I appreciate your help & advice, but the unplugged x 5 min didn't help. I can't find a fuse on the back panel, so it must be internal. I guess I'll have to unhook everything, which I am dreading & take it in for servicing. There are no authorized Yamaha service ctrs where I live, so I going take it to an independent or maybe Best Buy. I know there is prob a $25 diag fee, which can be applied towards the repair.