Using this Panasonic video monitor is simple. First, connect your device to the monitor via HDMI or SDI cable. Since it doesn't come with a power supply, you'll need to use a compatible one. When using, make sure the cables are well - connected to avoid signal issues. As for maintenance, keep the monitor in a clean and dry place. Wipe the screen gently with a soft, dry cloth. Avoid exposing it to direct sunlight or extreme temperatures. And always turn it off properly when not in use.