My advice would be to check the manual and ensure that you've got it set for the patch. I feel as though this function must be done in software. Remember the Matrix 6/6R uses the Intel 8253 timer chip for its oscillators-- they are DCOs not VCOs. 

Tom

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On Feb 14, 2017, at 9:04 PM, Ola H cockandswan@... [oberheim] < oberheim@yahoogroups.com > wrote: