Covering the 2SD1134 transistor, this 43.0 KB PDF sits in the schematic category, yet its name is a bare part number typical of a datasheet. JIS designation 2SD signals an NPN bipolar transistor for low-frequency service. The sheet is useful for confirming the pin arrangement and checking the limiting values before replacement. If the exact part is unavailable, choose an equivalent with matching polarity and package and with equal or higher voltage, current and power ratings.
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.