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Monday, September 8, 2025

Logic probe to check short circuit

The following took place on 22 January 2025 at noon, when I finally had the opportunity to use the logic probe, which was borrowed from the Digital Lab with the assistance of one student. After being suggested by the lecturer as troubleshooting tool. I successfully demonstrated its use to a student experiencing an unstable display on their SDK V4 board, identifying the short-circuited area that required soldering to achieve a more stable connection.

The student who borrowed the logic probe was unfamiliar with its operation. This highlights the importance of understanding how to use advanced tools—having the right equipment is ineffective without the knowledge to operate it properly.

The soldering on the IC socket leads in the circular area appears insufficient.

Following the demonstration, the rest of the students became motivated to repair the connections on their own SDK V4 boards.

I encourage them to continue learning and experimenting with the logic probe to enhance their skills.

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