Barco 26-0702000-00 manual Menu Orientation, System Menu, FSN Series • User’s Guide • Rev

5. Menu Orientation

System Menu

~If the input is greater than ± one-half line from video reference, Frame Sync mode is automatically selected. The Sync Mode column in the table displays Auto: Frame Sync.

Important

If Frame Sync mode is selected automatically, the {Refresh Sync} button is enabled. See the “Input Sync Section” heading for details.

•Frame Sync — In this mode, the system synchronizes the selected input to the external video reference. One frame of delay is added to the input.

•Minimum Delay — In this mode, the selected input must be within ± one-half line for minimum delay to function properly. If the input video is outside this range, the video signal may tear or go to black — depending on how the Black on Invalid Video function is set. Refer to the “User Preferences Menu” section on

page 254 for details.

Important

Minimum Delay mode is recommended for system setup only. It is recommended that you use “Auto” mode during your production.

The table below summarizes the amount of delay incurred for a selected native input in each of the three sync modes:

Table 5-5.Input delay for selected sync modes
	Input Delay
	Input video is	Input video is
Sync Mode	≤ ± 1/2 line of reference	≥ ± 1/2 line of reference
Auto	Minimum delay	1 frame delay *
Frame Sync	1 frame delay	1 frame delay
Minimum Delay	Minimum delay	Invalid video behavior **

*Remember that in Auto mode, if the system switches to Frame Sync, the system stays in the mode. To return to Minimum Delay mode, press the {Refresh Sync} button. See below for details.

**Invalid video will either tear, or go to black, depending on how the Black on Invalid Video function is set on the User Preferences Menu. Refer to the “User Preferences Menu” section on page 254 for details.

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