Dürkopp Adler 755 B Operating Instructions Manual page 230

 The display switches to Adjust brightness and contrast.
Fig. 182: Adjust brightness and contrast
To adjust the brightness of the display:
1. Move the controller.
228
Adjusting brightness and contrast
• Increase brightness: Slide the controller to the right
• Reduce brightness: Slide the controller to the left
Operating Instructions 755 B, 756 B/F - 00.0 - 02/2021
Programming