Archive of the former Yahoo!Groups mailing list: Discussion about the Korg PolySix synthesizer

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Subject: Re: [PolySix] Polysix frying mixer channels

From: Ben Stuyts <yahoo@stuyts.nl>
Date: 2018-09-04

This just means that the leakage is not big enough to trip your RCD. So maybe the leakage is low enough that it is not a lethal hazard. Rmember, these are old synths, and problems like this can only get worse. I would definitely check where the leakage is coming from.

Ben


On 31 Aug 2018, at 19:13, Peter Foley petereugenefoley@gmail.com [PolySix] <PolySix@yahoogroups.com> wrote:



With the grounded cable, I’m not measuring any AC anymore. Would this mean it could be an issue in my mains? My house was built about a hundred years ago...

On Aug 31, 2018, at 11:52, Ben Stuyts yahoo@stuyts.nl [PolySix] <PolySix@yahoogroups.com> wrote:

Peter, this solves the grounding problem. But not the leakage which should not happen. (At least, not in that amount.) There is still a problem lurking inside there.


Ben


On 31 Aug 2018, at 14:52, Peter Foley petereugenefoley@gmail.com [PolySix] <PolySix@yahoogroups.com> wrote:



Putting a grounded power cable in the synth did the trick!

On Aug 31, 2018, at 07:20, Malte Rogacki gacki@gacki.sax.de [PolySix] <PolySix@yahoogroups.com> wrote:

One possible suspect could be the spark killer.
If I remember correctly this was also a problem with some Akai devices?

And yes, please be very careful.

In theory, if the grounding isn't damaged (and the house grounding is ok),
something like this should not be possible at all.