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13
by pressing the ESC key, or when the time allowed for displaying
the on-screen menu has lapsed (set in the Set-up Menu).
Inputs 5, 6, 7 and 8 can receive RGB and YCrCb signals, at 15
kHz, 32 kHz or higher. The association between the input and
the type of signal is made from the pull-down menu that appears
on the right of the < symbol after pressing the < key (Fig. 12b).
After selecting the source signal (by means of the and
keys), press MENU+/MENU - to confirm and close the pull-down
menu; the value you have just set will be displayed on the right
of the < symbol.
As with the other inputs, you can now select the input just set by
pressing the > key.
During the short time it takes to find the signal, a box appears
showing the signal requested. As soon as the signal is shown
in the box additional information is displayed concerning the
video standard (for video signals) or resolution (for graphic
signals), and format.
MAIN MENU
To access the main menu of the On Screen Display press the
MENU key on the keypad or the MENU+ or MENU- key on the
remote control.
The main menu is divided into three windows, PICTURE,
IMAGE and SETUP, in which the various adjustments are
grouped according to the frequency of use. Use and
to select the line corresponding to the adjustment you wish to
make (Fig. 13).
Picture Image Setup
Contrast
Colour
Tint
Sharpness
Filter
Cinema Mode
Video Type
50
50
50
3
2
Off
Normal
Auto
VCR
Brightness
60
Colour Temperature
Gamma Correction
Position
Y/C Delay
Magnification
1
Aspect
Picture Image Setup
Colour Temperature
Gamma Correction
Position
Y/C Delay
Magnification
1
Aspect
Normal
Anamorphic
Letterbox
Panoramic
Pixel to pixel
User 1
User 2
User 3
Picture Image Setup
The various menus only offer the relevant adjustments in
accordance with the type of input signal displayed (e.g. certain
typical adjustments for video signals, not necessary for graphic
signals, do not appear on the menus, and vice versa).
Some adjustments (e.g. BRIGHTNESS and CONTRAST) are
associated with a numerical value that can be varied within the
set limits using the keys / .
For others (e.g. VIDEO TYPE) you can choose between two
options presented on the same line (and selectable using the
keys / ).
Other adjustments (marked by the < symbol) provide submenus,
which appear as a superimposed window in which the selection
is made with the / keys (Fig. 14).
These submenus are accessed by pressing the < key, while
exit and return to the upper level occurs by pressing MENU+/-.
Press ESC on the remote control or keypad to interrupt the
menu display or wait for it to disappear automatically after the
number of seconds set on the SET-UP page.
PICTURE
This menu features the adjustments related to picture quality.
Adjustments that are not available for a given input do not
appear on the menu. Table 4 summarises the adjustments
available for each input. For a complete overview of the on-
screen menus, consult the ‘On screen menu layout’ in the
“Additional Information” section.
BRIGHTNESS
Use this control to adjust the image’s black level without
affecting white areas. Increasing the value will give more detail
in darker parts of the picture. For correct adjustment it may pro-
ve useful to display the signal relative to the grey scale within
which the black level and the level immediately above it must
be separately identifiable. Alternatively use a scene composed
of black objects alongside other dark coloured objects.
CONTRAST
Use this control to adjust the image’s black level without affecting
white areas.
To ensure correct adjustment, it may prove useful to display the
signal relative to the grey scale, within which the white level and
the level immediately below it must be separately identifiable.
Alternatively use a scene composed of well-lit white objects
surrounded by light coloured objects with lower level lighting.
COLOR
This control (also called Saturation) increases or decreases
the picture colour intensity. When set to zero, colour images
will be shown in black and white. Increasing the value, try to
find the point at which the colours look natural: suitable
references include skin tones and grass in landscape shots.
TINT
Controls the purity of the colours. Basically determines the
red-green ratio of the picture.
Reducing the value will boost the red contents of the picture,
increasing the value will boost the green tones. For this
adjustment use skin tones or a test pattern image with colour
bars as a reference.
SHARPNESS
Use this adjustment to increase and decrease the level of
picture detail.
When the sharpness value is reduced the image details
appear less pronounced, while increasing the value raises
image definition, making the outline of objects sharper.
Note that an excessively high value may result in a ‘noisy’ picture
and the edges of objects may be unnaturally defined.
Fig. 13
Fig. 14a
Fig. 14b