Firmware Pages and Descriptions

 

RGB Adjustment Page Elements (Cont.)

 

 

 

 

Skew:

The process of skewing involves applying a convergence control to the Red,

 

(not an issue if using a

Green, and Blue signal delivery through the terminal end of a cable. The skew

 

VideoTwist 7987 cable)

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.

 

 

 

 

Red skew

Use the UP/DN buttons to adjust the Red signal delay time (in nano-seconds).

 

 

• Skew/Delay = 0 - 63, default = 0.

 

Green skew

 

 

Use the UP/DN buttons to adjust the Green signal delay time

 

 

(in nano-seconds).

 

 

• Skew/Delay = 0 - 63, default = 0.

 

 

 

 

Blue skew

Use the UP/DN buttons to adjust the Blue signal delay time (in nano-seconds).

 

 

• Skew/Delay = 0 - 63, default = 0.

 

 

 

 

Full Screen Edit Mode:

Pressing the incoming signal area (FIG. 111) activates the Full Screen Edit

 

 

mode. The on-screen popup provides each field with UP/DN buttons to

 

 

more accurately adjust the values for all of the above mentioned RGB

 

 

parameter fields.

 

 

• 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.

 

 

 

 

Adjusting the Incoming Signal on the RGB Adjustment Page

After opening the RGB Adjustment 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.

VG-Series Modero Touch Panels

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Image 155
AMX NXD/NXT-1200VG Adjusting the Incoming Signal on the RGB Adjustment, Skew, Full Screen Edit Mode, Parameter fields