Yamaha CS80

Well, as we currently all seem to be in "find-and-fix" mode here's my other symptom for you.

On another M card I have a filter that sounds wrong (open?) on certain voices/patches. I am getting a constant 5volts on pin 8 of the VCA (IC1) the other, good cards aren't stuck with this voltage.

I'm inclined to think it's the 151 VCA... does anyone agree please?

Cheers,
TOM

Hi Tom,

I had a similar issue with one board on my CS60.
The problem was the following: the envelope of the VCF had a two states behavior, that is it jumped immediately from start level to sustain level when a key was pressed, then immediately back to start level at the release of the key. This was obvious using a panel settings with the EG-VCF sliders all the way up. Changing IC1 solved this issue.

Joachim