Dishwasher won't start

Suddenly my dishwasher stopped working. Only three of the front panel pushbuttons light up when pressed: "High Temp," "Sani Rinse,", and "Heated Dry." None of the 6 Cycle options (Smart Wash, Pots Pans, Normal Wash, Light Wash, Fast Wash, Quick Rinse) light up when pressed, and the Start/Resume button does not work. So it appears that electricity is reaching the machine (only partially?), but is something disconnected or a master circuit board burned out? Any ideas are appreciated!
Kenmore 2213849K601