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Hello can I turn on keyboard backlight of hp compaq cq42-220tu laptop?

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This laptop, like most others, does not have backlight keys on the keyboard.

Posted on Mar 26, 2011

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1 Answer

Backlight keyboard hp


No

maybe get a white color external USB keyboard.

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The shift keys and ctrl keys on my nc6230 laptop have stopped working. Any solutions?


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I have nc 6220 laptop hp after windows xp professional restoration i have dim screen problem


Couple of possibilities here...

Hardware may be set for low brightness, look at keyboard for icon of a sun. Press the function key and this button to increase the brightness.

Driver may be needed - get from manufacturer website

Backlight / flourescent light is near end of life - may need to be replaced.

Inverter Board for back light is having issues - may need to be replaced.

You can replace the inverter board without replacing the backlight, but if changing the backlight itself, the inverter board needs to be replaced as well.


Jun 11, 2010 | HP Compaq nc6220 Notebook

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Turn on pc
Take a hairdrier at full 2000watts and apply heat into computers vent in upper right corner for approx 2-3minutes - screen will turn on and off due to the heat - turn computer off - now apply pressure to keyboard around J K L and enter buttons several times or use pressure with your palm without damaging keyboard,only firm pressure - wait 5-10 minutes for pc to have cooled down - power on and it will ligt up screen..this helped on mine....
rgds Peder/Denmark

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1 Answer

Compaq laptop with dark screen


It is possible that the problem is in the video card - that it's just not turning on the backlight. But it's so much more common for it to be the backlight or inverter that I'd try to get a second opinion.

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1 Answer

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try pluggin an external monitor to the laptop. If you see the screen then your filament ribbon might need repair or replace.

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