Hello Kristofer !
Take a look at ANY connector inside , daughter board included.
Remove it, better clean the connector with an electronic contact cleaner
(KF or similar stuff), put it again firmly in its socket : done !
Looks likely to be a bad contact issue... or may be SEVERAL issues : the
"crackling sound" could be caused by a dirty or bad output jack too, the
missing notes are more likely related to another connector or ribbon
cable issue. And if the "missing part" is always on the 2nd voice it's
(90%) the daughter board connector that's messing.
I don't think it's a more "electronic" trouble, such as a bad or "near
dead" chip.
Cheers.
J.F.
klindblo a écrit :
>
> Dear All,
>
> I have experienced very strange behaviour from my An1x the last 4 months.
>
> - The sound is messed up (noise, crakling type.. or sound lost)
> - Some keys are not responding (repeated pattern of keys), but may
> respond on certain velocities
> - The noise or lost sound is almost always on the 2nd voice engine
> only (half polyphony for single sounds or missing 2nd part for dual).
>
> This may have started as I opened it to fix a broken key (which I
> succeeded with..)
>
> I have opened the unit again trying to locate any loose cables or
> similar, but haven't succeeded.
>
> Giving the An1x a hit from top solves the issue temporarilly.
>
> Anyone have any ideas?
> I really love this synth and would really like to fix this.
>
> Very Best Regards,
> Kristofer Lindblom,
> Sweden
>
>