Apple Mac 5260/100 - Manual (Page 212)

5260 and 5280 Adjustments Video - 29
20 Adjust the Sub-
Brightness control
(R500) to decrease the
brightness until the
screen luminance
measures one of the
following:
• 20 ±3 on the bottom
scale of light meter
Model R77
• 20 ±3 foot candles on
the red scale of light
meter Model 246
• 25 fl (foot lamberts)
on a photometer
• Between 9 and 10 on
light meter Model L-
248
R500
Sub-Brightness
Control