To properly maintain a digital signage system, you need to make sure the hardware components are in working order. This includes checking for any damage or deterioration from everyday use, such as dust build-up on screens or broken cables. Additionally, software updates must be installed regularly to ensure security and compatibility with new content formats. Finally, there may be specific requirements depending on your location: for example, certain countries require additional safety features like fire suppression systems.   When done correctly, maintenance can help extend the lifespan of your display while ensuring smooth operation and flawless visuals at all times. It's important to find a reliable service provider who understands the needs of digital signs and can keep them running optimally - this will save you time and money in the long run!