Hi. Most synths have separate digital and analog power supplies, to keep the digital noise from the logic circuits away from the analog sound circuits. If the noise your picture is showing is on the 5v digital supply, I dont think it should be a problem. It looks like maybe 150mv or so pk to pk? There will
Always be some noise on the digital rails.
Bob
Always be some noise on the digital rails.
Bob
From:
joseph.redhemption@... ;
To: ;
Subject: Re: [oberheim] RE: Xpander impossible to autotune!
Sent: Sun, Jan 19, 2014 12:47:09 PM
To: ;
Subject: Re: [oberheim] RE: Xpander impossible to autotune!
Sent: Sun, Jan 19, 2014 12:47:09 PM
Hi Nick, with the DVM all is fine. But with scope you can see on the 5V supply some kind of burst. See my last post with attached scope shots.
Hi simone all the caps have already been replaced.