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CRT Tv sound issue

Discussion in 'Troubleshooting and Repair' started by Mr.fix it_101, May 27, 2015.

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  1. Mr.fix it_101

    Mr.fix it_101

    Apr 11, 2015
    HI guys!!
    I am working on a Samsung TV that is giving static sound output but no audio from the tuner. What could be the likely cause of this? picture shows well but only static sounds are heard :confused:
  2. ramussons


    Jun 10, 2014
    If the picture is fine, the problem is likely to be in the audio subcarrier pickoff filter (4.5 MHz or 5.5MHz) and the following FM detector.
    Mr.fix it_101 likes this.
  3. Mr.fix it_101

    Mr.fix it_101

    Apr 11, 2015
    so How do I go about resolving it? do I replace the tuner? or the current one can be fixed?
  4. Mr.fix it_101

    Mr.fix it_101

    Apr 11, 2015
    Ok, I just replaced the tuner with a new one and the audio now works. but I would have liked to know if the old one was repairable, and how to do it. But thank you @ramussons for the response, it helped
    davenn likes this.
  5. davenn

    davenn Moderator

    Sep 5, 2009
    well done :)

    with a bit of work and a decent oscilloscope you may find the fault with the old tuner unit
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