I had to take my vocal chain ( U87a - LA610 - Lavry Converter ) for repair, but need to record a vocal track. I have never used the board for this. I have the vocal going into the board and registering in Logic, but so are all the other tracks that are playing in Locig! So, I can't record just the vocal into Logic and monitor the music. How do I route the music so it doesn't get sent back to Logic, but I can still hear it through the control room? Thanks for your help!