Installation manual

19
c3X 1080
These parameters do not normally require adjustment because
the system checks the input signal and automatically sets the
most suitable values. However, if the image is not perfectly
centralised it may prove useful to request the system to repeat
the input signal analysis and image positioning, calling the au-
tomatic control procedure with button A on the remote control
or the AUTO button on the keypad. When this procedure is called
it is helpful to have a while or light coloured background on the
screen in the current picture.
Frequency/phase
These adjustments, available for progressive signals and for si-
gnals from a PC, ensure correspondence between the number
of pixels making up the signal and the number of pixels that
make up the projected image.
These parameters do not normally require adjustment because
the system checks the input signal and automatically sets the
most suitable values. If however the image is disturbed (loss of
resolution between equidistant vertical bands or instability and
lack of detail in thin vertical lines) it may help to ask the system
to rerun the input signal analysis and set the best parameters
by calling up the automatic adjustment function with A on the
remote control or AUTO on the keypad.
If the automatic procedure fails to have the required effect,
enter the frequency and phase values manually and ap-
proach the screen sufficiently to observe the effects of the
adjustments.
OVERSCAN
Eliminates irregularities around the outer borders of the image.
Some less accurate sources may produce an image with un-
even borders; thanks to the overscan function these imperfec-
tions can be moved to outside the displayed area. Il
parameter to 2.2, typically yields pleasant, contrasty images.
Y/C DELAY
In the case of Video and S-Video signals, it may be necessary
to correct horizontal colour misalignment within the projected
image. For a given video standard (e.g. PAL or NTSC) the stored
value does not normally require further fine-tuning, unless the
source or connection cable has changed.
ST1 For general use
ST2
ST3
ST4
ST5
EN1 Suited to displaying images from videoca-
meras, digital cameras or TV studios in high
ambient light.
EN2 Suited to displaying images from videoca-
meras, digital cameras or TV studios in low
ambient light.
EN3 Suited to displaying cinematographic material
in high ambient.
EN4 Suited to displaying cinematographic material
in moderate ambient.
EN5 Suited to displaying cinematographic material
in controlled ambient light.
G1 Suited to displaying graphic images (e.g. Win-
dows desktop) in moderate ambient light.
G2 Suited to displaying graphic images in mode-
rate controlled light.
Table 5 - Gamma correction settings
Gamma functions
Standard
Gamma functions
Enhanced SIM2
Gamma
functions
Graphics
Values higher than 2.2 increase overall contrast, but reduce the
detail of dark areas. For the most common video sources, the
overscanning value can be in the range (no overscanning) to 32
(maximum). The resulting image always maintains the selected
aspect irrespective of the selected overscan value.
POSITION
Use this adjustment to position the image vertically and horizon-
tally. Determines the aspect ratio of the projected image.
Fig.25
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