What step focuses on the analysis of circuit failures during troubleshooting?

The step that focuses on the analysis of circuit failures during troubleshooting is Failure Analysis. This phase is crucial as it involves diagnosing the root causes of problems in the circuitry. During Failure Analysis, technicians utilize a systematic approach to determine why a circuit is malfunctioning. They often gather data from various symptoms and then trace those symptoms back to specific components or sections of the circuit that may be faulty.

Incorporating tools such as multimeters, oscilloscopes, and schematics, the focus is on understanding the failure mechanisms at play—whether it's due to component defects, environmental factors, or design flaws. This thorough analysis is essential for effectively addressing the issues and ensuring that repairs are accurately targeted. Thus, it represents a foundational step in the troubleshooting process that ultimately guides subsequent actions like repair techniques or signal tracing.