Schematic in PDF form for the Compal-designed board LA-A481P, packed in a ZIP archive of about 1 MB. The name gives no laptop brand or revision, so identify the model from the board itself. LA-xxxxP is Compal's ODM numbering pattern, used on boards it builds for several laptop brands. A technician uses these pages to trace power rails, follow enable and power-good signals, and find which component feeds a shorted line. Open it in any PDF reader and confirm the revision on the schematic matches the one printed on the PCB.
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 @schematicslaptop. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.