I just bought a Bluetooth receiver and whenever I connect it to the radio it started to make some weird noises like beep constantly. I then decided to take a look to this problem on the internet and the solution that I found was to connect it to a 6V supply(https://www.youtube.com/watch?v=_JupcaTRKYk), but if I connect it to 6V it randomly turns off, which didn't happen on the normal connector (5V). What can I do to solve it? I'm new in electronics so maybe you can give me a hand on this. Here is a diagram of the Bluetooth receiver and some specifications: And my power supply is a modified cellphone charger which I change the Zener diode for a 6.2V one: input:100-240Vac; 50/60Hz; 0.35A |||output: 6.2V---2A
Your problem is power supply noise that is causing the buzz sound to come. This happened to one of my tutors and it used the power supply isolation to remove the noise using any 5V to 5V isolation circuit.
You can also buy a new good power supply from some reputed company, 6V is not needed at all. 5V will work fine.