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In this lesson, we will talk about the audio power amplifier chips

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Audio amplifier chip is also known as ringtone amplifier chip,

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or small audio

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It amplifies the power of the external sound and sends it to the speakers

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For example,

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the chip that makes the speaker sound when we play music is the audio amplifier chip

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It can also restore sounds and play ringtones for incoming calls

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How do we quickly find the audio amplifier chip in the mainboard?

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It has large inductors,

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large capacitors, and two black insurances surrounded

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Some mobile phone chips are designed on the charging connector small board

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In the picture on the left, this is a small chip

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Generally, there are at least three large capacitors

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There is a large inductor and two insurances

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These two insurances are actually inductor beads

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This is its appearance

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From the appearance, we can roughly judge that this chip is a ringtone amplifier chip

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The two pictures show the two on-board ringtone amplifier chips

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This is the ringtone amplifier chip,

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this is an inductor here, there are three capacitors here

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There are two small insurance inductors,

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which are magnetic beads

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In the picture on the right,

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we can see that the audio chip has 4 capacitors,

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a large inductor, and two brown inductors

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In this picture, where is the audio chip?

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This is a charging connector interface,

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also called a charging connector small board,

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with a charging connector welded on it

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This is its audio amplifier chip

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There are two black fuses around the chip,

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a large inductor, and two large capacitors

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This is the ringtone amplifier chip welded on the charging connector small board

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Ok, that's it for this lesson