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CVD 7176
1723 West 4
th
Street / Tempe, AZ 85281
phone (480) 966-2221 / fax (480) 966-6728
toll free (800) 638-6104
internet: www.covid.com
©2002 Covid, Inc. All Rights Reserved.
CVD 7176

Scan Converter

Users Manual
DISCLAIMER

The information contained in this docu-
ment is subject to change without
notice.

Covid, Inc. makes no warranty of any
kind with regard to this material.

This document contains proprietary in-
formation that is protected by copy-
right. All rights are reserved. No part of
this document may be reproduced or
distributed in any form or by any
means without prior written consent of
Covid, Inc.
CVD 7176


Scan Converter



A Simple Solution for Converting a VGA
Source to a Television Signal

Contents

Introduction 2

Panel Descriptions 3
Front Panel 3
Rear Panel 4

Typical Configuration 5

Modes of Operation 6

Suggested Uses for the CVD 7176 6

Operational Setup 7
Connecting to a PC or MAC 8
Connecting to a Television 10
Connecting to a Television Using an
RF Modulator 12
Connecting to a VCR 13
Connecting to a VCR Using an
RF Modulator 14

On Screen Display 15

Troubleshooting Tips 16

General Specifications 18

1 Introduction

The CVD 7176 converts the video output from your com-
puter into video that can be displayed on a television or
recorded to a VCR. CVD 7176 automatically detects
VGA and SGVA output frequencies up to 72 Hz and syn-
chronizes it with your television. The result is a high
quality, flicker-free television display from your computer.


The CVD 7176 includes the following features:
Screen position controls
Easy plug-and-play installation for both Windows 95
and higher, and MacOS platforms
Compatibility with any size television monitor (NTSC/
PAL) with an RCA (composite) or S-Video input con-
nector.
Support for both 640 x 480 (VGA) and 800 x 600
resolution (SVGA)
Support for 24-bit color
2x image zoom with pan control
TrueScale image compression that precisely fits the
image on your television without dropping lines or al-
tering video resolution
Monitor pass-through cable, reducing the number of
cables necessary for installation
Kensington Microsaver Lock Port

2 General Specifications

CVD 7176 SCAN CONVERTER

INPUT:
Signal: Analog RGBHV
Connectors: (1) HD-15 Female
Video Impedance: 75 Ohms
Video Level: 0.7 1.0 Vpp
Sync Level: TTL
Sync Polarity: + / -

OUTPUT:
Signal: VGA, Composite, S-Video
Connectors: (1) Phono Female (RCA Jack)
(1) 4-pin mini-DIN Female
Video Impedance: 75 Ohms
Video Level: 1.0 Vpp

RESOLUTION:
Maximum: 1024 x 768
Recommended: 800 x 600
Horizontal Scan Rate: 24 KHz to 80 KHz
Syncs: TTL, Separate H & V

CONTROL:
Front Panel Keypad

DISPLAYS:
On Screen Display Menu

PHYSICAL SPECIFICATIONS

DIMENSIONS: 1U High, 1/2 Rack Wide
(in) 1.75 H x 8.50 W x 6.00 D
(cm) 4.45 H x 21.59 W x 15.24 D

ENCLOSURE: Aluminum, Black, Texture Finish
WEIGHT:
Net: 1.2 lbs. / 0.54 kg
POWER:
Input: 110 or 120 VAC Wall Mount,
9 VDC, 1.2A, UL
18
Panel Descriptions








FRONT PANEL LAYOUT
FRONT PANEL

1. LED INDICATORS: The LED indicators show if the
unit is powered, in freeze mode, in compression
mode, or in zoom mode.

2. KEYPAD CONTROL: Keys control the On Screen
Display menu.


3 Panel Descriptions







CVD 7176 REAR PANEL LAYOUT
REAR PANEL

1. S-VIDEO OUTPUT: One 4-Pin Mini-DIN Female connector
provided to connect to video display.

2. COMPOSITE OUTPUT: One Phono (RCA) Female connec-
tor provided to connect to a video display.

3. INPUT: One HD-15 Female connector provided to connect
to the computer video source.

4. PAL/NTSC SWITCH: This switch selects the formats for
NTSC or PAL standard video.

5. DC IN: Power input accepts 9 VDC from the wall mount
power supply cube.





4
Flicker, or other distortion on
your screen Use of an RF modulator may
cause image quality prob-
lems. If at all possible, avoid
those devices that convert
the CVD 7176 signal into an
antenna signal.
Colors are poor quality or non-
existent Adjust the color and contrast
controls on your TV Adjust the brightness control
of the CVD 7176 Use of an RF modulator may
cause image quality prob-
lems. If at all possible, avoid
those devices that convert
the CVD 7176 signal into an
antenna signal
TV Image overshoots or fails
to till the screen Use the on-screen control to
adjust size and positioning. Adjust the vertical and hori-
zontal size controls on your
TV.
Red power LED does not light Check power connections Possible power supply or
CVD 7176 failure.

CVD 7176 failure Inspect the CVD 7176 unit
externally for signs of dam-
age (I.e. broken pins, sev-
ered wires, ets.). Do not
open the metal chassis for
safety reasons and to main-
tain the products warranty.
17 Problem
Possible Causes
No video from the CVD 7176 Check the connection from the
computers video output port to
the monitor in port at the rear
of the CVD 7176 unit. Check the connection from the
comp video out port or S-Video
out port to the input on your
monitor or VCR. Ensure that the TV or VCR is
on. Check the connection from the
power supply. Is the unit
plugged in? Is the red power
LED ON? Ensure that your television or
VCR has been configured to
accept auxiliary video input. Ensure that the unit is con-
nected to the appropriate video
connector on your TV or VCR.
At the TV or VCR end, the ca-
ble should be connected to the
VIDEO, VIDEO IN, or AUX
port.
Picture Rolls Ensure that your secondary
monitor and computer monitor
size are supported by the CVD
7176 Check and adjust vertical hold
and horizontal hold controls on
your TV/Monitor
Troubleshooting Tips
16
Typical Configuration
TELEVISION MONITOR
TABLE TOP PROJECTOR
5
PC
BREAK-OUT CABLE

COMPUTER MONITOR Modes of Operation
The CVD 7176 has ability to operate in three separate modes: Presentation Mode: Display the same image on your computer
VGA (or compatible) monitor and television simultaneously. Television Only Mode: Use the television as your only display. Video Record Mode: Record your video image directly to video
tape.
Suggested Uses for the CVD 7176
The CVD 7176 can be used for many purposes. For