Extron electronic DVS 304 AD, DVS 304 D manual Start auto image, Input configuration

Installation and Operation, cont’d

Start auto image

Auto imaging allows you to “auto size” and “auto center” the selected image to fill the screen. The processor measures the sync frequencies of an incoming video source and uses an internal table to set the active image area, total image area, and the sampling frequency.

If an unknown input is connected to the DVS 304, the processor measures and estimates the resolution of the incoming video.

To turn on this feature, select the Advanced Config menu and choose “On”.

Start auto imaging on a selected input by pressing “Next” after the Start Auto Image menu.

Default Cycle

2 sec.

INPUT 1	2 sec.	OUTPUT	MENU
COMPOSITE		1024 x 768@60
			NEXT

START AUTO IMAGE ON IN1

PRESS NEXT TO START

NEXT

Figure 2-10 — Start auto image menu

NAn input with a vertical refresh rate less than 40 Hz will have to 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 (e.g. 720p 29.9 Hz) is applied and an Auto Image command is issued, the DVS 304 will refer to default values instead of performing a true Auto Image.

Input configuration

The following flowchart provides an overview of the Input Configuration submenus and the options for each setting.

START AUTO
IMAGE ON IN1
MENU
INPUT	NEXT
CONFIG

Input 1 can only accept composite video. Input 3 can only accept S-video. Only Inputs 2 and 4 can be configured for different video types, although an SDI input can be assigned to any input.

INPUT 2

YUVi

Select video format

•Composite

•S-video

•YUVi

•YUVp

•YUV Auto

			Displays only when applicable		Displays only when applicable
NEXT	INPUT 4	NEXT	SDI INPUT	NEXT	SDI DE-INTER	NEXT	ASPECT RATIO	NEXT
	RGB SCALED		<*> 1 2 3 4		FIELD STNDRD		4x3
	Select video format		Assign SDI to Input #				Aspect ratio options
	• Composite		• 1, 2, 3, 4, * (none)				• 4 x 3

•	S-video	N The SDI input signal can be	NSDI De-interlacing options:		• 16 x 9
•	RGBcvS	assigned to any input. Once	•	Field Standard
• YUVi		assigned to a specific input,	•	Field Flip
• YUVp		only an SDI signal can be
•	RGB scaled	accepted on that input. SDI
• RGB pass		can be disabled by
•	Auto detect	selecting the *.

Displays only when applicable

Displays only when applicable

NEXT

FILM MODE	NEXT	H ACTIVE V		NEXT	H START	V	NEXT	TTLPIX PHASE
<OFF> ON		XXX	XXX		50	33		XXXX	08
									For YUVp or RGB input only
Film mode		Horizontal	Vertical active		Horizontal start	Vertical start		Total pixels	Pixel phase
Turn On or Off for low		active pixels	lines		Select for the	Select for the		Specify the	Adjust the pixel
resolution devices.		Specify the	Specify the		left edge of the	top edge of the		width in pixels of	sampling point
Not for use with		width in pixels	height in lines of		active video.	active video.		the total image	for a selected
		of the active	the active image					area sampled.	input.
YUVp or RGB
		image area	area sampled.
inputs.
		sampled.

Figure 2-11— Input Configuration menus

2-12 DVS 304 • Installation and Operation