Ahh man, I went to practice the other day and when i plugged in my jag bass, it just started making this high pitch squealing noise. I messed around with it a little more and it turns out, the switch that controls the rollers is smashed ☹. It still switches them on and off, but in the on position, moving the treble roller makes an awful high pitch noise, and moving the bass roller puts out a large blurb of noise, which actually sounds good through my envelope filter 😛.
Anyways, do you peeps think I should buy a switch and replace it myself, or take somewhere to have them do it?