The 2SK2294 is the subject of this 140 KB PDF, catalogued as a schematic but in substance most likely a datasheet, as 2SK marks N-channel field-effect transistors under Japanese JIS registration. It should list breakdown voltage, drain current, RDS(on), switching data and the package outline with gate, drain and source positions. Repairers use it to confirm measurements and find a suitable equivalent. Another 2SK2294 version with an _1-5 suffix exists; verify the device marking before relying on the figures.
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.