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Re: CGS48 VCO: Found only 10 diodes on the PCB vs. 12 in the parts l

2012-03-26 by Ove Ridé

On 26 March 2012 19:32, Joachim <sonicwarrior@...> wrote:
> Hi,
>
> I have two CGS48 Rev1.0 VCOs that I started stuffing today. But when I got
> to the 1N4148 diodes I only found 10 on the PCB while there are 12 in the parts list
> and schematic.
>
> Am I missing something?

When investigating the board schematic and board layout, the schematic
mentions 12 diodes whereas the board only has 10. The ones missing on
the board are the two diodes facing opposite directions, connecting to
pin 2 of the TL072 near the top of the schematic. Those are basically
overshoot protection as far as I can tell and not strictly necessary
as long as you don't have ridiculously high CV voltages.

--
/Ove

Blog: <http://blog.gg8.se/>

"Here is Evergreen City. Evergreen is the color of green forever."

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