Display Backlight Control - Honeywell Thor vm3 User Manual

Screen Blanking
Screen blanking (blackout) can be enabled when the vehicle is in motion. See Screen Blanking (page 4-32) for hardware
setup and Screen Control (page 5-57) for software setup to enable screen blanking. Once screen blanking is enabled, the
display is blanked out any time when the cable sends the signal that the vehicle is in motion. If the cable is removed,
screen blanking is disabled and the display remains on.

Display Backlight Control

The display brightness on a Thor VM3 equipped with an outdoor display can be configured to automatically adjust depend-
ing on the ambient light level via Screen Control (page 5-57).
Note: When automatic brightness control is enabled, the user can still manually adjust brightness. However, automatic
brightness control continues to adjust display brightness if the ambient lighting level changes.
The display brightness can be adjusted manually, via the keypad:
1. Press the Blue key to enter Blue mode.
2. Press P5 to increase brightness or P6 to decrease brightness.
3. Press the Blue key to exit Blue mode.
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