Does anyone understand the circuit from the solo isolate switch on the group trim pot?
I am trying to add this functionality to my 8K GB. I don't any reference to it in any service manual. On a standard 4K G+, I can see that switch goes to D5 (plus lead with D5 removed) on the 611 motherboard. this makes recall work for that switch. but there is more to this and I am looking for how it works.
I have attached a document kindly supplied by brewery .
Thanks!!
Roy