Kramer VM-30AV User manual

Kramer Electronics, Ltd.
USER MANUAL
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
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Models:
VM-30AV, 1:3 Audio/Video DA
VM-30AVB, 1:3 Audio/Video DA

Contents
i
Contents
1 Introduction 1
2 Getting Started 1
2.1 Quick Start 1
3 Overview 3
4 Your Audio/Video DA 4
5 Using Your Audio/Video DA 5
5.1 Connecting your VM-30AV/B 5
5.2 Configuring a 1:3 Audio/Video DA for Component (YUV) or RGB 7
6 Technical Specifications 9
Figures
Figure 1: VM-30AV 1:3 Audio/Video DA 4
Figure 2: VM-30AVB 1:3 Audio/Video DA 4
Figure 3: VM-30AV 1:3 Audio/Video DA Connection 6
Figure 4: Configuring a 1:3 Audio/Video DA for Component (YUV) or RGB 8
Tables
Table 1: Front Panel VM-30AV and VM-30AVB 1:3 Audio/Video DA Features 5
Table 2: Rear Panel VM-30AV and VM-30AVB 1:3 Audio/Video DA Features 5
Table 3: VM-30AV and VM-30AVB Technical Specifications 9

Introduction
1
1 Introduction
Welcome to Kramer Electronics! Since 1981, Kramer Electronics has been
providing a world of unique, creative, and affordable solutions to the vast
range of problems that confront the video, audio, presentation, and
broadcasting professional on a daily basis. In recent years, we have
redesigned and upgraded most of our line, making the best even better! Our
500-plus different models now appear in eight groups
1
that are clearly defined
by function.
Congratulations on purchasing your Kramer VM-30AV and/or VM-30AVB
1:3 Audio/Video DA.
The VM-30AV and/or VM-30AVB are ideal for the following applications:
Video/Audio duplication studios
Retail outlets and home theater systems
The package includes the following items:
VM-30AV and/or VM-30AVB 1:3 Audio/Video DA
Power adapter (12V DC input)
This user manual
2
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
2.1 Quick Start
This quick start chart summarizes the basic setup and operation steps.
1 GROUP 1: Distribution Amplifiers; GROUP 2: Video and Audio Switchers, Matrix Switchers and Controllers; GROUP 3:
Video, Audio, VGA/XGA Processors; GROUP 4: Interfaces and Sync Processors; GROUP 5: Twisted Pair Interfaces;
GROUP 6: Accessories and Rack Adapters; GROUP 7: Scan Converters and Scalers; and GROUP 8: Cables and Connectors
2 Download up-to-date Kramer user manuals from the Internet at this URL: http://www.kramerelectronics.com

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Getting Started
2

Overview
3
3 Overview
The VM-30AV and/or VM-30AVB 1:3 Audio/Video DA are high
performance 1:3 distribution amplifiers for video and stereo audio signals.
The VM-30AV and/or VM-30AVB accept one input
1
and distribute the
signal to 3 identical outputs. Video signals transmit via:
RCA connectors on the VM-30AV
BNC connectors on the VM-30AVB
Both the VM-30AV and/or VM-30AVB 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
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 Kramer
VM-30AV or VM-30AVB in a location free from moisture and away
from excessive sunlight and dust
Caution – No operator-serviceable parts inside unit.
Warning – Use only the Kramer Electronics input power
wall adapter that is provided with this unit
2
.
Warning – Disconnect power and unplug unit from wall
before installing or removing device or servicing unit.
1 Typically, a composite video source (such as VCR or camera)
2 For example: model number AD2512C, part number 2535-000251

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your Audio/Video DA
4
4 Your Audio/Video DA
Figure 1 illustrates the front and rear panels of the VM-30AV:
12VDC
70mA
Figure 1: VM-30AV 1:3 Audio/Video DA
Figure 2 illustrates the front and rear panels of the VM-30AVB:
Figure 2: VM-30AVB 1:3 Audio/Video DA

Using Your Audio/Video DA
5
Table 1 and Table 2 define the front and rear panels of the VM-30AV and the
VM-30AVB, respectively.
Table 1: Front Panel VM-30AV and VM-30AVB 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 EQ. Trimmer Adjusts
1
the video EQ. (equalization) compensation
4
VIDEO
LEVEL Trimmer
Adjusts
1
the video signal level
Table 2: Rear Panel VM-30AV and VM-30AVB 1:3 Audio/Video DA Features
# Feature Function
5 INPUT
Connects to the video source
6
VIDEO
OUT
VM-30AV: RCA Connectors
VM-30AVB: BNC Connectors Connects to the video acceptor (from 1 to 3)
7 INPUT (L) Connects to the left audio source
8 INPUT (R) Connects to the right audio source
9 OUT (L) Connects to the left audio acceptor (from 1 to 3)
10
AUDIO RCA
Connectors
OUT (R) Connects to the right audio acceptor (from 1 to 3)
11 12 VDC +12V DC connector for powering the unit
5 Using Your Audio/Video DA
Section 5.1 describes how to connect a VM-30AV/B
2
. Section 5.2 describes
how to configure a 1:3 Audio/Video DA for component video (YUV) or
RGB. You can also use the VM-30AV/B,with its very high frequency, to
process SDI (serial digital interface) video.
5.1 Connecting your VM-30AV/B
To connect
3
the VM-30AV/B 1:3 Audio/Video DA, as the example in Figure
3 illustrates, do the following:
1. Connect a composite video source (for example, a composite video player) to
the VIDEO INPUT connector
4
and to the left and right AUDIO INPUT RCA
connectors.
2. Connect
5
the 3 VIDEO OUT connectors
4
and the left and right AUDIO OUT
RCA connectors to the audio video acceptors (for example, composite video
recorders).
1 Insert a screwdriver into the small hole and carefully rotate it, to trim the appropriate level
2 From this section on, both machines are referred to as VM-30AV/B
3 Switch OFF the power on each device before connecting it to your VM-30AV/B. After connecting your VM-30AV/B,
switch on its power and then switch on the power on each device
4 RCA connectors for VM-30AV and BNC connectors for VM-30AVB
5 As required. Not all the outputs need to be connected

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Using Your Audio/Video DA
6
3. Connect the 12V DC power adapter to the power socket and connect the
adapter to the mains electricity (not shown in Figure 3).
4. Adjust the audio level and the video EQ. and video level, as required.
Figure 3: VM-30AV 1:3 Audio/Video DA Connection

Using Your Audio/Video DA
7
5.2 Configuring a 1:3 Audio/Video DA for Component (YUV) or RGB
To configure a 1:3 Audio/Video DA for component (YUV) or RGB by
combining three VM-30AV/B units, as illustrated in the example in Figure 4,
do the following.
Connect
1
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 connector
2
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 VM-30AV/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 VM-30AV/B unit.
This adjusts the levels on the combined 3 VM-30AV/B units.
1 Switch OFF the power on each device before connecting it to your VM-30AV/B units. After connecting your VM-30AV/B
units, switch on the power on each of the VM-30AV/B units and then switch on the power on each device
2 Not illustrated in Figure 4

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Using Your Audio/Video DA
8
…
RGB 3 RGB 1
RGB INPUT
B INPUT
G INPUT
R INPUT
R3 OUT
G3 OUT
B3 OUT
R1 OUT
G1 OUT
B1 OUT
OUTPUTS
Figure 4: Configuring a 1:3 Audio/Video DA for Component (YUV) or RGB

Technical Specifications
9
6 Technical Specifications
Table 3 includes the technical specifications.
Table 3: VM-30AV and VM-30AVB Technical Specifications
INPUTS: 1 composite video 1 Vpp/75: RCA connector (VM-30AV); BNC
connector (VM-30AVB)
1 stereo audio, 4.8 Vpp / 73kon RCA connectors
OUTPUTS: 3 composite video 1 Vpp/75: RCA connectors (VM-30AV); BNC
connectors (VM-30AVB)
3 stereo audio, 1 Vpp / 150on RCA connectors
MAX. OUTPUT LEVEL: VIDEO: 2.0Vpp AUDIO: 5.4Vpp
BANDWIDTH (-3dB): VIDEO: 430MHz (-3dB),
370MHz (-0.1dB), Fully Loaded
AUDIO: >100kHz (-3dB),
20kHz (-0.1dB)
DIFF. GAIN: 0.04%
DIFF. PHASE: 0.07 Deg.
K-FACTOR: <0.05%
VIDEO NON-LINEARITY: 0.1%
S/N RATIO: VIDEO: 73.1dB AUDIO: 83dB
CROSSTALK (all hostile): VIDEO: AUDIO:
CONTROLS: Gain: video: -1.1dB to +1.8dB; audio: -66dB to +16dB; EQ.: 0 to
+14.6dB
COUPLING: AC
AUDIO THD + NOISE: 0.38% @ 1kHz
AUDIO 2nd HARMONIC: 0.02% @ 1kHz
POWER SOURCE: 12 VDC, 30mA
DIMENSIONS: 16.5cm x 12cm x 4.5cm (6.5” x 4.7” x 1.7”, W, D, H)
WEIGHT: 0.6kg (1.3lbs.) approx.
ACCESSORIES: 12 VDC power supply
OPTIONS: 19" rack adapter

KRAMER: SIMPLE CREATIVE TECHNOLOGY
10
LIMITED WARRANTY
WHO IS PROTECTED?
WHAT IS COVERED AND WHAT IS NOT COVERED
WHAT WE WILLPAY FOR AND WHAT WE WILLNOT PAY FOR
HOW YOU CAN GET WARRANTY SERVICE
LIMITATION OF IMPLIED WARRANTIES
EXCLUSION OF DAMAGES
CAUTION!
Kramer Electronics (hereafter ) warrants this product free from defects in material and workmanship under the
following terms.
Kramer
HOW LONG IS THE WARRANTY
Labor and parts are warranted for seven years from the date of the first customer purchase.
Only the first purchase customer may enforce this warranty.
We will pay labor and material expenses for covered items.We will not pay for the following:
The liability of Kramer for any effective products is limited to the repair or replacement of the product at our option. Kramer shall
not be liable for:
This warranty gives you specific legal rights, and you may also have other rights, which vary from place to place.
All products returned to Kramer for service must have prior approval. This may be obtained from your dealer.
This equipment has been tested to determine compliance with the requirements of:
EN-50081: "Electromagnetic compatibility (EMC);
generic emission standard.
Residential, commercial and light industry"
EN-50082: "Electromagnetic compatibility (EMC) generic immunity standard.
Part 1: Residential, commercial and lightindustry environment".
CFR-47: FCC Rules and Regulations:
Part 15: “Radio frequency devices
Subpart B Unintentional radiators”
Except as below, this warranty covers all defects in material or workmanship in this product. The following are not covered
by the warranty:
1. Any product which is not distributed by Kramer, or which is not purchased from an authorized Kramer dealer. If you are
uncertain as to whether a dealer is authorized, please contact Kramer at one of the agents listed in the Web site
www.kramerelectronics.com.
2. Any product,on which the serial number has been defaced, modified or removed.
3. Damage, deterioration or malfunction resulting from:
i) Accident, misuse, abuse, neglect, fire, water, lightning or other acts of nature
ii) Product modification, or failure to follow instructions supplied with the product
iii) Repair or attempted repair by anyone not authorized by Kramer
iv) Any shipment of the product (claims must be presented to the carrier)
v) Removal or installation of the product
vi) Any other cause, which does not relate to a product defect
vii) Cartons, equipment enclosures, cables or accessories used in conjunction with the product
1. Removal or installations charges.
2. Costs of initial technical adjustments (set-up), including adjustment of user controls or programming. These costs are the
responsibility of the Kramer dealer from whom the product was purchased.
3. Shipping charges.
1. To obtain service on you product, you must take or ship it prepaid to any authorized Kramer service center.
2. Whenever warranty service is required, the original dated invoice (or a copy) must be presented as proof of warranty
coverage, and should be included in any shipment of the product. Please also include in any mailing a contact name,
company, address, and a description of the problem(s).
3. For the name of the nearest Kramer authorized service center, consult your authorized dealer.
All implied warranties, including warranties of merchantability and fitness for a particular purpose, are limited in duration to
the length of this warranty.
1. Damage to other property caused by defects in this product, damages basedupon inconvenience, loss of use of the product, loss
of time, commercial loss; or:
2. Any other damages, whether incidental, consequential or otherwise. Some countries may not allow limitations on how long an
implied warranty lasts and/or do not allow the exclusion or limitation of incidental or consequential damages, so the above
limitations and exclusions may not apply to you.
Servicing the machines can only be done by an authorized Kramer technician. Any user who makes changes or
modifications to the unit without the expressed approval of the manufacturer will void user authority to operate the
equipment.
Use the supplied DC power supply to feed power to the machine.
Please use recommended interconnection cables to connect the machine to other components.
NOTE:
Part 1:

Kramer Electronics, Ltd.
Web site: www.kramerelectronics.com
E-mail: [email protected]
P/N: 2900–001035 REV 3
For the latest information on our products and a list of Kramer
distributors, visit our Web site: www.kramerelectronics.com,
where updates to this user manual may be found.
We welcome your questions, comments and feedback.
Caution
Safety Warning:
Disconnect the unit from the power supply before
opening/servicing.