Google, IBM & Meta Certificates — All 10,000+ Courses at 40% Off
One annual plan covers every course and certificate on Coursera. 40% off for a limited time.
Get Full Access
Learn to locate and test the main power rail in laptop motherboards using a power supply in this 25-minute electronics repair tutorial. Master essential diagnostic techniques for identifying power distribution pathways and verifying proper voltage delivery to critical components. Discover practical methods for using external power supplies to troubleshoot laptop power issues, including proper connection procedures and safety considerations. Gain hands-on knowledge of power rail identification, voltage measurement techniques, and systematic approaches to isolating power-related faults in laptop repair scenarios.
