[sdiy] Weirdness in the Casio VL-1 service manual

[Loscha]

This is the schematic I have.

On Thu, 9 May 2024 at 16:55, Lanterman, Aaron D via Synth-diy <
synth-diy at synth-diy.org> wrote:

> For some reason I’ve become oddly obsessed with the comparatively
> primitive Casio VL-1. It’s WEIRD:
>
> https://youtu.be/KiMjPOsaf5Q
>
> I’ve been puzzling over the simplified circuit in the service manual.
>
>
> http://www.warningwillrobinson.com.au/manuals/Casio%20VL1%20service%20manual.pdf
>
> Am I overlooking something or is the “envelope detector” in the upper
> right corner messed up?
>
> Aaron Lanterman, Prof. of ECE, Georgia Tech
> My blog on Education and Innovation: https://edupocalypsenow.wordpress.com
> My blog on Electronics and Programming: https://lantertronics.blogspot.com
> My YouTube channel on Electronics and Programming:
> https://www.youtube.com/c/lantertronics
>
>
>
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