Magic Chef burner use dims clock

I have witnessed the clock cycling into dim and bright as the burners on the stove top are in use. I have not noticed the clock being dim any other time. I have also noticed that the right front burning is heating in an uneven manner.

I replaced the over sensor about six months ago. The oven would not reach the t-stat setting. The oven seems to be heating according to the setting.

Is this a control panel/clock problem or do I need to replace the heating elements?

NEW INFORMATION: I have been told that over time the capacitors on the control board may contribute to the dim or no display contition. Any idea how hard it is to replace the control board? I may replace the front burner as well. It gets used that most.

Many thanks for your assistance.
MacMonkey