Custom input modes – Extron Electronics VN-Matrix 250 User Guide User Manual
Page 85
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, then click
Update
.
NOTE: The offsets are made relative to the current source format
“
digFirstPixel
” and “
digFirstLine
” values (see
).
z
Color space
(RGB/YPrPb) (see figure 66,
5
) — Because of the similarity between
analog RGsB (sync on green) and component YPrPb signals, sources using these
formats 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, has a red
or green color cast. Set the color space parameter to either RGB or YPrPb as required.
z
Resync
(see figure 66,
6
) — Click
Resync
to force an auto‑detection of the source
signal.
Custom Input Modes
There might be instances in which a VNE 250 cannot detect an input source. For example:
z
An unrecognized input source that is not defined in the
User
Source
Format
of the
encoder.
z
The timing of the input source deviates from the standard timings for that signal.
In these situations, you need to create a custom input mode for the new source.
NOTE: Custom input modes are necessary only for analog sources. A VN‑Matrix
automatically creates custom input modes for HDMI sources based on their
EDID.
Setting the EDID mode
It is easier to configure the custom input mode if the EDID mode on the VNE 250 is set
correctly. To set the EDID mode, perform the following steps:
1.
From the
Device List
, select the required encoder.
2.
When the
Device
tab opens, click on the
videoPort0
3.
In the
Reported EDID
drop‑down list, select the appropriate EDID mode. In most
cases, this will be
transparent
, which allows the EDID data of the display to pass
through the matrix to the source PC.
4.
Reboot the source PC to ensure it reads the correct EDID selection.
TIP: The EDID of your monitor has a significant effect on the mode that your
graphics card displays. Also, the mode selected on the source PC may not
produce the expected output resolution. For example, if the EDID of a monitor
does not report any wide screen modes, your graphics card may still allow
resolutions such as 1280x960, 1280x768, or 1280x720.
In this instance, the PC may output 1280x1024, and letterbox the wide screen
image so it is vertically centered on the monitor. Therefore, although you have
selected a mode such as 1280x960 on the computer, the VN‑Matrix and your
monitor detect this as 1280x1024. In this situation, creating a custom input mode
is unnecessary, because the VN‑Matrix has detected a valid 1280x1024 input
mode. The VN‑Matrix may ignore the mode because it has already found an
internal mode that correctly captured the source.
VNM 250 • Configuration with the VNM 250 GUI
79