Question about Sony KP-51HW40 51" Rear Projection Television

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Screen fades to blue after 10 mins of viewing. Sony kp-57hw40

The problem started in Nov. All the sudden the picture was "concave". 6 months later, we can watch concave picture for 10 minutes, then the screen fades to blue. Sound is fine. The tv was manufactured in 2002. Help!

Posted by hinojosasand on

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Julie Peterson

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This link has the instructions on how to fix this problem and other similar problems. You have nothing to lose, so I recommend that you try it.

http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html

This works with the two other colors, blue and green also. Not all models of Sony Projection TVs have the red, green, and blue pots in the same order as the picture that is listed on this link, so you may want to google search for your model's service manual. The service manual can also help you be able to remove the cover for your particular model of TV. I was able to find the service manual for my model, and sure enough, the order of the pots are reversed on mine, so I would have been adjusting the wrong color. Read all of the comments on this link too, because you can find other helpful tips and may even find someone with the same model of TV as you that gives more specific instructions for your model.

You may also find your model's service manual here:
http://esupport.sony.com/US/perl/index.pl

I hope this helps you!
Fare well. :)
Iconoclast

P.S. you can also clean the mirrors and dry dust while you have it open.

Posted on Jul 27, 2009

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