Toshiba Satellite archive in RAR form, 1.08 MB, for the board coded MA10 at revision 2.2. The file name does not specify the exact laptop model or what is inside, so extract it and verify that the board label and revision printed on the PCB read MA10 R2.2. Packages like this typically contain a schematic for tracing power rails and signals, checking regulator enable lines and finding parts on a short, which a technician pairs with a multimeter.
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 @alischematics. 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)