Question about JVC AV-36D502 36" TV

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Interference? Hi, I have a JVC AV-36D502 36" TV. Ever since we brought it home years ago, we noticed that when you rolled it around the room, in certain parts of the room, reddish colored bloches begin to appear on the corners of the screen. This happens with nothing connected to the TV. I've tested this by pluggin only the tv into the wall or power bar and letting the screen turn blue. As I move it around, in some areas of the room I get red spots on the corners of the screen. When there is a cable signal, this translates to discolored corners of the picture (no red but more greenish). The red is only there when the background screen is blue. It has never been a problem before because we had found a spot where in the house to place the TV where this problem wouldn't occur. Now we have moved to a new house and this is really presenting a problem as we can't place the TV where we want it. We originally got a replacement from JVC when we noticed the problem as well as other issues and it happened on both sets. Has anyone seen this? The obvious answer would be interference, but I don't know what else could be interfering.....any help would be much appreciated.

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The picture tube on a TV can be magnitized by the Earth's magnetic field. The noise heard when you turn a TV on (usually followed by a static noise on the face on the TV) is called degauss. What this does it remove any magnetic variations on the tube due to things like the magnetic field and speakers. However, changes to the TV in orientation to the Earths magnetic field will cause the tube to have a magnetic bias. This is most prominent when turned 90 degrees. The easy way to clear this is to turn the TV off for a little while and then turn it back on. But remember that any movement once it is on can cause the discolorations to reappear. My suggestion would be to turn the tv after you've moved it to the location you'd like to view it.

Posted on Nov 15, 2007

  • Benjamin Madison
    Benjamin Madison Nov 15, 2007

    That should read "My suggestion would be to turn the TV on after you've moved it to the location you'd like to view it."

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