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    Assistance with the voice changer using AP8072 IC

    Yeah, I tried that and nope. The speaker just produce nosie and the mic doesn't work.
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    Assistance with the voice changer using AP8072 IC

    Okay, I had check the condenser mic and it's not drawing any current since the Zener diode voltage remained the same if I take out the mic and put it back. But I do notice that if I took out the RTS0072 chip. The voltage increased a bit but when I put it back, it decreases. Unless it's supposed...
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    Assistance with the voice changer using AP8072 IC

    Okay, I had check the condenser mic and it's not drawing any current since the Zener diode voltage remained the same if I take out the mic and put it back. But I do notice that if I took out the RTS0072 chip. The voltage increased a bit but when I put it back, it decreases.
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    Assistance with the voice changer using AP8072 IC

    Thank you all for the assistances. Yep, I had fixed the problem with the Zener diode and now the voltages at the pin 11 &12 are now 3.793 v but the device still doesn't function as intended.  Is the voltage still too low?
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    Assistance with the voice changer using AP8072 IC

    Okay thank you. I got back and I measured them. Speaker: 6.136V Pin 6 of LM386: 6.169V Mic: 1.585V Pin 11 & 12 of the RTS0072: 1.693V Pin 1, 2, 8, and 9 of the RTS0072: 0.797V Ground connections: Around 0.000V I can see that there's something wrong around the yellow area but I'm not...
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    Assistance with the voice changer using AP8072 IC

    A photo of the schematic and my prototype.
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    Assistance with the voice changer using AP8072 IC

    Hi there, thank you for replying. I had switched the polarity of the MIC and they still don't work either way. I also had adjusted the potentiometers to a low setting unless I connect it wrong. I took a photo of my prototype and hopefully you could see it well and also my BOM.Bill of Material...
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    Assistance with the voice changer using AP8072 IC

    Hi there, thank you for replying and willing to assist me. I will provide the schematic of the circuit and a closeup photo of my prototype as soon as I get back. I will also upload the list of components I used to prototype the device. The circuit is based on a voice changer project which can be...
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    Assistance with the voice changer using AP8072 IC

    I'm currently prototyping the device using the breadboard and I replaced the AP8072 IC with RTS0072. While testing it, the speaker only produces nosie and when trying to speak into the microphone, it doesn't work. I rechecked the wiring and the components but they're all in good condition and...
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