I got a Harmon Kardon AVR 210 from my mon when she moved to her new place. It is about 10 years old. She said it was working when she moved and put it in storage. I was installing my new ceiling speakers and started to hook them up. They would not work. I get sound out of the center channel and the sub, but nothing from the other 4. I did hear sound for a second but cut out. I checked all the speaker wire, I hooked the new ceiling speakers up to the center channel and they work. I am thinking somthing might be blown in the receiver. Is it work getting fixed or buying a new one? Or am I over looking somthing? Any advice would be greatly appreciated.