４ - ３ Removing the currently installed NB 4-3-1 Turning OFF the power to the currently installed NB Turn OFF the 24V DC power supply to the NB. 4-3-2 Removing all cables Remove all the cables connected to the NB. 4-3-3 Removing the storage devices (if used) Remove the USB memory. 4-3-4 Removing the currently installed NB from the operation panel Remove the currently installed NB from the operation panel. 23