TX6600PRO INSTRUCTION MANUAL
68
The following programmable key functions are available to be programmed into
your radio. If so, some keys will directly cycle the available setting while others
will allow adjustments through a menu. Please read the user manual for detailed
operational descriptions of each of these features.
Backlight Cycle
Press the programmed Backlight key to cycle ON, OFF or AUT.
• ON: The backlight is always On.
• OFF: The backlight is always O.
• AUT: The backlight will switch on when a key is pressed but will
switch o automatically after 5 seconds.
Backlight Menu
1. Press the programmed Backlight Menu key to access the backlight
menu.
2. Rotate the Channel knob or press the keys to select ON, OFF
or AUT.
• ON: The backlight is always On.
• OFF: The backlight is always O.
• AUT: The backlight will switch on when a key is pressed but will
switch o automatically after 5 seconds.
3. Press the
MENU
F
key to exit or wait a few seconds for the menu to time-out.
Battery Voltage
1. Press the programmed Battery Voltage key to temporarily display
the battery voltage in the area below the channel display.
2. Press any key to return to the normal display.
Beep Cycle
Press the programmed Beep key to cycle ON, OFF or ALT.
• ON: The radio will beep whenever a key is pressed or when an alert is
required.
• OFF: All Beeps are inhibited
• ALT: The radio will only beep when an alert is required. Key beeps are
inhibited.
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