Kenwood TM-451A - Manual (Page 70)

AUTOMATIC POWER OFF (APO)
After a programmable time period elapses with no key
entries, APO turns OFF the power; however, 1 minute
before the power turns OFF, "APO" starts blinking and a
series of warning tones sound.
If the squelch opens or any keys are pressed during the
time period while APO is ON, the timer resets. When
the squelch closes or key entry stops, the timer begins
counting again from 0. When Tone Alert is switched ON
{page 86}, APO still turns OFF the power if no key entry
is made for 24 hours.
Activate APO by using the following procedure:
1 Press [F] (1 s) to enter Menu A.
2 Select "APO" (page 22}.
• "APO" starts blinking and the current APO status
appears.
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4 Exit Menu A.
• "APO" remains ON if a timer value was selected.
To restore power after APO has been activated, press
[PWR] twice.
Note:
► APO cannot be turned OFF if the Display Dimmer is OFF.
► Switching OFF the Dimmer while APO is OFF causes APO to be
set to 180 minutes. If APO was set for 60 or 120 minutes, the
current APO setting remains in effect.
3 Select a timer value.
• The available selections are OFF, 60, 120, and
180 minutes.
• Default: OFF
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