Yamaha CS80

Hello all,

Longtime lurker and recent CS80 owner here. My CS arrived last week after international shipping in a custom roadcase in seemingly good order.  

On first inspection everything worked well but after moving it two rooms away to my studio it has now developed a stuck or hanging note issue.  The note is heard from the time that I switch the synth on and I have isolated it to voice 5 on the top bank.

It has been suggested to me that it may just be a trimmer that has slipped and needs minor adjustment. I have fiddled with the lower trimpots on the M board and while I can defeat the voice altogether no setting can remove the sustaining note

I am about to swap out the EG IC and next the VCA on the M board and thought that it may be best to refer to the group to see if anyone else has had a similar issue.

Thank you in advance and best regards,
Nigel