You have logic whine comming from KBC1 and KBC2. Replace the cmos on these two boards. they are the 4001, 4069, 4013, 4019, 4073 and 4016. This will cure it. Best regards Kent -----Original Message----- From: pyjamagroove Sent: Thursday, May 23, 2013 9:14 PM To: yamahacs80@yahoogroups.com Subject: [yamahacs80] Is CS80 actually self-oscillating or I have another problem? If I go to the panel mode (both channels) and turn all VCOS, noise and sine off, both VCF up -then I put overall brilliance and keyboard control brilliance up and press like 6 or more keys at the same time, I hear high sine sound and actually a little VCO in the background and some noise clipping while pressing those keys. I�ve noticed this playing presets like brass with all the brilliance up. Do you guys have the same effect or there is something wrong with my CS80? ------------------------------------ Yahoo! Groups Links
Message
Re: [yamahacs80] Is CS80 actually self-oscillating or I have another problem?
2013-05-24 by Kent spong