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

When I turn the DATA wheel fast towards any direction the value I'm 
trying to edit seems to "jump".... Perhaps if I should explain it 
like this: The value is 64, I want it to be 0, so I rotate the data 
wheel, and suddenly it says 127 or anything...

Very strange. No, I did not rotate the data wheel in the wrong 
direction.

Something wrong with the encoder? No idea. But it's getting worse. 
I'm thinking about trying to making an XL-7 mod, changing the data 
wheel to another one.

The warranty period is over anyway... so why not?

Any suggestions? What components should I look for in order to 
repair / change the data wheel?

//Nifflas