Won't power on, replaced DC-In board

I had the same problem with the scalding hot MagSafe, but I must've killed something in my Mac, because now it won't turn on.

I replaced the DC-In Board and am not seeing the light on my power adapter light up at all.

I've used two different power adapters with the same result. When I did replace the DC-In Board, I failed to connect the keyboard ribbon because I didn't have the battery's ridiculous Tri-Wing Drivers. What would be the next logical step in order to get the device to turn on?

I'm ordering the tools I need for the battery so I can connect the keyboard, but would that even matter for booting the Mac?

Do I need to replace the Logic Board?