Question about Onkyo TX-SR605 Receiver

3 Answers

Onkyo HT-R501 7.1 reciever issues

My reciever has shut off and has a standby light flashing, when I turn power back on it powers up for a couple seconds and then shuts down with the standby light still blinking, I have tried to unplug and reset with no luck

what's up?

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  • jiitv Feb 01, 2008

    I have the same problem with Onkyo TX-RS805. I've tried pulling all the wires and cables off, waiting an hour, attaching the power cord and putting the thing back on, but it still goes back to standby immediately with the standby light blinking.

  • gskgk Mar 26, 2008

    Hi ... I got a TX SR-605 from US to UK. I have connected it to a 220/110 3Kw step down transformer. The amp blinks "Z2 Sel : Off" for a minute and goes into standby and never comes out of it.



    Has anyone had this kind of an issue. If so is there a solution.



    thanks a mite

  • coz2992 Oct 02, 2008

    I have an onkyo tx-r606 and I've had the same problem... I recalibrated it with the microphone and it solves it for a month or so. After that, back to the usual randomly cutting off... HELP!!!!

  • toronto20 Oct 13, 2008

    Tx-sr606 won't power up... click sound comes out of it bout every second and a half. How to bring it back to life? I have used it only for 2 weeks!!!

  • Anonymous Oct 14, 2008

    Onkyo TX-SR705 Shuts off when the volume is increased to a moderate level. I set the max. volume level to -5 but the unit always cuts off at -12 to -9 area.

    What can I do?


  • DaBears2005 May 11, 2010

    Can you guys share the cost of these repairs since you had to have it fixed? I'm having the same problem and want to know if it is really worth it.

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Follow these procedures
*disconnect everything (including ur speaker wires)
*power on the unit and hit the volume up to MAXIMUM. (this should output power from the receiver ) take note that u need to max the volume w/o anything connected.
*if ur unit shuts off w/o anything connected after maxing the volume...the receiver has to go in for service, but if it doesnt then u have to isolate the issue.
NEXT STEP:
*play something (the FM or AM) then connect one speaker at a time and max the volume on each speaker to know w/c speaker or w/c connection is causing the issue. (e.g. front speaker then max the volume, right speaker then max the volume and so on...)

Posted on Jun 24, 2009

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You have to get it fixed. same thing happened to my onkyo reciever and they said it was a bad circuit. had to take it to an onkyo tech and have it replaced.

Posted on Oct 15, 2008

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I have the same problem with a onkyo tx ds494

Posted on Sep 11, 2008

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1 Answer

My onkyo HT RC330 will not power up at all. Have had problems past couple of months with starting it but if you played around with swith it would start. Now nothing.


Try resetting the AV receiver To reset the AV receiver to its factory defaults, turn it on and, while holding down VCR/DVR, press 8 ON/STANDBY. "Clear" will appear on the display and the AV receiver will enter Standby mode.

It is possible that the protection circuitry has been activated. Remove the power cord from the wall.. Disconnect all speaker cables and input sources, and then leave the AV receiver with its power cord disconnected for 1 hour. After that, reconnect only the power cord and set the volume to maximum. If the AV receiver stays on, set then the volume to minimum, disconnect the power cord, and reconnect your speakers and input sources. If the AV receiver turns off when you set the volume to maximum, disconnect the power cord, and contact your dealer.

If the standby light is lit it and the unit will not boot it is most likely that the protection circuit has been activated. If there is no standby light then check the fuses. These units check that the power supplies are operating near specification. If a capacitor or resistor in the circuit, or a broken solder connection the unit will shut down. Because of the temperature the thermal cycling around the power supplies a broken solder joint can occur. This will make for an intermittent operation.

Hope this helps.
26289825-owoa52fq3dbvw0lom3ojbzgr-3-0.jpg Failed resistor or capacitor


26289825-owoa52fq3dbvw0lom3ojbzgr-3-2.jpg

26289825-owoa52fq3dbvw0lom3ojbzgr-3-5.jpg

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Onkyo AV Receiver TX-SR503 While sleeping with earphones connected, the receiver shut down and the standby light blinked. I unplugged the power cord, reconnected power and the receiver shut down...


Have you provided adequate ventilation?
May be your receiver is running hot and when there is loud volume it is obviously getting overloaded. There are no fans inside 674, the only way to provide good ventilation is to keep the top of receiver clear for atleast 6 to 8 inches.

Hope that helps.....

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The amp protection circuit has been activated. Remove the power cord from the wall outlet immediately. Disconnect all speaker cables and input sources, and leave the AV receiver with its power cord disconnected for 1 hour. After that, reconnect the power cord and reconnect an input and a pair of speaker wires onto the unit. If the receiver still does not turn on than you will have to bring it in for service. Turn up the volume and if the receiver doesn't shut down, power off the receiver and add another pair of speakers. Power up the unit again and turn up the volume. If it doesn't shut down, power off the unit again. Now connect all your input sources and turn on your receiver. If the unit shuts down again, your unit will need to be further serviced at an authorized Onkyo service center.

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Remote will no longer power on Onkyo HT-S3500. Once I turn it on manually, the rest of the functions work properly.


I just had this same issue. I tried to change the batteries for the factory remote that came with the Onkyo HT-S3500 (remote: RC-799M). Still no luck. It would not power on with the remote, despite the light flashing and the and all other remote function working. If I powered on the receiver manually, everything worked (except power on/off).
I just pushed a button on the remote labeled "REMOTE MODE RECEIVER" and viola, the remote now powers the device on and off and works just like usual. Not sure what the heck happened, but I would suggest pushing that button on your remote.

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1 Answer

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Most likely, you have DC Offset(a bad amplifier). The unit is shutting down to protect your speaker system, as well as protect the unit from any further damage. If you require more assistance, or would like to inquire about repairing your Onkyo, please visit my website at audioserviceclinic.com. You may contact me there. Thank you.

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Onkyo ht-r670 receiver is new and will not turn on. red standby light is on. but no display. also remote doesn't have any effect.


I would check any fuses first. The power transformer could also be open.There is a stanby supply that provides 5 volts that is always on . This is what supplys voltage for the standby light and the cpu. When you press the power button the cpu trips the power on relay that provides the 120v ac to the main transformer. If the transformer is open nothing happens. Onkyp part # is 2301798. Check the windings for continuity.

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Won't turn on.standby light on,fuse under cover is good.what next? onkyo tx-sr605


The only thing to test would be to disconnect all speaker wires at the receiver then turn it back on. If it still won't turn on, it's an internal power supply issue and will need service. If it turns on, post a comment and I can walk you thru further troubleshooting. Hope this helps

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1 Answer

My Onkyo HT-R510 will shut down after several


Might be over heating. Make sure you don't have anything sitting directly on top of it. I even put a little fan blowing outward at the back of my system to keep it cool.

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If you call Onkyo directly, 201-785-2600, there is a procedure to "reset" the system, something like holding the power button on and holding down another button for a few seconds. Can't remember which, so I can't be sure, but try giving them a call.

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Brand new Onkyo Tx-sr605 won't leave stand by


If the unit will not leave standby I would remove all power, disconnect *all* connections at the back, reconnect to a power source and try powering on. This will eliminate any connection causing the Onkyo to stay in standby due to a short. If it still will not enter power-on mode, you may want to look at the power source (is it properly grounded?), but beyond that the unit probably needs to go back.

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