Hi,
I want to had bluetooth to my old SHARP CD BA125 radio I get this idea on YouTube . But I have difficulty too understand how. There is his plan. I only want Bluetooth so RCA line in I dont need and for the Input Selector I will use a button. All the stuff I need to find because the link of the video was for US and I am Canadian.

XS3868 Bluetooth Audio Receiver
Adjustable Buck Regulator
Prototype Paper

That all I think I need. My question are where the input of The Buck regulator is connected , how hi connected the bluetooth with the Buck Regulator what is the black thing it not on the plan and my last question is on the video the guy have a Buck Regulator 50 V to 35 V But in the description the link is a Buck Regulator 35 V to 35 V wich one is the good.

Thanks for helping

 

No help ?

 

Hi,
I want to had bluetooth to my old SHARP CD BA125 radio I get this idea on YouTube . But I have difficulty too understand how. There is his plan. I only want Bluetooth so RCA line in I dont need and for the Input Selector I will use a button. All the stuff I need to find because the link of the video was for US and I am Canadian.

XS3868 Bluetooth Audio Receiver
Adjustable Buck Regulator
Prototype Paper

That all I think I need. My question are where the input of The Buck regulator is connected , how hi connected the bluetooth with the Buck Regulator what is the black thing it not on the plan and my last question is on the video the guy have a Buck Regulator 50 V to 35 V But in the description the link is a Buck Regulator 35 V to 35 V wich one is the good.

Thanks for helping

I think that you need more - that is, you need a better understanding of what you are trying to do. I watched the videos. I also pulled up some manuals on your radio from a simple search.

Concerning the buck regulator. The purpose of that regulator is to provide regulated power to the XS3868. The XS3868 needs a regulated voltage of 3.6-4.2V DC. The purpose of the Buck Regulator is to provide that power. So, you need to input a DC voltage GREATER than what you want out, but LOWER than the maximum value that the Buck Regulator can handle. Then, you adjust the output to the voltage that you want using the on board potentiometer.

From your link:
Input voltage 3.2V ~ 40V
Output voltage 1.25V ~ 35V
Output current 3A (max)
Input voltage range: DC 3.2V to 40V(input voltage must be greater than the output voltage to 1.5V or more high. Could not boost)
Output Voltage Range: 1.25V to 35V DC voltage continuously adjustable....

The XS2868 only needs ~55mA, so that part is fine. You are asking "My question are where the input of The Buck regulator is connected". Well, the board has two inputs (+/-) and two outputs (+/-), you need to find somewhere, presumably inside your radio, that can be tapped to provide the appropriate DC voltage input and then adjust the voltage output to power the XS2868. Of course, there are some dangerous voltages in there also, so you need to know what you are doing so that you don't fry things, including yourself.

Now, if you are asking for a simple instruction...connect this to that...I think you are asking too much because you are not providing a schematic and it is too much to expect. There are some recommendations that could be made, but frankly, the way you have asked your questions does not suggest that you are familiar with this level of work - are you?

It seems to me that a much more difficult problem that you have is finding out where you will connect the Bluetooth audio out. You say "I only want Bluetooth so RCA line in I don't need and for the Input Selector I will use a button." I don't think you understand that you have no audio in capabilities on that radio (at least not that I can see in the manual). It was not designed with that feature, so where is that Bluetooth audio signal going to connect to the radio so you can use the amplifier and speakers?

 

It the first time I want to modify something I am really not familiar with electronic. And can I have a link for a good buck regulator ? I want to buy everything and after open my radio.

 

It the first time I want to modify something I am really not familiar with electronic. And can I have a link for a good buck regulator ? I want to buy everything and after open my radio.

In my opinion, you are not going about it in a reasonable way, especially because, as you say, you are not really familiar with electronics, and that was what I was trying to communicate to you.

I don't have a link for a good buck regulator.

Sorry, I could not be of help. Please be careful and good luck with your project.