OBERHEIM SYNTH

Hi all,

I had a perfectly functional OB-Xa which I turned on today and now I get no sound.  After turning it on the Patch 1 light blinks several times (like a bad voice in auto-tune would blink) and then nothing happens.

LEDs are lit on the board, but pushing buttons does not do anything, meaning none of the functions work, pressing any buttons won't make them light, etc..).  No sound comes from the outputs.

Any ideas?

Thanks in advance,

Tim