Substitute CCFL backlights in Sanyo

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  • Wingryder
    Senior Member
    • Oct 2015
    • 83
    • USA
    #1

    Substitute CCFL backlights in Sanyo

    I have A Sanyo 42 Inch with one backlight ccfl burned out. This is causing the one second to black that is discussed in length on this forum.
    I have some ccfls from a different tv set that are the same size diameter wise . But are about 5 inches shorter.


    I want to clip one end of my shorter tube in as normal and then support the other end with a plastic support so it is not just hanging in the air.
    And then run a wire from the end of the ccfl to the other clip. ?? Will this work?

    I am not worried about loss of light. Just want the TV to stay on.

    Wingryder
    Tags: None
    • Wingryder
      Senior Member
      • Oct 2015
      • 83
      • USA
      #2
      Re: Substitute CCFL backlights in Sanyo

      Looking closer my donor lamps are maybe one size larger than the originals. The ends still fit the clips so it's not much. Will this cause any grief with current draw?
      Last edited by Wingryder; 01-22-2016, 06:08 PM.

        Comment

        • Wingryder
          Senior Member
          • Oct 2015
          • 83
          • USA
          #3
          Re: Substitute CCFL backlights in Sanyo

          Well no joy. I put it back together and still have the same two seconds and then the backlights go out. I did not know how to leave it partial apart so I can see what is happening. Don't think the donor lamp is working.

          So what happens if you leave the lcd screen out.. tcon board unplugged etc.
          will the safety circuits stop the backlights from even trying to light?

          Feel free to jump in... Is it because the lamp size is wrong??? There might be more than one out.... The one I replaced was black all the way across, none of the others looked that way.

          help

            Comment

            • vinceroger69
              Badcaps Legend
              • Mar 2012
              • 6714
              • uk
              #4
              Re: Substitute CCFL backlights in Sanyo

              Whats the full model number of the tv also can you upload good clear pictures of the boards used in the tv also one showing how all the boards are connected together.
              Last edited by vinceroger69; 01-23-2016, 01:22 PM.

                Comment

                • ReeceyBurger123
                  Never Give Up !
                  • May 2014
                  • 7325
                  • Britain
                  #5
                  Re: Substitute CCFL backlights in Sanyo

                  Did you even check the inverter transformers ?
                  Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

                  https://www.facebook.com/Telford-Tel...7894576335359/

                    Comment

                    • Wingryder
                      Senior Member
                      • Oct 2015
                      • 83
                      • USA
                      #6
                      Re: Substitute CCFL backlights in Sanyo

                      Thanks for the input.. Well good news its lives. Removed the LCD panel so I could see the lights and the short one was working fine but there was one more out that did not look burnt. Put another donor lamp in that slot and she stays on and looks great.
                      I was a little worried about those ribbons tabs on the lcd panel because of all the teardowns... but they survived and picture looks good. No lines or troubles.

                      Will let it play all afternoon and I will get it back to the friend that gave it to me.

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