iPad mini Wont' turn on at all. Hardware issue? Searched everywhere

Challenging question for you pros.

I inherited a non working iPad mini (first gen). It seems to have been dropped (the screen had a hairline crack on it). Aside from the crack, it's in pretty good shape. I don't know much about the history of it. I want to get it working but don't know what it needs fixing. I tried all the reset options with the buttons, charging it and everything possible (I've searched everywhere). All I get isa black unresponsive screen. It must be a hardware issue.

Does anyone have an idea of what it could be? Could it be the LCD, Battery, Digitizer? Possibly a common issue.

I've swapped out a bunch of different iphone screens in the past and am good with surgery on these devices. I don't have much to lose but don't want to toss away money getting a screen to find out that it doesn't work anyway. Any help would be appreciated.