clock/display went dim to dark

First I did it wrong-then I came and read how the 64 yr old lady it and she was spot on. First-turn off power to unit. Take off the 4 screws holding the upper part with the clock in it . (OPen the oven door for access) Then lift up slightly and pull the upper unit out. CLock is right there held on by 4 1/4 inch screws. Remove screws, unplug wiring and reinstall using reverse procedures. Then turn power back on. REady to go