Extron electronic RGB 202 Rxi VTG user manual Rear Panel, Interface/VTG selection switch

Installation and Operation, cont’d

6202 (interface)/VTG selection switch

(RGB 202 Rxi VTG only) — Use this switch to select the output signal’s source

202= The image from the interface (from input 1 or input 2) will be displayed.

VTG = A test pattern generated by the VTG (video test generator) will be displayed.

When this switch is set to VTG, signals from input1 and input 2 are ignored; the interface’s internal VTG provides a test pattern in place of the computer video input. Input selection (selection of input 1 or input 2) cannot be performed until the 202/VTG selection switch is set to 202.

7LCD display — This backlit LCD shows the horizontal and vertical scanning frequencies. While centering adjustments are being made, the LCD displays H-SHIFT or V-SHIFT, and it indicates the horizontal or vertical shift minimum or maximum limit when a centering limit has been reached. If DDSP is on and the horizontal or vertical centering control is rotated, the LCD displays N/A DDSP ON.

While the VTG is active (RGB 202 Rxi VTG only), the LCD displays the current format, resolution and scan rate settings. See the “LCD Display” section for details.

The backlight turns on at power-up, and it remains on for

15 seconds if a signal is not present at the selected input. If a signal is present, the backlight will remain on at all times. However, if the rear panel No Backlight DIP switch is set to On, the backlight will turn on for only three seconds at power-up, then it will remain dark even when an active signal is present.

8Input selection switch and LEDs — Use this toggle switch to select between input 1 and input 2. The LED corresponding to the selected input lights, and the switch returns to the center position automatically.

A remote contact closure switch, a computer, or an RS-232 control system connected via the rear panel 9-pin D port can be used instead of this switch.

Rear Panel

The features described in this section apply to both models.

100-240 0.2A 1 REMOTE

				DDSP SOG SERR NEGSYNC SYNCV WIDTH	OHM75 1 OHM75 2 NOBACKLIGHT	R	G	B
		2	INPUT
	ANALOG		AUDIO
						H	V	S
MBC

	POWER	ANALOG	1		2
	OUTPUT		INPUTS			OUTPUTS
50/60 Hz	9VDC
1	2	3		4	5	6	7	8

1AC power connector — Connect a standard IEC AC power cord here for power input (100VAC to 240VAC, 50/60 Hz) to the internal, autoswitching power supply.

2MBC power connectors — These 2.5 mm mini jacks supply 9VDC power for buffered monitor breakout cables (MBCs). Connect the MBCs’ power plugs here.

3Analog computer-video inputs 1 (top) and 2 (bottom) — Connect the source computers to these 9-pin D male connectors. Adapters and monitor breakout cables are available from Extron for use with SGI, Sun, and Macintosh computers.

4Audio inputs 1 and 2 — Connect audio cables from the source computers to these 3.5mm mini stereo jacks for unbalanced audio input. See “Cabling” in this chapter for a wiring diagram.

5DIP switches — This bank of DIP switches controls DDSP (Digital Display Sync Processing), SOG (sync on green) output, serration pulse output, sync polarity, vertical sync width, video termination (high Z/75 ohm), and backlight illumination.

The default for all DIP switches is Off (down).

1 — DDSP (Digital Display Sync Processing)

This feature may be necessary for digital display devices such as LCD, DLP (digital light processing) and plasma displays. Use this option if the image is not displayed properly after other options, such as serration pulse and video termination changes, have been explored.

On — The interface uses DDSP instead of ADSP.

DDSP does not process the sync signal.

DDSP disables horizontal and vertical centering controls.

Off — The interface performs sync processing operations, such as centering, with ADSP.

2-8 RGB 202 Rxi, RGB 202 Rxi VTG • Installation and Operation RGB 202 Rxi, RGB 202 Rxi VTG • Installation and Operation 2-9