cmassey Posted March 18, 2017 Report Share Posted March 18, 2017 Odd one...fellow hands me his SMQV and Sony ECM-77b and says it no longer works. The mic works fine in my SM transmitters...works fine in his UM400a transmitter, but NOT in the new SMQV! I had time to do a bit of swapping...different mics, different transmitters and it was only the lav and new SMQV combo that produced NADA!!! Thoughts from the collective? Quote Link to comment Share on other sites More sharing options...
Rachel Cameron Posted March 18, 2017 Report Share Posted March 18, 2017 First thing I'd check is how the ECM-77b is supposed to be biased for the mic it's connected to. Edits: There also seems to be a phantom power requirement for the Sony. A quick look at the specs of the SMQV yields: Fixed 5 V at up to 5 mA; selectable 2 V or 4 V servo bias for any electret lavaliere. Interesting that it worked before. Until the real electro-brains arrive, I'd bet it's somewhere around those. : \ Quote Link to comment Share on other sites More sharing options...
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