Extron Electronics VN-Matrix 200 Series - Manual (Page 63)

c
Blanking (Image Positioning) — In analog video and graphics sources, active
video occupies an area in the middle of the video frame. Around this is a non-active
area used for horizontal and vertical blanking signals.
The VNC 200 normally ignores the blanking area and only digitizes the active video
area. To do this, it needs to know the position of the first active line of video and the
first active pixel on that line. This is controlled by the
blanking parameter. This is
normally set to auto which allows the VNC 200 to calculate the values automatically.
If required, the calculated values for the first line and first pixel can be adjusted by
applying a manual offset. To do this, set the
blanking parameter to manual and type
a positive or negative integer value into the pixels or lines fields as required and
click Update .
NOTE: The offsets are made relative to the current Source Format ‘digFirstPixel’
and ‘digFirstLine’ values.
d
Color Space (RGB / YPrPb) — Because of the similarity between analog RGsB (sync
on green) and component YPrPb signals, sources using these transports may not
auto-detect correctly.
RGsB and YPrPB sources have different color spaces and if the wrong setup is applied
the resulting image, although stable, will have a red or green color cast.
Set the color space parameter to either RGB or YPrPb as required.
e
Resync — Click to force an auto-detection of the source.
Custom Input Modes
There may be instances when a VN-Matrix device configured as an encoder may not
detect an input source. Examples of this may include:
• An unrecognized input source that is not defined in the User Source Format of the
encoder.
• The timing of the input source may deviate from the standard timings for that signal.
In these situations, you will need to create a custom input mode for the new source.
NOTE: Custom input modes are only necessary for analog sources. A VN-Matrix
will automatically create custom input modes for DVI sources based on
their EDID.
Setting the Proper EDID Mode
It will be easier to configure the custom input mode if the EDID mode on the VN-Matrix
encoder is set correctly.
VN-Matrix 200 Series • Advanced Setup Procedures 58