User Guide User guide
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MVX Plus 128 VGA A Matrix Switcher • Operation
PRELIMINARY
Setting the front panel locks (Executive modes)
The matrix switcher has three levels of front panel security lock that limit the 
operation of the switcher from the front panel. The three levels are:
  •  Lock mode 0 — The front panel is completely unlocked. All front panel 
functions are available.
  •  Lock mode 1 — All changes are locked from the front panel. Some functions 
can be viewed.
  •  Lock mode 2 — Basic functions are unlocked. Advanced features are locked 
and can be viewed only.
    Basic features consist of:
  Making ties
  Saving and recalling presets
  Setting input audio gain and attenuation
  Changing Lock modes
    Advanced features consist of:
  Creating I/O groups
  Setting RGB delay
  Setting video and audio output mutes
  Setting audio output volume
  Setting the rear panel remote port protocol and baud rate
N
  The switcher is shipped from the factory in Lock mode 2.
Selecting Lock mode 2 or toggling between mode 2 and mode 0
N
  If the switcher is in Lock mode 0 or mode 1, this procedure selects mode 2.
If the switcher in in Lock mode 2, this procedure selects mode 0 (unlocks the 
switcher).
Toggle the lock on and off by pressing and holding the Enter button, the RGBHV 
button, and the Audio button for approximately 2 seconds (figure 3-64).
I / O 
RGBHV AUDIO 
ENTER
I / O
RGBHV AUDIO
ENTER
Press and hold the Enter, RGBHV, and Audio 
buttons simultaneously to turn on Lock mode 2 or to 
toggle between mode 2 and mode 0.
2 seconds 
The Enter, RGBHV, and 
Audio buttons blink twice 
to indicate the mode 
change.
Release the buttons.
Figure 3-64 — Toggle front panel lock between mode 2 and mode 0










