Schematic for Compal board LA-F841P at revision 0.1, in a 4.00 MB PDF; the name gives no laptop brand or model, so check the title blocks inside to identify the machine. LA-xxxxP numbers are used by Compal for boards built for brands such as Dell, Lenovo, HP and Acer. Use the diagrams to trace power rails, follow the boot sequence and confirm component values. Revision 0.1 is an early issue, so compare it carefully against the revision printed on your PCB, because differences in parts and rail layout are possible.
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 @notebookschematic. 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.