Sequential circuits samplers

john's right- you, or a competent tech, should check the 12s & 5s
inside the beast... the power supply is extremely rudimentary compared
to the switched-mode supplies used in later samplers & synth modules.
hopefully you will have fried a regulator at worst, though there's
always a chance of worse damage if a conector has been reversed by
accident. I killed a disc drive this way in a cheetah sx16, but that's
another story... :-)

duncan

(ps I'm still looking for a keyboard controller IC if anyone has a
terminally ill 2000)