Emu XL-7 & MP-7 User's Group

Hi all,

I have an MP-7 on which several buttons have stopped working (the 
most used ones are Save and trigger #6 - because it's direct access 
to the filters in patch edit mode). I thought of taking it to service 
center, but since it's in another city, I never have the time to go 
there; besides, being E-Mu official service, they probably charge a 
fortune. I'd never venture to open the device myself, but Aaron 
mentioned in a recent post that it should be possible to take out the 
buttons without taking the case apart. This got my hopes up that I 
might be able to fix the buttons myself, but first I'd like to ask 
for advice from this fine community. Assuming I manage to take the 
buttons out, how do I clean the contacts? Is there anything to clean 
at all? I mean, if the contacts must be replaced anyway, service 
center is my only option.

thanks in advance!
Boris.