Clock display stopped working

Followed the very clear instructions written by others who also had a combination microwave/oven. Complication encountered because my oven is built into the cabinetry right next to a built-in refrigerator that protrudes by several inches. No room to get a screwdriver in to loosen the screws for the faceplate of the microwave on one side in order to remove the oven's display panel. Luckily had just the tip of a Phillips head and used pliers to carefully turn it just a bit with each turn until screw came out. Also didn't have the right tool to loosen the clock display little hex screws and used pliers for that as well. It was tough to get two of the electrical connections out--had to be careful wiggling them free so as not to break the wires. Finally used a tiny little flathead screwdriver to gently work each side up a bit until the whole connection could be pulled out. Took longer than it needed to.