PDF datasheet, 42.7 KB, for the 1N5392 diode, categorised as a schematic though it describes a discrete component. It belongs to the 1N539x series and is probably the shared family document. When a rectifier in a power supply or adapter is suspected, this sheet gives the reverse voltage, current and surge ratings needed to judge a replacement. Open it in any PDF viewer. Always pick an equivalent with equal or higher ratings and the same package style, and check orientation before fitting.
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.