Vintage Synth Repair

>I have a Kurzweil MicroPiano that used to play great, then one day it
>started sort of "swallowing notes" -- it's lost a bunch of voices so
>that now after maybe 10 notes it starts cutting off the first notes
>it played.

Typically this isn't caused by a hardware issue, probably all sounds are 
generated on a single IC, if something goes wrong it just all dies at once 
rather than losing polyphony.

It's likely either a poorly-chosen setting (multitimbral allocation of 
voices?  accidental layering? a midi cascade function for using multiple 
modules together?) or just a software malfunction (reset it).

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