Thank you for taking a look at my problem.
My laptop will not boot. After pressing the power button, the power light and hard drive "thinking" light will come on, the fans go, sometimes the screen backlight flashes but ultimately the screen remains black. No cursor, no backlight, nothing. After a varying amount of time it will just stop thinking or doing much of anything.
I don't believe it to be the screen, as there are no start-up sounds. I have checked the internal connection of the screen to the motherboard, but that seems fine. I also have attached to an external monitor, but no luck.
I've also troubleshot the power, as far as trying to power on without the battery installed, or leaving it to charge for a while before turning it on, and trying out a power cycle (Removing the battery and AC adapter, holding the power button to deplete any stored power, leaving it a few minutes and plugging it in again) but that doesn't seem to be the issue either.
I've had issues similar to this before, usually after a hard crash or system freeze (I think due to RAM shortage) where the laptop would eventually turn back on again if I kept turning the power on and off. In those cases, it would "think" with a black screen, sometimes for 20-30 min, and then power off by itself and then power back on and the screen would work.
The power-down preceding this particular instance was a routine restart while installing a windows update. Nothing is getting it to come back on this time around.
At this point, I'm guessing its some sort of hardware failure, but short of buying new parts at random till I find out what is not working I'm rather at a loss of what to do next.