Auto-Image

When enabled and a new input frequency is detected, the DVS first applies an existing Auto Memory for the signal (if Auto Memory is enabled), or if no entry exists, performs an automatic Auto-Image on the new signal.

With Auto Image disabled, the DVS 304 will apply default values to a new input if no Auto Memory exists (if Auto Memory is enabled). Default is Off.

See the table on page 21 for a full description of the interaction between the Auto-Image and Auto Memory settings.

NOTE: An input with a vertical refresh rate less than 40 Hz must be manually centered

and sized using H/V Start and H/V Active under the Input Config menu. When

a rate with a low vertical refresh rate (for example 720p 29.9 Hz) is applied and an Auto Image command is issued, the DVS 304 refers to the default values

instead of performing a true Auto-Image.

Blue mode

The Blue mode assists the user in setting up a scaler’s color and tint level. To use this feature, set this submenu to “On” so that only sync and blue video signals will be passed to the display.

Use either the Adjust horizontal ([) or Adjust vertical ({) knob to select this mode. The default state is “Off”.

NOTE: The Blue mode has no effect for RGB pass-through mode on Input 4.

Auto switch mode

The Auto switch mode causes the highest numbered input having a signal present to be automatically selected. For example, if both inputs 1 and 3 have active input signals, input 3 will be selected.

From this submenu, use either the Adjust horizontal ([) or Adjust vertical ({) knob to specify this mode as “On” or “Off.” The default is “Off.”

NOTE: The Auto switch mode ignores the presence of an SDI input signal, so any input that is assigned an active SDI signal will not be selected.

RGB delay

The RGB delay feature applies a brief delay before displaying a new picture to a screen and allows the display device to adjust to the new sync timing. This feature provides “no-glitch” switching. The blanking period can be set from 0 to 5 seconds in 0.5 second steps.

DVS 304 Series • Operation

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Extron electronic DVS 304 manual Auto-Image, Blue mode, Auto switch mode, RGB delay