TVs are amazing at absorbing literally every particle of dust and dirt that is floating around the house. On occasion, these build-ups can begin to resemble dark spots on the TV screen. If that doesn’t do anything at all, let’s get into the real diagnostics! When cleaning the screen, we would recommend using a microfibre or soft cloth to get the job done. When there are dark spots on smart TVs, one of the main causes is the inputs. If the settings on these are out of whack, the result is that the picture will not be as good as it could be. However, for this stage, let’s just deal with the inputs at a physical level. ![]() So, all you will need to do is change the cables that run into the TV. If any of these were damaged (or just got too old), they can begin to cause more and more chaos until they ultimately fail entirely. If it is the case that all of the inputs and cables were indeed fine, we are afraid that you may need to consult the manual and find the correct input settings for the exact model of TV that you are using. We would love to be able to provide this info, but it does vary quite a bit from model to model. In most cases, the steps in this section will be what it takes to restore your TV to normal. Okay, so this one may sound a little weird, but bear with us while we explain the logic behind it. If you happen to be using your Vizio on its own and without a DVR, this could be having a negative effect on the picture quality. The reason behind this is that a DVR will effectively streamline and refine the streaming.īecause of this, if you happen to have a DVR available, we would suggest that you hook it up and try the TV again. In a few cases, this will solve the problem entirely. If it hasn’t, we’ll need to check what settings you have and see are they what is causing the trouble. Though unlikely to be wrong enough to cause massive dark spots on the screen, wrong screen settings can wreak a decent amount of havoc. In extreme cases, we have even seen settings that have led to clouding – which is exactly what it sounds like. So, we will definitely need to have a look into the settings you have in place to make sure they aren’t too far out of whack. If the room the TV is situated in, too much brightness may be the issue – that is especially the case if you are also using heavy contrast settings. ![]() While we are here, it would also make quite a bit of sense to try reducing the backlight level too. We are aware that not everyone will know how to adjust the backlight, so here is the procedure. ![]() The first menu you will need to go into is the “settings” menu.
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