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Parts for Maytag MEW6530DDB Oven - AppliancePartsPros.com

I cannot say whether it is the control panel (keypad) or the control board (timer). Unfortunately they do not publish a pin out of the control panel so you cannot check the keys.

Have you tried removing power to the unit for a couple minutes to see if the computer will reset?

I would try the following.
If that does nothing then I would replace the control panel first.
Note that if you ordere the part from AppliancePartsPros they will let you return it if it does not fix the problem.

Connector Cleaning / Checking
Unplug the unit
Open it up
Remove the ribbon cables from the keypad to the control board at the control board.
Clean the edge connector. Use electronics contact cleaner or isopropyl alcohol.
If it is the type where there is not a connector just the insulation is removed, it can be cleaned with a pencil eraser. Do not use an ink eraser as it is too abrasive.
Check the tracks in the ribbon cable for hairline cracks. A magnifying glass helps here.
Would not hurt to clean the connector on the board. Use electronics contact cleaner or isopropyl alcohol and a tooth brush. Be gentle and do not reconnect till all the solvent evaporates.
Reconnect everything and give it a try.