Please help troubleshoot HK AVR7200 problem.....

I don't know your level of experience, but I will give you some basic ideas where to look...Have you opened the case and checked to see if the board fuse has blown? I know, thats a simple question, but sometimes there is a second board mounted fuse. Another thing, try a different outlet....have you checked the power supply to see if 1) it is receiving voltage, 2) is it coming out the other side...and are there any broken resisitors, triacs, regulators etc...did it smell burnt at all? I would take it apart, get a bright flashlight shining on the board and just stare at it and look at a 4" square at a time to just look for something that doesnt look right. Its the little things that need to be checked along with some obvious...If its not visual, it very well could be just a failed piece of the boards components that didn't fry, but it tripped the protection circuit..for your benefit...Good Luck...

Dreamst8 has good suggestions. I'd also check to see if any speaker wire strands are touching another binding post (which will trip protection circuit).
Is the receiver pluged into a surge protector?
Your receiver may have taken a power surge hit and be fried.
Last week, my TV wouldn't turn on (plugged into an Adcom ACE-515 -over 15 years old).
I felt it might be a voltage thing so I plugged the TV directly into the wall socket and it worked.
Lastly, turn off the power to the wall outlet and check the receptical. Specifically, use steel wool (or tarnex tarnish remover) to get the AC wires back to shiny metal then reconnect (why not replace receptical with hospital grade or fancy audiophile type while you're at it?).
Let us know if any of this works...

Thanks for the effort. I opened the case to the receiver. Wow. I have never seen so much jammed into a component before. I see about 5 different fuses all being very small. They all look okay. I also tried plugging the receiver into another outlet. No burn smell. I just don't get it. I don't know what else to try. I purchased from One Call and there is no way I am shipping this thing. I may have to look for a local HK repair center if there is such a place. I am really upset. Thanks for trying. I don't know what the board fuse is since I see about 5 total. One is larger and has a film or something so you can't see inside of it. The other fuses are all very small and look perfect. Any thing else a complete novice can try?