Инструкция для EXTRON ELECTRONICS IN1608 MA User Guide, IN1608 SA User Guide, IN1606 User Guide, IN1608 Series User Guide

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IN1606 and IN1608 Series Scaling Presentation Switcher • Operation

20

Input Submenu

Figure 16. 

Input Submenu (IN1608)

The Input submenu allows adjustment of the active input. 
Auto-Image — Press the Enter button to execute an Auto-Image on the active input.  
Auto-Image updates active pixel, active lines, horizontal and vertical start, phase, horizontal 
and vertical image position, and horizontal and vertical image size settings. 
For analog video sources with dark backgrounds or borders, the Auto-Image threshold 
can be adjusted with SIS commands. Raising the Auto-Image threshold ignores potential 
extraneous sync pulses that may have been embedded in RGB signals (see 

Auto-Image 

threshold value

 on page 40). Lowering the threshold can allow for more accurate sizing 

and centering on dark video sources (such as dark PC desktop).
The following is performed during an Auto-Image when the aspect ratio is set to Fill:

• 

Horizontal and vertical image position return to 0.

• 

Horizontal and vertical image size fill to match the current output resolution.

The following is performed during an Auto-Image when the aspect ratio is set to Follow:

• 

The horizontal and vertical image position and image size is set to maintain the native 
aspect of the input rate with regard to the current output resolution.

Set the aspect ratio on the Advanced submenu (see 

Aspect Ratio

 on page 26).

NOTE:  Aside from the standard Auto-Image SIS command (see the 

SIS command

 on 

page 40), there are unique commands to execute an Auto-Image and fill the output 
and to execute an Auto-Image and maintain the input aspect ratio. These commands 
ignore the current aspect mode setting, auto-image the input, and then apply a “fill” or 
“follow.”

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