The SFAV45 part in its XS variant is covered by this 107 KB PDF datasheet. The file name holds only that code, leaving the vendor and host device unspecified, so the document itself must confirm them. A technician would use it to read pin functions, supply requirements and absolute maximum ratings, helpful when checking measured voltages or picking a compatible substitute. It opens in any PDF reader. With many sibling SFAV sheets differing by a number, double-check that 45 and XS match the part you are working on.
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.