Compal schematic PDF for motherboard LA-5681P, revision 1.0, 3.32 MB in size; the name does not specify the laptop brand or model. Compal identifies its designs with LA-xxxxP numbers and builds for several notebook brands. The diagram lets you follow the power-on sequence, check rail generation, find feedback resistors and trace signals between the chipset and connectors. Since another revision of this board exists, compare the revision printed on your PCB with 1.0 before using 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 @pkbiosbdv. 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.