What Are Block and Schematic Diagrams? | Reference wwwrence›Data GraphsSchematic diagrams show detailed drawings and information of the individual parts that a system or machine consist of and how they interact. Block diagrams describe a Block Diagram vs. Schematic - not the same | Tom's Why do so many people advertise BLOCK DIAGRAMS as SCHEMATICS. They are not the same. Watch out for scams. I was just looking for an actual schematic of a..