Quanta BD3A board documentation, part number DABD3AMB6D0, revision 3C, packed into an 841 KB RAR. The board number follows Quanta's DA...MB pattern and no laptop brand is stated, so the PCB marking is the key reference. Expect a schematic, and possibly boardview data, for tracing rails, checking MOSFETs and finding where a short to ground originates. Revision 3C matters because earlier revisions may differ in parts and nets, so match it before working.
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.
7-ZipWinRARThe Unarchiver (macOS)