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CCFL Tester

By on January 15, 2009

HR DIEMEN the company that sells lots of Flyback transformer and other electronic parts had came out a CCFL tester and was launched last year. This tester is use for testing the backlight of LCD TV/Monitor so that you would know whether is the backlight or the inverter board is faulty. This tester could save up some of your time because there is no guessing game involved. I wanted to buy one but it seems that this product had sold out. If you have this tester i would like to listen to your comment-thanks! Please click on the photo to visit the website for more information:

ccfl tester



  1. jerry jean-claude

    February 24, 2009 at 9:00 am

    I want to know the price of the ccfl tester including tax and shipping.Remenber I m not in UK ,I m in US.Thank you.

  2. jerry jean-claude

    February 24, 2009 at 9:02 am

    The ccfl tester can save a lot of time.

  3. admin

    February 24, 2009 at 11:45 pm

    Hi Jerry,
    Yes definitely.


  4. admin

    February 24, 2009 at 11:46 pm

    Hi Jerry,
    I do not sell this tester you have to visit the website and email them.


  5. Jose E. Kunhardt

    September 29, 2009 at 2:30 am thats the link for a CCFL tester sold here in US.

  6. Amir Mukhtar

    February 10, 2011 at 3:05 am

    Sir, Jestine
    AS CCFL Tester is concern, i would like to bring into your notice that i will make that tester soon. and guide to make other people easily.
    Actually, now a days i do learn regarding my M-Tech in electronics and after that i will start to make tester. give me blessing and pray to success in make tester.
    thanks you
    Amir mukhtar

  7. admin

    February 10, 2011 at 4:28 am

    HI Amir,

    Nice to hear about that. If you could successfully build one i would like your article to be published in my monthly repair newsletter. You can email me at jestineyong(at) when the article is done. If you could include the diagram and the photos that will be good.


  8. Johan

    March 2, 2011 at 1:00 pm

    Hi guys. I have bought this tester for my workshop. In our experience, this is NOT a tester but mearly an intrument that supplies a high voltage to the circuit after the inverter transformer. This in turn lights up the CCFL, we have made a lot of tests on verious monitor CCFL's and as long as the CCFL lights up, even if you get a very weak ccfl, you will always get a good(CCFL working) signal and can be very misleading. I am dissapointed in this instrument as it does not do the work it is supposed to do. We have tested this with a "dead" ccfl and still shows "good" because of a very slight glow in the tube and this can cause endless and unnecessary testing and work on the inverter board when the fault is a "dead" ccfl. Maybe someone else can shed some light on this subject.
    Best reagrds

  9. admin

    March 3, 2011 at 10:49 pm

    HI Johan,

    Thanks for the comment and hopefully someone could shed some lights on this instrument.


  10. serv

    December 30, 2011 at 9:37 pm

    clicked on the photo but no forums found just directed to yours shop.:(

  11. admin

    December 31, 2011 at 12:00 am

    Hi Serv,

    It is working. The photo will brings you to the respective website.


  12. Mircea Badea

    January 22, 2012 at 1:21 am

    I have this tester and are pleased with him. Greetings Jestine.

  13. admin

    January 22, 2012 at 8:21 am

    Hi Mircea,

    Good to know that. It can test until how many inches of the backlgiht? Some tester could test until 32".


  14. reza

    February 3, 2014 at 12:13 am

    i want to make ccfl tester?
    help me ..


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