hi, the clock stopped working on my wall oven. how do i know what went bad. electronic control board number is 7601p281-60. that is no longer made. i found 2 replacement numbers but i need to know what "broke" b-4 just ordering parts. the light in oven still works. this is supposedly the brains of the oven. i’m not sure what direction to go from here. $750 to replace oven is not an option. thanks for your time
dd