Display Panel not working

Our double wall oven display panel is off. We turned the electricity on and off w/ no results. Should the whole display be changed or is there a fuse within the oven that needs to be checked and exchanged if faulty. Please help!
Thanks

A model number may help others help you.
http://www.appliancepartspros.com/modelnumber_locator.aspx

Whirlpool Model number RBD305PDQ12;
We had a repair man looking at it and he told us that control panel needs to be changed and he said this part may be hard to find. If I find the part is this a straight forward replacement of the board and connecting the wires or is it more complex than that?

Thanks For Any Comments, In Advance
Mirsky