Source Gone Haywire

[Abby Wyers, David Sage]

Hello,
  Sean Costello directed me to your address for a question about a Moog "The
Source" synthesizer.
    I have one. It's gone haywire.
  The only sound it makes now is a short (three seconds) burst imediately
  after it's turned on. Then it peters out to a barely audiable signal.
  It was working fine before this started.
   Do you know what the problem is?
 
  Thank you for your time,
  Dave
  
  Yreka, California