Dell Inspiron 1525 LCD display Black

[Techcrazy05]

I am trying to fix a dell Inspiron 1525 but have run into a snag. The laptop turns on but the display is black throughout the whole booting process. Here is the troubleshooting I have done so far.
Connected it to an external monitor and nothing happened.
Tried removing 1 Ram stick and booted up and screen is still black.
Tried power cycling and screen still black.
Readjusted the LCD cable that is running from the LCD to the motherboard and still black screen.

Any and all suggestions will be greatly appreciated!

 

[jarotech]

Hi, can you hear the startup sound of Windows, if not, then the laptop does not boot.

 

[Techcrazy05]

Are you talking about the jingle of windows vista? I don't hear it but the fan and hard drive are running. And the volume could be turned down

 

[jarotech]

Yes, the jingle of Windows vista, try to go in the BIOS.

 

[Techcrazy05]

Yea can't do that. I hear everything inside but the LCD screen is black and won't connect to an external monitor

 

[jarotech]

So, your laptop is not booting or the GPU is defective.