ZIP archive of 7.03 MB named PA 6.0 CIRCUIT, apparently a set of circuit drawings for a unit called PA 6.0, possibly a public address amplifier, though no maker is given. The contents are not listed, so expect schematic pages or images that need extracting with any ZIP tool before viewing. Diagrams like these help trace supply rails, amplifier stages and protection circuits on a faulty unit. Because the name is sparse, check the device label and board markings against the drawings before relying on component values.
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 @pdf_servicemanual. Enginerys does not host this file.
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