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Relay issue on Onkyo amplifier

Clemhxc Posted messages 8 Status Member -  
baladur13 Posted messages 47315 Registration date   Status Moderator Last intervention   -
Hello everyone! I need a bit of help. I've been the proud owner of a vintage Onkyo Integra A-807 amplifier for a little over 2 months, but all of a sudden it started acting up.
Let me explain:
When I turn it on, the output relays no longer "click," and I have to change the output to select or reselection the aux-1 output, and there the relays "click" and the amplifier works. However, this is the only output that works out of the other 7 available!
Additionally, if I want to turn it off on a
"defective" output, it takes at least 10 to 20 seconds to shut down.
The problem is that if the relays were dead, wouldn’t all the outputs be shot?

If someone could help me diagnose the issue, that would be really nice!

Thank you!
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1 answer

  1.
    baladur13 Posted messages 47315 Registration date   Status Moderator Last intervention   14 386
     
    Hello,

    Are you talking about output relays?

    There is a rotary selector that allows you to choose between the different inputs.

    This device seems to have some issues with that selector sometimes.
    Here is a video showing how to clean it for an equivalent model, the A-809.
    https://www.youtube.com/watch?v=QPAxNRFFH8I

    For your information:
    the service manual (schematic)
    http://www.vintageshifi.com/repertoire-pdf/pdf/telecharge.php?pdf=Onkyo-A-807-Service-Manual.pdf
    The manual (English)
    http://www.vintageshifi.com/repertoire-pdf/pdf/telecharge.php?pdf=Onkyo-A-807-Owners-Manual.pdf
    3