PDF for the KA4558, a dual operational amplifier in the KA series, equivalent in function to the familiar 4558 dual op amp, size 121 KB. It is categorised as a schematic although it is a part datasheet with pinout and electrical characteristics. The 4558 is common in audio preamps, tone controls and signal stages of consumer equipment. Use the pin diagram to locate both amplifiers, measure supply rails and check for distorted or missing output. Confirm the package type and pin count printed on the board before substitution.
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.