Question about Onkyo TX-SR500 Receiver

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Onkyo TX-SR500 loosing settings

Hi guys,

my Onkyo TX-SR500 loose all the settings I make when it is off (not stand-by) for a week. This period is getting shorter. Is there anything I can fix? Is there any backup battery to be changed or so?

Thank you in advance

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  • Anonymous Oct 16, 2008

    I had a similar problem.When the power goes out the settings are lost.I now have another problem in regard to speaker balance.When the setting is adjusted and reciever left on stand by mode when turned back on it reverts back to old setting.

  • cooked1 Oct 16, 2008

    i had a similar problem when the power was lost.I now have another problem if i adjust settings turn reciever to stand by then turn it back on it reverts back to previous settings

  • david310572 Dec 06, 2008

    I have an Onkyo 601E A/V receiver which is suffering the same issue. The power is *not* swiched off but it is put into standby mode overnight. All the settings are lost from time to time. Turning the power to "off" at the switch does not cause a reset by itself. The time between these "resets" is also getting shorter.



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Turning any receiver off will erase the settings - there is no backup battery (Onkyo uses Battery Free Memory Backup) and the length of time depends on the capacitor charge. Why not just leave the receiver plugged in? Stand-by mode uses a negligible amount of power - enough to keep the capacitors charged and the LED on the front panel on.

Posted on Jan 28, 2008

  • Nisei Aug 29, 2011

    I always turn off my TX-SR602 (not stand-by) and there have been times that it hasn't been turned on again for weeks (perhaps even more than a month). I can hardly believe that the power left in the capacitors would keep the settings for such a long period of time.



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