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TEST SCREEN 21
ENGLISH
Test Screen
Test Screen
When you activate the Test Screen via the OSD
you can activate a still image to test all settings
and the video performance of your TV. Please
note that the test screen is only available in
Standard Definition mode, that is with one
of the analog video outputs
0123
connected. If you have connected the HS 250
to the screen via the HDMI output
H
, the test
screen is not available. With the vertical color
bars you can test the following:
■ proper color intensity setting on your TV,
■ the proper color of each bar, showing if the
proper video standard is turned on: the colors
should be (left to right): black, white, yellow,
cyan (turquoise), green, magenta (purple),
red, blue, black.
■ proper color transition, seen as sharp
separation of the bars, S-Video will be better
than Video, RGB best of all.
■ the performance of the color filter in your TV
(with ”Video” signals), bar edges should
show no vertical crawling dots. Here S-Video
and RGB formats usually give no problems.
With the grey scale and the black/white fields
below the color bars the brightness and contrast
of your screen can be adjusted optimally, see
chapter ”TV Picture Adjustment” below.
TV Picture Adjustment with
Test Screen
These adjustments may be done now, but you
can also make them after setup has been
finalized.
Brightness adjustment:
1.Turn down the color control on your TV until
the color bars are visible in black and white.
2.Adjust the contrast to the lowest level where
you still can see all bars within the grey scale
in the test picture separately and clearly.
3.Adjust the Brightness so that the bars in the
grey scale are all visible.The bar furtherst to
the left has to be as black as possible rather
than grey but the next aside must clearly be
differable. All the bars in the grey scale have
to be gradually and evenly changing from
black to whiter, going from left to right.
Contrast adjustment:
1.Adjust the contrast on your TV until you see a
bright white bar in the right low corner of the
screen and a deep dark black bar at the left.
The optimal contrast setting will depend from
your preference and the surrounding light in
the TV room.
2. If the brightness of the white bar will no more
increase while turning up the contrast or
when the borders of the white ”harman/kar-
don” text letters on top will bloom (overlight)
into the black areas, what drasticly will
decrease the sharpness of the script, then the
Contrast has been turned up too much.
Reduce the contrast until these effects will
disappear and the video still looks realistic.
3. If you are watching TV with a usual surround-
ing daylight, adjust the Contrast so that a
normal video picture has about the same
looking as the surroundings in your room. By
that way the eye is relazed when watching
the TV picture.This contrast setting may be
reduced when the surrounding light is
dimmed, usually improving the sharpness of a
video a lot thereby.
4.The grey scale in the middle line needs to
have the same clear difference between each
bar as before the contrast adjustment. If not,
go back to the brightness adjustment and
repeat
step 3 and then the contrast adjustments,
making only minor adjustments each time for
optimisation.
Color adjustment.
1.When the Brightness and the Contrast are set
optimally, turn up the color control to the level
of your perference.Adjust to the level where
the colors look strong but still natural, not
overdone. If the color level is too high,
Color Bars
Grey Scale
100%
Black/White
fields
depending from the TV used some of the bars
will seem wider or the color intensity will not
increase while the control is turned up.Then
the color control must be reduced again.At
the end you should test the color intensity
also with a video, e.g. pictures of natural
faces, flowers, fruit and vegetables and other
well known natural articles of our life most
usefull for an optimal setting of the color
intensity.
2. If your TV has a Tint option (with most
European TVs this is available or effective only
with NTSC signals, not with PAL), use the
large white bar below the Greyscale to tweak
the warmth of the picture. Every viewer has a
difference in preference as how the glow of
the picture should be. Some prefer a little
colder picture, some a warmer glow.The Tint
function on your TV and the white bar can be
used to control this.Adjust the Tint to the
level where you feel the white color has the
tone you prefer.
Sharpness Adjustment
Contrary to intuition, the picture will appear
sharper and clearer with the sharpness, or
Edges, setting backed off from the maximum
setting. Reduce the sharpness setting on your
television, and the Edges setting on the HS 250
video adjustments menu if necessary, to
minimize the appearance of any white lines
between the bars in the gray scale portion of the
test screen.
Convergence and Edge Focus
The crosshatch pattern that surrounds the test
screen may be used to evaluate edge focus and
convergence in front- or rear-projection video
displays. However, the controls used to adjust
these parameters are often not user-accessible.
In any event, these adjustments are extremely
complex, and require proper training and
experience to avoid worsening the situation.
Therefore, it is recommended that if you are
unable to improve the picture using the
available controls, contact the video display
manufacturer’s authorized service representative
for assistance.
When all desired setup and configuration entries
have been made, use the
KL
Navigation
Buttons
9
until “Done” is highlighted at the
bottom of the Video Adjustments submenu.
Press the Enter Button
6
to select it to
return to the on-screen menu system.Then,
press the Setup Button
8
to remove the
menu displays from the screen.The unit will
return to normal operation and you are ready to
enjoy the finest in DVD or CD playback!
34138_HS250_UK 18/09/07 13:58 Side 21