The 2SB767 is covered by this 42.9 KB PDF, whose name adds only an _E suffix that cannot be decoded from the name alone. It is listed as a schematic, yet a file for a single part number is almost certainly a datasheet. JIS numbering gives the 2SB prefix to low-frequency PNP transistors. Use it to confirm which pin is base, collector or emitter, the package style and maximum ratings, and check the marking B767 on the transistor before swapping parts.
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)