Second upload of the Sony VAIO VGN-AW series package for motherboard MBX-194, a 1.75 MB RAR archive identical in name and size to the other copy. Sony assigns MBX numbers to its VAIO boards, and the label printed on the PCB is the quickest way to confirm a match. The contents are not described, but such archives typically carry the schematic used for tracing rails, checking power sequencing and pinpointing components on a shorted line. Open it with any RAR-capable tool such as WinRAR or 7-Zip before viewing the documents inside.
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.