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    #1

    Ceramic cap blown to pieces

    Greetings. This is my first post so i hope im posting in the correct place. I have a TV Telefunken model no: TLED-26FHDP. Tv smoked so i opened it up and found a spot on the power board right next to the 220v in that was black and two legs left behind. After searching the interwebs i found a pic of the same board.
    After looking at the pic i saw that it was a ceramic cap that blew to pieces.
    The ceramic cap in question is the black mf72 bottom left. In the pic its MF72 and under 509. I found a slightly bigger one that is MF72 and under 4.7D13. Will this one i found work? And then also why would the ceramic cap have exploded? The fuse checks out good and few other items i tested out all seem good. Would it have damaged anything else?
    Thanks in advance for any help....
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    #2
    Re: Ceramic cap blown to pieces


    sorry here is the image.
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      #3
      Re: Ceramic cap blown to pieces

      Not a Cap. that's a NTC thermistor, a startup current limiter. They don't often fail without reason. Possibly something is pulling too much power or is shorted. When you bring that TV back up use a dim-bulb tester.

      https://cdn.badcaps-static.com/pdfs/...478d45c4d1.pdf

      You have a MF72-5D9 which is 3 amps. The one you found is smaller, may work depending on the power rating of the TV.

      EDIT: After going through the ratings of the TV, 65w/110v=0.6a. But, the one you found has higher resistance, so it may not work.
      Last edited by goontron; 12-29-2016, 02:54 PM.
      Things I've fixed: anything from semis to crappy Chinese $2 radios, and now an IoT Dildo....

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        #4
        Re: Ceramic cap blown to pieces

        Thank you for your reply. I am fairly new electronics... So the MF72-47D13 is the one i found and i see by the link you provided that is higher resistance. I will go and purchase the correct one. I have been spending hours on the web watching clips to see how to test out components, and have learned a great deal so far. I am going to test out all the components that i know how to test and see if anything stands out. Thank you once again for your reply and contributions it is really awesome having a guiding hand while learning.. Will also look into the dim-bulb tester and how to use and update once i get there..
        mike

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