Dear Traudio,
The links about the KHM234AAA, sent to you by myself and Alex, are of the complete transport unit. What you seem to want is the plastic holding mechanism for the transport unit. Any repair shop that works on cd players can likely remove and clean this mechanism, as that likely is all that is required for proper operation. I once had this problem on a Theta unit back in the late 90's and had Theta clean the unit and it came back working as new.
Steve
The links about the KHM234AAA, sent to you by myself and Alex, are of the complete transport unit. What you seem to want is the plastic holding mechanism for the transport unit. Any repair shop that works on cd players can likely remove and clean this mechanism, as that likely is all that is required for proper operation. I once had this problem on a Theta unit back in the late 90's and had Theta clean the unit and it came back working as new.
Steve