A schematic diagram for Dell hardware (board LA-G714P). Shared as “dell-inspiron-3584-lag714p-r10-schematic.pdf” — a .pdf file, 3.20 MB.
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 @cidschematicandboardviewofficial. 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.