fix microphone not singing I how to check basic voltage levels I 

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#NGOPONGKDX Ngo Phuong KDX channel shares how to fix the speaker microphone that doesn't sing and how to check basic voltage levels for novices as well as electronic enthusiasts like me. Just sharing the experience, if there are any mistakes, please ignore it and give me your comments below, I will draw experience for the next videos to be better, thank you very much for following. Watch my videos recently.
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Sharing the simplest electrical boards for beginners to refer to to apply it to the most practical things as well as those who love electronics without learning conditions, here are the videos for you. please refer.
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═ 👉👉👉📽️🎥📽️ Recommended video:
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