Backlight; Option Switches - E.F. Johnson Company 51 Series Preliminary Operation Manual

GENERAL OPERATION
2. Enter the old eight-digit password and press the # key (not F4 ). If the
correct password is entered, "NEW PSWD" is displayed.
3. Enter the new password and press F4 . The password is changed.

Backlight

The backlight for the display and keypad can be manually turned on
by pressing the Backlight option switch if it is available. The backlight
can also be system operator programmed to automatically turn on when
any key is pressed. It then automatically turns off after a programmed
delay so that battery drain is minimized.

Option Switches

The programmable option switches are as follows:
•
F1 , F2 , F3 , and F4 on front panel (see illustration on page 13).
•
The three push-button switches on the side panel (see illustration on
page 16).
•
The 3-position selector switch and orange push-button switch on the
top panel (see illustration on page 15).
If your radio is programmed with both conventional and
SMARTNET/SmartZone channels (see page 29), these option switches
can be system operator programmed to control a different set of functions
for each channel type. For example, the F1 switch could select Hi/Lo
Power when a conventional channel is selected and Private Calls when a
SMARTNET/SmartZone channel is selected. The available functions in
each mode are indicated in the tables on pages 11 and 12. If the
programmed functions are not indicated in these tables, consult your
system operator to determine how your switches have been programmed.
If no option switch has been programmed to control a particular function,
that function may not be available or may be in a fixed mode.
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