Question about Onkyo TX-SV373 Receiver

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Amp keeps switching off

Hi ive got an onkyo tx-sv373 and i got home from work today and turned it on and after about 1 second it switched off and the stand by light started flashing and now this is all that happends every time i turn it on, can anyone help

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  • Anonymous Nov 09, 2007

    Onkyo TX-SR804 7.1 Channels Receiver does not stay on. It automatically turns off within a second after I turn it on. Happens everytime now......TJ

  • grcub4me Nov 18, 2007

    hi ive got an onkyo tx-sv373 and i got home from work today and turned it on and after about 1 second it switched off and the stand by light started flashing and now this is all that happends every time i turn it on,
    can anyone help

  • Candyk Feb 27, 2008

    Our receiver keeps blowing a fuse and stays in Standby! Does anyone have any suggestions as to the problem.?

  • Eastcoastron Mar 21, 2008

    I have the same exact problem. Has anyone had theirs repaired, I was wondering how much it cost to fix? Thanks, Ron

  • Norsch Nov 20, 2008

    Power on ... charging condensators ... after very short delay:enters std.by-mode with blinking LED.

    Prior to the issue; Exposed to some heavy use in a 5.1 speaker configuration, though working after this.

    B-Speakers also connected though not engaged while incident occurred.



    Schematic for this with measurepoints and reference voltages -anyone?

  • lalala848 Mar 05, 2009

    I forgot why i put the receiver in the closet: its "power off" mood swings.  I've noticed that when the stand-by light is flashing, it's in one of it's moods.  Once light stops flashing, e.g. three days later, the receiver will work... for awhile.


  • wetztv Apr 18, 2009

    My Denon AVR-1600 amp simply shut off last night.  Came back on for awhile then quit again.  Power light still on.  Any ideas?  Should I fix or trash?

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  • Master
  • 3,130 Answers

There is a problem with one or both of the audio amp circuits. The amp is going into a protect mode as to protect and save your speakers. Sorry but there is no simple fix. this will need to go to the shop to be diagnoised. Good Luck

Posted on Apr 29, 2007

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Posted on Jan 02, 2017

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(possibly Zone 2 activated)

ELSE...

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Manual... page 5

http://www.intl.onkyo.com/downloads/manuals/pdf/tx-sr507_577_manual_e.pdf

Hope this helps

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