Extron electronics IN1404, Руководство пользователя

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IN1404 User’s Manual 25
Adjusting advanced input settings
Blanking Area
Active Area
H-Blanking
Active Pixels
Ac
tiv
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L
in
e
s
V-
B
la
n
k
in
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Total Pixels
T
o
ta
l Li
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Figure 4. — Input settings
The input settings control the following:
•
H-Blanking : Left edge of image
•
Active pixels : Right edge of image
•
Total pixels : Right edge of image
•
V-Blanking : Top edge of image
•
Active lines : Bottom edge of image
Use these controls to match the input video signal, framing the actual active area.
Active pixels and total pixels are interactive. Setting one may require readjusting the other.
Input blanking adjustment
In Figure 5 on the following page, the input blanking is set incorrectly (as indicated by the dashed
lines). If the H-Blanking is set to less than the actual H-Blanking, the IN1404 will look for the active
area before it really occurs. This results in a blank border on the left side of the active area, and
cropping on the right side of the active area. This makes the image appear to be shifted to the right.
Similarly, if the V-Blanking is set less than the actual V-Blanking, the IN1404 will again look for the
active area before it really occurs. This results in a blank border on top of the active area, and
cropping on the bottom of the active area. This makes the image appear to be shifted down.