Remodel causes 60Hz ground loop


Friend remodeled kitchen and when he reconnected entire system, as it had been disassembled and out of harm’s way, he inherited a ground loop.  Small apartment, so moving to another room is not an option.
Only the music server is affected.  Vinyl playback not affected.  Runs everything through Furman 15i Elite conditioner.

Any ideas about approach for ridding the system of this?  Thanks in advance.
celtic66
Only the music server is affected.  Vinyl playback not affected.

And the problem is....?
Is there a coaxial cable connection involved somewhere?  From a satellite dish, or cable in? 
Indeed there is a coaxial cable connection for his cable.  No satellite.  I’ve been researching that aspect and you may be on to something.
Aha! :)

So, you can use a cable TV isolator.  Relatively cheap.

https://amzn.to/3f6ziSG
What probably happened is that the re-model fixed a missing safety ground.  When that happened, a ground loop formed for the first time between the cable TV connector and the system.

Best,
Erik
Thank you.  I will pass this on to my frustrated friend.  Cheers
Welcome.

I should say that the test is really simple.  Unplug the coaxial cable while listening to the DAC.  In many cases you don't even have to be playing music because the ground loop is there as soon as the DAC is selected.

Best,

Erik
@erik_squires ,
Great post. I never would have thought of that.
In fact, it might be the source of a buzz that I have in my office system.
Bob
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@fuzztones

Yeah the isolation transformer may work, but if you can fix the cable TV or satellite TV cable, you avoid adding anything after the DAC.
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Only the music server is affected.  Vinyl playback not affected.  Runs everything through Furman 15i Elite conditioner.

Any ideas about approach for ridding the system of this?

No, because its not the system. Its the server.

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My friend responded that these posts reminded him of the electrician commenting about improper grounding during the remodel which he then addressed.

He has ordered the Jensen transformer, so we’ll find out soon enough if that is the answer.  Thank you for all of the follow up.  I will post results.
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Not my abode, so I’ve really no idea about some of these questions.  I’ve forwarded this link to him so he can sort it out.  Cheers
Thank you to all who contributed.  My friend reports the Jenzen transformer isolator thingee worked like a charm on his cable TV and completely quelled the demons of 60Hz ground loop Hell.  Cheers