Circuit schematic for the ASUS A3H notebook, 1.07 MB PDF; the SC suffix in the name most likely just marks it as the schematic set. No mainboard revision is given, so verify the revision silkscreened on the PCB matches the document. A repair technician uses these diagrams to trace DC input and battery charging, check the standby and main power rails, find pull-ups on enable lines and identify part references near a failing component. Open it in a regular PDF reader and use search to jump between net names.
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 @schematicslaptop. 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.