Question about Onkyo TX-SR604 Receiver

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I have my Onkyo hdmi channel 2 using sonos as source and connected to house speakers. It seemed to be no problem for a couple weeks. Now it will frequently suddenly shift into standby. If I reset it may resume playing for minites or hours and then suddenly go to standywith blinking red.
Thanks alot for any help.

James King

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  • heartman Nov 24, 2007

    The suggestion from Fixya consultant that there might be a mismatch of speaker ohms and receiver tipped me of to check the niles speaker selection box and sure enoufg tne protection switch was off. In playing 2 or more combinations of 4ohm speakers the protection button on speaker selectionbox must be on.

    As more pairs of speakers are parallel connected to a rec/amp, the overall impedance becomes lower. ex, if 2 pairs of 4-ohm speakers in parallel becomes 2 ohms and so on with multiple pairs of speakers. Most multiple speaker switches such as the Niles ss-4/ss-6

    corrects this problkem to assure a safe operatring load.


  • heartman Nov 24, 2007

    Thanks to the Fixya consultant tip that there may be an impedance mismatch of speaker ohms to rec/amp ohms I checked the multiple speaker selection box and sure enough the protection button had been accidently swithed off which was creating the problem.

    Amp/Rec Impedance Load

    As more pairs of speakers are parallel connected to Rec/Amp the overall system impedance becomes lower. Ex, 2 pairs of 8 ohm spk connected in parallel, impedance will be 4 ohms; 2 pairs of 4-ohm spk connected in parallel become 2 ohms, and so on. The

    Niles SS-4/SS-6 speaker selection boxes includes circuitry that assures a proper load with all speakers playing simultaneously WHEN TURNED ON. Thanks again.




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Check the Ohm value (4, 8, 16...) on the speaker and on the ONKYO too.
If not the same that is the (big) problem!

Posted on Nov 24, 2007


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Onkyo TX-SR605 Remote Codes

Download Onkyo TX-SR605 Remote Codes
4 Digit Onkyo Remote Codes

Models: RC-682M / TX-SR605 / TX-SA605 / TX-SA8560


Have you misplaced your Onkyo TX-SR605 Remote code list / Owners Manual?

Would you like a digital, searchable, pdf version of the Onkyo TX-SR605 Universal Remote Code List Users Guide?

Follow this link to download a pdf version of the operations manual.

I hope that helps.
Download Onkyo TX-SR605 Users Manual Here.

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Not sure what unable to connect means..but I will assume you have the correct cable.

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