Why does my hp 530 not switch on

i plugged my hp 530 and then i noticed that if i on the laptop it will make a sharp sound and then switch off after sometime it will start charging if i switch it on it will make a sharp sound and then switch off.

i discovered that the charger was burnt i changed the charger but when i plug it the laptop does not switch on,it does not even blink at all.any answer is welcome you can email me at lhuciousgold@gmail.com. thank you