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VGX modification to support "line in"

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crf2

8 Posts

Posted - 18 Nov 2008 : 13:12:19

Hi,

Is it possible to have some indication on how to modify a VGX board to manage a Line in without low pass filtering?

It is cler that such a modification will void any warranty on the board (but I'd like to modify an old board not being in warranty anymore)

Thanks in advance& best regards,
Danilo.

cbadr

154 Posts

Posted - 20 Nov 2008 : 18:40:54

You can use the Linux command aumix from the command prompt and select the input source you want. Please note that contrary to what is expected, choosing the MIC source on VGX will select the unamplified signal, suitable for line inputs, and choosing Line will give you the amplified signal suitable for microphones. You may also need to depopulate a couple of resistors. Please contact us to get more information about that.

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