Lenovo TY100 archive referencing Compal board LA-2592, stored as a 937 KB RAR. The LA- prefix followed by four digits is the board numbering pattern Compal uses for its notebook designs built for many brands. The contents are not described, but a schematic is the most likely item at this size. Check that LA-2592 and its revision appear on your PCB before relying on it. Then use it to follow the power rails, locate test points, inspect the EC and BIOS area and track down shorts or missing voltages.
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 @generalschematics. 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.