Runco CL-420 Owner's Operating Manual page 47

Select Color from the Picture Adjust menu. While looking at the color bar pattern through
a blue filter, adjust the color saturation level until the outermost (gray and blue) color bars
appear to be a single shade of blue:
Tint: Tint or "hue" is essentially the ratio of red to green in the color portion of the image.
When tint is decreased, the image appears redder; when it is increased the image
appears greener. To set the tint, select Tint from the Picture Adjust menu. While looking at
the color bar pattern through a blue filter, adjust the tint level until the cyan and magenta
color bars (on either side of the green bar) appear to be a single shade of blue.
1. Like the brightness and contrast controls, the color and tint
Note
2. Color and tint controls are not available on the HDMI or RGB-HD
Runco CL-410 and CL-420 Owner's Operating Manual
controls are interactive. A change to one may require a subtle
change to the other in order to achieve the optimum setting.
inputs.
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Operation