Purchased in January 2021, the Denon AVR-S960H receiver delivers a "broken AV signal". It flashes from normal to black every few seconds for about 30 minutes before stabilizing to normal operation.
My receiver suddenly developed a very loud hum when on. I can still hear the audio behind it. This unit is six years old. I live in Calgary, Alberta and am looking for assistance in repairing it. Where Should I take it.
