2020
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I have a 65" TCL Roku TV that has worked flawless for about 4 years now. The model is 65US5800.

I recently had one of our cats unfortunately spray the front of the TV a few weeks ago. I cleaned that off as best I could. A few days ago, I noticed a single, vertical white line show up on the screen. It went from light blue to white. I am attributing the problem to what the cat did. But this is the ONLY issue I am having with the TV and hate to replace it just for that.

Is there a part I can replace to fix the issue?

Here is a pic:
https://photos.app.goo.gl/i5ReT3Q87B95pfNr6
 

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