Reference sheet for the 2SC5356 in a 175 KB PDF; the name gives no device, board or revision. By JIS convention, a 2SC part is an NPN bipolar transistor for high-frequency circuits, which points to a manufacturer datasheet despite the schematic label. Look inside for breakdown voltages, maximum dissipation, hFE ranks and the lead arrangement. These figures guide junction testing with a meter and selection of a suitable substitute. Check the package type and printed code on the original part before ordering.
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.