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How to change the red green and blue crt - Sony Televison & Video

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  • George Akers Apr 28, 2010

    the model #-kp51hw40

  • George Akers Apr 28, 2010

    the model # is kp51hw40,my tv screen turns red after a while .

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  • Sony Master
  • 5,138 Answers

What is the Model number printed on back of TV and why do you need to change crts?

Posted on Apr 28, 2010

  • ladywinn
    ladywinn Apr 29, 2010

    You do not need to change CRT Boards. Adjust your Red Screen Drive down on the Focus/screen control blockTop controls are for Focus to each Tube and controls under them are for Screen drive to each Tube R/G/B You will have to remove Front Bottom Panel on TV and behind it is the Focus/Screen control block.

  • ladywinn
    ladywinn Apr 29, 2010

    Mats Electronics Has CRT Boards for this set if you think its the Video IC on RED CRT they are $9.95 for whole board 1-800-628-1118

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6ya6ya
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as you are electronics engineer so let us discuss technically.

as you are unable to see green colour means you might be seeing picture of magenta colour

as technically

red+blue = magenta

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your two cathodes circuit is fine one ckt that is green cathode circuit is not working.

for that problem your will have to check

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