More circuit help required please

[Tony Duell]

On Sun, Jan 8, 2017 at 4:18 PM, Mouse <mouse at rodents-montreal.org> wrote:

> I also question the way R311/R310/R309 are all different.  I would
> expect the red, green, and blue circuits to be electrically more or
> less identical, and different pulldown values does not fit with that.

Well, I wonder if it's producing a weighted sum of R,G,B to make a
monochrome luminance signal. Not at all uncommon.


-tony