Part 1SS370 is the sole identifier in this 66.2 KB PDF name, which suggests a data sheet for a single small-signal silicon diode, the meaning of the 1SS prefix in JIS numbering. Although filed among schematics, it will not show a board layout or power rails. Its value lies in the pinout, marking code, ratings and outline drawing used to confirm a replacement part fits electrically and mechanically. Read it with any PDF viewer and compare the package against the original diode 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.