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Broken inductor...to rewind or not to rewind, that's the question.

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    #1

    Broken inductor...to rewind or not to rewind, that's the question.

    OK this damn Sony Trinitron threw me another curve ball tonight. As I was cleaning the flux off the board I noticed an inductor was not secure...I made sure it was soldered, it was.

    The glue that held the bobbin tot he pin base had gave way....one of the wires had broke, the inner one of course. The inductor had to be totally unwound to get it.

    The question is, once rewound is it suitable for use in the TV? Its connected in parallel to a cap and resistor in series and this combo is in turn connected to the collector of a transistor labeled "PIN OUT". It didn't appear to be perfect layer wound...but it certainly isn't now!
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    #2
    Re: Broken inductor...to rewind or not to rewind, that's the question.

    Seems to be an LC oscillator but Im not quite sure.

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      #3
      Re: Broken inductor...to rewind or not to rewind, that's the question.

      Looks like the worst that could happen is really screwed up pincushion.... Im gonna give it a go. DC resistance is 4.8 ohms so at least its not shorted.

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        #4
        Re: Broken inductor...to rewind or not to rewind, that's the question.

        Have you checked Encompass Parts for a replacement?

        Depending on the age of the set a replacement might result in you pulling less hair out of your head .
        Elements of the past and the future combining to make something not quite as good as either.

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          #5
          Re: Broken inductor...to rewind or not to rewind, that's the question.

          >>DC resistance is 4.8 ohms so at least its not shorted.<<
          Maybe.
          Resistance will not show a shorted turn or 12. Ringing will.

          If this is a bobbin wound coil with no "pattern" to it, you might be okay.

          I'm surprised Wizard hasn't been here...
          veritas odium parit

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            #6
            Re: Broken inductor...to rewind or not to rewind, that's the question.

            as krank says, try to find replacement...if you can't, then think about other options...

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              #7
              Re: Broken inductor...to rewind or not to rewind, that's the question.

              Originally posted by Toasty
              >>DC resistance is 4.8 ohms so at least its not shorted.<<
              Maybe.
              Resistance will not show a shorted turn or 12. Ringing will.

              If this is a bobbin wound coil with no "pattern" to it, you might be okay.

              I'm surprised Wizard hasn't been here...
              Im surprised he hasn't either. At least its not a dead short..... which would definitely kill the TV

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                #8
                Re: Broken inductor...to rewind or not to rewind, that's the question.

                TV has other issues....vertical IC is dead. On the bright side.... the new HOT and flyback are working and the set is alive enough to blink out some diags codes on the front panel.

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