The 2SA1930 is covered in this 190 KB PDF, which carries no detail besides the part number and is probably the component datasheet rather than a schematic. JIS part codes beginning with 2SA denote PNP bipolar transistors. Open it in any PDF viewer to read the ratings table, characteristic curves and pinout drawing. When replacing the device, match package and pin order exactly and pick a substitute with equal or higher voltage, current and power ratings, checking the surrounding circuit for the fault that killed it.
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.