Vincent has been so kind to contact with me to report that unfortunately he was unable to solve the problem and sold the mount, moving to a CEM60. His mount used a Gemini 1, so either the problem is not tied to the Gemini or the part that causes the problem is present in both generations of the computer (code or electronics).
Thus, the problem is still unsolved and in my case means that PEC is unusable in my mount :-(
Best regards,
Daniel,
