Completely dead, no power! no light on magsafe Need help!

Bought this macbook, was told the macbook wouldn't turn on because of a little water damage. i opened the macbook and saw just a little corrosion and lots of dust, after cleaning every thing with alcohol and air duster, i fitted a new working keyboard, but the macbook didn't turn on, no magsafe light.

I then replaced the Dc board and the battery, still nothing, the logic board seems completely dead.

i noticed that the tiny component right on the top, next to the lvds connector is missing and a fuse next to it is also missing

the component that is missing has 3 legs on one side and the other side has 2 legs, right next to it, there is suppose to be a tiny fuse (on the right) which is also missing. if you see a picture of the logic board, you will understand what im saying.

Could it be the reason why its not showing any magsafe light?

I really want to get this macbook working. i have some knowledge of multimeters and soldering, i also have all the rework and solder equipment,

Im just not good at identifying components, i can upload some pictures, i just need help finding the component on mouser or any other website that sell them.

Thank you :)