Question about Sony KDF-E42A10 42 in. LCD Television

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I have a giant blue blob in the middle of my screen. I just replaced the bulb and its still there. What is the problem? why didnt it go away when i got a new bulb?

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  • Ranjith Kolary May 11, 2010

    What exactly you meant by a blue blob?

    Does the issue occurred after replacing the lamp?


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The bulb isn't the problem. This is a HUGE manufacturer defect. Infact this problem was so bad that sony stopped making RP tv's all together. There was a class action law suit to force sony to fix this problem as it was a know defect. The action is now closed tho. If you still want to try and fix this ol' guy. You need to replace the optics block as a whole ($500+) The blue blob is caused by the refraction lenses comming delaminated from heat. There's no way to buy just the small lense without shilling out for the whole shebang. Do yourself a favor and see if you can sell it for parts and put the money toward a new (samsung) lcd.

Posted on Jun 23, 2009

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1 Answer

I have a ultravision 50v500 and it has a blue blob in the middle of screen. I have just changed the bulb with hardly any change in the blob. I also had the light engine changed approx 2 years ago.


That is caused by excess heat possibly due to poor air circulation/blocked filters.
It is damage to the LCD panels. It won't get any better, just worse.
So look for another Blue LCD panel and someone who is experienced to fit it.

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http://sites.google.com/site/sonylcdrptvproblems/sonykdf-55wf655opticalblockreplacement

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The problem here is the one of the miniature LCD screens in the unit is faulty, in this case its the blue one. There are three of them inside the unit RED<GRN<BLUE. The blue seems to be failing in your unit, for instance if you mix red and green you get yellow. Have a local shop service the unit and clean and refocus the unit back to factory spec's..

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There is no solution with Hitachi products.

If you have read many of the posts, you would have known not to buy Hitachi Telivisions or like me avoid all Hitachi products. There help line is not very useful, they just blow you off. I have never had a worse experience with other manufacturers. Take Onkyo for instance, they had a problem with a chip in their THX receiver and it was a year later ... I called their help line they located a repair store about 40 miles from where I live (in Texas that is not very long) and got my receiver fixed and this was 8 years ago.

Also use Consumer Reports to check the frequency of repair record for the product you are going to buy. In Plasma - Panasonic is a safe brand, in LCD's Sony or Samsung have good repair records.

Research the product before you buy it, avoid walking into a store have the salesperson direct you to a product. And then you save money if you order it online. Amazon online is very good.

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To all that are experiencing the blue blob. This is result of poor maintenance. Projectors must be kept clean on all air intakes. This is to help you all understand the failure cause. Usally not worth repairing.

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