Service info is here: http://www.korganalogue.net/korgms/service/ms20/m20s.html For the LFO specifically look for the block labeled 'Modulation Generator' in this schematic: http://www.korganalogue.net/korgms/images/service/ms20/circ1.gif -Dave J P wrote: > Hey Guys (and Gals?) > > Can someone point me to an MS-20 LFO schematic? > > Jonathan P