PDF of 223 KB for the 2SA1481 transistor, filed in the schematic category. Japanese JIS naming assigns the 2SA prefix to PNP transistors. Only the part number is given, without manufacturer or edition. Its size implies a fuller data sheet, likely with graphs and outline drawings in addition to the rating tables. In repair, consult it to identify leads, verify voltage, current and dissipation limits, and choose a cross-reference replacement. Match the physical marking and package before using the pinout.
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.