Question about HP Pavilion dv4000 Notebook

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Lighting up my keys

Need to know if there is a function key that lights my key board up

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There is a button named "fn" near the space button.
take it press, and control the light with f7 and f8

Posted on Dec 29, 2007

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Posted on Jan 02, 2017

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Sound problem


Check all the usual suspects. Windows Volume, speakers volume. Make sure its not muted in the hardware. There is a key function that can mute or change the volume.

Its the light blue function key at the bottome left ( usually). You hold that down and press the light blue volume button ( usually at the top left or right keys.

Did it work one day and just stop?

Also go into the sound settings and make sure the sound device for the laptop is selected.

If none of these things work, you may have a bad sound card on the mother board which requires a new Mainboard.

I would have someone who knows about computers give it a once over. find someone you know who can just give it a quick once over before spending any money.

Alot of times the Key function volume controls will get turned off but still shows that its on in windows. Depending on the laptop

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