Named after the 2SJ190, this 93.3 KB PDF sits in the schematic category but, given the JIS 2SJ prefix for P-channel field-effect transistors, should contain the component datasheet. Technicians rely on such sheets to confirm which pin is gate, drain and source, to read voltage and current limits and to judge whether a replacement is adequate. The file name states nothing about the manufacturer or package, so cross-check the marking and outline of the part being replaced.
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.