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JBL 7510B, replacing front panel volume, individual phantom possible?
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Old 5th August 2012   #1
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JBL 7510B, replacing front panel volume, individual phantom possible?
Here is the schematic: Vintage JBL-UREI Electronics

So I have a couple JBL 7510Bs, and I have read that you can remove the front panel pot and put in a reverse log pot connector to the d-sub terminal in back to make this function more like a traditional mic preamp. My question is, can I straight disconnect and remove the volume pot, is there something I need to put in its place on the circuit board?

Also, is it possible to have individually selectable phantom power on this, perhaps repurposing the front panel switch...?

Thanks
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Old 8th August 2012   #2
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More direct link to service manual...

http://www.jblproservice.com/pdf/Vin...B%20manual.pdf
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