Preface: (Remember the trimmed down M1 rack was M3 which creates some confusion. )A 120 oscillator 60 or 120 voice synth with hardare designed around Oasys HD-1 technology. Touch screen and a lot of features looking like an enhanced Karma pretty much. More chord memory buttons and the scene level knobs of course. 8 Sliders, 8 Switches, Joystick, Ribbon Controller, 8 Velocity Sensitive Pads and X-Y Touchscreen performance control. 64 Mb - Expandable to 320 Mb with optional EXB-M256
Can't recall seeing anything but broken keys and maybe a cracked board with these.
I have no specific parts for these units except keys I think but contact me if you need repair.