A 158 KB PDF datasheet titled SFTC-TTL, apparently relating to a TTL interface item in the same SF-prefixed product family as several display kits and cables; the name alone does not say exactly which panel or board it serves. Expect a pin table, wiring or connector drawing and electrical notes. It is useful for confirming signal assignments when connecting a TTL display to a controller and for checking continuity or replacing a faulty interface part. Compare part markings with the document before use.
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 @acodis_lcd_datasheets_EDID. Enginerys does not host this file.
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The standard format for schematics, block diagrams, power-sequence charts and service manuals.