Brightness and Contrast

These functions are adjusted directly using the rotary controls. Press the control and it will pop out so that it can be rotated. Press again to return the control flush to the bezel.

Function

Effect of Control

Description

 

 

-

+

 

 

 

 

 

Brightness

 

Adjusts background brightness

 

 

 

Contrast

Adjusts contrast between foreground and background

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IBM C50 manual Brightness and Contrast, Function Effect of Control Description