I have just purchased a VIM3, Touchscreen and a Tone (VIM Edition).
I am running the default Android distribution that came with the VIM3.
VIM3_Pie_V201112
I have the touchscreen working but when I play sound (Youtube) I have no audio that comes out of the Tone RCA connectors.
Do I need to enable or configure something?
Does the Tone not work with the current Android distribution?
Things I have tried:
I have a USB C attached to both the VIM and the Tone. -> Still no sound
Plugged in HDMI and do get sound but only through HDMI and not through Tone RCA.
When I dont supply USBC to the Tone (40Way header from the VIM only), the LED on the tone does not light up.
Yet when I plug the USBC into the Tone, the LED on the tone does light up.
Is this LED indicative of power or is this something that is associated with the USBC?
I honestly have no idea why, but this time I have plugged in USB-C only on the VIM and I now have a white LED on the tone board and now I have SOUND! WIN!
I also did some investigation into the Tone schematic and I can see that the LED is powered off the 5V rail which is supplied by the VIM3 40W header.
I must have had a loose or bad connection that has now fixed itself.