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Over heated technics sa-g90

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Discussion in 'Audio' started by Morley, Jul 15, 2018.

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  1. Jul 15, 2018 #1
    Morley

    Morley

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    Jul 15, 2018
    My Technics reciever model sa-g90 gets very hot above the heat sink until the volume is turned up, then the fan comes on.
    Thanks Morley ,
     
  2. Jul 15, 2018 #2
    kellys_eye

    kellys_eye

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    Jun 25, 2010
    What makes you think this is a problem? Is it working properly otherwise?
     
  3. Jul 15, 2018 #3
    Morley

    Morley

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    Jul 15, 2018
    Thanks for your reply.
    I understand a lot of Technics reciever run hot, but on the top of the reciever above the heat sink you can barely hold you hand on it. This happens at lower volumes when the exhaust fan is not running. Comes on with higher volume levels.
    Morley
     
  4. Jul 15, 2018 #4
    kellys_eye

    kellys_eye

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    same question though........ so far unanswered!
     
  5. Jul 15, 2018 #5
    Morley

    Morley

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    Jul 15, 2018
    A friend of mine works in electronic repairs. He said this type of heat can fry some components and shorted life of others.
     
  6. Jul 15, 2018 #6
    kellys_eye

    kellys_eye

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    Jun 25, 2010
    :rolleyes:

    Some components, and the way they are designed/operated, simply dissipate heat..... providing that heat is within the design parameters of the equipment - which you STILL haven't revealed - then it's not a problem.

    It's 'inefficient'..... but that's about it. You 'may' have an issue with incorrectly set bias but until you confirm the actual system parameters and/or show a schematic, we'll never know.
     
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