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For both AES PROG and CHA A24 is left audio in, A23 is left audio out, B24 is right in, B23 is right out

Thanks for the info. Can you tell me on which board you got this from ? On a NEO-AES3-4 all those pins are NC (100% sure). --Furrtek 07:10, 9 March 2012 (CET)

NEO-AES, it's the only revision with the audio loops --Kyuusaku 07:25, 9 March 2012 (CET)