effect knobs problem

Hi,
i have a poblem with my mpc 2500. basically the fathers of "Q1" and "Q2" don't work at all... probably something happened when i took it with me when i was travelling with it..
also the "Q3" doesn't work most of the times...
The "Q4" knob is the onley one that works properly, even though just a few times also this diddn't work straightaway.

hope to have some help as soon!!

thanks

john

i've had the same issue for like 3 years. . . You can buy this http://www.mpcstuff.com/akai-mpc-2500-q-link-slider-pcb-b.html.

If i know how to desolder i would try to fix the issue.

Meh it's just qlinks. . .