Opening part of a five-piece 16M-DRAM PDF collection, 1.26 MB, classified as a schematic. The name refers to 16-megabit dynamic RAM in general and does not name a maker, specific part or package. A first section typically carries the overview, pin description and block diagram, which helps when identifying supply, address and control pins on a memory device under test. Any standard PDF viewer opens it. Confirm against the chip markings on the board before applying its data to a repair.
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.