HS 100 EU - Harman Kardon Audio User Guide / Operation Manual. Page 17

TEST SCREEN  17

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. With the
vertical color bars you can test the following:

• proper color intensity 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 gray scale and the black/white fields
below the color bars the brightness and contrast
of your screen can be adjusted optimally, see 
”TV Picture Adjustment” below.

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

gray scale are all visible. The bar furthest to the
left has to be as black as possible rather than
gray but the next must be clearly
distinguishable. All the bars in the gray scale
have to be gradually and evenly changing from
black to whiter, from left to right.

Contrast adjustment:
1. Adjust the contrast on your TV until you see a

bright white bar in the lower right corner of
the screen and a deep dark black bar at the
left. The optimal contrast setting will depend
on your preference and the surrounding light
in the TV room.

2. If the brightness of the white bar does not

increase while turning up the contrast or when
the borders of the white letters on top bloom
(overlight) into the black areas, drastically
decreasing the sharpness of the script, then
the Contrast has been turned up too much.
Reduce the contrast until these effects
disappear and the video still looks realistic.

3. If you are watching TV in daylight, adjust the

Contrast so that a normal video picture has
about the same look as the surroundings in
your room. This relaxes the eye when watching
the TV picture. This contrast setting may be
reduced when the surrounding light is
dimmed, usually improving sharpness.

4. The gray 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 Brightness and Contrast are set

optimally, turn up the color control. Adjust to
the level where the colors look strong but still
natural, not overdone. If the color level is too
high, depending on the TV used some of the
bars will seem wider or the color intensity will
not increase when 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 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 Grayscale to tweak the
warmth of the picture. Every viewer has a
difference in preference. 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.