Apple 577 Manuale Utente

 

 Adjustments

Video - 19

 

8 Use Display Service 

Utility to display the 

All-White Screen test 

pattern.

9 Using the light meter, 

adjust the sub-contrast 

control (SC) until the 

luminance measures 33 

feet lamberts (± 3 foot 

lamberts), which on the 

light meter is

• Model R77: 25 on the 

bottom scale

• Model L-248: middle 

of the 10 scale

• Model 246: 25 on the 

red scale

All-White Screen