Stopped working

Hi all

I don't suppose any one has had this issue, Im using a Z2 mixer with turntables on timecode, was working absolutely fine last night, opened the laptop up this morning and the software opened up as usual with the same tracks loaded, dropped the needle down and it just won't send the signal. So done the usual, shut it all down and started again, and its the same, made sure it was on scratch mode and checking various settings... The only thing which I've noticed isn't right is when I turn the mixer on some buttons light up and the volume reader is moving up an down but the beat buttons and the loop number and most the lights won't light up until I physically press a button which I don't usually have to do, it usually all just lights up on its own

If someone has any advice it would be much appreciated