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6 Chapter 1 Getting Started
R, G, B Video Gate keys
The Video Gate keys activate (turn on) or deactivate (turn off) individual color elements
when the generator is in normal operating mode. They also control the addition of primary
color information to the NTSC / PAL video outputs on the generator. The following table
shows the function of the Video Gate keys, and commands for controlling the key function.
The master Outputs key overrides the settings of these keys when turned off.
ACS, DCS, and DSS Sync Gate keys
The Sync Gate keys are used to activate (turn on) or deactivate (turn off) sync signals
when the generator is in normal operating mode. With some formats, more than one type
of sync can be selected by pressing two keys together.
The generator selects a default sync type whenever you select a new format. Not all sync
types are available with all formats. For example, digital video formats will not allow analog
composite sync to be selected. If a key will not illuminate when pressed, then the
corresponding sync type is unavailable. Repeatedly pressing a sync gate key causes the
selected sync to be toggled on and off. When toggled off, no sync will be sent to the
display.
The master Outputs key overrides the settings of these keys when turned off.
Key Function Command
R Turns all of the red video outputs on and off. REDG
G Turns all of the green video outputs on and off.
When a 2-bit digital monochrome (MDA) signal is
being generated, the G key turns the I (intensity)
signal of the video pair on and off. GRNG
B Turns all of the blue video outputs on and off.
When a 1 or 2- bit digital monochrome signal is
being generated, the B key turns the V (video) sig-
nal on and off. BLUG
Key Function Command
ACS Outputs analog composite sync on one or more of
the analog video outputs. SSST 3; ALLU
DCS Outputs digital composite sync signal. SSST 2; ALLU
DSS Outputs separate digital horizontal and vertical
sync signals. SSST 1; ALLU