Need right AV cable layout for Hellobox 8:

[edzus1]

I think that the AV 3.5mm output was added in order not only to connect to modern TVs via HDMI, but also could easily connect to old analog TVs via a small plug (3.5 mm) Due to the size of Hellobox 8
Stereo sound comes from the processor, but in front of the audio amplifier, both channels are connected into one channel (mono sound)


I think that the developers just added this AV output so that it was present with Hellobox 8 and saved on a few details (this is the second channel of the sound amplifier)

You say they did it by choice and it is not a mistake?

If they did it by choice, did they do it to save money? and how much did they save? It seems to me a very stupid thing...

It is also true that most of the old CRT TVs are monophonic, and that few people still use them now.

But if one wanted to send the sound to a stereo amplifier, for example from an online radio, m3u. he would hear it mono ...

I have news that the cpu should be the same in the old and new version of Hellobox 8 but I can't be sure.

I just expressed my opinion for what this AV output is intended.
If you want to see a high-quality picture, you need to connect via HDMI and get a full-fledged FULL HD picture, and only get SD quality picture through AV output. But there is even a possibility to get 4K picture quality - then you need to use a network connection via Android or OIS of the DVB Player application with a device that supports 4K format or with the help of a computer and DVBPlayer or VLC Player applications.

About the fact that they were developed with savings on the second audio channel. For one Hellobox 8, it may save $ 1-2 during production, it seems a little, but it is necessary to calculate that for the production of several thousand Hellobox 8, the amount will grow large.


You forgot our tests with firmware 202001027 - I have a new one, and you have an old Hellobox 8
from
http://www.freedvb.com/viewtopic.php?f= ... =10#p26325
before
http://www.freedvb.com/viewtopic.php?f= ... =20#p26356

P.S.
I upgraded my box and my Hellobox 8 has a stereo output for stereo headphones. I connected a ready-made board to these points that I ordered on Aliexpress with a power supply of 5 volts.

[Cluster.One]

You forgot our tests with firmware 202001027 - I have a new one, and you have an old Hellobox 8
from
http://www.freedvb.com/viewtopic.php?f= ... =10#p26325
before
http://www.freedvb.com/viewtopic.php?f= ... =20#p26356

P.S.
I upgraded my box and my Hellobox 8 has a stereo output for stereo headphones. I connected a ready-made board to these points that I ordered on Aliexpress with a power supply of 5 volts.

I haven't forgotten about our tests, but in a private message one of the developers wrote me these textual words: H8 old and H8 new is almost the same, except some box model differences.

In terms of cost savings I think they saved a few cents per box and not a few dollars

However, you did a good job, since the difficult thing was intercept the audio outputs, since the printed circuit is double sided and very small tracks, it takes a good eye.

Knowing where the 2 analog stereo channels are, you could restore stereo sound via the original AV output, separating the two Right - Left pins of the socket which are now connected together to a single pole. and make new wiring connections.

[whitecaspian]

you mean both hellobox 8 ,old and new boxes are same?

Different boards for the old and new Hellobox 8

When looking at the circuit (on the pictures (I have a new version)) it looks like the AV output part of both boards is the same circuit.
Analyzing the whole scheme old and new Hellobox 8 in the pictures it looks like the schemes are the same. But the most differences in these versions are the different processors (my assumptions are that the processor is improved in the new version.)
You can read mine and @ Cluster.One discussions about this firmware:
from
http://www.freedvb.com/viewtopic.php?f= ... =10#p26325
before
http://www.freedvb.com/viewtopic.php?f= ... =20#p26356

That was very informative.They have made many changes it seems.Im still unhappy with the wifi where improvement hasnt been done yet-I can only connect with 2.4GHz band and not 5 GHz which is available on my modem, which is much faster.Its not even displaying on wifi devices list.