Schematic for the Compal LA-4772P motherboard with the KHLB2 project code, provided as a 1.8 MB PDF. The laptop brand and model are not in the name, so match the board number silkscreened on the PCB before use. Compal uses the LA- prefix with a trailing P for its notebook mainboard projects. Any PDF reader opens the file, and it serves for tracing power rails, checking regulator and chipset supply circuits, locating test points and finding a shorted part. No revision is stated, so check the PCB label carefully.
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.