Motorola SL7550 用户手册
Prep
aring Y
o
ur Radio for Use
English
5
NOTE: Brightness is set via the manual brightness mode or
auto brightness is controlled by the radio’s photo
sensor. The Home screen does not light up during a
power up if the LED indicator is disabled (see Turning
the LED Indicator On or Off on page 88).
sensor. The Home screen does not light up during a
power up if the LED indicator is disabled (see Turning
the LED Indicator On or Off on page 88).
A brief tone sounds, indicating that the power up test is
successful.
successful.
NOTE: There is no power up tone if the radio tones/alerts
function is disabled (see Turning the Radio Tones/
Alerts On or Off on page 83).
Alerts On or Off on page 83).
If your radio does not power up, check your battery. Make sure
that it is charged and properly attached. If your radio still does
not power up, contact your dealer.
that it is charged and properly attached. If your radio still does
not power up, contact your dealer.
To turn off the radio, press the On/Off button again and hold for
2 seconds. You see a brief
2 seconds. You see a brief
Powering Down
on the radio’s
display.
Adjusting the Volume
To increase the volume,
push the Volume Button
up.
push the Volume Button
up.
To decrease the volume,
push the Volume Button
down.
push the Volume Button
down.
NOTE: Your radio can be
programmed to
have a minimum
volume offset
where the volume
level cannot be
lowered past the
programmed
minimum volume.
Check with your
dealer or system
administrator for
more information.
have a minimum
volume offset
where the volume
level cannot be
lowered past the
programmed
minimum volume.
Check with your
dealer or system
administrator for
more information.
Volume
Button
Button
NAG-LACR.book Page 5 Tuesday, January 10, 2012 10:33 AM