Single-part document for the 2SK1426, supplied as a 101 KB PDF and indexed as a schematic. The Japanese JIS 2SK code designates an N-channel field-effect transistor; the name does not indicate manufacturer or package. Datasheets of this kind list pinout, absolute maximum ratings and electrical characteristics. Those values are what you compare when testing a suspected shorted transistor, selecting a substitute, or confirming correct orientation on the pads before reflowing a replacement part.
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.