Apple Mac 5260/100 - Manual (Page 208)

5260 and 5280 Adjustments Video - 25
Note:
If the screen
shows a predominant
blue color, adjust the
green Bias control
(R940) until the blue
color is neutralized.
Note:
Adjust the red
Bias control (R910)
until the bars appear to
be shades of gray.
Run
Display Service
Utility
Green Bias
(R940)
Red Bias
(R910)
Gray Bars
Test Pattern
Screen Screen
Control
Panel
Screen Brightness
Screen Contrast