Datasheet in PDF form for the 2SK2962, 385 KB in size and catalogued as a schematic. The 2SK series denotes N-channel FETs registered under the Japanese JIS scheme, so the document covers one discrete part. Use it to look up absolute maximum ratings, on-resistance and package details, which guide both fault testing and selection of a cross-reference. A quick diode-mode check across the terminals, guided by the pinout here, shows whether the transistor is shorted.
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.