76-KT VU Meter screw directly underneath meter function? help needed.

New

Hi everyone,


I recently purchased the 76-kt compressor and im absolutely loving it. I am aware of the rear vu meter adjustment pot as stated in the start up guide but there is also a small hidden screw directly underneath the vu meter that i have messed around with (which i regret doing) i dont know why i messed with it, i was just curious what it did. 


Im worried ive somehow messed up the calibration now as i presume this screw is factory set and shouldnt be altered. I can see that you can turn it clockwise and anticlockwise one turn and then it becomes stiff, you then screw further past that stiffness and it sort of resets to the loose, clockwise/anticlockwise setting as before.


Am i ruining the screw by turning it over and over to see what it does? is it some sort of spring that i am unwinding?


Id really appreciate any technical information to settle my mind on how this screw works and what you should do with, if i have perhaps ruined it by over turning it, or if i am just worrying too much?


Thanks ever so much in advance.