My Parasound 1205A seems to have died. I last used it a couple of days ago and noticed no problems. When I turned it on today there is no response. None of the LEDs come on. My first thought was a fuse so I swapped the plug over for another one but that hasnt helped. I then unscrewed the amps own fuse but it looks fine (can I tell by looking if it is ok?). Any suggestions on what is wrong and how to fix it? Thanks.