A quick ccfl question

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  • diif
    Badcaps Legend
    • Feb 2014
    • 6978
    • England

    #1

    A quick ccfl question

    Hello, I've stripped down a 23" monitor as i suspected the top ccfl had a problem.

    Yes it does. I have a new replacement ccfl but as you can see the end cap has burnt and cracked and is no longer usable.

    My question, can i use hot glue after i have soldered a new wire on the end, has anyone done this or should i order some new caps for the end ?
    Attached Files
  • budm
    Badcaps Legend
    • Feb 2010
    • 40746
    • USA

    #2
    Re: A quick ccfl question

    Hot glue will not handle the heat, I would use the RTV Silicone.
    Never stop learning
    Basic LCD TV and Monitor troubleshooting guides.
    http://www.badcaps.net/forum/showthr...956#post305956

    Voltage Regulator (LDO) testing:
    http://www.badcaps.net/forum/showthr...999#post300999

    Inverter testing using old CFL:
    http://www.badcaps.net/forum/showthr...er+testing+cfl

    Tear down pictures : Hit the ">" Show Albums and stories" on the left side
    http://s807.photobucket.com/user/budm/library/

    TV Factory reset codes listing:
    http://www.badcaps.net/forum/showthread.php?t=24809

    Comment

    • SteveNielsen
      Retired Tech
      • Jun 2012
      • 2327
      • USA

      #3
      Re: A quick ccfl question

      My only concern would be the tube getting hot enough to compromise the hot glue. RTV might be a better choice.

      Comment

      • diif
        Badcaps Legend
        • Feb 2014
        • 6978
        • England

        #4
        Re: A quick ccfl question

        Cheers guys, like this ? http://www.amazon.co.uk/V-tech-Black...h+rtv+silicone
        600F or 315C

        Comment

        • budm
          Badcaps Legend
          • Feb 2010
          • 40746
          • USA

          #5
          Re: A quick ccfl question

          BTW that end cap is made from silicone.
          Never stop learning
          Basic LCD TV and Monitor troubleshooting guides.
          http://www.badcaps.net/forum/showthr...956#post305956

          Voltage Regulator (LDO) testing:
          http://www.badcaps.net/forum/showthr...999#post300999

          Inverter testing using old CFL:
          http://www.badcaps.net/forum/showthr...er+testing+cfl

          Tear down pictures : Hit the ">" Show Albums and stories" on the left side
          http://s807.photobucket.com/user/budm/library/

          TV Factory reset codes listing:
          http://www.badcaps.net/forum/showthread.php?t=24809

          Comment

          • diif
            Badcaps Legend
            • Feb 2014
            • 6978
            • England

            #6
            Re: A quick ccfl question

            Yeah, it's not the best photo but the cap is brittle and in several pieces due to the arcing.

            Comment

            • SteveNielsen
              Retired Tech
              • Jun 2012
              • 2327
              • USA

              #7
              Re: A quick ccfl question

              I'd use white or clear RTV instead of black. If a bad connection or something develops such as an arcing problem later on the black is going to make it harder to see.

              Comment

              • diif
                Badcaps Legend
                • Feb 2014
                • 6978
                • England

                #8
                Re: A quick ccfl question

                A good point SteveNielsen, I ended up going to a local Halfords (motor spares etc) where I got some clear instant gasket. Rated to 250c. The monitor is back together and seems ok so far. No flickering or bad smells.

                Comment

                • SteveNielsen
                  Retired Tech
                  • Jun 2012
                  • 2327
                  • USA

                  #9
                  Re: A quick ccfl question

                  That'll work fine. Good job

                  Comment

                  • diif
                    Badcaps Legend
                    • Feb 2014
                    • 6978
                    • England

                    #10
                    Re: A quick ccfl question

                    Thanks, it's the second 23" screen I've fixed. Both a Sony i have and this NEC both used identical 23" LG panels (LM230WF1). Both with almost identical issues in the same place.
                    For future searchers of this forum I got my CCFL from here.
                    http://www.aliexpress.com/snapshot/6231207072.html

                    Comment

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