If you have a Nanogris please update your boards. R31 needs to be replaced to 10k value. This resistor was wrongfully marked as a 100k value in the BOM. Thanks to Erik Mast for noticing and reporting it.
Resistor R31 is the same as R8 from the original schematics (bottom-right). It will calculate the reference voltage for the potentiometers. Replacing R31 only to 10k will give the pots the range they where intended with by Mutable Instruments.
This fix will result in:
- max value on the speed pot. making it run more smoothly/slower. (better range)
- potentiometers in the settings menu work