ASR 10 no audio in

New here been searching all over the internet to see if anyone else has experienced this, my asr 10 will not accept any incoming audio from the inputs. i replaced the input board and the same issue is happening. everything boots up fine, not sure if there’s a setting somewhere i’m missing or if this might be another piece of the internals thats bad

thanks in advance for any info

check sound in volume board input, then check DAC ic output and voltages.