I have a Denon Surround Sound Receiver and one day had the radio playing via the tuner and heard a loud SNAP and the receiver shut off. Now the ON/STANDBY light continues to blink and when the power button is pressed on, the system comes on and then shuts off on its own. We have tried unplugging the wiring in the back and repluggin in, but this light still continues to blink and unit is not working. Can someone tell me what is wrong or what i have to do in order to get the receiver up and running again properly??