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Doepfer

Index last updated: 2026-04-29 00:15 UTC

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Re: [Doepfer_a100] trouble with VC patching to second G6 frame

2015-07-02 by acgenerator@att.net

as an update. Pulled the racks off the shelf and have them stacked on a plastic milk crate (isolated) with a dedicated Furman Merit series power conditioner.

Frame2 (expansion)
-----------------------------------
Top: RF Nomad, A-118, Multiples, A-119, A-119
Bottom: A-106-5, A-107, A-189-1, A-199, A-131

Frame1 (original)
---------------------------------
Top: A-178, A-175, A-146, A143-3, A-138c, A-144, A-178
Bottom: A-190 (a version prior to being called -1), A-160, A-161, +5V adapter, A-189-1,A-148, A-156

Patch set up:
RF Audio Out -> Multiples ->A: Morphing Filter -> VCA; B:-> Bit cruncher -> reverb -> VCA
Random voltage CV ->RF Nomad
LFO2 CV-> Morphing filter (frequency)


Testing:
- patches worked on the old frame as described
- Re-verified the internal wiring of the G6 power supplies to the bus boards/ground to chassis and they look correct.
- Cables are not the problem. I've tried multiple cables and they all come to matching results.
- Putting the CV from random noise triggers the desired response in the Morphing filter. Same with manual control.
- Moving the LFO2 to frame2 triggers the desired response in the Morphing filter.
- Adjusting the LFO2 rate or the attenuator in the Morphing Filter has no effect while the LFO2 is in Frame1
- Using QuadLFO or therimins as CV source instead of LFO2 nets the same results.

Still stumped on what is keeping the signals from these frames to be out of whack

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