Pioneer SX-503s series diagnostics sequence

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  • Ponchojack
    Member
    • Mar 2020
    • 15
    • United States
    #1

    Pioneer SX-503s series diagnostics sequence

    Anyone out there know the button sequences to run diagnostics/error messages for this series of receivers? I know the sequences for the later AVR receivers.

    There is nothing in the service manual. I think I've determined holding the power button down while you plug it in seems to over ride the protection mode since I can hear the relay click, but not sure.

    The owner thinks this unit might have been impacted by a lightning strike.....ugh.

    Standby power seems fine. Next stop is to disconnect the power amp if I can't find the diag.

    Poncho
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