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In this video, you’ll learn how to test a voltage regulator LD1117 with a multimeter step by step. The LD1117 regulator is a widely used low-dropout LDO linear voltage regulator found in laptops, TVs, power supplies, and other electronic devices. When it fails, you may experience no power, unstable voltage, or a complete shutdown of circuits.
What You’ll Learn in This Video:
The working principle of the LD1117 voltage regulator.
How to identify input, output, and ground pins.
Step-by-step method to test the regulator using a multimeter.
Signs of a faulty LD1117 and when replacement is needed.
Pro repair tips for electronics technicians and beginners.
If you want to master electronics repair and troubleshooting, this LD1117 voltage regulator testing guide is essential.

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