PDF reference of 286 KB for the 2SJ105, listed in the schematic section. Japanese JIS semiconductor codes beginning with 2SJ denote P-channel FETs, pointing to a manufacturer datasheet as the content. No brand or package is given in the name. The sheet serves for pinout lookup, ratings checks and comparison with candidate replacements; remember that a P-channel device needs a P-channel substitute with compatible gate threshold and identical lead arrangement.
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)