behringer b1 is not expensive mic but good for record problem is main symptom.. .no sound.
what happened ?
first google search for circuit diagram .🙂 ..i found circuits for other mics...still cant find circuit .😱
tow pcbs .
1- main circuit for signal amp
2-60 voltage dc to dc convertor and filter
what happened ?
first google search for circuit diagram .🙂 ..i found circuits for other mics...still cant find circuit .😱

tow pcbs .
1- main circuit for signal amp
2-60 voltage dc to dc convertor and filter
b-1 is not true balance output .just one line signal .if your b-1 mic not working start with dc voltage on output of push pull q3-q2 .normal should be 8 to 11 dc voltage .it mense circuit is ok .
fix problem on b-1 mic and send back to customer . there is no schematic of b-1 on internet.but in diyaudio can find this circuit .
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