Crystal Vision
Using the front control panel
20
DEC101SUser ManualV1.0 05/11/03
Adjusting horizontal and vertical timing
Increasing the vertical position setting will delay the output relative to the reference in
increments of one video line. Press the 'F1' button to allow the shaft encoder to adjust the
vertical output timing. The shaft encoder LED will illuminate and an asterisk will appear
on the display next to 'VPOS'. The range of adjustment is one video frame. When the
maximum adjustment is reached the value wraps around to zero.
Increasing the horizontal position setting will delay the output relative to the reference in
increments of 37ns. Press the 'F2' button to allow the shaft encoder to adjust the
horizontal output timing. The shaft encoder LED will illuminate and an asterisk will
appear on the display next to 'HPOS'. The range of adjustment is one video line.
With an external analogue timing reference present the delay through the board depends
on these adjustments and the relative timing of the serial input and the analogue reference.
When both horizontal and vertical position settings are zero the delay thorough the board
will be minimum and the serial output will be timed to the analogue reference as per ITU-
R BT.601.
Recalling defaults
There is no 'CAL' function for the timing adjustments. Defaults may be restored from
Statesman. See also 'Restoring factory defaults' in the Card-edge operation section.