Extron electronic DDS 402 manual Resolution and refresh rates submenu, Output Signal submenu

Resolution and refresh rates submenu

Rotate the Adjust knob while in this submenu to select one of the available output resolutions.

Rotate the Adjust knob while in this submenu to select one of the available refresh (vertical scanning) rates. Selecting Lock enables the Extron Accu-RATE Frame Lock™ (AFL™) feature. Accu-RATE Frame Lock eliminates image tearing and other artifacts of scaling motion video by eliminating frame rate conversion. It exactly matches the output rate of the DDS 402’s scaler to the frame rate of the selected input. Select this feature if you will be using motion video sources with a display that is capable of a variety of refresh rates.

The default resolution and refresh rate is 640 x 480 @ 60 Hz.

Resolution		50 Hz	56 Hz	60 Hz	75 Hz	85 Hz	Lock at 50/60 Hz*
640 x 480		X		X	X		X
800 x 600		X		X	X		X
832 x 624				X	X		X
848 x 480				X			X
852 x 480				X			X
1024 x 768		X		X	X	X	X
1280 x 768			X				X
1280 x 1024		X		X			X
1360 x 765				X			X
1365 x 1024				X			X
1400 x 1050		X		X			X
576p		X					X
720p	HDTV @ 60 Hz only			X			X
1080p	HDTV @ 60 Hz only			X			X
1080i		X		X			X

* The output rate is auto-selected, based on the input.

Output Signal submenu

Rotate the either Adjust or the Adjust knob counter clockwise while in this submenu to select RGB video. Rotate the knob clockwise to select component (Y, R-Y, B-Y) video for output.

Sync Polarity submenu

The display or projector may require a particular combination of horizontal (H) and vertical (V) sync signal polarities. Select the appropriate combination of positive or negative H and V sync by rotating either the Adjust or the Adjust knob.

Digital Display Scaler • Operation 3-7