A short 87.3 KB PDF for the 1SS403. It sits in the schematic category but reads as a component datasheet, because 1SS is the Japanese designation family for small-signal silicon diodes. No laptop model, brand or board revision appears in the name. Repair technicians open such a sheet in any PDF viewer to check forward voltage, reverse ratings and the SMD marking code. That makes it easier to identify an unlabelled diode on a board, or to judge whether an alternative part with similar ratings will work.
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 @cyberlanelectonik. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.