Circuit schematic titled Alpine 15, revision A00, provided as a 3.35 MB PDF. The name gives only a project code name and revision, with no brand, model or board number, so the target laptop has to be confirmed by comparing the title block and layout with the real PCB. After a match, the diagrams help trace power rails, read the startup sequence, locate test points and narrow down shorted components. Open it in a PDF viewer and use text search to jump to specific net names or chips.
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 @ITHINKHS. 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.