Yamaha YC 25D Organ : second bass C not working properly

Forum rules
READ: VSE Board-Wide Rules and Guidelines

If your Help request has been solved, please edit your first post in order to select the

Topic Icon to let others know your topic has been solved.

readymedia: Newbie; Posts:18; Joined:Thu May 15, 2014 8:11 pm; Gear:TS12, KS rack, SY77, V50, T2 Turbo, WSA1, EX5, O1W/FD, JV1080, K1r, MASCHINE STUDIO+JAM, PUSH 2, ZAQUENCER, a bit of modular and other stuff...; Location:Berlin; Contact:
Contact readymedia

Website

Yamaha YC 25D Organ : second bass C not working properly

Quote

Post by readymedia » Sat Mar 09, 2024 9:08 pm

Hola here!

I have Yamaha YC 25D Organ, but in BASS MODE (at inverted keys) the second C dont work. Its sound like the key pressed bevore (from above AND from the bottom). What can cause this? I tryed to trace the On-Off switch to the corresponding board. The switsch itself seems to work, because it triggers a note but not the right one. So it seems that decoding of the pitch is wrong...

Any ideas?

Best!, Ready

P.S.: Yellow cable at the left is sodered now