Beep Mode Debug = Knobs Toward Center

[petemoore]

I don't know that I've seen this or forgot to type it when helping people debug but.
 They don't really have to be centered, as long as they're not max or min.
 I've ripped circuits out of boxes, debyswitched and dejacked them, pulled hairs out of my head and the circuits too, completely trashed some probably, not knowing that the reason for the misconnection or 'bridge' was not actually an error...nope.
 It was that dang pot, set at min or max, providing a perfect path for 'misreading' on the DMM.
 Basiclally what I try to do is:
  Remember< when a circuit shows what I cognicize as a 'bridge' or shorted where it should be insulated, or at least have resistance, look to see if theres a pot next to it, which can 'open or close' the door to wherever you're picking up readings of continuity where there should be resistance or isolation from ... ... where I clipped the black lead.
 I often clip the black lead to a circuit node, set to Beep mode, then check adjacent and other points around the circuit. While UglyFace debugging today, I'd left 2 of the pots set to all the way one way, simply turning these pots [fortunately before I got to falsely thinking, concluding, and desoldering], allowed me to get back on track looking for the real problem.
 The real problem is still the 1k knob. I'm using 2k there, was working...dunno what's up with that yet...I'm going to measure the V/R's of that pot next.
 This of course is totally obvious, once you see it, also it is easy to forget when otherwise occupied debugging.