Black Box Multi-tool Black Box Multi-tool User Manual

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Page 12
724-746-5500 | blackbox.com
AVU4001A
Chapter 4: Video Sharpness Adjustment
4. Video Sharpness Adjustment
The remote module has a video adjustment to control picture sharpness on the
display screen.
To adjust video sharpness:
1. On the computer, display a suitable high contrast image, ideally with one
or more black vertical lines on a white background (for example, a capital
“H” at 72 points in a word processor—see Figure 4-1).
Figure 4-1. High-contrast image.
2. Insert a small screwdriver into the adjustment screw on the side of the remote
module.
3. Turn the screw fully clockwise—you should see a bright white shadow to the
right of your high contrast image
4. Turn the screw counter-clockwise until the white shadow disappears and the
edges of your image become sharp.
Figure 4-2. Screw on the side of the remote module.
High contrast
black character
on white background
Black or bright white
shadow on the right
indicates the need for
sharpness adjustment
Screw

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