blank screen in my laptop

[Jeyanth]

when i switch on the power button my laptop screen is fully blank.. It shows the screen like when the lap is poweroff.. i connect to the external display but there also it shows the blank screen

 

[Laptop_Nerd]

Hi,

Please do try these troubleshooting steps that may help.
- First is to do another hard reboot, remove the battery and unplug the AC adapter then press and hold the power button for 20 seconds then try booting it up again.
- If it will not work, do try a different AC adapter that has the same voltage and see if it will power up or not.
- If using a different AC adapter will not work then the problem may lie inside the motherboard.
- Do reseat the RAM's and see if that will make any difference.
- Remove them all for couple of seconds then put them back in making sure everything is seated properly.
- If all these will not work then the problem lies in the motherboard.