Tektronix Grass Valley 3000 - Manual (Page 95)

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Setting User Preferences
NOTE: The optional M/E Preview mezzanine board must be installed
in each M/E in order to select AUTO and LOOKAHEAD Preview Modes.
These selections will not be displayed in the menu if the board is not
installed.
The choice of the Preview Mode to be used depends primarily on
how many monitors you have per M/E and how you wish to use
them, as illustrated in
Figure 2-5 .
AUTO — Use this mode to automatically toggle between the
M/E PGM and PVW (next transition) outputs when a single
M/E monitor is used. The monitor displays the M/E PVW
output when the M/E is on air (high tally); it displays the M/
E PGM output when it is not on air (low tally).
LOOKAHEAD — Use to preview what is going on-air next.
Always shows the next transition of the selected M/E.
PGM — Use to display the PGM output of the M/E or the
PGM PST on the Preview monitor.
KEY PVW (Displayed only when PGM PST is selected) — Use
to preview DSK 1 and DSK 2 keys over the PGM PST
transition on the Preview Monitor.