Panther PN-6730-UXP, Руководство пользователя

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3.4 Adjusting For a Good Picture
48
3.4.3 Adjustments for DVD and VCR
Video sources can be composite or S-Video. The composite (or C-Video) input and the S-Video input
have their own loop-thrus. (This section does NOT apply to computer sources.)
Adjusting the picture
1. Press either DVD or VCR on the remote.
2. Press
MENU
, select Input Levels, and press
ENTER
.
This opens the Video Controls menu. (If the
selected source is not C-Video or S-Video, the
LEVEL
button will not open the Video Controls
menu.)
3. Display an all-black picture from the video source.
This should come from the actual source that will
be used for program material, not from a test sig-
nal generator. (For DVD players, frame 50882 on
Reference Recordings, ‘A Video Standard’ test disk
has this picture.)
4. Select Brightness and adjust it with the +/– keys.
Make the R, G, and B values as close to 001 as
possible and keep the Brightness number as high
as possible.
a) If the initial Sample values are greater than
001, reduce the Brightness until the first Sam-
ple value reaches 001.
b) If the initial Sample values are 001, increase
the Brightness until all Sample values are 002
or greater. Stop increasing Brightness when the
last Sample value goes from 001 to 002.
c) If Brightness is decreased while the Sample val-
ues are at 001, the color range for the displayed
image will decrease.
5. Display an all-white image from the video source.
Frame 50823 on Reference Recordings, ‘A Video
Standard’ test disk has this picture.
6. Set the Sample values for R, G, and B as close to
254 as possible while keeping the Contrast num-
ber as low as possible.
a) If the initial Sample values are less than 254,
increase the Contrast until the first Sample
value reaches 254.
b) If the initial Sample values are 254, decrease
the Contrast until all Sample values are 253 or
less. Stop adjusting when the last Sample value
goes from 254 to 253.
c) If the Contrast is increased while the Sample
values are at 254, the color range for the image
will decrease.
7. Display a color bar pattern from the video source.
Frame 17177 is SMPTE Color Bars. Or use any
75% saturation color bar signal.
8. Select Blue Only on the Video Controls menu
and press
ENTER
. This will display only shades of
blue.
9. Adjust Saturation up or down until the two out-
side blue bars (which were white and blue) are the
same.
10. Adjust Hue up or down until the two inside blue
bars (which were cyan and magenta) are the same.
11. Set VCR Mode On, if the source is a video player
without time-base correction (most home VCRs
are this type).
12. Exit the menus with the
PREV
button.
Find Mode, the automatic mode detection process
(page 62) does not function for C-Video and S-Video
sources. Nor do any of the subparts of Auto Detect.