D439E Service Manual 5. Service Tool
231
Operating Order and References
Screen Brightness Adjustment
1. How to select the “Back Light”
• Select
button.
• Select the
at the bottom of screen.
• Select the “Back Light (F1)” on screen.
<Figure 2: Back Light Adjustment>
Adjust the brightness using stylus pen or pressing the
, on the key pad.
2. It can be adjusted at 5 levels. Screen will be brighter as it is adjusted to (+).
3. Move to another setup
• Using stylus pen, move to another setup if required
• Selecting the
, move to the menu and use , buttons to move another
setup if required.
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