Panasonic Plasma Repair Shop
Pixelation is a common plasma TV problem that many owners face. This is basically when you start seeing squarish spots on your TV. Before you jump to conclusions, do a simple check to confirm that it is, in fact, your TV that is the problem. Try using inputs from multiple devices (cable, gaming console, computer). Chances are, it's the input that's the problem. If the problem still persists, try changing the screen resolution, like watching a 4:3 format video in a non-stretched mode. If you still see the problem, you don't really have much of a choice than to call the seller.
Sunburst Pattern on Display
Another plasma TV problem is a sunburst pattern on the display, similar to ones observed on laptop screens. What happens is you may see a ring or a burst of color. The main reason for this is a screen that isn't completely flat. This can be caused by something like pressing the plasma television screen too hard. You may cover the television with a glass case, but this will only increase the screen's reflectivity.
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This is a common plasma TV problem that causes a static image to be faintly visible even after the image on the screen changes. This is called image retention or image burn-in, and the pattern remains visible when you are watching something else. This problem is now almost undetectable in newer plasma screens that have better technology. Manufacturers now include built-in technology like 'pixel wobbling' to tackle this problem. This technology subtly shifts the image to surrounding pixels and keeps the images moving. Quite frankly, the only places where burn-ins are common are in plasma TVs used to show airline timings in airports. Apart from that, a slight ghost image that lasts for a short time before fading off is all that users see.
Plasma TVs basically work by heating up gases inside the panel. While this does not directly imply that plasma TVs tend to overheat, leaving them on for a long duration (upwards of 18 hours) can cause them to get slightly hotter than their usual temperature. Still, this is not a problem to get worried about, and poses no harm to you, your room, or your TV. Just make sure there's enough space for ventilation between the TV and the wall behind it.
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This is, again, a problem prevalent mostly in older plasma TVs. New TVs from popular brands rarely pose this issue, and in the case that they do, it is usually a manufacturing defect. Exercise caution when you're buying second-hand plasma TVs though, this can be one of the more common problems with them.
Reflections on the TV screen from surrounding light sources is a very distracting and annoying problem as the focus keeps shifting from the images on the screen to the images reflected. To overcome this problem with plasma TVs, you can either pull up the blinds, or cut down on the light intensity in the room while watching TV. Another solution is to buy plasma TV's that have a built-in anti-reflective coating on the screen. This will help reduce the reflection on the screen, but you still need to adjust the room lighting.
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Increased Power Usage
Plasma TVs tend to consume more power than most other display units, therefore you may observe a hike in your power bill. Reducing the brightness and contrast to medium levels will help the issue, but reducing picture quality after buying a TV that features it is not really an option that one would go for. All in all, the bills that you rack up due to owning a plasma TV aren't too huge when compared to LCD and LED TVs. You also have to consider that primitive plasma TVs used crude display methods. New technology has made it possible to produce increasingly power-efficient plasma TVs. They're still not as efficient as LED/LCD TVs though, so it is prudent to consider a plasma TV as a long-term expense.