Xyz 1.1 plus not heating hot end.

Just got a used 1.1 plus. And i noticed it wasnt heating, i used a voltage meter to check for power and i dont think power is making it to the hot end. Does anyone have board diagrams and wiring schematics? Where could i get new wires if im not getting power from my board? Sorry if this is a repeat question but trying to find an answer in the 100s of pages isnt helping.

Thanks!!