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Bluetooth speaker disassembly [Copy link]

 

This is a typical "three-no" Bluetooth speaker with a unique shape. It supports Bluetooth, FM, audio input, and TF. It has multiple functions and a loud volume.

The knockoff speaker is naturally not complex in design, and the disassembly steps are not complicated. First, you need to remove the front panel to expose the screw holes. The front panel is clamped into the screw holes by studs, and there is no buckle to fix it. After disassembling, you can also see that two RGB LEDs are used.

By removing 8 screws, the speaker can be easily disassembled.

There are two speakers, a 18650 battery, and a PCB board inside the speaker. There is nothing else. It is very simple.

The PCB is a double-sided board with a single-sided layout, and there are three chips on it: Bluetooth, charging, and power amplifier.

The main control chip is AC20BP, which supports Bluetooth 5.0.

The power amplifier is HHA2018, 5.3W mono class AB/D amplifier.

The charging uses a 4054, 500mA lithium battery linear charging chip.

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This headlight is very impressive.   Details Published on 2021-5-31 15:07
 
 

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At first glance, I thought it was a Mazda headlight.

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射频【放大器】

 
 
 

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HAA2018AB/D class switching amplifier

 
 
 

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These two big eyes are bright and lively.

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加油!在电子行业默默贡献自己的力量!:)

 
 
 

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This headlight is very impressive.

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默认摸鱼,再摸鱼。2022、9、28

 
 
 

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