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  3. 8541737907

Gikfun 8541737907 User guide

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Circuit schematics：
1、 Weld power amplifier IC first and then install the resistance capacitance and other components. The long pin of the capacitor is positive pole, the short
pin is the negative pole, and the negative pole corresponds to the shadow part of the circuit board.
2、 RP is the LED music level display sensitivity adjustment potentiometer, and adjusting it can change the sensitivity of LED.
3、 Install shell: tear off the protective film of the shell, and fix the shell with screws.
Wiring diagram：
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