Hi Folks. I´m a proud new owner of an Korg M/P, but it has got a Problem.
The Led´s on the 4 VCO do not work.
It also seems to behave a little odd sometimes with the assignment of the Voices to the VCOs but i don´t know. could also be normal. I will analyse it further and then tell you more about it.
But to the Point with the Leds: Where would be a good Starting Point for Troubleshooting
Any Tips
I was also not able to locate those Leds in the Scematic. Maybe because the Part where the VCOs are drawn has bad Detail Quality in the Scematics.

-Voltages seem ok so far (except -15V is @ 14,91V and in the Service Manual there is stated something about +- 0,01V). I Guess that would not cause the VCO Leds to fail.

Best Regard - Juppdich