Apple lc 580.performa 580cd Service Manual
Adjustments
Video - 26
• 30 fL (foot lamberts)
on a photometer
11 To reach the correct
luminance level, you
might need to adjust the
SC (sub-contrast)
control as well. If so, set
the SC (sub-contrast)
control higher (turn
clockwise).
12 Check the resulting
screen by running
Display Service Utility
to display the Gray Bars
test pattern.
All-White Screen
Adjustment
Controls