Monitor says no signal and will not run a dvd
It could be a couple of things. If this monitor is hooked up to a computer, it could be a bad video card. A video card is easily fixed on a desktop, if you're using a laptop you're probably out of luck.
If it's hooked up to a DVD player, check that the cord to the monitor is hooked up properly (make sure the connection goes from the "Video Out" on the player to the "Video In" on the monitor and that all connections are tight, not barely hanging on). If that doesn't work, try a new cable.
This is probably insulting, but also make sure that the monitor is set to the right channel if it's multichannel. For example, if your DVD player is hooked up to HDMI 2, make sure the monitor is set to use HDMI 2 for signal.
If none of these work, it's time to find a tech-happy friend that can inspect everything visually. Hope that helps!