Symbol Series 3800, Reference Manual

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5-7
Operating the Series 3800
Adjusting the Display
Back Lighting
The terminal’s backlight illuminates the display in dimly lit areas.
To turn the back light on or off, press FUNC L on either the 35-key or the 46-key keyboard,
or use the key sequence listed in your application guide. The back light turns off
automatically when the terminal is powered off or when the terminal has not been used for
an amount of time set by the application. See the application guide for more information.
Display Contrast
The display contrast is adjustable to eight levels, making the display more readable in
different lighting conditions, and at various temperatures.
! To reduce (lighten) display contrast, press FUNC on the 35-key keyboard and FUNC
X on the 46-key keyboard.
!
To increase (darken) display contrast, press FUNC on the 35-key keyboard and
FUNC Y on the 46-key keyboard.