Quote:
The schematic you have is obviously wrong since the way it is drawn it clearly indicates a short between power and ground (1 and 3). I think the black dot was intended to go after the triangle. That also explains the "optional coupling capacitor" that is there to cut off DC and let just the signal go through (and I think that may be why you are having poor performance with yours).


Actually that schematic is correct. It does not show a short to ground at all. The triangle is a preamp (op-amp) inside the mic somewhere. That's pretty standard having the power connections come in either side of the op-amp diagram.

Thus the 3 connections to the mic.
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Christian
#40104192 120Gb (no longer in my E36 M3, won't fit the E46 M3)