Extron electronics VN-Matrix 250 Series User Manual page 91

14. Enter the active horizontal resolution in the
in the field (see figure
VSize
15.
Copy the values in the
panel to the
FirstPixel
16. Click the button (see
Update
settings are copied into the
designated as the controller.
17. Press (see
Save Source
VN-Matrix device designated as the controller.
With the drop-down list still set to auto, the VN-Matrix device should now select
mode
the new user mode in the
18. Display a moiré pattern and check for clocking errors in the same user format area.
Clocking errors appear as vertical banding on the displayed image. If clocking errors
exist, select the user mode from the
field. Each time you enter a new value in the field, you must click
PixelsPerLine
, click the
Update Save Source
encoder. Repeat this process until the clocking error is gone.
After you create a custom input mode, if the decoder does not find a suitable output mode,
you need to create a custom output mode (see
page).
NOTE: A stable video signal on the loop output of the encoder does not necessarily
indicate that the signal is being properly recognized. An encoder generates the
loop output signal by passing sync directly from the input connector to the output
connectors (a pass-through), so it is not dependent on any previously stored modes
to create a loop output.
TIP: Before creating the custom mode, be aware that the encoder can report
inaccurate values for active horizontal pixels (
( ).
digVSize
The encoder analyzes the content displayed by the source PC to determine these
values. As a result, if your source is displaying a 100 pixel by 100 pixel white box
against a black background, the encoder can report a digHSize value of 100, and a
digVSize value of 100 as well.
It is a good practice to ensure that your PC is displaying a full image, preferably full
white or a moiré pattern, before creating a custom input mode.
HSize
68, on the previous page).
9
and
digFirstPixel digFirstLine
and fields (see
FirstLine
figure 67, 1 on page 81). The
User.Source.Config
figure 68, ) to save the
£
field.
currentMode
drop-down list and adjust the value in the
Name
button, and reboot the VN-Matrix controller and
Custom Output
digHSize
VNM 250 • Configuration with the VNM 250 GUI
field and the active vertical resolution
fields of the
Device Status
figure 68, ).
¢
User Source Format
file of the VN-Matrix device
file of the
User.Source.Config
Modes, on the next
) and active vertical lines
83