Extron electronic MAV 48 ユーザーズマニュアル

Front panel security lockout (Executive mode)

The MAV Series switchers have a front panel security lockout (Executive mode)
feature 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 only, audio/video, and audio only 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 3-41).

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 3-42).  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 (audio/video models only).

• All other LEDs 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.