Notebook mainboard schematic for Quanta project UW1, about 1022 KB as a PDF. NB in the name most likely just means notebook, and no revision, brand or chipset is given, so identification rests on the code printed on the board. A schematic like this lets a technician follow the power tree, check enable and power-good signals, read connector pinouts and find the components on a shorted rail. Before trusting values, compare the board revision on the PCB with the one in the title block.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @abgm_manutencao_esquemas. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.