Part number 2SJ596 is the only information in the name of this 29.9 KB PDF, which is filed as a schematic. The 2SJ prefix, per the Japanese JIS standard, identifies a P-channel FET, so the document is most likely a datasheet with ratings and package details. Use it to confirm gate, drain and source pins, check voltage and current limits, and compare candidate substitutes. Check the code printed on the component itself, since the name does not state a maker or variant.
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.