Component documentation for the 1SS384, a 68.8 KB PDF in the schematic category. The name provides only the part number, so no device, brand or board revision can be stated. The 1SS code is the Japanese designation for small-signal silicon diodes, which points to a datasheet with ratings, characteristics, marking and package outline. Board-level technicians use it to decode marking codes on tiny SMD parts, verify polarity and pick a suitable replacement. Check that the package fits the PCB footprint first.
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.