Frigidaire range control panel gone blank

On my Frigidaire fed387cesb range the clock/control panel has gone blank and the oven does not work. The burners on top work fine. I’m guessing the control unit needs to be replaced but before I buy a $300 part that can’t be returned I’m wondering if there is anything else I should look for? The oven light works, if that helps in a diagnosis. I tried turning off the power to see if it might reset and there was no change when I turned it back on.

If there is 120 VAC to the control board and the display is blank, then the control board has gone bad.

Here are the breakdown diagrams and http://www.appliancepartspros.com/partsearch/model.aspx?model_id=110226

Gene.

only spins in the regular cycle

washer only spins in regular cycle