PDF datasheet, 38.7 KB, for the 2sb1568 transistor, catalogued under schematics. Japanese JIS numbering identifies 2SB devices as PNP bipolar transistors intended for low-frequency use; nothing further about the package or vendor appears in the name. Typical repair use is checking the pinout before in-circuit measurement, confirming absolute maximum ratings, and reading the hFE ranking and marking code. When replacing, choose a part with the same polarity and footprint and ratings at least equal to the original.
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.