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Potentiometer humming 2017-01-09T10:39:55+00:00

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  • Grant
    January 9, 2017 at 10:39 am
    Post count: 0
    #11509 Reply |

    On my Drok TDA7297 amp, when I touch the potentiometer it hums very loud. Does the potentiometer need grounding? How do I fix this.

    Thanks

    Grant
    January 11, 2017 at 1:39 pm
    Post count: 0
    #11527 Reply |

    Anyone?

    Grant
    January 13, 2017 at 7:16 pm
    Post count: 0
    #11556 Reply |

    This is the amp

    https://www.amazon.co.uk/dp/B00H1O4ZOA?psc=1

    Drok
    Keymaster
    January 15, 2017 at 8:14 am
    Post count: 2971
    #11584 Reply |

    Hello Grant,
    Thank you for your information.
    If the noise only arise when you touch the potentiometer.
    You may have touched its metal part. When the body induced current is connected with the metal part, the noise will arise.
    So please try to just touch the plastic part of potentiometer to see whether noise still arise.
    Any more question, please feel free to contact us.
    Best regards.

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