Question about Onkyo TX-SR605 Receiver

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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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Re: Onkyo HT-R501 7.1 reciever issues

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.
*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

Re: Onkyo HT-R501 7.1 reciever issues

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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Re: Onkyo HT-R501 7.1 reciever issues

I have the same problem with a onkyo tx ds494

Posted on Sep 11, 2008

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Onkyo ht-rc180 standby light blinks will not start.i tryed factory reset, still blinks

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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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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Sr576 standby light blinking

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 You may contact me there. Thank you.

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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

Dec 19, 2009 | Onkyo TX-SR605 Receiver

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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1 Answer

Power will not stay on

Activated protection circuitry means that the amplifier is seeing conditions it does not like and is shutting down the power to prevent further damage.
Either you have a short in your speaker wires, in your speakers, or a blown amplifier.
Disconnect both speakers and turn on the amplifier. Does it still give the error message? If it does, your amp is blown. If it does not, carefully inspect your speaker wires and their connection. Make sure all looks good and reconnect the speakers and try it again. Still get the error message? You likely have a problem in your speaker cabinet(s).

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Onkyo tx-sr500; power goes out; standby light blinks

Remove all Wires form speakers
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appears Clear on display

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1 Answer

Standby button flashing

Re-Onkyo :

I'm not an owner of Onkyo but in my Denon owners manual it mentions
"reainitialization of microprocessor" basically resets all to default .
Not sure if your reciever is new just out of the box or used ?

Just a bump in the road

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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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