Backlight
When the backlight timer expires, the touch screen backlight is dimmed, not turned off. When both checkboxes are
unchecked, the backlight never turns off (or dims).
The default value for external power varies by the scheme selected on the
Power
(page 5-49) control panel (and for
Ignition Control, the status of the vehicle ignition). The default value is 1 minute when operating on the internal UPS
battery.
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