Reattaching the Top Plate
If you cannot scratch nor cue a track by pressing on the top plate of a Jog Wheel it might not be applied correctly to its socket. In this case the Load lamp next to the jog wheel will not light up when you press on the top plate.
Note that TRAKTOR PRO 2 calibrates the KONTROL S4 / S2 Jog Wheels automatically, so usually it won't be necessary to do this manually. However, if you need to manually start the calibration for any reason, you can still do this.
The jog wheel calibration guide explains how to complete this process in the most efficient way. This guide is available as a PDF attached to this article. Calibration will not only optimize the jog wheel response but can also solve some potential problems that may occur if the TRAKTOR KONTROL S4 has been dropped or transported inappropriately.