This 399 KB PDF, named 16M-DRAM with a trailing 6, is indexed as a schematic and appears to be one part of a larger 16-megabit DRAM document or a related variant. The name gives no manufacturer, part number, board or revision. Content of this kind typically includes pin assignments, timing parameters and package information for the memory device. Read it alongside the main 16M DRAM file, and confirm the actual chip marking before using its data for probing or replacement.
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.