Compaq CQ62-219WM Showing black screen AFTER replacing it.

So I guess my question is pretty simple.  When I replaced my customer's screen on their COmpaq- CQ62-219WM and it showing up black.  When I shine a flashlight in it I can see the start menu and whatnot.  That means that I need to file a RMA right? I am guessing because the blacklight is out.
This question was solved.
View Solution.

I found that pressing on the motherboard at a certain point the backlight turns on, which makes me think of a false contact in electronic components, maybe you can resolder using hot air welding to renew, but this procedure has the risk of damage plastic or hot components are out of place, take care.
I am a computer technician for over 20 years.

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