First post, by Amdahl
If at first you don't succeed, push every button combination until you do. At this time, the manual can be found at ftp://ftp.roland.co.uk/productsupport/MT-100/ … 1_MT-100_OM.pdf
Roland MT-100 button combos that are somewhat useful:
Stop + BEAT/MEAS = Set THRU On/Off w/turn dial, then Execute. (Play MIDI IN, hooray!) You can use FWD/BWD to select other options as well. You can record this change to the saved settings(used during power-on) by holding the REC button while you press Execute.
Stop + Delete, then Execute = All Clear
Sound Control + Delete, then Execute = All Reset
Sound Control + Sound, then BWD or FWD, then Dial, then Execute = select patches for each instrument.
Sound Control + Volume, then BWD or FWD, then Dial, then Execute = select volume for each instrument.
Sound Control + Play, (Use the wheel to select a specific song) then Play = Plays a demo. (Stop or Play then work to stop or continue.)
I got the All Clear and All Reset from elsewhere on the web.
On USB MIDI adapters: I tried EMU Xmidi 1x1 USB MIDI interface w/MT-100 in WinXP with latest EMU drivers, and with only the Microsoft default drivers and SysEx did not seem to work. All music played with incorrect sounds.
I tried M-Audio USB Midisport Uno MIDI interface w/MT-32+MT-100 in WinXP and OS X. It worked fine with the default Microsoft drivers and in OSX. With the latest M-Audio Windows drivers installed, I got blue screens. If you know you don't need the M-Audio drivers, this seems to be a suitable device, although Amazon reviewers have noted a number of compatibility issues with other MIDI hardware.