Documentation for the HP Split x2 convertible, built on the Quanta W05 board, number DA0W05MB8E0, revision 1A, in a 905 KB RAR. The archive probably holds the schematic and possibly a boardview. Use it to follow battery and charging paths, the dock connector signals and the system rails when diagnosing a no-power fault. The DA-prefixed number follows Quanta's PCB coding. Verify that the number and revision on your board match before measuring against the drawings.
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.