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

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I have KP-51HW40, after being turned on for a few minutes the screen goes full organe/red. There is sound but no picture. Would anyone be able to let me know how to fix it. Thanks.

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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.

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

Posted on Jul 27, 2009

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I believe you have a bad Red CRT. I would not go into replacing it because the last I have heard, Sony no longer has the CRT assembly to send. You must remove the CRT, Remove the Mechanical Lens and send the CRT back to Sony so they can refurbish it. We are talking a lot of money for a professional to come out and do it. I do not recommend going alone on this. I would check the prices of replacement sets. This repair could easily cost 800.00 or more and you have no guarentee that the other two CRT won't fail soon.
Hope this helps,
Skyassoc

Posted on Jul 19, 2009

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