No light meaning nothing is illuminated
In view of that clarification there are some steps you should take.
First make sure there is actually power at the receptacle it is plugged into. If OK, try a new power cable.
If power light still does not come on: -
Open the receiver and see if there are any replaceable fuses. If so remove each fuse and test for continuity with your multimeter. If you find any blown fuses replace them with ones of IDENTICAL current and characteristics. Make sure if it is a slow blow type you replace it with a slow blow type.
Usually fuses blow because of a serious malfunction in the device, but not always. If the fuse blows right away this is as far as you will be able to go.
At the moment Sound United, the current owners of Denon is in turmoil. I sent in a five year old unit that they were unable to repair, because of lack of parts. Then its slightly newer replacement failed at three months and has been in for repair under warranty for just a few days short of three months now, and I have heard nothing from them. So I bought their top of the line replacement model the Marantz AV 10. So far, so good.
Sound United who own a lot of brands, have an offer of purchase by Harmon, now a subsidiary of Samsung. Because Sound United own so many brands, and so does Samsung, this sale is under review by the Monopolies commission. Your guess is as good as mine what their ruling will be. They won't release their decision until the end of the year at the earliest. Currently the owners of Sound United are Masimo corporation, a medical equipment manufacturer based in California. They have made an absolute "Dogs Dinner" of Sound United under their ownership and it is shedding money like no tomorrow.
