No !
you are wrong both KBD and rack of the matrix6 have 2 pedals input
both of them, read the manuals carefully

http://www.deepsonic.ch/deep/manuals/oberheim_matrix-6_manual.pdf
http://www.deepsonic.ch/deep/manuals/oberheim_matrix-6r_manual.pdf

http://2.bp.blogspot.com/_rScBRKlTdoE/S_N-bMmkMAI/AAAAAAABDh4/duxeJbv_emY/s1600/MATRIX6r-BACK.jpg

Andrea

and please Trim your messages

>>

steinbergerstyle:
No, the keyboard has two pedal inputs, unlike the rack. Third try.