I don't have a G70 yet, but it looks like it's midi only, which means the G could have a setting possibillity which could look like,
local, midi only, both
Cheque midi set up settings!
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Keyboards/Sound Units: Kurzweil 2600S, Roland VR-760, Acces Virus C, Roland G-800, Akai AX60, Minimoog, Machine Drum, Roland R8-M, mediastation x-76