Yamaha DTXpress/DTXplorer/DTXtreme

Oh please tell me my module did not just fry! I turned it off and it 
was working fine..5 days later and I turn it back on and now I have 
got a very low frequency hum coming through the speaker outputs, 
including the headphones. And nothing comes out but
 very  fuzzy output from both Left and Right channels. This is 
sickening...I know I didn't do anything except turn it off and on. 
Tried different outlet plug ins..hoping that was causing it..but its 
definately coming out of the output. Man this stinks........

Gary