I have HP pavillion dv 7 laptop, It comes on but has black screen, caps light blinking, put new power cord, it sounds really s

Brenda_65

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Jul 22, 2017
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My HP Pavillion dv7 has black screen, I changed the power plug, because the other one made a staticy noise. I can hear everything running, but screen is black and caps light is blinking and the f12 light is red. Thanks for your help.