1/ I'm assuming you replaced the control board (aka a clock)?

2/ Have you checked the heating element for continuity?

Does the Broil work?

Gene.

Like you, I could not find a thermal fuse or hi limit switch on or in your range diagram. Most free standing ranges do not have them.

I take for granted when you "checked a few things" you also checked for burnt or damaged wires to the element ? and that both breakers set and supplying power to your range.

When you select broil on your control panel, does the upper element come on and heat? with a new control board and if the broil element does come on and heat, this would be a good indication of a damaged wire between your control board and bake element.

If neither element comes on and heats, it would be an indication of a power loss on one of your 120 volt lines to your range(outlet ,breaker,wiring or power cord) and may require an electrician to diagnose and repair as needed.