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Can you get a hand degaussing coil....and go over the tube? If it is ok....you should be able to clear the problem up. just make SURE....it is at least 4 foot away from the set---when you plug in coil.. and then before you unplug the coil.
it MAY be so heavily magnetized.....that it takes some passes of the coil, over the front of the set and even behind it. just keep it AWAY from the neck of the tube.
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