Is There a Thread Outlining Testing a Used Stereo Receiver?

Discussion in 'Solid State' started by JJCalvillo, Jan 13, 2019 at 9:31 PM.

  1. JJCalvillo

    JJCalvillo Active Member

    Messages:
    167
    Location:
    Portlandia
    May be picking up an “as is” receiver with plans of rehabbing it. This would be my first time and I wondered if a thread had ever been posted that tells how those with experience test a “new to them” unit.
     

     

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  2. awillia6

    awillia6 Super Member

    Messages:
    1,382
    Inputs, outputs, modes, controls, cosmetics.
     
    JJCalvillo likes this.
  3. ryuuoh

    ryuuoh FFXIV Summoner Subscriber

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    Location:
    Marina CA, USA
    If it's bought as-is, take the top off, and see if it's been worked on or has obvious damage. See if the fuses are good with a multimeter. See if the controls move properly. If all that looks good, power it up and see what you have. Check the speaker terminals for DC voltage. This should be in millivolts. Check the DC Offset sticky at the top of the forum to learn more.
    If all that is good, connect either speakers or headphones and a source and see if you have sound. Operate tone and balance, volume, see if you have static or dropouts.If you have noise, see the De-Oxit guide to learn more.
    If everything more or less works, find a service manual and investigate checking the amplifier bias setting and DC offset. Don't do any adjustments until you understand how to connect the test equipment and make the adjustments.
     
  4. JJCalvillo

    JJCalvillo Active Member

    Messages:
    167
    Location:
    Portlandia
    ryuuoh and awillia6 thanks for your response.
     
  5. dlucy

    dlucy dlucy67 (Doug) Subscriber

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    Philadelphia, PA

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