Korg Forums

sgroovez · Joined: 08 Aug 2011 Posts: 6

SV-1 88 when I power up, I have a buzzing that sounds like an airplane or a helicopter in the distance. I am not able to hear this on the headphone output, but notice it on the 1/4" and XLR outputs. The noise is masked once I start playing. However it is an underlying noise WAY low, but I would like to get rid of it!Anyone have any ideas?

Thanks for your help

gregpoulos · Joined: 10 Sep 2011 Posts: 2

I have the exact same problem.

If I go XLR or 1/4" line out into my MOTU 8pre to record, there is an annoying, low buzz/hum present the entire time, regardless of which sound is chosen. You can see this noise visible on the waveform.

Same problem using the same outs going to speakers.

However, no noise via the headphone jack.

I have a Nord Electro 3 also and it exhibits ZERO noise.

Any ideas?

thanks,
Greg

sgroovez · Joined: 08 Aug 2011 Posts: 6

I thought that it wasn't in my headphone jack as well. So I checked into it, plugged headphones in and cranked the volume. I heard the noise there as well. I believe that there is a grounding issue somewhere. I am in the process of recording the noise and sending it off to Korg to see what can happen. It is weird that this just started up however!
I work in a music store, we have a Korg SV-1 with 73 keys, and it is quiet as ever! Weird. When I hear something I will post to let you know.

sgroovez · Joined: 08 Aug 2011 Posts: 6

I sent some audio files to Korg. They told me that it sounded like a grounding issue, and that I need to take the SV1 to a authorized repair center to have it serviced. I am hoping that this can be taken care of quickly and that the job is easy....fingers crossed...time to backup the SV1!