Hi, If you set the Delay and Level to zero does the ring mod change ? Btw, I'm in London, where are you based ? Regards, Tony --- In PolySix@yahoogroups.com, Eric Frampton <eric@...> wrote: > > Hi all - > > I've just finished doing the standard battery damage control on my PolySix, but some weird things are happening. On this machine, it was far enough gone that I had to replace both IC30 and IC31, and do a fair amount of point-to-point wiring underneath. That said, I'm still seeing some misbehavior. > > First off, the entire front panel oscillator section is non-responsive to knob movement, including the Sub Osc switch. > > Also, the MG Mod destination is routed to VCF, no matter how that switch is selected. > > Next, I've noticed a weird ring mod-sounding modulation on the very end of the release stage of any notes. As best I can figure, it's the filter, not the VCA, that's being modulated at high frequency, as playing with filter cutoff/key amt/env amt changes the amount of this modulation. It's definitely not the LFO bleeding through anywhere - LFO speed has no effect on this audio-rate mod I'm hearing. > > Everything else seems to be working fine. > > Probing the A/B/C inputs of the 4051's and pin 5 of the 4042's in the KLM-367 board, I'm seeing no signal on P20 and a weak signal on P21 at the 4051's, and no signal at P24 on that set of 4042's (P25 on the other set is fine). I understand just enough to have gotten that far, but am not sure where to take it from here. > > So I submit my weird P6's behavior to the pro's - any thoughts? > > Thanks, > Eric >
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Re: front panel and ring mod-ish weirdness
2012-08-12 by tonezone020
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