As promised, here’s the hard-to-find manual for Yamaha’s last Vector synth.
Yamaha sent it to me as 4 separate PDFs (Service Manual, MIDI Implementation, Parts List, Expanded big PCB pages), plus a monster-sized TIFF of the schematic. They didn’t want anything for it, and they didn’t ask any questions. I assembled the files into a single PDF, then used the the web-based Compress PDF to reduce the file size (to 6.5 MB, down from about 12 MB).
The MIDI implementation section provides the most detail about the sysex data scheme (including the hidden FM parameters) than any SY22/TG33/SY35 document I’ve seen so far. I mostly understand it now, but I still haven’t figured out where the “algorithm” bit is (which allows you to set the FM portion of a patch to be two carriers, each with the 8 TX81Z waveforms available). Anyone got any knowledge of that?
Download the service manual (pdf, 6.5 megabytes) here: