Component sheet for the 2SB1446 transistor, a 44 KB PDF with an _E suffix that probably signals the English edition, catalogued in the schematic category. Japanese JIS numbering assigns the 2SB prefix to PNP low-frequency transistors. No further details appear in the name. Use it to confirm which pin is base, collector and emitter, check voltage and current limits, and validate a replacement before fitting; also confirm the original component marking matches this exact number.
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.