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SuperVisor LX
SECTION 4
FGAX3249400MANAA
100701
Version 1 Issue 2
4.23
The Supervisor LX Operating Modes
1. Normal
(default)
To put the Supervisor LX into normal operating
mode make sure that keying is turned off and
pass thru is turned off.
When in normal operating mode, the Supervisor
LX expects a video signal to be present on one or
more of its input channels. The output of the
Supervisor LX is determined by the following
settings:
IO Lock
Output Rate
Output Syncs
If IO Lock is turned off then the output field rate is
60 Hz. If IO Lock is turned on then the output field
rate is the same as the input video field rate i.e.
60 Hz for NTSC and 50 Hz for PAL.
Output Rate selects one of 640 x 480, 800 x 600 or
1024 x 768.
Output syncs can be positive or negative.
2. Pass Thru
To put the Supervisor LX into pass thru operation
select either VGA thru or HD thru from the
pass thru menu.
When in pass thru mode, the Supervisor LX
expects either a VGA or HD signal to be present
on its computer video input.
The sync polarity of the output signal can be set in
the output syncs menu.
The output rate will be the same as the input rate.
The output field rate will be the same as the input
field rate.
For example, if the input is a VGA signal 800 x 600
at 75 Hz then the output signal is 800 x 600 at
75 Hz.
Note 1: picture adjustment controls such as size
and position, procamps and enhance has no effect
on the picture when the Supervisor LX is in
pass thru mode.
Note 2: there is a temporary blanking of the output
when pass thru is switched on or off.
3. Keying
To put the Supervisor LX into keying operation
make sure that keying is turned on and pass thru is
turned off.
When in keying operation, the Supervisor LX
expects a video signal to be present on one or
more of its input channels and a VGA signal to be
present on its computer video input.
The sync polarity of the output signal can be set in
the output syncs menu.
The output rate will be the same as the VGA input
rate.
The output field rate will be the same as the VGA
input field rate.
In other words, the output rate of the video is now
locked to the input rate of the VGA signal.
Further setup and control of keying operation is
provided by additional menus that are only
available when keying is switched on. These
additional menus are:
Key Mode
Calibration
PC Col Temp
PC Contrast
Key Mode
There are three keying modes available.
PC Only ........... displays the VGA signal.
Video Only....... displays the video signal.
PC + Video ...... displays the VGA signal AND the
video signal.
The video signal is chroma keyed with the VGA
signal. This means that wherever the ‘key color’
appears in the VGA signal, it will be replaced with
video. The default key color is 96R, 32G, 96B. (If it
is intended to use this key mode then it is advised
that a copy of the Supervisor LX PC Control
program be obtained. This will enable the chroma
key setup of the PC to be optimized).
Note 1: switching between video and VGA using
keymode is synchronous. In other words, there is
no temporary loss of output and switching is
instantaneous.
Note 2: picture adjustment controls such as size
and position, procamps and enhance only apply to
the video signal and not to the VGA signal.
Note 3: if the VGA signal is lost while in keying
operation, the Supervisor LX will switch to flywheel
syncs to maintain, as close as possible, the output
rate of the lost signal. When the VGA signal
returns, flywheel syncs are switched off.
PC Col Temp and PC Contrast
These menus enable the color temperature and
contrast levels of the VGA signal to be adjusted.