Mitsubishi Electric PAR-21MAA Technical Manual page 17

Enabling the Lock Function
(6) While pressing the
FILTER
tion.
appears on the screen (at
* If a locked button is pressed while the operation lock function is in use,
How to Unlock the Buttons
(7) While pressing the
FILTER
disappears from the screen (at
( ) button , press the
).
 Display example when operation lock function is in use
( ) button , press the
).
 Display example when the operation lock function is not in use
button for 2 seconds to enable the operation lock func-
ON/OFF
will blink on the screen (at
button for 2 seconds.
ON/OFF
).
5