Chop; Clear; Clear Preset - GRASS VALLEY NV9000 User Manual

Operation
Buttons
Thereafter, pressing a category button appends the suffix represented by the button to the
device name. When you have constructed the device name of choice, you simply stop
pressing suffix buttons.
A category button operates in source mode or destination mode. In source mode, it selects
a source category or a suffix for the source category. In destination mode, it selects a
destination category or a suffix for the destination category.
When the panel is in source mode, category buttons that are not configured with a source
category become disabled. When the panel is in destination mode, category buttons that
are not configured with a destination category become disabled. Category buttons
configured with both source and destination categories are not disabled in either mode.
Category buttons that have only a suffix configured are disabled until a category becomes
selected.
There are fixed and optional category buttons. The fixed category buttons form a keypad
within the array of function buttons:
The keypad is also used under menu mode and under setup mode.

You cannot perform a name set change using a 'Nameset Toggle' button while a cate-
gory selection is in progress.

Chop

When a "chop" function is supported by a router, the button is a toggle that enables and
disables "chop. " Chop is a rapid switching of the selected destination device between the
current source and the preset source.
The chop function is used to test system timing and would not be used during normal
operation.
The default button text is "Chop" but a chop button can have any legend.
Select a preset source and press 'Chop' to start the chop function. Press 'Chop' again to stop
the chop function.

Clear

The 'Clear' button reverts the panel to the most recent preset. (It does not cause any
changes to the routers, control system, or its signals.)
You may think of this as a "backspace" or "cancel" key. During category/suffix device
selection, it erases the suffixes you entered in reverse order.
(If you are in level mode or in salvo mode, 'Clear' brings you back to normal mode.)

Clear Preset

The 'Clear Preset' button removes the preset source from a pending take. (It does not cause
any changes to the routers, control system, or its signals.)
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