®
Adjustments
The AVU6011A and AVU6111A receivers both include brightness and sharpness
adjustment dials. Additionally, the AVU6111A receiver is also equipped with two
extra dials to eliminate the effects of colour skew within the video image.
Brightness and sharpness adjustments
The brightness and sharpness adjustments
provided on every receiver allow you to
compensate for any losses incurred within
long cable links.
When making adjustments it is necessary to
have access to the receiver and to be able to
view one or both connected display screens.
Both adjustments, sharpness in particular,
are made easier when viewing high contrast
images with vertical edges, such as black lines
on a white background.
NOTE: Both video outputs are equally
affected by your brightness and/or sharpness
adjustments.
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Sharpness dial
Brightness dial
High contrast
black character
on white
background
Black or bright
white shadow
on the right
indicates the need
for sharpness
adjustment
To display a suitable high contrast image
• Open a word processor, type the capital
letter ‘H’, or ‘M’ and increase the point
size to 72 or higher. For best results, the
background should be white and the
character should be black.
• A BLACK shadow on the right of
the character indicates UNDER
compensation.
• A WHITE shadow on the right of the
character indicates OVER compensation.
To adjust brightness and/or sharpness
1 Carefully insert a small screwdriver into the dial labelled
BRIGHT
or
SHARP
, as
appropriate.
2 Slowly turn the dial clockwise or anticlockwise and observe the effect shown
on the screen. Withdraw the screwdriver when the displayed image is shown
at its optimum clarity.
3 If necessary, repeat step 2 for the other dial.
Note: If the sharpness control is set too high, the monitor may not be able
to display a picture. If this occurs, reduce the sharpness setting.
