At 443 KB, this is the largest PDF in the group, covering the 2SK1544 transistor, likely with more curves or drawings. The 2SK prefix marks an N-channel field-effect transistor in the Japanese JIS/JEITA register; maker and package are not named. Technicians use such a sheet to confirm pin order, read absolute maximum ratings and choose a compatible substitute. Verify the original device marking and case style match before relying on these specifications.
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.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)