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.