Question My monitor make « beep » and show black screen

[Amorphe]

Hello. Firstly, I’m sorry for my bad english, it isn’t my first language.
My monitor is an « Acer », the model is P235H. Itmake « beep » sound and then don’t show the screen of my computer or my playstation anymore. When I turned it On, it shows for only 2 seconds, makes beep and shut off. I am sure that my monitor is making the sound and not my computer. Can someone say what is the problem?

 

[popatim]

You can try the old Acer reset trick:
Turn the monitor on & quickly unplug the power cord; then hold the power button down for 30 seconds.
Plug the power cord back in and now try it again.

 

[Amorphe]

Hello.
Thank you for the answer. I did the reset trick but it still show the screen for 2 seconds while doing beep, and turn off.
Do you think that something inside the monitor burned?