Hi -
thanks; had a few minutes last night -- disconnected the wheels from
the front panel (no help); disconnected CN06 - 2 (no help);
disconnected R9 that feeds the CV mixer IC 8 : problem vanished.
Didn't have any more time (dealing with a dead Prophet 5 power
supply), but it's aroused my curiosity: why would pulling R9 do the
job, when pulling CN06-2 had no effect? -- according to the
schematic, it would be basically the same thing.
Hope to have more time tonight; meanwhile, any further thoughts
would be appreciated.
Thanks again.
~G
--- In PolySix@yahoogroups.com, The Old Crow <oldcrow@o...> wrote:
>
> Check the mod wheel circuit (not on KLM-367..is on KLM-369, I
think).
>
> Crow
> /∗∗/
>
> On Tue, 2 Sep 2003, cavernosum6 wrote:
>
> > Hi-
> > been working on a battery-damaged Polysix CPU board; almost have
it
> > back in shape, except for one problem: the LFO seems to be
> > permanently affecting the oscillators. I checked the switch
logic &
> > the inputs & outputs of IC 1 (the 4066 quad switch), and
everything
> > is as it should be (when the LFO to OSC is turned off, the
switches
> > cut off as they should) -- yet, the LFO is still somehow getting
> > through to the oscillators.
> > Any ideas? (other than buying one of Crow's new boards?)