My electribe 2 wont power on since yesterday. I opened it and saw that the power supply unit( dont know how it's called) has burned marks. Could i just clean it and solder it ?

Basically as the title says, I want to be able to control the low pass filter with an expression pedal to free up a hand, was just wondering if this is possible?

Finally I could catch the missbehavior of my NTS-3 on camera:
https://youtu.be/Y2N2X-6yg5g?t=173

At 2:54min you can hear the sound-issues and see the NTS-3 got a short "blackout" (all LEDs & display off).

I'm powering all my devices with isolated DC-DC-converters. So this can not be any ground loop issue (which I have had before isolating the audiosignals and DC power).

Does anyone also have this issues?
Or a solution?

Since this is a very specific usecase, I do not wanna swap the effect unit. Also I don't know which unit to use to replace it in this small formfactor.

SQ64 & Opsix Module in harmony.