Built-in Electric Oven

Hi My Name Is Beverly I Really Hope You Can Help Me Out With My Built In Electric Oven. I Was Baking Chicken A Few Nights Ago After The Chicken Was Done Cooking The Oven Control Panel That Lights Up Stopped Working. My Husband Is A Electrician And He Checked The Circuit Breaker But It Was Working It Was Not Tripped. So At This Point We Dont Know What Could Be Wrong. We Dont Have Alot Of Money To Have Some One Fix It If We Knew What Part We Need My Husband Can Fix It Himself Please Let Me Know If You Can Help Us Out. Sincerely Yours Beverly