4-Channel Relay Driver Circuit and PCB Design
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3.3K views · 35 reactions | To check a PCB relay, inspect it visually for damage, then use a multimeter. Measure coil resistance; it should match specs. Apply voltage to the coil and listen for a click. Check continuity across contacts when energized. Replace if faulty. #PCBRelay #RelayTesting #MultimeterUse #ElectronicsRepair #CircuitTesting #TechTips #DIYRepair #RelayCheck #ElectronicsBasics #Troubleshooting #careskillsacademy | Care Skills Academy | Facebook
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3.3K views · 35 reactions | To check a PCB relay, inspect it visually for …
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