Quanta N61A motherboard files, board number DAN61AMB6F0 at revision B, packaged as a 1.89 MB RAR. The name carries no laptop or AIO brand, so verify against the code silkscreened on the PCB. Quanta, a major contract manufacturer, uses the DA-plus-project pattern seen here across many HP and other designs. The schematic inside is useful for diagnosing no-power faults, tracing signals between the chipset and connectors and checking protection circuits. Confirm the revision letter matches B, since layouts can differ between revisions.
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.