Full motherboard diagram for the Quanta RJ1 design at rev 1A, a PDF of roughly 931 KB. No laptop brand is named, which is common with Quanta files, because Quanta engineers boards that are sold under other brands' names. The schematic is useful for following each power rail from its regulator, identifying connector pinouts and finding components when a board shows a short or will not power on. A normal PDF reader opens it, and searching for net names saves time. First check that the PCB silkscreen shows RJ1 and revision 1A.
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.