pvision
Well-known member
I have a couple of Shure M267s where the compressor doesn't work. The units passes signal with the compressor on but the threshold control does nothing. It seems as though nothing is happening at all when the compressor is switched in
I haven't done any fault-finding yet but it struck me that a potential point of failure is the 86A8908 optocoupler which links the sidechain to an opamp in the output circuitry
The Shure parts list states Commercial Alternative: None for the part
Is anyone here familiar with the 86A8908 opto isolator?
Schematic
http://cdn.shure.com/user_guide/upload/955/us_pro_m267_english_ug.pdf
Nick Froome
I haven't done any fault-finding yet but it struck me that a potential point of failure is the 86A8908 optocoupler which links the sidechain to an opamp in the output circuitry
The Shure parts list states Commercial Alternative: None for the part
Is anyone here familiar with the 86A8908 opto isolator?
Schematic
http://cdn.shure.com/user_guide/upload/955/us_pro_m267_english_ug.pdf
Nick Froome