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3. Picture adjustments INPUT GROUP Inputs 1-5
3.1.
Brightness, Contrast, Saturation, HUE
The adjustments for Brightness, Contrast, Saturation have similar impact as with monitors or TV-
sets. There is no real optimum setting. Perfect image balance is a matter of attached projector or
display and personal preferences.
HUE
is only available with NTSC-signals.
BRIGHTNESS
+ 6,2 %
3.2
Horizontal and Vertical Sharpness, Details
Horizontal or Vertical Sharpness is crossrelated to the
DETAILS
-setting.
SHARPNESS
defines the
degree of edge enhancement,
DETAILS
the type of enhancement.
DETAILS
may be changed from
COARSE, MEDIUM
to
FINE
. The vertical sharpness is a function of the comb filter which is only
active when composite inputs are used. When using Y/C or RGB/YUV inputs the
VERTICAL
SHARPNESS
adjustment has no impact on the image.
The best result using inputs 1-3 is achievable by increasing the detail resolution with
DETAILS
setting to
FINE
and
HORIZOTNAL SHARPNESS
to
STEP 1.
Input 4 + 5 may deliver good results even with higher values of
HORIZONTAL SHARPNESS
up to Step 5. The degree of edge enhancement is a matter of personal preference and quality of the
input source material.
HORIZ. SHARPNESS
STEP 1
3.3
Comb-Filter (only Input 1-3)
The comb filter is needed to remove cross color artifacts of the PAL,SECAM or NTSC encoding
process. It can be deactivated for demonstration purposes. An activated Comb filter never has a
negative impact so it should be ON all the time. The function is only available in the composite input
mode. The used type of comb filter meets broadcast standards and delivers outstanding
performance.
3.4
Input Mode
This setting activates the Y/C (S-VHS) input mode on inputs 1-3.
If input 4 or 5 is active the function provides toggling between RGBS, RGsB and YUV.
The MGVC 1280 addditionally offers adjustments of active Pixel per line, Phase and the manual
selection of VESA standard in case the automatic detection is not working properly.
3.5
Standard Select
Not all video standards can be detected automatically. If the image is black and white a manual
selection of input standard may be required, e.g. SECAM sources have to be selected and stored.
The necessity for a manual selection is usually indicated by a black and white image together with
heavy distortion of the displayed image. Simply step through the standards until the display shows
proper color images.
3.6
Color Phase
Color Phase adjusts the delay between LUMA and CHROMA signals. It works only for
Y/C and composite. Usually no adjustments are necessary but a colored halo effect around sharp
edges may be an indication for a delay and a necessary compensation.
3.7
NR DEMO and Noise Reduction
The MGVC 1280 offers a very effective digital noise filter. It removes noise of low quality signals like
VHS tapes or analog reception of broadcast signals.
In the highest mode STEP 5 the noise filter also works as a stabilizer giving great results for video
signals without any motion. Typical sources are dia scanners or visualizers.
