PDF of about 295 KB for the 2SK1827. In JIS part numbering, 2SK stands for an N-channel FET, so the content should be a datasheet rather than a board-level drawing. Nothing beyond the number is given in the name. Use the sheet to check pin order, drain current and breakdown voltage, and to compare on-resistance when looking for an equivalent. It opens in any PDF viewer. Before swapping parts, make sure the package and marking on the PCB really correspond to this transistor.
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.