Extron electronic User Guide for Extron DSC 301 HD Video Scaling Operations

Screen Saver and Timeout — Select the screen saver to mute the video output when no active video is detected. The screen saver can be set to a black (default) or a blue background for a specific (time-out) duration, before the output sync is disabled. The time-out duration can be set to Never (default), or to any duration from 1-500 seconds.

The screen saver option allows connected display devices to go into a low power standby mode when the DSC 301 HD has no active input.

Input x: Auto-Image— Select this to turn the per-input Auto-Imaging mode on or off. Auto-Image automatically attempts to size and position the image to Fill (or Follow the native aspect ratio of the input) the screen every time a new input signal is detected.

When enabled, Auto Image mode is activated by switching physical inputs on the DSC (e.g. IN2 to IN3), or by any interruption in input sync, even if the same input resolution is detected (e.g. disconnecting and reconnecting the same input), or by a power cycle.

Input x: Aspect Ratio — Select this to set the per-input Aspect Ratio to FILL (fills the entire output raster) or to FOLLOW (follows the native aspect ratio of the input).

When in Fill mode, if an Aspect Ratio adjustment for a single input rate is desired, the correct size and center can be manually set up under Picture Controls (Image Size and Position).

When in the Follow mode, each input rate will be displayed with its native aspect ratio (4:3, 5:4, 15:9, 16:9, 16:10) with the correct letter box or pillar box settings visible under the Image Size and Center Picture Controls.

Input x: Auto Memory — Select this to turn the per-input Auto Memory on or off.

The DSC 301 HD has 32 Auto Memory locations per input, for RGB/YUV and HDMI inputs. YUV and RGB signals on the same input have unique Auto Memories; for example 720p YUV and 720p RGB are stored with unique Auto Memory settings.

Auto memory locations store the same Input Config and Picture Control values as an Input Preset, except for Input Type, Preset Name, Film Mode, or Audio Gain/Att.

Overscan — Select this to set the overscan mode (0%, 2.5% or 5.0%) per input type.

This zooms and crops SMPTE inputs to mask edge effects and ancillary data that are common in broadcast signals. Issuing an Auto‑Image with overscan enabled, runs an Auto Phase routine (YUV and RGB only) and centers and sizes the input according to table values.

NOTE:	Overscan is valid only on SMPTE input rates (NTSC, PAL, SECAM, 480p,
576p, 720p, 1080i, or 1080p, or 2k).

Auto Switch — Select this to turn the Auto Switch mode on or off, and to set the priority.

The Auto Switch setting allows for basic, unmanaged, input switching based on the presence of active input signals. Auto Switch mode options are:

•disabled (off)

•setting priority to “high to low” (input 3 to input 1)

•setting priority to “low to high” (input 1 to input 3).

Factory Reset — This resets the device back to factory defaults (retains current firmware).

NOTE:	“FACTORY RESET” is displayed on the OSD for 1 minute after the reset to
allow time for the display device to sync with the DSC 301 HD output.

To reset the DSC 301 HD to factory setting, including original shipped firmware, press and hold the Enter button for 20 seconds while applying power. The message “FIRMWARE RESET” is displayed on the OSD to indicate the reset is completed.

When a FIRMWARE RESET is applied, the loaded current firmware is deleted and only the factory firmware remains on the device.

DSC 301 HD • Operation 16