Question about Panasonic PT-51HX42 51" Rear Projection Television

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Yellow area on screen

Yellow spot started on lower left of screen, gradually progressed over past 2 months to cover upper left quarter and bottom half of screen. When the tv is off of a channel and the blue screen is up the same area appears darker, almost black

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Either burn in or magnetic field interference. I suggest moving any speakers away from the tv. if thats not the case, then find a strong magnet, make sweeping motions across the screen with it but dont touch the screen! Keep doing this until the colors change, then "sweep" them with the magnet into a corner and they will mostly dissapea.......r, sounds complicated but worked for me. can be scary so dont try unless sickly despearate or confident.   Hope This helps!

Posted on Jan 24, 2009

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The set if projection which model here is, has arced and now each of the three picture tubes used has a tiny permanent burn mark on its screen.

That is what you are seeing, the set uses three picture tubes with screens like the old tv sets===the coating has been burnt in each, want to prove it, remove rear cover and cover any one of the three lens and that mark on one tube will go a way.

Not fixable.

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As long as your convergence adjust properly the board has nothing to do with the new symptoms,yellow spots are associated with the blue picture tube,you can check for dirt on the face of the tube,you can check if the spots move like water when you move the unit to see if is short in fluid,be careful when checking with the back removed.You can cover the face of each tube to see if the spots are in the other colors.Let Us know if you need more help.

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