Schematic PDF covering the ASUS A3N and A3L laptops, about 1.17 MB. The name lists only the model names, with no board number or revision, so confirm the mainboard identification yourself before relying on it. A circuit diagram like this lets a technician trace the power sequence, measure standby and main rails, find the charging circuit and identify components when chasing a short or a dead board. Open it in any PDF viewer; text search helps find nets and reference designators where the file is not a scanned image.
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.