Polysix / Poly61 midi retrofit and feature extension
Analoge modification kit for Korg Polysix
Repairs and customizations
Tubbutec blog

Recent Posts

Replacing Polysix buttons

A lot of Polysix’s I worked with had worn or even broken push buttons. As the Modysix mod makes use of five Polysix buttons (POLY, UNI, CHORD, HOLD, ARP), the workflow will also be dependent on the quality of these. If your buttons are sticky or very hard to push, I recommend replacing them.

This is how to do it:

Step 1:

Take off the panels with the buttons KLM-371. You need to remove the arp knob, and the brass screws on the back.


Step 2:

Desolder the four pins of the button and the two led pins. You can now take out the button. Sometimes it helps to wiggle it a bit until it comes lose.


Step 3:

Replace the button with a replacement, it should fit perfectly. You can now solder button and led back in.


  1. Polysex + Kiwisix video Leave a reply
  2. Korg Mini Pops synced to midi clock Leave a reply
  3. Modysix Update Tool Leave a reply
  4. Modysix version 1.4 Leave a reply
  5. Happy new year ! Leave a reply
  6. Utilising the 2nd Modysix CV out Leave a reply
  7. Unison mode for Korg Poly-61 Leave a reply
  8. Modysix and Polysex in Synthmag Leave a reply
  9. Polysex example Leave a reply