That could be the LCD, cables to/from and the motherboard. I'm guessing you are looking for which it is but I've seen it be any of the three. This work is usually done at the depot repair since the expense of changing all 3 parts means we buy a new laptop. In the depot we'll can swap one at a time and replace only the failed parts.
Hi,
I have a problem with my screen going suddenly black. HP have been of no help at all and I’m doing this out of frustration.
I have a:
Pavillion DV6
Product: WF649PA#ABG
DV6-2120TX
The screen is a LG model: LP156WH2 (TL)(Q1)
OS: Windows 32 bit 7 home.
The problem started sometime ago with the screen suddenly going black, it only happened occasionally and then as time passed would do it every few minutes. I could reset it by closing the lid to go to sleep and then logging in again.
I tried an external monitor and it works fine on that when screen goes black.
Shine a torch into black screen and its working away in the blackness.
Did a HP hard reset (battery out & all attached devises unhooked and pressing start button for 1 minute) and worked fine for 2+ days and then started old routine of every few minutes.
Researched problems on the net and come up with Display Inverter problems.
Started to strip screen apart looking for inverter and could not find one, but got the number of screen as above. After more research the net tells me I have a LED screen which does not use an inverter.
HP parts book lists a Display Inverter part # 488317-001 for my model. Now I’m getting confused.
If I don’t have an inverter will it be a faulty screen or something else? Since removing screen yesterday the black screen has settled down and only does it every hour or so.
Any input would be of assistance. Not really keen to upgrade to Win 10 at this stage!!

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