Question about Onkyo TX-SR506 Receiver

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Buzzing/vibration noise - ONYKO TX-SR506 amplifier

Hi there,

I have recently purchased a ONYKO TX-SR506 amplifier. All speakers are connected but when I switch on the actual unit itself it emits a buzzing/vibrating sound. We have tried moving it but is is still there.
When volume is turned up is covers up the noise but it is still there and is annoying.

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  • Anonymous Mar 02, 2009

    I have the same problem. Right now I don't have my rears set up so I'm currently set up with a 3.1 config (3 in front and a sub). As soon as I turn on the unit I get a loud buzzing sound. I thought it was a fan at first, but it doesn't seem that way.

  • Anonymous Apr 06, 2009

    I have the problem as well, the weird part being that it definitely wasn't there a few weeks ago. The hum (if it sounds like mine) is a problem called an earth/ground loop, where the receiver ground and the grounding on whatever you've got plugged into it as an input source are different grounds, so different that they are producing a current (i.e. that "humming noise"). Here are a few things normally done to fix this:

    1. Plug the receiver into the same power-strip as whatever input device you're using is plugged into. So if you're using a PS3 plugged into a power-strip, plug the receiver into the same power-strip.
    2. Check to make sure the power-strip itself is grounded. The grounding pin on a plug is the long round pin, the bottom pin of the 3. If your power-strip doesn't have one then your strip is very old and it's time to upgrade. No worries, they're cheap.

    I'm still here with the humming noise because neither of those two worked for me. Granted, earth/ground loops are very tricky things, and what didn't work on my TX-SR506 may work on yours.

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  • 4234 Answers

SOURCE: Buzzing/vibration noise from ONYKO TX-SR506 unit

If the unit is under warranty, DO NOT open it up. Bring it in for an exchange or warranty service. Explain that the unit makes noise during use and it will be serviced. This could be as simple as a bad connection in the power supply area and you are hearing oscillations or it could be a defective power transformer. Either case will be covered under warranty so there should be no charge to you.

Keep us posted.

Dan

Posted on Feb 17, 2009

  • 206 Answers

    Verified Fixya Pro

    SOURCE: Buzzing/vibration noise from ONYKO TX-SR506 unit

    The issue is that when you hook up the HDMI connector (Only) from a source into the receiver the subwoofer will produce a audio hum if the source is either not playing or in a pause state you will hear the hum. Once you remove the HDMI connection the humming disappears. Again the UPDATE will reduce it 90% but at a high volume you can still hear the hum come out of the subwoofer and you know that if the customer knows about it they are going to be looking for it after the update. So at this point after the UPDATE you will hear some hum because the receiver is still processing a signal through the system. But at normal listening it's not going to be producing any humming, just your normal bass signal is going to be produced.

    Please contact our Parts & Services Dept at the number listed below during normal business hours Monday-Friday 9am-5pm EST ; or via email at parts@us.onkyo.com. They can be contacted at 201-785-2600, option # 4 for Parts & Services as they can further assist you regarding warranty and service issues. You will need to speak with the Parts & Services/ Warranty department for any servicing options or resolutions available for your issue.

    Posted on Apr 17, 2015

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    If the unit is under warranty, DO NOT open it up. Bring it in for an exchange or warranty service. Explain that the unit makes noise during use and it will be serviced. This could be as simple as a bad connection in the power supply area and you are hearing oscillations or it could be a defective power transformer. Either case will be covered under warranty so there should be no charge to you.

    Keep us posted.

    Dan

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