Datasheet-style PDF of 275 KB identified only as 24c16, the common 16 Kbit (2 KB) I2C serial EEPROM. No vendor, board or device is given by the name. The part often stores EDID, configuration or mileage data, so repairs usually involve reading, editing or rewriting it with an EEPROM programmer. The document supplies pinout, memory organisation, page-write size and timing. Match the marking on the actual chip against the sheet and save a backup of its contents before changing anything.
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.