Black Screen on a laptop

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 pcahmed983 -
Hello,
I have an HP Pavilion dv4 Entertainment PC which has a black screen and flashing CAPS key and NUMlock key. It is running but the screen remains black. What is the problem?


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have a look at this website mite help you:http://www.intellcity.ru/content-2/service-manual-notebook-HP-Compaq/service-manual-HP-Pavilion-dv4.pdf
page 123 (131 of 196) i can tell you i think you have change display setting.
Hi I think you have changed the setting of your monitor better way is tack out the battery from laptop unplug it . I think many cased of it is you need to put your setting back you mite of set it to loge to a HDMI OR VGA a monitor port have a look where you reset it.