[sdiy] Roland Filters / IR3R05

[Ullrich Peter]

>i wonder if the info on what is inside th IR3r05 chip is just lost forever, buried in some file cabinet somewhere! so sad the amount of SYNTH history that is going to be lost :(

The only information I found is a block diagram and pin description in the 
Roland Juno1 Service Manual on page 14: http://pidg.in/~taras/storage/juno/juno1service.pdf

Ciao
Peter

http://www.ullrich.at.tt
[My webpage is up again after it has been deleted due to an unknown reason...]