Master the Laptop Charging Circuit FAST - Easy Guide to Fixing Motherboard Charging Issues Part 2

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Understanding how a laptop charging circuit works is the first step toward diagnosing and fixing charging issues. In this video, we break down each stage of the charging path from DC jack to battery, covering key components like the charging IC, MOSFETs, resistors, and protection diodes. Whether you're a beginner or pro, this clear, real-world explanation will help you master power rail diagnostics, signal flow, and common failure points.
Voltage from the DC input to the battery
Use a multimeter for real-time diagnosis
Testing Double Diode.
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