Schematic in PDF format, compressed into a 2.86 MB RAR archive, for motherboard 14058-2, a number in the Wistron numbering style; the -2 ending suggests a later revision than -1. No laptop model or brand appears in the name. Use it to follow power rails, read the power-on sequence, check signals between controllers and confirm component values during repair. Make sure the number on your PCB ends in -2, since an earlier revision can differ in circuitry and part references.
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 @cyberlanelectonik. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.