Frigidaire cooktop (buzzing) when started

I have a Frigidaire oven MN. FEFL63FSB. It is 13 months old. 1 month past its freakin warranty lol. All of a sudden, the clock display is dead. When you try to turn one of the eyes on, the 12:00 starts blinking but a piezo on the rear main board buzzes for a second, then no response. The oven never heats up, and neither do the eyes on the cooktop. It’s not a breaker/power issue. I am a low voltage electrician and am trying to save myself a service call or possibly purchasing a main $179 board and that not being the problem. Can anyone tell me how I can troubleshoot this problem and be sure the main board is bad before purchasing it. There are no error codes displayed btw. If you need additional info, please let me know. Thanks for any help anyone can be.

It does sound to me like the clock/control is bad, part number AP3775600
from here is only about $132.
Nat