The system is likely too new for anyone to have published one.  And in most cases, a schematic is useless due to the absence of a supply of replacement parts, and the cost of labor for the repair.   A replacement system board will turn out less expensive.

Hello Krypton, 

The system is like 2,5 years old, and i find online Schematic diagrams for newer models, And it isnt useless because im asking for it and i am in a desperate need of it to fix the Motherboard, and a replacement system board will turn out to be more expensive than of a simpel fix.

your commend dont answer any of my question, and is pretty useless 
still thank you for taking your time to answer me