Accom ASWR8150, Техническое руководство

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NOTE: These pushknob adjustments should not replace
output level adjustments at the source. They are intended
only to compensate for minor non-unity gains in a video
system.
H Phase Offsets
This softkey accesses the H Phase pushknob, which lets you make minor
corrections to the horizontal picture position. The default is 0.00, set at
the factory for no horizontal shift. A negative offset shifts the active
picture to the left, and a positive offset shifts the active picture to the
right.
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.
Composite Input Setups
NOTE: This softkey appears only when you have selected
the video input of a Composite Video + Key Input module.
If a Composite Video + Key Input module is installed at the selected
input,
Composite Input Setups, Gain/Pedstl Offsets, and H Phase
Offsets softkeys replace the Setup Inputs and Input Bits softkeys. The
Composite 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.
NOTE: Composite video inputs must contain color burst
in order for the decoder to lock to the input correctly. The
video input does not support signals without color burst.
The Key input, however, can process monochrome signals
with or without color burst.
The Adaption pushknob selects the mode for decoding the composite
analog signal into component digital video.
Adapt Vid – This is the default setting. It is an adaptive combination
of Notch and Comb modes (see below) that has a high noise threshold.
Use this setting for video that comes from cameras, analog VTRs, or
other sources that maybe noisy. In NTSC systems, the effect of this
Engineering Menu 8150 Technical Guide
5-10
Engineering Setup
9100-0212-04 - May 2000