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Hello everyone, in this lesson we will talk about the replacement of crystal oscillators.

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The principle of crystal oscillator replacement is very simple.

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It must be replaced by a crystal oscillator with the same frequency and appearance.

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The same appearance is very easy to understand

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Crystal oscillators have two legs and four legs

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If the appearance is inconsistent, it will not be able to be welded, let alone replaced.

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The same frequency substitution is also very easy to understand

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The crystal oscillator is used to output the clock frequency

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If the frequency is different, the circuit must not work properly.