KR-7050 humming

Discussion in 'Kenwood-Trio/Kensonic-Accuphase' started by JRW, Sep 12, 2017.

  1. JRW

    JRW New Member

    Messages:
    22
    Location:
    Austin. TX
    I have noticed a hum coming from the receiver after it has been running for a couple of hours. It is not coming from the speakers. I switched to aux and turned up the volume and it did not get louder. If I turn the receiver of for a few minutes and turn it back on, the hum is gone. Is it fatal?
     
  2. Duffalora

    Duffalora AK Subscriber Subscriber

    Messages:
    214
    Location:
    Auckland, New Zealand
    More information needed. Does the receiver hum after a couple of hours if the speakers are disconnected? Or can you hear a hum through the speakers that is not affected by volume?
     
  3. hopjohn

    hopjohn Kenwood Krazy Subscriber

    Messages:
    812
    Location:
    Dallas, TX
    What song does it hum? That'll tell us everything.

    Seriously though, it's likely the power supply. No, not fatal, but surely has old, dried out caps that are not working optimally. It's simply aged and it's in need of some work. I'd use something else until it could be properly serviced.
     

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