Apple Mac 5260/100 - Manual (Page 207)

5260 and 5280 Adjustments Video - 24
11 Run Display Service
Utility to display the
Gray Bars Test Pattern.
12
Note:
Ensure that the
left-most bar remains
solid black while
performing this step.
Adjust the red and green
Bias controls to
neutralize the darkest
bars (left side) of the
Gray Bars Test Pattern.
Run
Display Service
Utility
Green Bias
(R940)
Red Bias
(R910)
Gray Bars
Test Pattern
Screen Screen
Control
Panel
Screen Brightness
Screen Contrast