Abt VP30 - Manual (Page 26)

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button to display the current additional bias delay setting (default 0). Use the Up or Down button to
increase or decrease the delay in milliseconds.
NOTE: The total audio delay cannot be less than zero, that is, the iScan cannot have negative audio
delay. If you choose to decrease the automatic delay setting by a certain amount, this value could
be changed by the iScan in situations where the iScan’s calculated delay plus the specified additional
delay results in a value less than zero.
Picture Controls
Brightness
This control adjusts the brightness (black level) of the overall image output from the iScan VP30.
If you turn it up too high, it may make black look gray. In general, you should adjust this up until
you see the black areas of your display turn gray and then back it down just below that point.
Default setting is 0 (midrange).
Contrast
Contrast adjusts the ratio between white and black signal levels and is effective as a gain control.
The difference between this and the Brightness control is that this adjusts the difference between
the brightest and darkest part of the image. note that all displays have a maximum white level.
Going beyond this level only “clips” the upper gray levels and you will lose color resolution at the
brighter levels. Adjust this control up until you see the brighter levels of the image begin to wash out.
At this point, back it down just below that point. The default setting is 0 (midrange).
Saturation
The iscan Vp30 allows you to control the saturation of the image independent of the display.
saturation is the same as the “Color” control on most TVs and controls the richness of the color in the
image. The default setting is 0 (midrange).
Hue
As with Saturation, hue can also be controlled independent of the display. Hue is the same as the
“Tint” control found on most TVs and controls how colors are displayed in the image. The Hue control
is not available for Component or PAL/SECAM inputs. The default setting is 0 (midrange).
Sharpness
The Sharpness setting adjusts the sharpness of the selected input signal. The default setting is 0.
Y/C Delay
Sometimes there is a lag between the Luminance (Y) and the Chrominance (Pb/Pr or Cb/Cr) of the
video signal. This causes a color “smearing” because the color component of the image is not lining up
properly to the black and white luminance component of the image. The iscan Vp30 can compensate
for these errors in the source signal by shifting the phase of the Y with respect to the C, forward or
backward to align them properly.
use the Down and Up buttons to adjust the phase and observe the effects on your display to obtain
the optimal setting. The default is 0.
Chroma Filter (Auto CUE-C)
This feature removes chroma upsampling errors (CUE) found in video sources which have been MPEG
encoded and then improperly decoded.
• Off - No chroma filtering. Use this setting if the source does not have a CUE problem.
• On - Chroma filtering is always on. Use this setting if the source is known to have a CUE problem.