Use a flat screwdriver into the adjustment port when rotating the driver clockwise or counterclockwise, the movable piece will make the appropriate rotation.

Kunshan PCB board designs, can be layered, proper layout and installation to achieve ESD immunity PCB design. By adjusting the Kunshan PCB layout can be a good guard against ESD as a multilayer PCB, with respect to the double-sided PCB, the ground and power planes, and the closely arranged signal lines - ground can reduce common mode spacing impedance and inductive coupling, so as to achieve double-sided PCB 1/10 to 1/100 for the top and bottom surfaces of both components, with a short cable.