Extron electronic ISM 482 - Manual (Page 37)

Operation, cont’d
Integration Scaling Matrix Switcher • Operation 3-12
Test Pattern submenu
The Test Pattern submenu lets you select from among several test patterns and
assign the selected pattern to an output. The test patterns are helpful when
adjusting the connected displays for color, convergence, focus, resolution, contrast,
grayscale, and aspect ratio.
Use the Adjust knob to select a test pattern. The options are: Color Bars,
crosshatch, 4 x 4 crosshatch, grayscale, crop, alternating pixels, film aspect ratios
1.78, 1.85, 2.35, and ramp.
Use the Adjust knob to assign the output(s) for the selected test pattern. Select
among neither output (both off), output 2, output 1, or both outputs.
Blue-Only Mode and Edge Smoothing submenu
The Blue-Only Mode and Edge Smoothing submenu lets you turn the blue mode
and edge smoothing features on and off. 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. Edge enhancement mode
smooths edges of a picture by minimizing the differences between pixels.
Use the Adjust knob to assign Blue-Only Mode to neither output (both off),
output 2, output 1, or both outputs. The default is Off.
Use the Adjust knob to assign Edge Smoothing to neither output (both off),
output 2, output 1, or both outputs. The default is Off.
Blanking submenu
The Output Blanking submenu displays and allows you to adjust the top and
bottom line blanking on the output monitors within a range of 0 to 200 lines.
During scaling, captioning and tapehead switching in the video’s blanking area
may show up as picture noise. Using blanking, you can add black lines at the top
and bottom edges of the image to eliminate edge noise.
Select the output that you want to blank by pressing the desired Output button.
Use the Adjust knob to increase or decrease the top line blanking. The default is
0 lines.
Use the Adjust knob to increase or decrease the bottom line blanking. The default
is 0 lines.
RGB Delay submenu
The RGB Delay submenu displays and lets you set the RGB delay when a switch is
made. With RGB delay, sync is never removed from the display. Rather, the ISM
blanks the RGB (video) outputs while the scaler locks to the new sync, and then
switches the RGB signals. This allows a brief delay for the displays to adjust to the
new sync timing before displaying the new picture, which appears without
glitches. RGB delay is also known as Triple-Action Switching
™ or video mute
switching.
Use the Adjust knob to select the blanking period (RGB delay time) for output 1
from 0 seconds to 5 seconds in 0.1 second steps. The default is 0.2 seconds.
Use the Adjust knob to select the blanking period for output 2.