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REAR PROJECTION TV (RU44SZ80L) HAS BIG LIGHT BLUE BLOTCH IN CENTER OF SCREEN WHAT CAN BE DONE TO REPAIR PROBLEM

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Defective optical block

Posted on Sep 03, 2008

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Blue light


You cannot. The blue blotch is a sign that your optical block is going out. This will only get worse. The optical block will need to be replaced. This is not cost effective.

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SET uses a optical light engine--lamp which is quite hot shines into the engine---blue is first to get the light and heat and is usually first area in the lens and baffles to get damaged(loss of blue leaves red and green which equal a yellow screen.

You have a damaged light engine.

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Either dust/dirt inside (unlikely but possible) or a damaged optical light engine--Google the model number with "problems" etc.

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Blue Screen w/Flashing light in the middle echoing out to edge


Good Day, you all;

This TV has many problems......at least three boards and many parts on each PCB..... most places charge between $750.00 to $1,200.00 to repair. So, I will let you be the judge if it is worth it. Get an estimate from an authorized service center be fore making final decision.

If you can repair yourself I will be glad to give you the info.....it takes an experience tech about 3 hours to repair.

Good Luck, big IRISH.

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1 Answer

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This sounds like the Sony blue star failure and this problem is under Sony extended warranty. Call Sony with your model # and serial # and tell them them you have the blue star issue and they will refer you to an authorized Sony service center and the repair will be free.

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