Lowercase-named PDF for the 2SA1834 transistor, 40.6 KB, filed among schematics. In the JIS scheme, the 2SA designation marks a PNP bipolar transistor. No further details such as package or revision appear in the name. Use the sheet to look up absolute maximum ratings and the pin layout before testing or replacing the part. Measuring the base-emitter and base-collector junctions with a multimeter diode range, then comparing against expected behaviour, quickly tells whether the original has failed.
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.
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The standard format for schematics, block diagrams, power-sequence charts and service manuals.