Kenwood TM-441A - Manual (Page 49)

5-14 BEEP
The beep can be turned on and off.
Press the F key for longer than 1 second, then press the
REV/STEP key while the F indicator is flashing.
Each time this is done, the beep is turned on or off.
There are three types of lock functions.
(I) Microphone key lock
When the switch on the rear of the microphone is set
to the LOCK position, all the microphone keys except
the PTT key are disabled.
LOCK
The panel keys (except F and MHz/LOCK key) and the
tuning
control are disabled. However, the
microphone function works.
Press the F key, then press the MHz/LOCK key within
10 seconds. The LOCK indicator lights.
To release the lock, press the F key again, then press
the MHz/LOCK key within 10 seconds.
A.LOCK(ALL LOCK)
All operations, except the power switch, volume, and
squelch, are disabled.
Switch the power off while the LOCK indicator is on,
hold down the MHz/LOCK key, and switch the power
on again. The A.LOCK indicator lights.
To release A.LOCK, switch the power off while the
A.LOCK indicator is on, hold down the MHz/LOCK key,
then switch the power on again. The A.LOCK operation
cannot be canceled by VFO or MR reset.
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