Motorola APX 4000 User's Guide download pdf (Page 141)

Advanced Features

English

Controlling the Display Backlight

You can enable or disable the radio’s display backlight as

needed, if poor light conditions make the display or keypad

difficult to read.

Depending on how your radio is preprogrammed, you can also

maintain a minimum backlight level on the radio's front display.

Note: The backlight setting also affects the Menu Select

buttons, the Menu Navigation buttons and the keypad

backlighting accordingly.

Procedure:

Press the preprogrammed Light/Flip button to toggle the

backlight on or off.

Press any key of the keypad, the Menu Select or Menu

Navigation buttons, or any programmable radio controls or

buttons to turn the backlight on.

Note: The backlight remains on for a preprogrammed time

before it automatically turns off completely or returns to

the minimum backlight level.

Locking and Unlocking the Keypad and Controls

You can lock your radio’s keypad, programmable buttons and

MFK to avoid inadvertent entry. Check with your dealer or

qualified technician for best selection to suite your usage.

Procedure:

1 Toggle the preprogrammed Keypad Lock button to on.

2 The display shows Kypd/Ctrl Lock.

3 Toggle again to unlock the keypad.

Turning Keypad Tones On or Off

You can enable and disable keypad tones, if needed.

Procedure:

Press the preprogrammed Keypad Mute button to turn the

tones off or on.

Follow the procedure below.

1 < or > to Mute.

2 Press the Menu Select button directly below Mute.

3 The display shows momentary Tones off, indicating that

the keypad tones are disabled.

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Motorola APX 4000 User's Guide Page 141