Yaesu FTA-750 SPIRIT Operating Manual page 49

Activating the lock feature
 P r e s s a n d h o l d t h e
[ ] key.
According to the setting
of the lockout configu-
ration, either of "KEY
LOCK", "DIAL LOCK",
or "ALL LOCK" will ap-
pear on the screen for
2 seconds and then the
display will return to
the previous screen.
FTA-750/FTA-550 O
a
dVanced
M
perATing AnuAl
o
peratIon
 While the FTA-750/FTA-550 are locked, the con-
trols with the DIAL selector knob and/or the keys
except the PTT switch, the POWER switch, and
the [ 121.5 ] key are disabled.
If the DIAL selector knob is rotated or any of
the keys is pressed, either of "DIAL LOCK", "KEY
LOCK", or "ALL LOCK" will appear on the screen
for 2 seconds and then the display will return to the
previous screen.
 To turn the lock feature
off, press and hold the
[ ] key again.
" U N L O C K " w i l l a p -
pear on the screen for
2 seconds and then the
display will return to
the previous screen.
47