Yvonne,
Your best bet is in the General Arranger Keyboard section.
A lot of the members there know a lot of the technics keyboards and this is the section where everybody seems to hang out, so fast responses!
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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