Upon further inspection, I believe the source of this connection is CGS75,
where it simplifies the connection of the cycle switch, while probably not
affecting the normal function of the module. There, this diode (*2) is
connected after the resistors, and the PCB layout agrees.
where it simplifies the connection of the cycle switch, while probably not
affecting the normal function of the module. There, this diode (*2) is
connected after the resistors, and the PCB layout agrees.
On 30 December 2011 09:40, <sasami@...> wrote:
> **
>
>
> If the PCB agrees with the other diagram, that means my diagram is
> incorrect.
> As simple as that.
> Ken
>
> >I'm currently designing a PCB based on CGS114 to suit my own needs. In
> >doing so, I've been studying both the schematic and PCB layout and
> >I've noticed a small difference between the two. In the schematic,
> >there's a diode that goes from the 33k resistor near trig in, directly
> >to end out. In the PCB layout, this diode is instead connected to the
> >output of the 3900, on the other side of the resistor/zener network.
> >
> >Another DUSG schematic I have also connects it as in the PCB layout,
> >so I'm assuming this is the original way. Is there any particular
> >point in connecting the diode as in the schematic? (I.e. directly to
> >the M terminal.)
> >
> >I'm trying to understand whether the purpose of this diode is to
> >forward pulses from trig in to end out, or to sink current from the
> >trig input depending on what the signal input network does with end
> >out...
> >
> >Convenient link:
> >http://www.cgs.synth.net/modules/cgs114_dusg.html
> >
> >--
> >/Ove
> >
> >Blog: <http://blog.gg8.se/>
> >
> >"Here is Evergreen City. Evergreen is the color of green forever."
> >
> >
> >------------------------------------
> >
> >The CGS Modular Synth home page: http://www.cgs.synth.net/
> >Yahoo! Groups Links
> >
> >
> >
> >
> __________________________________________________________
> Ken Stone sasami@... otherunicorn@...
> Modular Synth PCBs for sale <http://www.cgs.synth.net/>
> Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
>
>
>
--
/Ove
Blog: <http://blog.gg8.se/>
"Here is Evergreen City. Evergreen is the color of green forever."
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