Peaking and level adjustment – Extron Electronics MTP U R RS User Manual
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MTP U R Series • Installation
The maximum setting (at the clockwise limit) provides 100%
peaking. Adjust this control while viewing the displayed image
to obtain the optimum picture sharpness. See “Peaking and
Level Adjustment” section below for details.
N
To avoid possible video loss due to errors in the video
format detection, the user should always start with
minimal peaking and level, then only increase values as
required.
h
Audio LED (MTP U R RSA SEQ models only) — This LED
lights in audio mode by default. The audio signal present is
output on the rear panel captive screw connector.
i
RS-232 LED (MTP U R RSA SEQ models only) — This LED
lights when connected to an RS-232 transmitter. The signal is
output on the rear panel captive screw connector. The receiver
auto-detects the RS-232 signal on pair 3 and 6 of the twisted pair.
N
Only one signal type at a time is output, either audio or
RS-232. The lit LED indicates the signal being output.
Set up the receiver for unidirectional communication
when it is to be used with an MTP DA to avoid any
RS-232/Audio detection issues.
When using with an MTPX Matrix Switcher, set up the
receiver for unidirectional for transmitter to receiver
communication; otherwise it should be set to
bidirectional when using the RS-232 output insert
connections on the matrix.
Peaking and Level Adjustment
For best performance and video format detection, the
equalization of the MTP U R should be adjusted properly.
To achieve this do the following:
1
.
Terminate the green video signal output with a 75 ohm
resistance, and measure the video signal.
N
Gain adjustment should be set so that a white field video
signal is +0.7 volts from the ground level.
Peaking adjustment should be set using the highest
frequency video format signal for the system in RGB,
Component, or S-Video.
2
.
Using an alternating black/white pattern, adjust the
peaking so that the video signal matches that of the white
field video. This equalizes both the low frequency (white
field) and the high frequency (alternating black/white
field) to the same video level for best results.
Do not over-peak the signal.
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