Question HP Pavilion DV9700 Black Screen Issues

simonshepard

Reputable
Apr 22, 2016
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As the title says the laptop screen is black no beeps and the system seems to function as normal there is just no display.

I thought this might be the dreaded "DEAD GPU" thing with this line of notebooks however I plugged it into my HDTV with HDMI and it works through that with out issues.

The funny part is sometimes when I do this it fixes the laptops screen when restarted and functions as normal then after a few more restarts or turning it on and off it goes black again.

I've reset the bios, removed the CMOS battery and laptop battery held the power button down for 30 seconds, removed ram all the usual steps.

Sometimes the screen works and sometimes it doesn't turn on at all still connects to an external display fine.

I used the light on my phone to see if it was maybe just making the screen really dark couldn't see anything just pure black.

So I'm wondering if its any the following.

the LCD
the inverter
The display cable connected to the mobo

Anyone have any ideas?
 

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