Am 04.04.2019 um 10:54 schrieb mauro.tondini@... [korg_mono-poly]:

> A tipical situation when it happens is:
> Poly mode on
> Filter cutoff full open
> Vca envelope sustain maximum, release minimum
> Auto Damp on
> Trigger Multi
> The strangeness is that the holded  oscillator LED  switches off correctly
> Has anyone had this issue

The LED and the FET-Switch for the oscillator are fed by the same
signal. So the only suspicion can be the FET itself only. This would
require, that it is always the same voice, which shows this behaviour.

If not, then it could be, that the Auto-Damp-Switch does not work
reliably. You may try to clean the switch as a first attempt.

Florian

--

http://www.florian-anwander.de