We just got a new cable box, and for some reason when there is an image with a lot of white in it, the whole screen will pretty much wash out so you can hardly see anything. I tried changing the settings from 780p to 480p/480i, but that made no difference
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The white spots are pixels that are burned out. They will just gradually get worse. You will need a new screen or just replace the whole TV. Probably buy a new one for what it will cost to get a new screen put in it.
What cable is being used? Often times there is a few things that could effect the picture and causing flicker. If you are using an HDMI cable, or the hdmi plug on the box or tv, you could have that problem. Because the picture is digital, you don't get the snow and lines we were used to. Because the cables are so stuff, often over time they can stress and pull on the plug and cable. Try a new cable, if that does not work, try another hdmi input on the tv. If that fails then try a new cable, like a component cable or RCA. If none of these work and you still have this issue with the box then most likely it is the tv or the box. Swap out a new source, and start this process all over again. If you get the same result then it is the tv. If it works with the same cables, then it is your box. Att will send you a new box if that is the case. If it is the tv, call Vizio. Warranty or not call them. If you are sure you are out of warranty, play dumb, be vague but nice. Often you can get someone out there still at no cost.
Sounds like a burn in, this is common when some still image is left on the tv screen for sometime, the only hope is to get to a white screen or static screen and let set for awhile, like the old days when you didn't have cable or any input and the tv just frowns.
what she tried to sell her was and HDMI cable for hi def signal between box and tv. now with what your describing sounds like panel solarization. if you can send me a pic i could better verify your problem. sent pic to firstname.lastname@example.org
The most likely thing is that your screens backlight or inverter has gone faulty.
When you turn it on, you may be able to see a very very dark image of something (best seen by activating the TV menu). On some screens the picture is still far too dark to be visible though.
With this kind of fault, its down to fitting a new inverter, and if that doesn't cure it, then fitting a new backlight bulb (or bulbs) will sort it out, but these are not jobs that can be done without some expertise at them.
Most TV inverters are large circuit boards inside, and take about 20-30 minutes to change as the whole TV has to be dismantled, but the backlight bulbs are much more complicated (and extremely fragile too).
Unfortunately, there's not much else that can be done except trying changing those 2 parts. Although its possible for the screen cable inside to become disconnected and lose your picture, that results in the screen lighting up brightly (usually pure white if the cable comes off completely).
Yes you will get a better picture quality out of a cable box if you get an HD cable box. The reason you are getting the diminished picture is due to the signal you are feeding the TV is an analog signal. The newer HD TV's are made for digital TV and this older technology shows all its flaws on this type of TV.
When you get the new box understand that the same channels you are getting plugged directly into the tv are still going to have some grainy look to them but the good thing is that a lot of them are starting to be rebroadcast on HD channels and that is where your new toy will truly shine.
The backlight has gone (Find a dark place and shine a torch into the screen and see if you can see an image in the background, if you see an image then the backlight has gone) - Needs a new backlight (Engineer to remove and fit) or have a new panel fitted.
This sounds like the digital equivalent of 'snow,' a random noise that can come from poor signal quality or poor or not firmly attached cables.
I'd try exchanging the cable that is now in place from whatever signal source you have (cable/cable box, satellite receiver, etc.) with another either new or temporarily borrowed one from another device.
If this doesn't help, consider the other modern devices you have in your home such as light dimmers, fluorescent bulbs, digital clocks, home theatre equipment, etc.
Pull the plug on any of those, one at a time and observe the TV to see if any of them are affecting it.
Those named items are common sources of high frequency noise that can contribute to the kind of problem you are having. They have gotten better but can still produce unwanted sources of interference signals.
yes its a cable box problem, find the channel you are having more problems with,press guide in the cable box remote and you will see how the box where the video is will still have the problem and the guide with channels info its going to be clean,
100% weak signal