The picture board on your monitor is bad, since it goes blank after five seconds, it shows that the picture board of your monitor has developed fault.
The best thing for you to do now is to take the monitor to a local repairer within your vicinity to help with the replacement of the picture board because the fault is not something you can fix yourself, in order not to complicate issues.
Answers & Comments
Hello,
The picture board on your monitor is bad, since it goes blank after five seconds, it shows that the picture board of your monitor has developed fault.
The best thing for you to do now is to take the monitor to a local repairer within your vicinity to help with the replacement of the picture board because the fault is not something you can fix yourself, in order not to complicate issues.
Take care.