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

26

Test Pattern — Press the Navigation buttons to select a test pattern to display or to 
turn off a test pattern. The available test patterns are Crop, Alternating Pixels, Color Bars, 
Grayscale, Blue Mode, and Audio Test (pink noise). The default setting is Off.

Figure 20. 

Available Test Patterns

NOTES: 

• 

The audio test outputs pink noise on the embedded digital audio output (2-channel, 
48 kHz, 16 bit).

• 

All test patterns include a single pixel border (except Blue mode).

Screen Saver and Timeout — Press the Left and Right buttons to select the screen saver 
setting or duration the screen saver remains active before sync is disabled. Press the Up 
and Down buttons to set the screen saver to a Black (default) or Blue screen or the screen 
saver time-out duration to a specified number of seconds. 
When there is no active video on the selected input, the device can mute the video output to 
black or blue for a set duration before disabling output sync. By default, the scaler outputs 
black video and sync (no sync time-out) with no active input applied.
The time-out duration can be set to Never (default) or to any duration from 1-500 seconds.
Auto-Image — Press the Navigation buttons to turn the automatic per-input Auto-Image 
mode On or Off (default). 
When enabled and a new input frequency is detected, the scaler first applies an existing 
Auto Memory for the signal (if Auto Memory is enabled). If no entry exists, it performs an 
automatic Auto-Image on the new signal. This sets a size and position for the image to fill 
the screen, with respect to the current Aspect Ratio setting.
By default, the Auto-Image threshold is 25% brightness. Analog video signals greater 
than the threshold are considered active video. To change the threshold value, use SIS 
commands (see 

Auto-Image threshold value

 on page 40).

Aspect Ratio — Press the Navigation buttons to set the aspect ratio setting of the active 
input to Fill (default) or Follow.
When in Fill mode, all inputs automatically fill the entire output. If an aspect ratio adjustment 
for a single input rate is desired, the correct size and center can be set up using Image Size 
and Image Position under Picture Controls (see 

Picture Controls Submenu

 on page 19). If 

auto memory is enabled, then these settings are saved and recalled the next time the signal 
is detected.
In Follow mode, each input rate is displayed with its native aspect ratio mode with the 
correct letter box or pillar box settings visible.
The scaler clears the previous size and position settings whenever the aspect ratio setting 
for an input is adjusted.

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