[sdiy] Factory patterns for Drum Machines

[Colin f]

> If it helps, I have a version 1 ROM machine, and so can do a factory reset
to
> restore the patterns, but I don't recall ever getting the 909 to talk sys
ex
> (although the midi chart says it can, there's nothing in the OM).
> Do you know the procedure?

The sysex details are in the service manual.
The 909 has no method by which the user can initiate a dump from the panel.
A host computer has to send request strings.
There are details on how to take a full dump using MIDI-Ox here:
http://www.colinfraser.com/tr909/909-sysex-howto.txt

I didn't think to take a dump of the default patterns before installing the
v4 ROM, so I can't easily extract them.

Cheers,
Colin f