New Control

I just purchased a new Panel control for my unit. The oven was working but the light wasn’t on so you couldn’t see the time of temp. In the process of changing the board it unpluged from the the other board on the side of the oven. There are 2 possible conections to plug it into and i am not sure which one it goes into. There is a marking on both boards that reads J2 so i used that connection but it doesnt work. the control lights up but the oven won’t heat up. I checked the two elements and the thermostat and they are fine. Again the oven worked less the light prior to my starting the repair. Any help would be appreciated as to which connection should i be using. Or any other possible saloutions to my problem.

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