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7. Random Access
Do not adjust these settings on an ac tive file, they are used to identify the input s ource f ile.
How to find the correct values for the item in the Edit file menu?
Horizontal Total P ixels If the value for "Horizontal Total Pixels" is wrong, s ampling mistakes (small vertical bars in the
projected image) will be seen in the image.
Select "Total" and adjust the pixel quantity. Adjust for zero ba rs.
hint: if the number of bars increase, adjust in the other direction.
Active Pixels The "Active Pixels" : determine the width of the window on the screen. T his value is normally given in
the source specifications. If not, adjust until full image is displayed (no m issing pixels).
Horizontal Start number of pixe ls between the beginning of the input signal and the start of the video information in
the signal.
Horizontal Period already filled in with t he correct value when ac tive file.
Vertical Total Lines already filled when an active file is selected to be edited
Active Lines number of horizontal lines determining the height of the projected image. This value is normally given
in the specification of the source. If not, adjust until full image height is displayed (no missing lines)
Vertical Start number of lines between the start of the input signal and start of the image on the screen.
Interlaced [On] or [Off] this selection is automatically filled when active file has to be edited. If the image is wr ong due to
mismeasurement, use the ENTER key to toggle between [On] and [Off]. (for interlaced ima ges,
1 frame contains 2 fields).
Read A MD S AM DS = automatic mode detection & synchronization
During the installation of a file with LOAD, the system autom atical
ly measured the horizontal per iod,
the total vertical lines and the interlaced mode. When selecting Read AMDS , the system rem easures
the above indicated items.
How to install the correct s ettings for the options in the Edit file menu.
EDIT FILE OPTIONS
Source number 1
Clamo position [leading]
Clamp delay 0
Clamp width 10
Field polarity [pos]
Field select [both]
Vertical refresh [sync]
Vertical sync polarity [leading]
Select with
↑
or
↓
<ENTER> to toggle
↑
or
↓
to change value
<EXIT> to return.
Menu 7-10
Source numb er The source number of a non- active source can be changed to any other source number. This makes
it possible to create a file for future source numbers.
Clamp pos ition Clamping determ ines the black level of the signal. The clamp pulse c an be related to the leading or
the trailing edge of the sync pulse. Use the ENTER key to toggle between [leading] and [trailing].
Clamp delay The time between the leading edge of the clamp pulse and the locked edge of the sync pulse. Can be
any value between 0 and 255. Change the value by pushing the cursor key ↑ or ↓.
Clamp width The width of the clamp pulse can be any value between 0 and 255. Change the value by pushing
the cursor key ↑ or ↓.
46 R5976182 BARCOREA LITY 6500 30012001