C2-5000 Series Universal Scaler Operation Manual
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operation: “Off”, “Low”, “Med.” or “High”. Once you have made your selection,
press the Menu Select knob once to store the new value in temporary memory.
Press and hold the knob until you hear the “Beep” to make a permanent change.
13.14 Aspect Ratio
Adjust Scaler Parameters
Aspect Ratio [ 4:3]
Earlier, you learned how to set aspect ratios for an input. This adjustment is for
the output. When you are parked on the LCD screen shown above, press the
menu select knob to change from 4:3 to 16:9 and vice versa. This adjustment is a
simple toggle meaning it will be in one status or the other. To make your change
permanent, press and hold the Menu Select knob until you hear the “Beep”.
14.0 ADJUST LOCK/OVERLAY SUB MENU
The Third Sub Menu is called Adjust Lock/Overlay. The word “
Lock
” refers to the
action of locking the Scaler to one of the input sources. Locking the Scaler in this
manner allows you to perform Picture-In-Picture as well as Keys and similar
special effects. The word “
Overlay
” actually encompasses both Overlay and
Underlay features. The Lock feature is tied to the background image and the
Overlay/Underlay refers to the foreground image.
On occasion, the foreground image has to be positioned with respect to the
background image’s synchronizing pulses so that both appear to have the same
centering characteristics to the viewer. In other words, if the foreground image’s
synchronizing pulses are shifted a bit with respect to the background image’s
synchronizing pulses, you need a means to line things up so that the pictures
themselves are not offset with respect to one another.
The
Lock Pixel Offset
function and
Lock Line Offset
functions are used to
make the adjustments to time the synchronizing signals with respect to one
another.
Y Key Min/Max, U Key Min/Max and V Key Min/Max
adjustments are used to
make the keying function as “clean” as possible, meaning the image keyed over
the background stands out sharply and clearly from the background.
Note that if at all possible you want the background to be a high-resolution
image, i.e. an RGB computer image. This is because the quality of the
background image controls the quality of the foreground image as well.
It’s normally not necessary for you to adjust the Lock Pixel and Lock Line
parameters but in the event you need to do so, here are the procedures:
Summary of Contents for C2-5000 Series
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