Adjusting The Incoming Signal On The Rgb Settings Page - AMX NXD-1700VG Instruction Manual

RGB Settings Page Elements (Cont.)
Green Contrast
Blue Contrast
Skew:
(not an issue if using a
VideoTwist 7987 cable)
Red skew
Green skew
Blue skew
Full Screen Edit Mode:

Adjusting the Incoming Signal on the RGB Settings Page

After opening the RGB Settings page, if the NXA-RGB is receiving an RGB signal, this signal is then displayed within the incoming
signal area. By pressing within this area, you are provided with a more accurate method of altering the incoming RGB signal by
viewing it at full-screen resolution and activating only specific RGB configuration pop-ups.
To adjust these properties:
1. Press the incoming signal area of the RGB Settings page to launch the Full Screen Edit mode, display the incoming image at full
screen, and place a grey RGB Adjustments bar on the bottom of the screen.
2. Press this grey bar to maximize the RGB Adjustments popup menu (FIG. 110) which provides you with much more accurate
adjustments of the incoming signal properties. This menu can be dragged across the screen for a better view of the underlying
image. Once you exit this menu, the grey bar is positioned back onto its original location.
Modero VG Series Touch Panels - Instruction Manual
Use the slider bar to alter the contrast of the green color value.
• Range = 0 - 255, default = 60.
• For more accurate control, you will have to go into the Full Screen Edit Mode described in the following
section.
Use the slider bar to alter the contrast of the blue color value.
• Range = 0 - 255, default = 60.
• For more accurate control, you will have to go into the Full Screen Edit Mode described in the following
section.
The process of skewing involves applying a convergence control to the Red, Green, and Blue signal delivery
through the terminal end of a cable. The skew value conforms to a nanosecond signal delay of the individual
RGB signals.
Different CAT5/6 cables use different materials and come in different cable lengths. Often, the terminal ends of
these individual cable pairs are not always equal in length and can therefore result in the signal being delivered
to the terminal end of the cable at a different time. This time can be a difference of a up to 30 nano-seconds @
200ft, and that can be more than enough to cause the image to appear "off" or blurry. For this reason, AMX
recommends using the Belden Brilliance VideoTwist 7987 cable. Although this cable is not CAT5 compliant, it is
designed to control skew between the red, green, and blue video signals. Therefore, for longer cable runs, the
video quality will be much higher if this cable is used. With other cables, the interplay between Cable Variance
(cable length) and Skew Control must be taken into account when adjusting for image quality.
Skew control provides an on-screen RGB Skew Adjustment popup dialog that allows you to select from several
RGB specific signal delay (skew) adjustment settings.
Note: It is recommended that you be in the Full Screen Edit Mode when adjusting skew.
• Press the Adjust button to open the RGB Skew Adjustment popup dialog.
• Use the Hide button to close the popup.
• Range = 0 - 63, default = 0.
Note: If you are using a cable run over 50 ft. (15.24 meters), this can cause the image's RGB colors to become
misaligned and your image to appear blurry. The skew control then becomes a method or re-aligning the delivery
times of the individual signals to the terminal NXA-RGB card.
Use the UP/DN buttons to adjust the Red signal delay time (in nano-seconds).
• Skew/Delay = 0 - 63, default = 0.
Use the UP/DN buttons to adjust the Green signal delay time (in nano-seconds).
• Skew/Delay = 0 - 63, default = 0.
Use the UP/DN buttons to adjust the Blue signal delay time (in nano-seconds).
• Skew/Delay = 0 - 63, default = 0.
Pressing the incoming signal area (FIG. 109) activates the Full Screen Edit mode. The on-screen popup
provides each f ield with UP/DN buttons to more accurately adjust the values for all of the above mentioned
RGB parameter f ields.
• This mode causes the incoming signal to be displayed at full screen and places an RGB Adjustments bar on
the bottom of the screen.
• Pressing the bar launches a draggable popup of the RGB adjustment section over the full screen image.
• This popup allows you to view a full-screen version of the signal and alter it without having the image
blocked by displaying only individual RGB adjustment dialog and specific RGB configuration pop-ups.
Firmware Pages and Descriptions
110