User's Manual

Basic operation 25
Adjusting the speaker volume
Rotate the volume control clockwise to increase the speaker
volume and counterclockwise to decrease the volume. The
volume control also changes the volume level of the radio’s
audible indicators.
Note: Your radio may be programmed with a minimum
volume level.
Turning on control-head backlighting
The radio’s display and keypad light up when backlighting is
on. This normally only happens when a key is pressed or a
call is received. There are two ways you may be able to
change the way backlighting operates on your radio:
■ turn on backlighting momentarily, using a programmed
function key, or
■ change backlighting between on and off, using either a
programmed function key or the Main menu.
Turning backlighting on momentarily by using
a function key
You may be able to use a programmed function key to turn
backlighting on momentarily. Backlighting remains on for a
few seconds and then turns off.
Alternatively, the function key may be programmed so that:
■ a short key press turns backlighting on momentarily, and
■ a long key press turns backlighting on, and it remains on
until there is a further long key press.
Turning backlighting on and off by using a
function key
The function key programmed for Backlighting turns back-
lighting on and off. When backlighting is turned on, it
remains on until the function key is pressed again.