PDF schematic of about 856 KB for the Compal LA-2201P laptop mainboard. Only the board code is present in the name, so the brand, model and revision must be confirmed from the board itself. Compal assigns LA-xxxxP numbers to notebook boards it builds for multiple brands. An older design like this is still useful for tracing power regulators, following the power-on chain and identifying components around a short or burnt area. Check that the revision printed on the PCB matches the document before relying on 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 @alischematics. 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.