PDF of 130 KB for the 2SK2094, listed as a schematic and most likely a datasheet for this JIS-designated N-channel FET. The name carries a 1-5 suffix whose meaning is not stated; it may be a revision or a page range. A plain 2sk2094 version of about the same size is also indexed. Read it for absolute maximum ratings, on-resistance and pin assignment, and match the board marking before ordering a replacement.
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.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)