Comprehensive CVG-10ARxl User manual

USER MANUAL
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Model:
CVG-10ARxl
Video Audio Distribution Amplifier
For maximum results, use Comprehensive
Brand Premium High Resolution cables
and connectors.

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Contents
1 Introduction 1
2 Getting Started 1
3 Overview 1
4 Your CVG-10ARxl Video Audio Distribution Amplifier 2
5 Installing on a Rack 4
6 Using the CVG-10ARxl Video Audio Distribution Amplifier 5
6.1 Connecting a CVG-10ARxl Video Audio Distribution Amplifier 5
6.2 Increasing the Outputs 6
7 Technical Specifications 8
Figures
Figure 1: CVG-10ARxl Video Audio Distribution Amplifier 2
Figure : Increasing the Outputs: Arranging a 1:30 Video Audio DA 7
Tables
Table 1: Front Panel CVG-10ARxl Video Audio Distribution Amplifier Features 2
Table 2: Rear Panel CVG-10ARxl Video Audio Distribution Amplifier Features 3
Table : Technical Specifications of the CVG-10ARxl 8

1
1 Introduction
Congratulations on purchasing your CVG-10ARxl Video Audio Distribution
Amplifier. This product is ideal for:
Audio video duplication studios
Rental/staging, CCTV, and home theater use
The package includes the following items CVG-10ARxl Video Audio
Distribution Amplifier,power cord and this user manual.
2 Getting Started
We recommend that you:
Unpack the equipment carefully and save the original box and packaging
materials for possible future shipment
Review the contents of this user manual
3 Overview
The CVG-10ARxl is a state-of-the-art 1:10 video audio distribution amplifier
using BNC connectors for composite video, and RCA connectors for
unbalanced stereo audio signals. The CVG-10ARxl accepts a composite
video input and distributes the signal to 10 identical outputs.
In particular, the CVG-10ARxl:
Includes looping connectors for connecting to a local monitor, other
acceptor, or for forming larger systems
1
Has a video bandwidth of 360MHZ, ensuring transparent performance
with typical video and audio sources
Can function as unbalanced stereo audio or balanced
2
mono audio
(selected via an audio control button)
Can output video signals that are DC or AC coupled for maximum
flexibility (selected via a coupling button)
Has front panel video trimmer controls
3
for output level and cable
1 For example, you can connect 3 CVG-10ARxl units to make a 1:30 video audio distribution amplifier (see section 6.2)
2 Recommended for low signal transmission over long distances or in audio broadcasting studios for high quality signal
recreation
3 The video outputs are arranged in two blocks of 5 outputs (outputs 1 to 5, and outputs 6 to 10). Each block can be separately
trimmed for output level and cable equalization (EQ.) thus achieving different compensations for different cable lengths

2
equalization (EQ.), as well as audio trimmer controls for left and right gain,
with an enable / disable control button
Achieving the best performance means:
Connecting only good quality connection cables, thus avoiding
interference, deterioration in signal quality due to poor matching, and elevated
noise levels (often associated with low quality cables)
Avoiding interference from neighboring electrical appliances and
positioning your CVG-10ARxl away from moisture, excessive sunlight and
dust
4 Your CVG-10ARxl Video Audio Distribution Amplifier
Figure 1 and Tables 1 and 2 define the CVG-10ARxl:
Figure 1: CVG-10ARxl Video Audio Distribution Amplifier
Table 1: Front Panel CVG-10ARxl Video Audio Distribution Amplifier Features
# Feature Function
1 Power Switch Illuminated switch supplying power to the unit
2 Left Gain Trimmer Adjusts
1
the audio signal level for the left channel
3 BAL/ST Button Pushing in selects balanced mono audio operation, releasing selects
unbalanced stereo audio operation
4 Right Gain Trimmer Adjusts
1
the audio signal level for the right channel
5
AUDIO
CONTROL
Enable/Disable Button
Pushing in enables audio gain trimmer control, releasing bypasses it
disabling audio gain trimmer control
6 EQ. Trimmer Adjusts
1
the video EQ. (equalization) compensation of outputs 6 to 10
7 LEVEL Trimmer Adjusts
1
the video signal level of outputs 6 to 10
8 EQ. Trimmer Adjusts
1
the video EQ. (equalization) compensation of outputs 1 to 5
9
VIDEO
CONTROL
LEVEL Trimmer Adjusts
1
the video signal level of outputs 1 to 5
1 Insert a screwdriver into the hole and carefully rotate it, to trim the level

3
Table 2: Rear Panel CVG-10ARxl Video Audio Distribution Amplifier Features
# Feature Function
1 VIDEO IN BNC Connector Connects to the video source
2 VIDEO LOOP BNC Connector For looping to increase output availability
3 Term Button Pushing in selects 75, releasing selects Hi-Z
1
4 Coupling Button Pushing in selects DC coupling
2
, releasing selects AC coupling
(removing the DC offset of the input signal)
5 VIDEO OUT BNC Connectors Connect to the video acceptors
6 AUDIO IN RCA Connectors Connects to the stereo audio source
7 AUDIO LOOP RCA Connectors For looping to increase audio output availability
8 AUDIO OUTPUTS RCA Connectors
Connect to the stereo audio acceptors
9 Power Connector with Fuse AC connector enabling power supply to the unit
1 For looping select Hi-Z
2 Achieving the best linearity and signal fidelity

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5 Installing on a Rack
This section describes what to do before installing on a rack and how to rack
mount.

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6 Using the CVG-10ARxl Video Audio Distribution Amplifier
You can connect:
A single CVG-10ARxl unit (see section 6.1)
Several CVG-10ARxl units to increase the number of outputs (see section
6.2)
6.1 Connecting a CVG-10ARxl Video Audio Distribution Amplifier
You can connect a single CVG-10ARxl Video Audio Distribution Amplifier
unit as a 1:10 video audio DA, in which audio is unbalanced stereo audio (left
and right) or balanced mono audio (+ and -).
To connect the CVG-10ARxl as a 1:10 video unbalanced stereo audio DA,
do the following
1
:
1. Connect a video audio source (for example, a composite VCR) to the
VIDEO IN BNC connector and to the left and right AUDIO IN RCA
connectors.
2. Connect the 10
2
VIDEO OUT BNC connectors and the 10 left and right
AUDIO OUTPUT RCA connectors to the video audio acceptors
3
1 to 10.
3. Connect the power cord to the mains electricity.
4. Push in the Term button to terminate the line to 75.
5. Release the BAL/ST button to select unbalanced stereo audio operation.
6. Adjust
4
the video trimmer controls
5
for output signal level and/or cable
compensation equalization level, if required.
7. If audio control adjustment is required for left and/or right gain, push in
Enable/Disable button, and then adjust
3
the trimmer controls.
1 Switch OFF the power on each device before connecting it to your CVG-10ARxl. After connecting your CVG-10ARxl,
switch on its power and then switch on the power on each device
2 As required. Up to 10 outputs can be connected on the CVG-10ARxl. Not all outputs need to be connected
3 For example, VCR units
4 Insert a screwdriver into the hole and carefully rotate it, to trim the level
5 The video outputs are arranged in two blocks of 5 outputs (outputs 1 to 5, and outputs 6 to 10). Each block can be separately
trimmed for output level and cable equalization (EQ.) thus achieving different compensations for different cable lengths

6
6.2 Increasing the Outputs
You can increase the number of outputs by interconnecting CVG-10ARxl
units. The example in Figure 2 illustrates how to connect 3 units to increase
the number of outputs from 10 to 30.
To form a 1:30 video and unbalanced stereo audio DA, do the following
1
:
1. Connect a video audio source (for example, a composite VCR) to the
VIDEO IN BNC connector and to the left and right AUDIO IN RCA
connectors of the first CVG-10ARxl unit.
2. Connect the video LOOP BNC connector of the:
First CVG-10ARxl unit to the VIDEO IN BNC connector of the second
CVG-10ARxl unit
Second CVG-10ARxl unit to the VIDEO IN BNC connector of the third
CVG-10ARxl unit
3. Connect the left and right AUDIO LOOP RCA connectors of the:
First CVG-10ARxl unit to the left and right AUDIO IN RCA connectors
of the second CVG-10ARxl unit
Second CVG-10ARxl unit to the left and right AUDIO IN RCA
connectors of the third CVG-10ARxl unit
4. Connect the 10 VIDEO OUT BNC connectors and the 10 left and right
AUDIO OUTPUT RCA connectors of the:
First CVG-10ARxl unit to the video audio acceptors
2
1 to 10
Second CVG-10ARxl unit to the video audio acceptors
2
11 to 20
Third CVG-10ARxl unit to the video audio acceptors
2
21 to 30
5. On the first and second CVG-10ARxl units, release the Term button. On
the third CVG-10ARxl unit, push in the Term button to terminate the line
to 75.
6. On each CVG-10ARxl unit:
Connect the power cord to the mains electricity
Release the BAL/ST buttons to select unbalanced stereo audio operation
Adjust
3
the video trimmer controls
4
for output signal level and/or cable
1 Switch OFF the power on each device before connecting it to your CVG-10ARxl units. After connecting the CVG-10ARxl
units, switch on their power and then switch on the power on each device
2 For example, VCR units
3 Insert a screwdriver into the hole and carefully rotate it, to trim the level
4 The video outputs are arranged in two blocks of 5 outputs (outputs 1 to 5, and outputs 6 to 10). Each block can be separately
trimmed for output level and cable equalization (EQ.) thus achieving different compensations for different cable lengths

7
compensation equalization level, if required
If audio control adjustment is required for left and/or right gain, push in
the Enable/Disable buttons, and then adjust
1
the trimmer controls
Figure : Increasing the Outputs: Arranging a 1:30 Video Audio DA
1 Insert a screwdriver into the hole and carefully rotate it, to trim the level

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7 Technical Specifications
Table 3 includes the technical specifications:
Table : Technical Specifications
1
of the CVG-10ARxl
INPUTS: 1 composite video, 1 looping, 1Vpp/75with termination switch on BNC
connectors
2 audio, stereo or balanced mono, 2 looping, on RCA connectors
OUTPUTS: 10 composite video, 1Vpp/75on BNC connectors
10 audio, stereo or balanced mono, on RCA connectors
MAX. OUTPUT LEVEL:
VIDEO: 1.6Vpp AUDIO: 26.5 Vpp
BANDWIDTH (-3dB): VIDEO: 360 MHz AUDIO: >100 kHz
DIFF. GAIN: 0.07%
DIFF. PHASE: 0.05 Deg.
K-FACTOR: <0.05%
S/N RATIO: VIDEO: 77dB AUDIO: 87dB
CONTROLS: Front panel accessible trimmers for video level (-1.2dB to +6dB) and EQ. (0dB
to +8.1dB), audio left and right control trimmers (0dB to +6dB), balanced/stereo
selector switch and audio controls enable switch
COUPLING: VIDEO: DC/AC AUDIO: AC
AUDIO THD + NOISE: 0.023%
AUDIO 2nd HARMONIC:
0.001%
POWER SOURCE: 230 VAC 50 / 60Hz (115V U.S.A.), 4.7VA
DIMENSIONS: 19-inch (W), 7-inch (D), 1U (H)
WEIGHT: 2.1kg (4.7 lbs.) approx.
ACCESSORIES: Power cord
1 Specifications are subject to change without notice