What type of signal paths do schematic diagrams represent?

Schematic diagrams primarily represent signal paths, which are essential for illustrating how electrical signals flow through a circuit. These diagrams use standardized symbols to depict various electronic components such as resistors, capacitors, diodes, and integrated circuits, along with the connections between them. By focusing on the signal paths, schematic diagrams help technicians understand the functionality of the circuit, diagnose issues, and implement modifications.

While power paths and ground paths are also important in electronic circuits, they are typically represented within the broader context of signal paths in a schematic. The key focus of a schematic is to convey the logic and function of the signals and components involved in the circuit operation. Safety paths, while critical in certain designs, do not fall under the typical representation of a schematic diagram. Therefore, the correct answer indicates the primary role of schematic diagrams in depicting the flow of electrical signals through electronic systems.