Extron electronic MVX 88 Series ユーザーズマニュアル

Front panel security lockout (Executive mode)

The MVX Series switchers have a front panel security lockout feature (Executive 

mode) that limits the operation of the switcher from the front panel and optional IR 

remote control.  When the switcher is locked, the Enter button, I/O button 

(video, audio, or video and audio selection), and all of the front panel audio gain 

and attenuation functions are disabled.  The front panel input and output buttons 

continue to allow ties to be viewed, but ties cannot be created.
The front panel security lockout also disables the IR remote sensor to lock out 

remote control functions.
Toggle the front panel lockout on and off by pressing and holding the Enter and 

Preset buttons for approximately 2 seconds (figure 3-40).

2 seconds

Press and 

hold the

Enter and Preset buttons.

The Preset LED 

flashes twice to indicate

that the front panel lockout has toggled on or off.

Release the Enter and Preset buttons.

To clear all ties and saved presets, press and hold the Preset button on the front 

panel while applying AC power (figure 3-41).  Continue to hold the Preset button 

until all LEDs light and then release the Preset button.  The power up sequence 

completes:

• All LEDs turn off then turn on and off from left to right.
• The Video and Audio LEDs turn on.
• All other LED remain off.

Power

Press and 

hold the Preset button while

you apply power to the switcher.

The switcher continues the power up process.

Release the Preset button.

The switcher lights 

all of the LEDs.