Solved! Laptop Black Screen Issue

[Henry4560]

Hey Everyone,

First off thank you for taking the time to read this issue thread, any help would be greatly appreciated. So I currently have three laptops siting at home collecting dust because it is inoperable. I decided to take a crack at fixing it again, but would like to know what exactly the issue is first. Basically all three laptops are having the same problem. When I turn it on, I can hear the fans, keyboard and everything else running except for the screen itself. At first I thought maybe the hard-drive crapped out, but on rare occasions if I just leave the laptop turned on, the screen actually turns on. This takes about an hour, but doesn't happen every time. I did the usual battery checklist for troubleshoot, the reseating of ram, and even bought a new hard-drive to test, but no luck. I feel as though it could be a screen problem, but again it does turn on under rare occasions. My last guess is that there is some motherboard issue. What are you guys thoughts on this?

 

[Rhinofart]

Do they come up with external screens attached? If so, you have a DC-DC inverter board issue. Cheaper to get a new laptop, or sell that one on eBay for parts. With an external monitor attached, there should be a FN + some other key combination to make the laptop switch between internal (laptop screen only), external, or mirror.