Selecting mtpx plus pre-peak, Setting mtp receiver level/peaking – Extron Electronics MTPX Plus 6400 Series Setup Guide User Manual
Page 25
NOTES:
•
When the skew adjustment is set to zero, the MTPX
Plus cannot shift the rightmost video image to the
left.
•
A 2-nanosecond adjustment is very fine. Up to 10
nanoseconds of delay may be necessary before you
detect a change in the display.
7.
Adjust the skew setting of the leftmost video signal to the right
until all three colors are properly converged.
8.
If either of the two remaining colors is left shifted, repeat steps 4
and 6.
9.
Repeat steps 2 through 7 for all other inputs.
10.
Connect an oscilloscope (preferred) or a monitor (acceptable) to
the MTPX twisted pair output to be adjusted, via an MTP receiver.
11.
Apply a crosshatch test pattern to one of the local (VGA) inputs on
the MTPX Plus.
12.
Tie the local input receiving the test pattern signal to the output
to be optimized.
13.
Use the test equipment or examine the displayed video image
with a critical eye to determine which video
signal — red, green, or blue — is most shifted to the left.
14.
If necessary, click Tools > MTPX Picture settings.
NOTES:
•
When the skew adjustment is set to zero, the MTPX
Plus cannot shift the rightmost video image to the
left.
•
A 2-nanosecond adjustment is very fine. Up to 10
nanoseconds of delay may be necessary before you
detect a change in the display.
15.
Adjust the leftmost video signal to the right until all three colors
are converged.
16.
If either of the two the remaining colors is left shifted, repeat
steps 13 and 15.
17.
Repeat steps 11 through 16 for all other outputs.
Selecting MTPX Plus Pre-Peak
NOTE: If the cable between the MTPX Plus and the receiver is
300 feet (91 m) or longer, turn the Pre-Peak feature on
the MTPX Plus on. For shorter cables, turn the feature
off.
If necessary, click Tools > MTPX Picture settings and then click
in the output Pre-Peaking box to toggle Pre-Peaking on and off.
Setting MTP Receiver level/peaking
If level/peaking is available on the connected receiver, adjust it as
follows:
1.
Connect an oscilloscope or monitor to the output of the MTP
receiver.
2.
If using an oscilloscope, apply a white field test pattern to one of
the local (VGA) inputs on the MTPX Plus.
If using a monitor, apply a grayscale test pattern to one of the
local (VGA) inputs on the MTPX Plus.
TIP: The Extron VTG 300 or VTG 400 are recommended to
provide the test pattern.
3.
Tie the local input receiving the test pattern signal to the output
connected to the MTP receiver to be optimized.
VTG 300
Local (VGA)
Input
MTPX Plus
RGB/R-Y,Y,B-Y
S-VIDEO
COMPOSITE
VIDEO
FAN ASSEMBLY
LOCAL INPUTS
1
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INPUTS
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5
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RJ-45
2
1
3
4
RJ-45
MTP
Receiver
INPUT
BUFFERED
OUTPUT
OUTPUT
POWER
12V
.5A MAX
MTP RL 15HD A
ON
1 2 3 4 5 6
H SYNC +
V SYNC +
C SYNC
SOG
VIDEO
END UNIT
1
MONO AUDIO
2
Oscilloscope
or display
4.
Adjust the level and peaking on the receiver in accordance with
the applicable MTP product manual.
5.
Repeat steps 1 through 4 for each receiver to be optimized.
40
MTPX Plus 6400 • Remote Control and Optimizing the Video
41
MTPX Plus 6400 • Remote Control and Optimizing the Video