Sometimes, the solution to an issue on a LightSort rack is to replace the controller unit. The following steps explain how to remove a controller and install a new one. 

The controller assembly is located on the left hand side of the top rail. 


1. Disconnect all Cat 5 cables from the controller.

2. Disconnect the power cable from the controller.
3. Unscrew the four bolts holding the controller to the back plate.

4. Remove the controller from the rack.