PDF, 52.3 KB, documenting the 2SA1177, a PNP bipolar transistor in the JIS 2SA numbering scheme. Since the name holds nothing beyond the part number, the file should be treated as a datasheet even though the index types it as a schematic. Use it to confirm the pin arrangement and package and to read limits such as breakdown voltage, collector current and dissipation. With those you can check that a replacement or equivalent is suitable. Measure the original with a meter in diode mode to confirm the failure 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.