The Yamaha AN1x Synthesizer mailing list

Haha, got your attention I can't resist...Nonono, not the weed, folks,
I'm looking for a *potentiometer* part for my AN1x...my "Knob 4" pot
is going crazy...Everytime I turn my AN1x on, the "Knob 4" control
pops up on the LCD and the values go haywire (alternate quickly
between random values). Doesn't bode well when "Knob 4" controls some
parameter.

I think the pot got busted when I used to transport my AN1x in an old
keyboard case and the foam wall pushed into Knob4. Anyway, I've opened
up the AN1x before and I've come to the conclusion that the Knob4
potentiometer needs to be replaced. So where can I buy this part from?
Does Yamaha still sell them? Or do I have to buy it from someone with
a broken AN1x (or CS1x/CS6x)? Has anyone had this problem before. 

Please no stoner jokes, I'm serious, I need to find this replacement part.