Laptop schematic in PDF form for the G400. The name lists the Compal project code VIWGR and the board number LA-9631P. LA-prefixed numbers follow Compal's motherboard numbering, and the ODM built this board for the brand that sold the G400. Technicians use the diagram to trace the charger and DC-in circuit, the system and CPU rails, and the EC and BIOS connections. Check that the number on the PCB reads LA-9631P and confirm the revision page before relying on the values.
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 @afsschematicfree. 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.