Capturing Audio into the Sony Z5 from a Sound Desk

Hi all,

Apologies if this question has already been covered but a quick search didn't find anything.

I need to capture audio from a sound desk into the XLR input in a Sony Z5 camera. The first test has come out a little hissy underneath. Its a play and the principal cast are radio miked. I'm getting the feed from the sound man off his desk, but I may have the wrong settings adjusted on my camera!

Can anyone, who is famliar with a z5 give me advice on the settings and inputs for the camera please ??

Thanks a mil!