Laptop screen black

July 20, 2011 at 21:58:07
Specs: Windows Vista
Can anyone kindly suggest what the problem is?
Recently my Toshiba laptop screen broke, so I bought a new one and took apart the laptop and put in the new screen. Now when I turn on the laptop, the Toshiba welcome screen comes on for 1 second, then the screen goes black. This keeps happening no matter how many times I reboot it. Someone suggested I press the "output" (the button with screen pictures on it) while holding down "Fn" button. When I hold the buttons for a moment, the screen reappears, and disappears right away again. This only works sometimes.
Sometimes if I focus really hard, I can see the Windows boot screen loading very dimly. I'm not sure what happens after the Windows loading screen, but I can definitely hear the Windows start up sound.
Anyone care to give any help?
Thanks in advance.

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July 20, 2011 at 22:11:26
what do you mean the screen broke? did the laptop fall on the ground, or the screen stopped working? the screen cable in the laptop might be loose thus the dim light you see. try connecting the laptop on another monitor do u get clear display?

computers are a second home

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July 20, 2011 at 22:49:10
The screen cracked when I accidentally stepped on it. I'm sure the screen cable is plugged in properly. I haven't tried connecting the laptop to an external monitor since I have no idea how to do it.

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July 21, 2011 at 05:21:12
I just connected the laptop to an external monitor and the display works perfectly fine on the external monitor.

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Related Solutions

July 21, 2011 at 05:40:08
If you can see images on the screen then probably the backlight or inverter is bad.

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July 21, 2011 at 08:19:40
Is the replacement display assembly new or used ?

It's foolish to use a used one unless it has been truly refurbished - unless the backlight has been replaced with a new one, and the display has been tested and the voltage inverter and the display has been confirmed to work fine.
The backlight is a CCFL - Cold Cathode Florescent Lamp - it deteriorates and burns out eventually, just like any other florescent bulb.

If it's new, there's probably nothing wrong with the backlight and the display assembly otherwise, which may or may not have the voltage inverter inside of the bottom of it - if it isn't built in, then the voltage inverter is probably in the lid below the display assembly.

It's common for the wiring between the display assembly and the video adapter to get damaged, most often where it passes through the hinge area, after the laptop has been used a lot, That's a frequently replaced item and is relatively inexpensive.

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