Question about Panasonic PT-52LCX65 44" HDTV

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Grren Spot on TV Screen

Hi All! After a lightning storm last night we've been noticing a "green blob" on the TV screen. We have the power plugged into a surge strip, not directly into the wall. Can anyone tell me what to do? THANKS!!!

Posted by Tara Riordan on


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What this problem might be is one of the guns (tubes) have been effected by magnetism. What needs to happen is the tube needs to be demagnetized with a degaussing coil. You can have theis done by a television technician. If you want to do this yourself you have to buy a degaussing coil and remove the back of your top half of your projection TV and with the set facing west take the coil holding it over all three guns and in a circular fashion rotate the coil moving away from the guns and the at the end turn the coil horizontally and remove it switching it off. This should remove the green spot.

Posted on Sep 24, 2007

  • donstv Feb 11, 2011

    This is the problem with asking tech questions online. The solution sounds good because it's technical. Problem is it impossible to "demagnetize the guns" on this TV, it's a DLP - no CRT's to demagnetize.

  • donstv Feb 11, 2011

    I have to post a correction to my previous comment. This unit is an LCD projection not DLP. However, they are designed very similar and the same principle applies. The problem most likely needs an EEPROM update done by an electronics service center.



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