Extron electronic user manual What is the VSC 100?, Features, Output Formats

Introduction to the VSC 100 • Chapter 1

What is the VSC 100?

The Extron VSC 100 is a high resolution computer to video scan converter. It can convert computer scan rates up to 1152 x 900 either from a Mac or a VGA (PC) source to NTSC/PAL, S-video and RGB outputs. The VSC 100 is installed between the computer and the desired display or output device (LCD or CRT projector, VCR or compatible video display or recording device).

Features

The VSC 100 is designed for easy installation. The video input uses a “loop out” design, together with a single VGA-to-Mac adapter cable. Regardless if the application uses a VGA or a Mac video source, the VSC 100 allows the local monitor to be used. Connect the adapter cable one way for Mac and the other way for VGA. Connector type and gender prevent any mistakes. Installation procedures are in chapter 2.

									VSC 100
								SCAN CONVERTER
			CENTERING/PAN		FILTERING
		FREEZE			HORZ	VERT			S-VIDEO SIGNAL
				ZOOM	I	I			LOCK
				OVER		I I
				UNDER	I I	I I I
				MIN MAX					RGB
100-240V	0.9A	INPUTS
50/60 Hz
			SPARE OUTHV	OUTPAL OHM75		OUTPUTS
		MAC
		VGA		COMPOSITE S-VIDEO	R	G	B	H/HV	V

Figure 1-1. VSC 100 front and rear panels

The front panel above includes the features listed below. Detailed panel operation is in chapter 3.

•Freeze mode allows the output device to capture the image.

•Vertical and horizontal centering (V-shift and H-shift) also double as pan controls when in the Zoom mode. When a maximum or minimum limit has been reached, the appropriate LED blinks.

•Three view modes are selectable from the front panel, including Zoom (200%), Overscan and Underscan.

•Nonvolatile memory locations save centering position settings.

•There are two front panel switch selections for horizontal filtering to minimize the loss of picture detail.

•Vertical filtering has three switch positions to eliminate flicker on the output image.

Output Formats

Four video formats are available on the VSC 100. Appropriate rear panel connectors are provided for each type of output.

Chapter 1 • Introduction to the VSC 100

•Composite video – This output is always available, in addition to one of the other output choices. NTSC or PAL is selected by a rear panel DIP switch.

•S-video – A 4-pin mini-DIN connector provides output for S-video or Hi-8 style video. This is the highest quality recordable video output from the VSC 100 to an S-video VCR. The S-video output is selectable from the front panel.

•RGBS – Use 4 of the BNC output connectors to provide red, green, blue and composite sync. This RGBS video output is selected through a front panel toggle switch and a rear panel DIP switch.

•RGBHV – Use 5 BNC output connectors to provide red, green, blue, and separate horizontal and vertical sync. A front panel switch selects RGB and a rear panel DIP switch selects “HV Out”.

Specifications

Video input

Number/type	1 VGA, 1 Mac analog RGBHV, RGBS, RGsB
Connectors	VGA	15-pin female HD
	Mac	15-pin female D
Minimum/maximum levels	Analog	0V to 2V p-p with no offset at
		unity gain
Impedance	High Z or 75 ohms (DIP switch-selectable)
Horizontal frequency	Autoscan 24 kHz to 70 kHz
Vertical frequency	Autoscan 50 Hz to 120 Hz
Resolution range	Autoscan 560 x 384 to 1280 x 1024
	Note: 1280 x 1024 is available at 60 Hz only.

Video processing

Encoder	10 bit digital
Digital sampling	24 bit, 8 bits per color; 40 MHz
Colors	16.8 million
Horizontal filtering	2 levels
Vertical filtering	3 levels selectable per each view mode

Video output

Number/signal type	1 RGBHV/RGBS	15.75 kHz analog, or
	1 S-video	NTSC, 15.75 kHz,
		525 lines , or PAL,
		15.5 kHz, 625 lines
	1 composite video ....	NTSC, 15.75 kHz,
		525 lines , or PAL,
		15.5 kHz, 625 lines
Connectors	RGBS/RGBHV	4 or 5 female BNC
	S-video	1 female 4-pin mini-DIN
	NTSC/PAL composite video ... 1 female BNC

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