I recently noticed that I had no sound coming out of my PSW10 and that the power indicator light was not lit, even after trying different outlets. I noticed that some people had said to check the fuse to see if it was blown. My particular unit was manufactured in May '05. I opened up the back panel but was unable to find a fuse. Is there a fuse on this particular model and if so where is the location? I searched but was unable to find that information. Thank you.