The 2SK2792 part number appears here with an unexplained 1-5 suffix, possibly a page range or edition marker. The 137 KB PDF is labelled as a schematic, yet the JIS 2SK prefix identifies an N-channel FET, so a datasheet is the likely content. Use it to check pinout, maximum ratings and characteristics when replacing or substituting the transistor. A copy without the suffix is also catalogued. Compare the actual part marking and footprint on the board before relying on either version.
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.