I talked to Zed audio .
He told me he no longer has schematics for the amp or the modules .
I will see if I have another amp here to replace the module for the muting circuit and see if I can get it to work .
I have a few Zed amps here hopefully that can find something
He told me he no longer has schematics for the amp or the modules .
I will see if I have another amp here to replace the module for the muting circuit and see if I can get it to work .
I have a few Zed amps here hopefully that can find something
In post 2 you said the amp might have a leaky cap causing issues since I get no sound out of 4 channels .
Wondering did you mean a leaky cap in the muting circuit or a leaky cap somewhere on the board
Wondering did you mean a leaky cap in the muting circuit or a leaky cap somewhere on the board
Something like C7 in the muting circuit.
Without the diagram for the SIP network, it may be difficult to troubleshoot.
You could try shorting the output side pins of the opto-coupler to see if the audio is released.
Without the diagram for the SIP network, it may be difficult to troubleshoot.
You could try shorting the output side pins of the opto-coupler to see if the audio is released.