What is usually the first step in troubleshooting?

The first step in troubleshooting is typically a visual inspection of the circuit to identify any obvious issues. This includes looking for broken wires, loose connections, or any other visible conditions that may affect the system's operation. This step is crucial because it allows the technician to gather essential information quickly and efficiently. By detecting visible problems initially, such as damaged wiring or misconnections, the technician can resolve straightforward issues without needing more complex testing or reference to manuals.

Starting with a visual check sets a solid foundation for further investigation if no apparent problems are found. If the initial inspection does not reveal any immediate concerns, the technician can proceed to other steps, such as testing components with a multimeter, consulting maintenance manuals, or replacing suspected faulty components. However, skipping the visual inspection might lead to overlooking simple fixes that can save time and resources in the troubleshooting process.