Lower-case filename for the 2sc4726, a 60.4 KB PDF listed as a schematic. The number fits the Japanese JIS pattern where 2SC designates an NPN bipolar transistor, so treat it as a component datasheet. The name holds nothing beyond the part number. Its practical value lies in confirming base, collector and emitter positions, checking voltage and current limits, and cross-referencing substitutes; verify that the marking on the faulty part really corresponds to this number first.
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.