Abt iScan VP20 Owner's Manual - page 38
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Half-Transparent Black/White
This test pattern has the left half of the image transparent (i.e., the left half of the current video
source is displayed on the left half of the image), with the right half of the image composed of a
standard black level on the top half and a standard white level on the bottom half. The black level
is 0 IRE (10-bit value of 64, or an 8-bit value of 16) and the white level is 100 IRE (10-bit value of
940, or an 8-bit value of 235). This pattern is useful for matching the black/white levels of an input
source to the reference black/white levels of the test pattern. If a display is first set up for black
and white levels using the iScan VP20’s test patterns, then each input source can be quickly and
accurately matched to these reference levels by visually comparing the video source image on the
left half of the display to the reference test pattern levels on the right half of the display. The test
pattern’s black and white blocks are designed to match up with standard test patterns available
from hardware or software (e.g., DVD) test pattern generators.
Half- Transparent Color Bars
These test patterns have the top half of the image transparent (i.e., the top half of the current video
source is displayed on the top half of the image), with the bottom half of the image composed of a
standard set of color bars. These patterns are useful for matching the color levels of an input source
to the reference color levels of the test patterns. If a display is first set up for color levels using the
iScan VP20’s test patterns, then each input source can be quickly and accurately matched to these
reference levels by visually comparing the video source image on the top half of the display to the
reference test pattern levels on the bottom half of the display. The test pattern color bars are
designed to match up with standard test patterns available from hardware or software (e.g., DVD)
test pattern generators. To ensure compatibility with a wide variety of color bar patterns, there are
four different half-transparent color bar patterns available – 75% color bars with 7 bars (white,
yellow, cyan, green, magenta, red, blue), 100% color bars with 7 bars, 75% color bars with 8 bars
(white, yellow, cyan, green, magenta, red, blue, black), and 100% color bars with 8 bars.
Troubleshooting
1. Problem: My iScan VP20 shows an error message.
If the iScan VP20 does not boot correctly, you may get an error message. Performing a hard reset
of the iscan Vp20 should clear any memory. if you still get an error message after performing a
hard reset, contact our Technical Support department for service.
•
Perform a hard reset of the iScan VP20:
- unplug the power from the back of the unit
2 - Wait 5-0 seconds
3 - reinsert the power plug back into the back of the unit
2. Problem: A blue screen appears when I connect the iScan to the DVI or
HDMI input of my display.
The default output from the iScan VP20 is digital RGB 4:4:4 (DVI Standard). Make sure that the
display that you are connected to is HDCP compliant.
3. Problem: The Blue status LED blinks on the front panel of the iScan VP20.
A blinking blue light on the iScan VP20 means that the iScan is processing an HDCP-
protected signal, but is unable to authenticate with the display. Verify that your display is HDCP
compliant. If it is not HDCP compliant, use component connections. If the display is compliant,
then verify that the ‘HDCP mode’ is set to ‘On’ in the ‘Input Adjust’ and ‘Output Setup’ menus.
If the problem persists, check the cabling and try new cables, if possible or try cycling the
power on your display or HDCP source.