JLCooper ES-450SP4 - Manual (Page 13)

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The default method is “CueUp” mode. In this mode, the ES-
450SP4 sends a Locate command that is incremented or
decremented by one frame. This works well for hard disk based
systems and newer decks.
The alternate method is “SloMo” mode. In this mode, the ES-
450SP4 sends a shuttle slow command in the appropriate direction.
The ES-450SP4 sends a STILL command when the device
responds with timecode that is incremented or decremented by one
frame. This is better suited for older decks that have trouble with
locating a short distance.
Note:
If the device does not use the timecode it sends out of the
remote connector as the locate reference, the device will
locate to the wrong point. An example of this would be a
device that sends VITC timecode to the remote, but uses
LTC to locate.
MARK IN and MARK OUT buttons send Mark In and Mark Out
commands to the device. These are used to set points used in
Preview and Autoedit operations.
The PREVIEW button sends a Preview command to the device.
This allows the operator to preview an edit. Typically, this
command causes the device to perform the following actions:
1. Locate to the Mark In point minus the pre roll
2. Enter Play mode
3. Switch to input monitor at the Mark In point
4. Revert to tape monitor at the Mark Out point
5. Stop the tape at the Mark Out point plus the post roll
The AUTOEDIT button sends an Auto Edit command. This allows
the operator to perform an edit with frame accuracy. Typically,
this command causes the device to perform the following actions:
1. Locate to the Mark In point minus the preroll