Stuck on the left when calibrating

Hello to all

I am an electronics repairman.

I have a number of Logitech G27 motherboards that all have trouble calibrating.

The problem is that when calibrating the steering wheel goes all the way to the right and then to the left, but does not return to the center and gets stuck on the left.

There are no signs of burns or physical damage on the motherboard.

I put a healthy Motherboard in this device and the problem was solved.

The encoder is healthy, the motors are healthy (about 30 ohms), the adapter is healthy and has 23.5 volts output.

I have several motherboards that have this problem. Do you have a solution to this problem to fix Motherbaords?

Thanks