Hi @giommm
You would need either the service manual for the cooktop or the schematic for the board to know for sure.
I couldn't find any service information about the model online.
What I did notice though is that when you zoom in on the 2nd image you posted so can see marks on one of the board connector tabs showing that a plug connector may have been there which don't seem to be on the other similar board connectors.
Here's a zoomed in image showing where to look. Note the red arrows pointing to scrape marks and the green arrows showing dents in the tabs whereas they don't seem to be on the others on the board
You may be able to see it more clearly though when looking directly at it.
[image|3587739]
click on image)