Accom ASWR8150, Technical Manual

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all 8150s), some outputs may have no vertical delay, but the
Horizontal Phase control still affects all outputs.
Key Mode
Press this softkey to select the type of signal for the Preview, Aux 2, and
Aux 4 outputs. Because of the way that the 8150’s M/E and DSK
processors perform key compositing, the gain and offset of all key
signals are changed internally. This rescaled key signal is also copied to
the chrominance samples of the key path, so that the chrominance
samples of the fill signal and background video are keyed correctly. This
Key Mode control removes the chrominance key samples and rescales
the gain and offset of the key signal so that it is correct for external
viewing or use.
NOTE: The analog monitor output of the original Output
module (8100s only) is not affected by this control.
The settings are as follows:
Auto – Automatically selects one of the following settings according
to whether the source routed to that output is a video signal or a
key/mask/wipe signal.
Video – Passes the selected source without modification.
Key w/o Border – Removes the chrominance from the signal and
rescales the luminance for use as an external key signal, minus any
border that the 8150 has applied to it.
Key w/ Border – Removes the chrominance from the signal and
rescales the luminance for use as an external key signal, including any
border that the 8150 has applied to it.
8150 Technical Guide Engineering Menu
9100-0212-04 - May 2000
Engineering Setup
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