Blacking Out The Screen And Muting The Audio; Freezing The Output; Outputing A Test Pattern; Previewing The Scan Rate - Extron electronics ISS 408 User Manual

Blacking out the screen and muting the audio

You can mute the video (black out the screen) and/or audio to the program or
preview output from the Control page as follows:
Click the Video/Audio, Video, or Audio button to select both the video and
1.
audio planes, the video plane only, or the audio plane only for muting.
Click the Program or Preview Black/Mute button. The Black/Mute button
2.
turns blue to indicate a video and audio mute or video only mute, or it turns
yellow to indicate audio mute. If you muted the program output, the front
panel Black and/or Mute LEDs light.
Click the Black/Mute button again to unmute the video and/or audio.

Freezing the output

You can freeze the program or preview video output by clicking the Program or
Preview Freeze button. The Freeze button turns blue. When the output is frozen,
the input source can be removed and the ISS functions as a video store.
Click the Freeze button again to toggle freeze mode off.
Outputting a test pattern
You can select a test pattern to output on the program and/or preview monitor.
The test patterns are helpful when adjusting the connected displays for color,
convergence, focus, resolution, contrast, grayscale, and aspect ratio.
Output a test pattern as follows:
1. Click in the Test Pattern field. A drop-down box appears (figure 6-4).
Figure 6-4 — Test pattern drop box
2. Click the desired test pattern.
Click the Program and/or Preview check box to turn on the test pattern.
3.

Previewing the scan rate

You can read the horizontal and
vertical scan rates of the
preview and program output by
clicking the View Preview Scan Rate or View Program Scan Rate button. The
horizontal and vertical frequencies are displayed in the Horizontal and Vertical
fields on the page.

Using Blue-Only mode

You can toggle Blue-Only mode on and off by clicking the Blue Screen Mode On
check box. Blue-Only mode is helpful in the setup of the color and tint of the
incoming video signal. In the Blue Only-mode, only the sync and blue video
signals are passed to the display.
ISS 408 Integration Seamless Switcher • Ethernet Operation 6-5