I employ a systematic approach to troubleshoot efficiently. First, I review the PCB's schematics, layout, and bill of materials to refresh my understanding of the design. This helps identify potential weak points and enable targeted investigation. Next, I assess the symptoms - in this case, the specific failure modes and any error messages or abnormal behavior. Applying the 'Divide and Conquer' strategy, I methodically isolate the faulty section or module by disconnecting or decoupling subsystems, monitoring the PCB's behavior after each step. This allows me to narrow down the problem area.

To troubleshoot a faulty PCB under pressure, start by visually inspecting for physical damage, burnt components, or poor solder joints. Use a multimeter to check power supply levels and continuity. Test suspected components like resistors, capacitors, and ICs for failure. Trace signals on critical circuits using an oscilloscope or logic analyzer. Isolate sections of the PCB to narrow the issue. Cross-check with the schematic to identify mismatches. If repair isn’t possible quickly, consider substituting the board or creating a temporary bypass to maintain project progress. Stay calm, prioritize issues, and document steps to ensure efficiency.

Stay calm. Visually inspect, use your diagnostic tools. If issue is not detected instantly, remain calm, take a break, refresh, research & come back to it. You will definitely resolve it.