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Portable CCFL Tester

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    #1

    Portable CCFL Tester

    I would love to have a portable CCFL tester that you could just plug into a lamp. Push the button. And see if the lamp lights.

    Seems like it wouldn't be too hard to make one.

    I did see one already built; but at $129, no thanks.

    I've seen universal inverters on eBay for $9.99. Add a power supply (maybe from an old computer) and it seems like you could make one for under 30 bucks.

    How incredibly useful that would be, to just test the lamps and KNOW if they are good or not.

    Does anybody know of any inexpensive kits, plans, or do it yourself projects?

    Thanks
    Tags: None
    #2
    Re: Portable CCFL Tester

    Originally posted by Lumberjack777 View Post
    Does anybody know of any inexpensive kits, plans, or do it yourself projects?
    Check out this article.

    http://www.jestineyong.com/?p=2899
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      #3
      Re: Portable CCFL Tester

      I would like to share some of the things that have happened to me and caused me to go down the wrong path of diagnostics.
      I have found that just because a ccfl works in a tester or another inverter doesn't mean it will always work in the monitor you are trying to trouble shoot.
      I think of things this way,
      number a ccfl with the number One through the number Ten where One is the best, with little use.
      The ccfl is a load on the inverter, and the inverter has some type of sense circuitry to detect a fault,when the load changes or the ccfls ages.
      Plug in one ccfl with a rating of 9 into an inverter and the bulb lights and shows no signs of a problem.
      Plug the same bulb into another inverter, but this inverter sense circuitry has a little tighter parameters and the bulb lights, but there is a two second to black issue.
      I think you can get a better idea what's going on if you leave the suspect monitor as close to stock or like it came into the shop as possible.
      My example would use 1 or 2 bulbs from the problem monitor, and substitute known good bulbs in various combinations, try to pick on a pattern, see what works.
      Al.
      Whatever I do, I consider it a success, if in the end I am breathing, seeing, feeling and hearing!

      Comment

        #4
        Re: Portable CCFL Tester

        Originally posted by retiredcaps View Post
        Check out this article.

        http://www.jestineyong.com/?p=2899
        Retiredcaps. That's almost exactly what I was looking for. Thanks a lot

        And Alex. I totally understand what you are saying. My purpose is to know if I have burned out bulbs. Not as much as much the integrity of the inverter. Thanks
        Last edited by Lumberjack777; 01-19-2011, 04:31 PM.

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          #5
          Re: Portable CCFL Tester

          I made one from an old flatbed scanner inverter, put 2 wires with needles at the end so i can stick those in any ccfl plugs

          Comment

            #6
            Re: Portable CCFL Tester

            Originally posted by Rickthegreen View Post
            I made one from an old flatbed scanner inverter, put 2 wires with needles at the end so i can stick those in any ccfl plugs
            Now there's a great idea. Thanks

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