CX070PI-B-V2 no audio

Help and Support Compatibility Lists
1

Hi there,
I had this nice little device here and it came to my mind it might be a nice audio player.

This device can be found with many brand names but at the end they all have the samt type number CX070PI-B. Mine is a v2.
Setup was smoothe but I can not get it to output any audio.
I checked raspi-config for audio setup.

Screenshot 2026-01-06 141709

No matter what device I choose it remains silent.

Anybody here having a similar device got running?

2

Hello,
Here you are in Volumio community.
It seems you are not running Volumio in your device.
We can’t help you …
If you plan to use it, first install Volumio and come back to explain/ask.
Thanks

3

I am not? How do you come to this conclusion? Did you see the screenshot?

4

Your showing a screenshot of raspi-config. Audio is configured within Volumio, not via raspi-config.
Hence the ask.

And since we’re at it.
Without any usefull information, we can’t support you.
All we know so far is that you have a screen

5

Well, I’d love to give more and usefull information.

A log report might be a good point to start.
http://logs.volumio.org/volumio/CTALyC0.html

I opened the device and took a photo.

IMG_1404
IMG_14041920×1440 314 KB

This is not only a display but a complete case. It came with the Raspi 3b preinstalled. I used it with an older 3D printer running Klipper. Doing so I only ever used ethernet, USB-A (all connected to the Pi directly) and power.
On the right side one can see an add-on board (labeled CX-Port-V2) with a 3,5 mm audio jack, HDMI port, USB-C port and a power jack.
The product description says it has build in speakers. Took me a while to find these but in fact there are some very tiny speakers hidden in the top area of the case.
In Volumios playback options I see three devices.

  • HDMI out
  • Headphones
  • vc4-hdmi

Switching between these never makes any sound coming out. Neither from the build in speakers nor the attached speakers.
The only sound I hear is when the screen goes off after the timeout set in Toch Display plugin. That does a tiny “pop”.

Is there anything else I can provide?

6

Yeah I am afraid that Audio will be a problem. Due to the fact that there is a custom trick applied to extract it from a HDMI port and not from the 3.5mm jack on the rPi3.
There are no drivers (read DAC), so it can’t be configured within Volumio.

You might want to add a USB DAC or HAT. (Having the same issue with a Freenove case)

7

That doesn’t sound good at all. Where did you get that information regarding the custom HDMI extraction trick?

8

From your screenshot.
The 3.5mm jack on the rpi3 is not connected, but magically there is a 3.5mm jack on the right board.
Since GPIO has no audio, it can only come from the HDMI port.

9

I see.
There is an HDMI output option in Volumio selectable. Same as in raspi-config. Unfortunately this does not to work with Volumio.
I popped in another SD-Card with moOde installed. That one worked out of the box.
Weird.