Question about Sony KP-51WS500 51" Rear Projection Television

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Hi. I own a Sony KP-51WS500 rear projection system where several months ago the red arced lines started to appear accross the entire screen, dim at first but growing in intensity. In the last few days the whole image began to turn pinkish (less intense in HD channels, but more intense in dark scenes), but today all went nearly solid red. There is an error light flashing 5 blinks on the front panel, and the red CRT is running very hot (I took off the back cover). There is also a black 'bladder' on the front of the CRT frame that is buldging out, which I assume is the cooling fluid pressure relief. I assume that the red CRT is failing and is being overdriven by the AGC. If so, is a replacement CRT available, and is it worth fixing?

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  • ebmfuser Aug 31, 2010

    Sounds like a plan. I would like your assistance (instructions) with this. Thanks again.

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This is a model prone to all three tubes failing in this way. When the sets were less than a year old there was a program from Sony to replace all three tubes--it seems the wrong tubes were installed.

The tubes are now only available on a rebuild basis--take out old one and send out for rebuild and very expensive.

An alternative exists, it involves (in your case red) getting at the RED SCREEN CONTROL AND TURNING IT DOWN UNTIL THE SET DOES NOT SHUT DOWN and then adjusting it further. No parts will be involved and should take less than 20 minutes.

Set will shut down if screen turns bright red, green or blue as it detects too much current is being drawn.

If you want to know how to attempt this, rate this solution as very helpful and I will assist you.

SD TECH

Posted on Aug 31, 2010

Testimonial: "I got the info I needed, and quickly. Great job."

  • 3 more comments 
  • aharman3 Oct 02, 2010

    could you please send me the solution? Very helpful!!!

  • 4gilberts Nov 03, 2010

    Having this same problem...can you help?

  • bozzie4402 Dec 11, 2010

    I am having the same problem but now my screen is completely black...please help!

  • Shelley Whiteside
    Shelley Whiteside Jan 30, 2011

    I am having the same problem, only with green. Could you help me with what I need to do to make the needed adjustment? Thank you.

  • Jessica Pollinger May 19, 2011

    I am getting the blue screen. Will this work for me as well? I would love to be able to still use this TV!

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