Repair archive for the JE50 SB project, board number 10338-1M, as a 4.85 MB zip; MB in the name denotes the mainboard. The five-digit dash numbering follows the Wistron ODM pattern, and Wistron boards ship in laptops of various brands. Contents are not listed, but this size often means a schematic, possibly with a boardview. Check whether the suffix M on your PCB matches, since variants can differ, and then use the material to trace power rails, signals and component placements.
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 @ITHINKHS. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.