XCMG XDN450 Operation Manual page 57

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3.5.2.5 Bull's eye correction
Enter the "bullet correction" screen:
Instructions:
Put appropriate light into the target box, small display on the left side of the console (as
shown in the figure below) can see the target circle and XY coordinates as the principle, the
small green coil of the display must match the target circle seen by the camera is the correct
design set. If there is no match, adjust the X coordinate value, Y coordinate value and radius so
that the green drawing line matches the actual target circle.
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