Question about Proview MH422HUBD 42 in. Plasma Television

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Shaaded area on screen - Proview MH422HUBD 42 in. Plasma Television

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If its shaded area on left and right it's because of settings with your tv or cable box, it's usually hd channels showing sd show. Hope that helps

Posted on Feb 10, 2012

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Posted on Jan 02, 2017

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2 inch band across the bottom of screen


Downloading programs would not cause the type of problem you're having. It should be a hardware issue only.

1.The bottom area of your screen is close to a small curcuit panel behind the bottom plastic border of the screen frame. This little panel/bar is called the Screen Inverter. If its connection plug has loosened it could be the culprit.

2. The Display Cable behind the screen panel has become partially unplugged or damaged in some way at the top of the screen, or, it has looseened at its plug connector just underneath the back edge of the power strip panel/keybaord area so that pressure applied to the bottom of the screen frame makes it connect correctly.

3. The Screen Panel itself is failing.

These are the 3 areas I'd say you should have a laptop repair tech look at locally in your area.

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1 Answer

Stained / darkened image area on about 1/3 of screen


first how old is the tv with your first and second generation flat screens and plasma tvs alot of the logos have burned into the bottom corners of the screen and after awhile they burn so much in it grows to bigger portion of the screen and unfortuneatly there is nothing you can really do for this until its time to buy a new bulb if lcd for the tv sorry

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Monitor


This is probably a dead pixel area and there may not be anything that can be done other than replacing the screen. This could also be a stale area in the liquid crystal. Try massaging the area firmly, just hard enough to make the screen change color, but not too hard as to make it turn black. If it's a stale area this should refresh it. If it's a dead area, then I'm afraid replacement is the only option.

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"Finger Print" sized shaded area on screen


A shaded or dark spot on the screen is usually a bad pixel area and is caused by being hit or pressed to hard in that area. It could also be that the liquid crystal (LC in the LCD) in that area has become stagnant, try rubbing the area and around the area pressing firmly, just enough to see a color change in the screen area, but not too hard that the area turns black. Rubbing the area will move the liquid crystal around and sometimes refreshes a darkened area. If rubbing doesn't work, then it's a bad pixel area, and will eventually become a dead pixel area with time.

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Difference in contrast noticed when screen is black


If it is an LCD TV, then there may be lighter areas due to the location of the display backlights.

Areas closest to the backlights will be slightly lighter.

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