MU-190 / MU-231 : How to Unlock Key Operation
MU190 MU231 MU190HD Display
Written by Paul Lawson
Updated at December 7th, 2023
All the keys of the display unit are locked by default.
To unlock the monitor controls :
1. Turn off the monitor unit.
2. Hold the PIP key whilst powering the monitor back on. Hold the PIP key for more than five seconds. The key operation is now unlocked.
Note: If the display slide switch is ON, power of the display is controlled by the connected equipment (for example RADAR). In this instance, power on/off the complete system.
3. To lock the key operation, turn off the monitor unit and then turn it on while you hold the PIP key.
The setting of [KEY LOCK] in the [INSTALLATION SETTING] menu ([OFF/ON]) is mutually changed.
