Short 49.9 KB PDF document for the 2N6284, a JEDEC-registered discrete semiconductor, catalogued as a schematic though it is most likely the part's datasheet. Nothing else is stated in the name, such as the manufacturer or revision. Sheets of this kind give the pin assignment, package outline, absolute maximum ratings and characteristic curves. Use it to check a suspected shorted or open device with a meter, or to choose a substitute. Several makers publish data for the same 2N number, so ratings can differ slightly.
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.