Hi, my name isXXXXX am eager to help you solve your appliance problems.
Most manufacturers have what is called "sabbath mode" which will not show display during operation. This may be an early version of that. Did you set the clock when you first powered up the new clock. Try this - when the oven is not on but is powered up try holding the clock button for 10 seconds and see if the control beeps. This may turn that mode on and off.
When I hold the clock button down for the 10 seconds, it beeps right away. The time still does not display after the button has been held for the 10 seconds..
Sorry I do not have an answer. I will opt out for another expert.
This is Peter again. After you push start and the display goes blank can you just push "clock" and reset clock or if you push "cancel" the clock returns?
Attached is a copy fo the diagram of the relay/circuit board. There are two pages. Sometimes the oven control LCD will stay on and other times they willnot. I am not sure what the problem is.
Let me know if you can see the diagram as it is in PDF format.
Alan has solved my problem and the oven control panel is now working.
Thank you, Alan!