Radio Shack PRO-89 - Manual (Page 46)

46
USING POWER SAVE
If the scanner does not detect a signal within 5 seconds after
you manually select a channel, the scanner enters the power-
saving standby mode and
P.–SA appears. In the standby
mode, the scanner rests for 1 second then checks for a signal
for
1 / 2
second, using only 40 percent of the power normally con-
sumed. The scanner continues this until you press any button
or it receives a signal.
on P.-SA appears if power save is on. oFF P.-SA appears
if power save is off.
Follow these steps to turn power save mode on or off.
1. If the scanner is on, turn VOLUME counterclockwise until it
clicks to turn it off.
2. While you hold down 3 and ENT , turn on the scanner.
3. Release 3 and ENT .
USING THE DISPLAY BACKLIGHT
You can turn on the display’s backlight for easy viewing in the
dark. Press
LIGHT to turn on the light for 5 seconds. To turn off
the light sooner, press LIGHT again.
Press both PGM and LIGHT to turn on the display’s backlight for
an extended period of time. To turn it off, press both PGM and
LIGHT , or press LIGHT .
TURNING THE KEY TONE ON AND OFF
The scanner is preset to sound a tone each time you press one
of its keys (except
LIGHT ). You can turn the key tone off or
back on.
1. If the scanner is on, turn VOLUME counterclockwise until it
clicks to turn it off.
2. While you hold down 2 and ENT , turn on the scanner.
3. When oFF tonE or on tonE appear, release 2 and ENT .