Using the Barco FSN - 1400 video switcher is straightforward. First, connect it to the power supply using the provided cable. Then, attach your input devices like cameras to the native or universal input cards. The mix/effects card allows you to create cool visual effects. The DVE card can add dynamic video elements. Use the FSN - 150 compact controller to easily navigate through the touch - screen menu. Remember, the device doesn't have a redundant power supply, so make sure you have a stable power source. Since one knob cap on the touch - screen menu panel is missing, be careful when using that area. For maintenance, keep the device in a clean and dry place. Regularly check the connection cables for any signs of wear and tear.