Good Morning,
My Fagor HP-7660X1 oven turns on normally and shows the clock flickering. When I set the correct time, the intensity of the clock goes down and after a few seconds it returns to 00:00, so the oven does not let start cooking.
I have read some forum posts indicating that the problem may be the clock (it has logic), but the spare is worth more than € 100 and before making such an expense (the oven is 10 years old), I would like to verify it.
Is there a way to bridge the clock so that the oven works without it?
Any measures that can be taken to check the component that is malfunctioning?
I attach images of the oven clock.

A greeting and thanks in advance.