Adding SDI Card and digital audio to Panasonic AJ-D650

Added a SDI card and Digital (AES/EBU) from another machine (the same Model) and when I try and use it I get video but no audio from it. Is there a menu setting that needs to be changed in order for the audio to work? There is no audio coming to or from the deck only the video is going through. Any solutions? The reason I am doing this is because I have a deck with very few hours on it but it does not have the SDI or the Digital (AES/EBU) and would be nice to use this working deck with the digital inputs. Thank you.