For Sale Audio add-on kit for RGBtoHDMI CDTV v2
- Thread starter solarmon
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This kit is specifically for the RGBtoHDMI CDTV V2 boards.
But the audio add-on board was designed for any RGBtoHDMI solution. You just need to figure out whether it will fit your RGBtoHDMI board, where to solder it on to and how to get the audio signals to it.
You can buy the generic audio add-on board from using the link provided.
Can this kit be applied on one RGBtoHDMI for A2000 ?
The one below
The one below
@AwakeningStar
Electrically, it should work, but it depends on the other side of the board, which I cannot find any pictures or images of.
And I see that there are audio signal headers on the board too, but I don't know whether the resitor board will be required to reduce the audio signals. It may or may not be required, and may even need different resitor values if it is required.
Electrically, it should work, but it depends on the other side of the board, which I cannot find any pictures or images of.
And I see that there are audio signal headers on the board too, but I don't know whether the resitor board will be required to reduce the audio signals. It may or may not be required, and may even need different resitor values if it is required.
@AwakeningStar
The board is clear on the other side, so physically there is no issue fitting the audio daughter board. And the audio signals are available, with or without the resistor adapter board, depending on the audio signals of the A2000.
You should ask the creator of this RGBtoHDMI board, Hamag, whether the audio daughter board has been tested on it and proven to be working with the audio signals provided on it.
The board is clear on the other side, so physically there is no issue fitting the audio daughter board. And the audio signals are available, with or without the resistor adapter board, depending on the audio signals of the A2000.
You should ask the creator of this RGBtoHDMI board, Hamag, whether the audio daughter board has been tested on it and proven to be working with the audio signals provided on it.
i asked, waiting for his reply
But I have another question
where in the A2000 we connect the two wires (left and right spud signals)?
As I said previously, the (Paula) audio signals (L G G R) seems to present on the board - so you should be able to take it from there.
But again, I don't know whether my resistor board is required or not, or whether the resistor values are correct, for these audio signals on an A2000. This kit has been designed for the audio signals on a CDTV only.
Do you have any documentation regarding the expected audio signals ?
I can measure and adjust the resistances to bring the signals into the expected range
Can also be the CDTV signal values that you measured when you adjusted the resistances to your module
I can then measure the PAULA audio signals and we can then see if the resistances need to be adjusted
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See https://github.com/IanSB/RGBtoHDMI/issues/45#issuecomment-3025253808Do you have any documentation regarding the expected audio signals ?
I can measure and adjust the resistances to bring the signals into the expected range
Can also be the CDTV signal values that you measured when you adjusted the resistances to your module
I can then measure the PAULA audio signals and we can then see if the resistances need to be adjusted
The idea is to use a voltage divider to pull down the audio signals down to what the audio board will accept.
I found that for the CDTV audio signals on the video slot, using a voltage divider with 4.7K and 1K resistords did the job.
You will have to work out what level/stage the audio signals are at the A2000 video slot, and whether you need a voltage divider or not, and what values are suitable.
