Removed amp from enclosure, gave it a visual check, no signs of overheating, leakage or anything obvious. Power supply (Transformer?) has 110 volts coming to it. Checked resistance of several components on the board, all were ok, but many, many more need checked. I have a VOM that I really don't have a lot of faith in, so I got discouraged , and impatient. This led to me to re-attach two small plugs back to the board, one is for the LED indicator...well, somehow I broke the solder joint. Broke out the soldering iron and resoldered the joint, but not very well...I guess you need a really fine point gun for this (duh) and I damaged the board in doing so...not very smart, eh? Then, I read somewhere that Vibration may have caused a weak joint to fail...possible. I'm sure a capable repair person could figure this out rather quickly, but I don't have the budget for this (sound familiar?) Any ideas??