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When a PCB fails, the visible symptom is rarely the real fault. A blown fuse, no output, low voltage, overheating MOSFET, or a dead board usually starts deeper in the power path.
I trace the root cause by checking shorts, voltage rails, startup sequence, feedback loops, and switching sections. That same workflow connects all my services PCB debugging, SMPS troubleshooting, component failure analysis, and Arduino board diagnosis.
The goal is simple: find why the board failed, identify the faulty stage or component, and give you a practical repair path that prevents the issue from returning.... Mehr lesen