[sdiy] Looking for Pearl Syncussion SY-1 schematics and more

[Synthusiast]

Hi list,

My recently acquired Pearl Syncussion SY-1 seems to suffer from a filter
problem on one channel. Does anyone of you have schematics of this unit? A
user manual would be great too. And the shaft of one of the 3-way switches
has broken off. I already looked in various electronics catalogues, but I
haven't found a suitable switch yet. Any hints on a replacement switch would
be appreciated.

TIA,
Martijn