currently I am repairing a CS-80 which had a lot of problems, it was not powering up and several custom Yamaha chips where dead on serveral boards. I managed to get most of the chips but I can not find a IG00150 also known as M51620P. I need one for the Chorus, syntparts does not have them and I tried a lot of sources. So if someone has stock please let me know.
The ribbon controller is not working, I opened the ribbon yersterday and found out that the spring inside is in a lot pieces. Are there replacement for these or are there other solutions to get the ribbon working again.
Is it possible to open the control levers? Some of them are a bit noisy/scratchy.
Thanks for all the input!
Maarten