I've tried many different cords and plugins. I got it for free so no loss. I opened it up and everything looked clean, nothing broken or burnt looking.
So I shined a light on it and you can barely see the screen but it is on so I think the backlight is out. Is this something that is fixable? Possibly at like a cellphone or computer place?
In most things like that, the backlight is embedded within the LCD screen, so the screen would have to be replaced. Very few computer or cell phone repair places would attempt to repair it since they have a list of what phones they repair and a pre-determined method for replacement. If you were close to me, I'd have a go at it, but you might see if any tech or nerdy friends can look at it.