The Yamaha AN1x Synthesizer mailing list

Op 21-7-2013 19:26, klindblo schreef:

> - 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?

Yes, stop hitting your synth. :)

The AN1x, for some reason, has a daughter board that does the second 
half of the 10-voice polyphony. There's a chance that this somehow got 
dislodged. I have no idea where this daughter board is, but there's 
probably just a bunch of chips on it (at least one of them big and 
labelled Yamaha) and nothing else. Try setting it again.

- Peter