HP G72-250US screen remains black on power. hear the fans and light is on but no go

I work with a HP G72-250US laptop and using Windows 7 64-bit Intel Core.

Mhz core 2 [email protected]

Sorry for the long story. Thank you for using Gheagyrn! me. What is the mother board or the hard drive?

Replaced the screen due to the vertical and horizontal lines in color. Computer worked sometimes normal. I thought it was fixed but then while doing a HP Diagnostics program the computer says shut down because the situation batttery likely to damage the computer. I tested the AC adapter. I installed a new battery and as a first step, it still worked. I have updated and scanned with AVG & Malwarebytes. Do you have another HP diagnosis and at one point was told to restart. Never, he was still alive at this point.

There is no switch on the led power and W/LAN (12 F). Blue lights run on times indicating Cap locks and locks numbers are engaged. I did a full factory restore before it came to this point and updated bios (for F 37) and downloaded the updates of graphics chipsets too. (after the screen is installed) The only thing it does now, it's making noise at startup and power led lights now light guard cycling. (light, light on) every ten seconds.

Hello Gheagyrn, welcome to the forums of HP.

I see that after replacing the screen, you have since fallen on an issue where the notebook does not start. The display is empty and have a blinking light. I will do my best to help you with this problem.

I recommend starting with these documents:
Computer does not start and the lights blink or the computer will beep
Troubleshooting of black screens with no start-up or start-up error message

These should test you the material to see if something specific causing the error. The document can also help determine if there is a code of error being indicated by your laptop.

Start with the above, please let me know the results.
Thanks for posting on the HP Forums.

Tags: Notebooks

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    -----

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