Omron ZJ-SD Series User Manual page 110

Section 6
Key Lock Function
Key Lock Function
The key lock function disables all Amplifier Unit keys. Once the keys have been disabled, no
key input is accepted until the lock is canceled. This function is useful to prevent inadvertent
changes to settings.
The mode and threshold switches are still enabled even when the key lock function is ON.
Setting the Key Lock
1.
Set the mode switch to FUN.
2.
Hold down the UP, DOWN, RIGHT, and LEFT
keys at the same time.
The main display indicates [LOCK].
The sub-display indicates [-----].
3.
Release the keys once [OK] is displayed on
the sub-display.
This locks the keys.
Canceling the Key Lock
1.
Set the mode switch to FUN.
2.
Hold down the UP, DOWN, RIGHT, and LEFT
keys at the same time.
The main display indicates [FREE].
The sub-display indicates [-----].
3.
Release the keys once [OK] is displayed on
the sub-display.
This cancels the key lock.
ZJ-SD
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User's Manual