new here . need question thanks

[ace. prob]

hi my friend has a . behringer mixer ddm 4000
he is have trouble getting sound from groove box
this information is a bit jumbled
here goes
there is no sound coming through mixer . the light out is flash in rapid on the groove box . when u press midi start stop on the mixer . everytime i press it the in light on groove box flash once . and the out light groove box . he has connected midi cabels in out on mixer and groove box . bpm groove box is flat lined or something . and it flashes in time to the beat . yamaha groove box rm1x sequence remixer . told u it was a bit jumbled
thanks who ever helps . i dont have the mixer with me but can get the information to him . he doesnt have the internet . cheers

 

[gcapel]

I looked at the mixer and I believe that the midi port on the mixer is only for bpm syncing and will not pass the actual audio. So I would use the stereo analog outputs from the GB to either a stereo channel or two mono channels on the mixer.