> Have you tried the contact microphone (pizeo buzzer) yet to narrow > down the location ? Hook it up to your sound card if you don't have > a great scope.
I got an electret mic working, but it didn't pick up anything off the board. Hmmm... do I even *have* a peizo buzzer? I've got a "magnetic transducer" off an old motherboard... I guess I could pick up something at RS next time I'm out. > I am assuming it is in the bottom right hand corner of the picture > where it looks like the switcher and the SM inductors are that it > seems to be coming from. The bottom right (the one with the three SMT inductors) is the 3.3v switcher. In that photo, the TOP right is the +12v LDO for the OLED. > Maybe you could consider one more culprit in that corner you may > have over looked - the DC plug. Nudging the power jack does nothing. _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user