Ntive Instruments Jog Wheel Sensors
The jog wheel on the Traktor S2 and S4 units have sensors that may go out over time. If your jog wheel is not responsive, will not spin back or nudge forward, or if there has been some other fault with the jog wheel, the most likely problem are the sensors.
Two sensors come as a package.
*Note: High level of soldering required to perform this task.