Has there been any recent software or hardware change made? Do you see the Dell logo when you start the computer?
Disconnect the power cord & remove the battery, press & hold down the power button for 30 seconds (this will remove the static). Connect the battery & power & start the computer by tapping F2 & check if the computer enters the BIOS screen.
Please run a hardware diagnostics by following this link http://bit.ly/2fJuGXB & check if there is an error or video displayed.
For my reference, please click on my Dell username & send a private message with the service tag, registered name & email address.