Specifications

More Proc Adjust (H Phase/Ofs)
Press this softkey to access controls for adjusting the horizontal position
of the active picture, as well as adjusting the DC offsets of the
chrominance components of the decoded input video.
Use H Phase to adjust the horizontal position of the active picture
relative to sync. This control has a range of +/– 1000 nanoseconds (+/–
1 microsecond).
Use U Offset and V Offset to adjust the DC offsets of the decoded B-Y
and R-Y components respectively. The range of these controls is +/– 50
percent.
NOTE: Do not use this pushknob as a substitute for system
timing adjustments at the source. It is intended only to
compensate for minor timing errors in a video system.
Key Input Setups
NOTE: This softkey appears only when you have selected
the key input of a Composite Video + Key Input module.
If a Composite Video + Key Input module is installed at the selected
input, Key Input Setups, Gain/Pedstl Offsets, and H Phase Offsets
softkeys replace the Setup Inputs and Input Bits softkeys. The Key Input
Setups softkey accesses pushknobs as described below.
Use the Input Number pushknob to select the physical input number.
This number corresponds with the input number on the Signal Chassis,
not the crosspoint button assignment. Odd numbered inputs on this
module are dedicated video inputs, while even numbered inputs are
dedicated key (i.e., monochrome or luminance only) inputs.
Use the Mode pushknob to select the format of the input key signal. If
the key signal contains sync and color burst, use the Comp setting, which
locks to the burst signal. If the key signal contains sync but no color burst,
use the NComp setting, which locks to horizontal sync. If the key signal
has no sync, use the Slave setting, which uses sync from the video input
to lock the key input.
NOTE: If the key input has no sync, make sure that it is
zero timed (+/– one microsecond) to its companion video
input. A timing discrepancy greater than this does not
allow the key input to be properly timed to the video input.
Engineering Menu 8150 Technical Guide
5-12
Engineering Setup
9100-0212-04 - May 2000