31 Mar
2015
31 Mar
'15
8:47 p.m.
On Tue, March 31, 2015 12:36 pm, Patrick Shirkey wrote:
That person might not have much money but they might
have the time to
figure out where the buzz comes from and do something productive. Who
knows they might even be able to provide useful feedback to Behringer that
improves their Linux solutions.
Sounds like everything else on the board was working ok so a little bit of
hum should be relatively easy to solve. Maybe it just needs some contact
spray.
That type of problem is indicative of poor circuit reference conductor
routing (colloquially called "ground loop" or "pin 1 problem") and can
sometimes be improved with judicious use of added wire or copper foil tape
connections, but often requires a new and proper PCB layout to correct.
It is basically just sloppy layout work by the design team.
--
Chris Caudle