NAD M33 issues, don't know where to start

I hope this is the right forum to post this in, if not sorry..

I have owned my M33(used) for 3 months now, everything was just fine, then a few days ago my display went out, it lights up, but blank screen. I have tried the factory reset and nothing changes. Everything still works via the remote or the BluOS app, but not having the display sucks, anyone have a fix or any ideas they could share? I was hoping that I hit some kind of setting, but it happened when it was left on for a day..ie working in the morning, came back and blank screen. Do I call a repair shop off the NAD website? What would you guys do??