A 119 KB PDF carrying component data for the 2SA1404, filed as a schematic in the index. Japanese JIS numbering assigns the 2SA prefix to high-frequency PNP transistors. No vendor, rank or package code appears in the name. When a stage fails, the sheet lets you check the lead order on the footprint, look up voltage, current and power limits, and confirm that a cross-reference part from another maker shares the same outline before you solder it onto the board.
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.