Archive for the ECS U50SI1 notebook mainboard, 628 KB in RAR format, with no revision given in the name. Expect a schematic inside, though the name does not say so outright. Because no revision is stated, compare the drawings with the actual PCB markings and part placement before relying on them. Unpack with 7-Zip or WinRAR and use the material to follow DC-in and battery charging paths, check standby rails, find the embedded controller and track down shorts that keep the laptop from powering on.
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.