39.6 KB PDF bearing the 2SB774 part number with an _E suffix whose meaning the name does not reveal. Although indexed as a schematic, a file for one component is normally its datasheet. The 2SB prefix in JIS numbering denotes a PNP transistor for low-frequency or power use. Technicians consult it for pin order, package type, collector current and voltage limits and hFE grading. Match the marking on the part, typically B774, before choosing an equivalent replacement.
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.