Using the Roland V - 1600HD is a breeze. First, connect it to the power supply that comes with it. Once it's powered on, you can start switching between different video sources for your live events. When using, make sure to place it on a flat surface. Since one rubber foot is missing, be extra careful to avoid any wobbling that could potentially damage the device. For maintenance, keep it in a clean and dry place. Regularly check the connections to ensure they are secure. If you notice any issues with the video switching or other functions, consult the user manual that might have come with the original box.