How to adjust EZ Bias Jolida 302 BRC

Hello, Does anyone know how to adjust the easy bias on a 302 BRC? It is the one that has the silk screened logo on the front, not the gold badge. Did not come with a manual or any instructions at all. I had this sitting in storage for a couple years after purchasing it new here on Audiogon. Pulled it out to use on a computer system and cannot remember if i remove the inputs and/or speaker outputs to make the adjustments.
Thanks in advance if anyone knows how to properly do this!