The 2N6794 PDF, around 129 KB, sits in the schematic section but its name holds only a JEDEC semiconductor number. No host equipment, revision or board code is stated. Content is most likely a component datasheet with maximum ratings, characteristic tables and a mechanical outline. It helps when locating the correct pins for measurement, judging whether a device has failed, and selecting a substitute. Compare the case style and markings on the actual part before relying on the data.
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.