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Source Set Up
8-3
5975338 BARCOVISION 9200 210497
During the installation of a file with LOAD, the horizontal period, the
total number of vertical lines and the interlaced mode are automati-
cally measured and filled in in the menu table. These values will be
available when starting up the EDIT procedure of an active file.
Select first
"Horizontal"
and press ENTER to display a full image.
If the value for
"Horizontal total pixels"
is wrong, sampling mistakes
(small vertical bars in the projected image) will be seen in the image.
EDIT FILE (Horizontal)
Total :
865 pixels
Active :
675 pixels
Shift :
116 pixels
Period :
63.7 µS
862
Select "Total" and adjust the pixel quantity. Adjust for zero bars (hint
: if the number of bars increase, adjust in the other way).
The active pixels : determine the width of the window on the screen.
This value is normally given in the source specifications. If not, adjust
until full image is displayed (no missing pixels).
Horizontal shift : to shift the image on the screen.
Horizontal period : already filled in with the correct value when active
file.
Press
EXIT to return to the normal Edit file menu.
Select
"Vertical"
by pushing the control disk up or down and press
ENTER. The full image is displayed.
The
"Vertical Total lines"
are already filled when an active file is
selected to be edited.
The
"Active lines"
: number of horizontal lines determining the height
of the projected image. This value is normally given in the specifica-
tion of the source. If not, adjust until full image height is displayed (no
missing lines)
Vertical shift
: shift the image up and down (push control disk up or
down) on the screen until the correct image position is obtained.
Interlaced [On] or [Off]
: this selection is automatically filled when
active file has to be edited. If the image is wrong due to
mismeasurement, use the ENTER key to toggle between [On] and
[Off]. (for interlaced images, 1 frame contains 2 fields).
Read AMDS
AMDS = automatic mode detection & synchronisation
During the installation of a file with LOAD, the system measured
automatically the horizontal period, the total vertical lines and the
interlaced mode.
When selecting Read AMDS, the system remeasures the above
indicated items.
Options
Source number
: The source number of a non-active source can be
changed to any other source number. This makes it possible to
create already a file for future source numbers.
Clamping
: the clamping determines the black level of the signal.
default setting : arrow up 1
Arrow up : trailing edge of the sync pulse to start the clamp pulse.
Arrow down : leading edge of the sync pulse to start the clamp pulse
1 : narrow clamp pulse
2 : wide clamp pulse
Field polarity inverted
: default [No]
This function is used for interlaced images. Both rasters of the image
could be shifted in a wrong way (double lines are visible in the image).
This can be corrected by inverting the field polarity to [yes].
EDIT FILE (Horizontal)
Total :
865 pixels
Active :
675 pixels
Shift :
116 pixels
Period :
63.7 µS
863
EDIT FILE (Vertical field)
Total :
312 lines
Active :
278 lines
Shift :
+15 lines
Interlaced :
[On]
864
EDIT FILE OPTIONS
Source number 1
Clamping [ 1]
Field polarity inverted [no]
Vertical refresh [sync]
Vertical sync polarity
[ ]
858