USER MANUAL
Models:
CVG-3AVR,
CVG-3AVB,
1:3 Audio/Video DA
1:3 Audio/Video DA
For maximum results, use Comprehensive
Brand Premium High Resolution cables
and connectors.
Contents
1
Introduction 1
2
Getting Started 1
3
Overview 1
4
Your Audio/Video DA 2
5
Using Your Audio/Video DA 4
5.1 Connecting a CVG-3AVR/B 5
5.2 Configuring a 1:3 Audio/Video DA for Component (YUV) or RGB 6
6
Technical Specifications 8
Figures
Figure 1: CVG-3AVR 1:3 Audio/Video DA 2
Figure 2: CVG-3AVB 1:3 Audio/Video DA 3
Figure 3: CVG-3AVR 1:3 Audio/Video DA Connection 5
Figure 4: Configuring a 1:3 Audio/Video DA for Component (YUV) or RGB 7
Tables
Table 1: Front Panel CVG-3AVR and CVG-3AVB 1:3 Audio/Video DA Features 3
Table 2: Rear Panel CVG-3AVR and CVG-3AVB 1:3 Audio/Video DA Features 4
Table 3: Technical Specifications of the CVG-3AVR and CVG-3AVB 8
i
1 Introduction
Congratulations on purchasing your CVG-3AVR and/or CVG-3AVB 1:3
Audio/Video DA, which are ideal for the following applications:
Video/Audio duplication studios
Retail outlets and home theater systems
The package includes the following items:
CVG-3AVR and/or CVG-3AVB 1:3 Audio/Video DA
Power adapter(s)
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-3AVR and/or CVG-3AVB 1:3 Audio/Video DA are exceptionally
high performance 1:3 distribution amplifiers for video and stereo audio
signals. The CVG-3AVR and/or CVG-3AVB accept one input1 and
distribute the signal to 3 identical outputs.
Video signals transmit via:
RCA connectors on the CVG-3AVR
BNC connectors on the CVG-3AVB
Both the CVG-3AVR and/or CVG-3AVB include:
RCA connectors for stereo audio signals
Extra wide video bandwidth of 430MHz that allows for high-resolution
data/video signals, SDI (serial digital) video and other specialized signals
An audio level control knob
Front panel cable EQ (equalization) and video level trimmer controls
1 Typically, a composite video source (such as VCR or camera)
1
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 that may
adversely influence signal quality and positioning your CVG-3AVR or
CVG-3AVB away from moisture, excessive sunlight and dust
4 Your Audio/Video DA
Figure 1 illustrates the front and rear panels of the CVG-3AVR:
Figure 1: CVG-3AVR 1:3 Audio/Video DA
2
Figure 2 illustrates the front and rear panels of the CVG-3AVB:
Figure 2: CVG-3AVB 1:3 Audio/Video DA
Table 1 and Table 2 define the front and rear panels of the CVG-3AVR and
the CVG-3AVB, respectively.
Table 1: Front Panel CVG-3AVR and CVG-3AVB 1:3 Audio/Video DA Features
# Feature Function
1 POWER Switch Illuminated switch supplying power to the unit
2 Audio Level Knob Adjusts the audio output signal level
3 Video EQ. Trimmer Adjusts1 the video EQ. (equalization) compensation
4 Video Level Trimmer Adjusts1 the video signal level
1 Insert a screwdriver into the small hole and carefully rotate it, to trim the appropriate level
3
Table 2: Rear Panel CVG-3AVR and CVG-3AVB 1:3 Audio/Video DA Features
# Feature Function
1 Video INPUT Connects to the video source
2 Video OUT
3 Audio INPUT (L) RCA Connector Connects to the left audio source
4 Audio INPUT (R) RCA Connector Connects to the right audio source
5 Audio OUT (L) RCA Connector Connects to the left audio acceptor (from 1 to 3)
6 Audio OUT (R) RCA Connector Connects to the right audio acceptor (from 1 to 3)
7 12 VDC 70mA +12V DC connector for powering the unit
CVG-3AVR: RCA Connectors
CVG-3AVB: BNC Connectors
Connects to the video acceptor (from 1 to 3)
5 Using Your Audio/Video DA
Section 5.1 describes how to connect a CVG-3AVR/B. Section 5.2 describes
how to configure a 1:3 Audio/Video DA for Component (YUV) or RGB. You
can also use the CVG-3AVR/B, with its very high frequency, to process SDI
(serial digital interface) video.
4
5.1 Connecting a CVG-3AVR/B
Connect1 the CVG-3AVR/B 1:3 Audio/Video DA, as Figure 3 illustrates, as
follows:
1. Connect a composite video source to the video input connector.
2. Connect up to 3 video output connectors to the appropriate audio video
acceptors.
3. Connect the audio source to the right and left audio input connectors.
4. Connect up to 3 right and left audio output connectors to the appropriate
audio video acceptors.
5. Connect the 12V DC power adapter to the power socket and connect the
adapter to the mains electricity.
6. Adjust the audio level and the video EQ. and video level, as required.
Figure 3: CVG-3AVR 1:3 Audio/Video DA Connection
1 Switch OFF the power on each device before connecting it to your CVG-3AVR/B. After connecting your CV G-3AVR/B,
switch on its power and then switch on the power on each device
5
5.2 Configuring a 1:3 Audio/Video DA for Component (YUV) or RGB
Configure a 1:3 Audio/Video DA for component (YUV) or RGB by
combining 3 CVG-3AVR/B units, as Figure 4 illustrates.
Connect1 the 1:3 Audio/Video DA for component (YUV) or RGB, as follows:
1. Connect the RGB source, by connecting:
The R cable to the first unit’s INPUT connector
The G cable to the second unit’s INPUT connector
The B cable to the third unit’s INPUT connector
2. Connect the first RGB acceptor, by connecting the OUT 1 connector from
the:
First unit to the R cable
Second unit to the G cable
Third unit to the B cable
3. Connect the second RGB acceptor, by connecting the OUT 2 connector2
from the:
First unit to the R cable
Second unit to the G cable
Third unit to the B cable
4. Connect the third RGB acceptor, by connecting the OUT 3 connector
from the:
First unit to the R cable
Second unit to the G cable
Third unit to the B cable
5. Connect the audio source and acceptors, as required.
6. On each CVG-3AVR/B unit, connect the 12V DC power adapter to the
power socket and connect the adapter to the mains electricity.
7. Adjust the audio level and the video EQ. and video level, as required, on
the front panel on the first CVG-3AVR/B unit.
This adjusts the levels on the combined 3 CVG-3AVR/B units.
1 Switch OFF the power on each device before connecting it to your CVG-3AVR/B units. After connecting your
CVG-3AVR/B units, switch on the power on each of the CVG-3AVR/B units and then switch on the power on each device
2 Not illustrated in Figure 4
6
Figure 4: Configuring a 1:3 Audio/Video DA for Component (YUV) or RGB
7
6 Technical Specifications
Table 3 includes the technical specifications.
Table 3: Technical Specifications1 of the CVG-3AVR and CVG-3AVB
Inputs:
Outputs:
Coupling: AC
Bandwidth: Video: 430MHz (-3dB), 370MHz (-0.1dB), Full Load;
Gain Range: Video: -1.1dB to +1.8dB;
Maximum Output: Video: 2.0Vpp;
Video Equalization: 0 to +14.6dB
S/N Ratio: Video: 73.1dB;
Video Non-linearity: 0.1%
Differential: Gain: 0.04%; Phase: 0.07 Deg
THD (Audio)/Noise: 0.38% @ 1kHz
2nd Harmonic: 0.02% @ 1kHz
K-Factor: <0.05%
Dimensions: 16.5cm x 12cm x 4.5cm (6.5” x 4.7” x 1.7”, W , D, H)
Power Source: 12 VDC, 45mA
Weight: 0.6kg (1.3lbs.) approx.
Accessories: 12 VDC power supply
1 composite video 1 Vpp/75: RCA connector (CVG-3AVR); BNC connector (CVG-3AVB)
1 stereo audio, 4.8 Vpp / 73k on RCA connectors
3 composite video 1 Vpp/75: RCA connectors (CVG-3AVR); BNC connectors (CVG-3AVB)
3 stereo audio, 1 Vpp / 150 on RCA connectors
Audio: >100kHz (-3dB), 20kHz (-0.1dB)
Audio: -66dB to +16dB
Audio: 5.4Vpp
Audio: 83dB
1 Specifications are subject to change without notice
8
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