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2-10 Chapter 2: Basic Operation
Model 801GC, 801GF & 801GX¥Rev. A
Sync Gate Buttons
The buttons in this group select the type of sync
signal that is used to synchronize the display. De-
pending on a particular format’s settings, more than
one type of sync can be selected by pressing two
buttons at a time.
• The ACS (Analog Composite Sync) push-but-
ton causes analog sync to be output on one or
more of the analog video outputs.
• The DCS (separate Digital Composite Sync)
push-button causes a separate digital compos-
ite sync signal (CS) to be output.
• The DSS (separate Digital Separate Sync) push-
button causes separate digital horizontal and
vertical sync signals to be output.
❖ A default sync type is automatically selected
whenever a new format is selected. Not all sync
types are available with all formats. For example,
digital video formats will not allow analog com-
posite sync to be selected. If a button will not
light up when pressed, then the corresponding
sync type is unavailable.
Re-depressing a sync gate button causes the selected
sync to be toggled either on or off. When toggled
off, no sync will be sent to the display and the dis-
play will be allowed to free-run.
❖ The individual settings are overridden (gated off)
whenever the master outputs button is turned
off.
Outputs Button
This is the master output signal control. When the
master output control is turned off, all of the signal
outputs of the generator are disabled.