or, the 5 v rail voltage could actually be low, which is the rail that
supplies the CPU/digital board on the Matrix.

----- Original Message -----
From: "jim finch" < jahg88@... >
To: < oberheim@yahoogroups.com >
Sent: Friday, August 03, 2012 8:07 AM
Subject: [oberheim] Re: Oberheim Matrix 6, Dead


You didn't mention how you were reading the powersupply voltages-but I
didn't read the whole thread.If you use a O-scope you can see what is
actually there,not just the D.C component. Most likely there is garbage
riding on the +5V rail making the digital components see it as logic level
shifts.