Quanta NL6 documentation at revision 1A in a 686 KB RAR archive. The name gives no laptop brand, model or contents list, though archives like this usually hold a schematic. Quanta, a large notebook ODM, marks its boards with project codes like NL6, and related variants such as NL6D can differ in circuitry. Use the drawing to follow power rails, check component placement and find signal test points during board-level repair. Compare the PCB marking and revision carefully before relying on it.
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 @IT_SERVICE_WORLD. 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.