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Re: ML3000 L/R BusSounds like one of the cables running from console to EQ lost one of the conductors making it balanced. If it's 1/4" TRS this is no surprise, they always do that. If XLR, open them up and see if all the solders are OK. If it's happening internally to the console, then it's possibly a bad solder on the XLR outputs or somewhere close.
Re: ML3000 L/R Bus
Sounds like one of the cables running from console to EQ lost one of the conductors making it balanced. If it's 1/4" TRS this is no surprise, they always do that. If XLR, open them up and see if all the solders are OK. If it's happening internally to the console, then it's possibly a bad solder on the XLR outputs or somewhere close.
