Kramer VM-10xl User manual

Kramer Electronics, Ltd.
USER MANUAL
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Model:
VM-10xl
Video Audio Distribution Amplifier

Contents
i
Contents
1 Introduction 1
2 Getting Started 1
2.1 Quick Start 1
3 Overview 3
4 Your VM-10xl Video Audio Distribution Amplifier 3
5 Installing on a Rack 6
6 Using the VM-10xl Video Audio Distribution Amplifier 7
6.1 Connecting a VM-10xl Video Audio Distribution Amplifier 7
6.2 Increasing the Outputs 9
7 Technical Specifications 11
Figures
Figure 1: VM-10xl Video Audio Distribution Amplifier 4
Figure 2: Connecting a single VM-10xl Video Audio Distribution Amplifier 8
Figure : Increasing the Outputs: arranging a 1:30 Video Audio DA 10
Tables
Table : Front Panel VM-10xl Video Audio Distribution Amplifier Features 5
Table : Rear Panel VM-10xl Video Audio Distribution Amplifier Features 5
Table : Technical Specifications of the VM-10xl Video Audio Distribution Amplifier 11

Introduction
1
1 Introduction
Welcome to Kramer Electronics (since 1981): a world of unique, creative and
affordable solutions to the infinite range of problems that confront the video,
audio and presentation 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 8 Groups
1
, which are clearly defined
by function.
Congratulations on purchasing your Kramer VM-10xl Video Audio
Distribution Amplifier. The VM-10xl is ideal for:
Audio video duplication studios
Rental/staging, CCTV, and home theater use
Each package includes the following items:
VM-10xl Video Audio Distribution Amplifier
Power cord
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
Use Kramer high performance high resolution cables
3
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
3 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Getting Started
2

Overview
3
3 Overview
The VM-10xl is a high quality 1:10 video audio distribution amplifier using
BNC connectors for composite video, and RCA connectors for unbalanced
stereo audio signals. The VM-10xl accepts a composite video input and
distributes the signal to 10 identical outputs.
In particular, the VM-10xl:
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
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 VM-10xl away from moisture, excessive sunlight and
dust
4 Your VM-10xl Video Audio Distribution Amplifier
Figure 1 and Table 1 define the VM-10xl Video Audio Distribution Amplifier:
1 For example, you can connect 3 VM-10xl units to make a 1:30 video audio distribution amplifier. See section 6.2 for details
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

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your VM-10xl Video Audio Distribution Amplifier
4
Figure 1: VM-10xl Video Audio Distribution Amplifier

Your VM-10xl Video Audio Distribution Amplifier
5
Table : Front Panel VM-10xl Video Audio Distribution Amplifier Features
# Feature Function
1 POWER Switch Illuminated switch supplying power to the unit
2 BAL/ST Button Pushing in selects balanced mono audio operation, releasing
selects unbalanced stereo audio operation
3 LEFT GAIN Trimmer Adjusts
1
the audio signal level for the left channel
4 Enable/Disable Button Pushing in enables audio gain trimmer control, releasing bypasses
it disabling audio gain trimmer control
5
AUDIO
CONTROL
RIGHT GAIN Trimmer Adjusts
1
the audio signal level for the right channel
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 LEVEL Trimmer Adjusts
1
the video signal level of outputs 1 to 5
9
VIDEO
CONTROL
EQ. Trimmer Adjusts
1
the video EQ. (equalization) compensation of outputs 1 to 5
Table : Rear Panel VM-10xl Video Audio Distribution Amplifier Features
# Feature Function
10 VIDEO IN BNC Connector Connects to the video source
11 LOOP BNC Connector For looping to increase output availability
12 TERM Button Pushing in selects 75, releasing selects Hi-Z
2
13 COUPLING Button Pushing in selects DC coupling
3
, releasing selects AC
coupling (removing the DC offset of the input signal)
14 VIDEO OUT BNC Connectors Connect to the video acceptors (from 1 to 10)
15 AUDIO IN RCA Connectors Connects to the stereo audio source (R and L)
16 AUDIO LOOP RCA Connectors For looping to increase audio output availability (R and L)
17 AUDIO OUTPUTS RCA Connectors Connect to the stereo audio acceptors R and L, from 1 to 10)
18 Power Connector with Fuse AC connector enabling power supply to the unit
1 Insert a screwdriver into the hole and carefully rotate it, to trim the level
2 For looping select Hi-Z
3 Achieving the best linearity and signal fidelity

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Installing on a Rack
6
5 Installing on a Rack
This section describes what to do before installing on a rack and how to rack
mount.
Before installing on a rack, be sure that the environment is
within the recommended range:
Operating temperature range +5 to +45 Deg. Centigrade
5 to 65% RHL, non-condensing
-20 to +70 Deg. Centigrade
5 to 95% RHL, non-condensing
Operating humidity range
Storage temperature range
Storage humidity range
When installing on a 19" rack, avoid hazards by taking
care that:
It is located within the recommended environmental
conditions, as the operating ambient temperature of a
closed or multi unit rack assembly may exceed the
room ambient temperature.
Attach both ear brackets to the
machine. To do so, remove the
screws from each side of the machine
(3 on each side), and replace those
screws through the ear brackets.
Place the ears of the machine
against the rack rails, and insert the
proper screws (not provided) through
each of the four holes in the rack
ears.
Note that:
Detachable rack ears can be removed
for desktop use
Always mount the machine in the rack
before you attach any cables or
connect the machine to the power
If you are using a Kramer rack adapter
kit (for a machine that is not 19"), see
the Rack Adapters user manual for
installation instructions (you can
download it at:
http://www.kramerelectronics.com)
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In some models, the front panel
may feature built-in rack ears
Once rack mounted, enough air will still flow around the
machine.
The machine is placed straight in the correct horizontal
position.
You do not overload the circuit(s). When connecting
the machine to the supply circuit, overloading the
circuits might have a detrimental effect on overcurrent
protection and supply wiring. Refer to the appropriate
nameplate ratings for information. For example, for
fuse replacement, see the value printed on the product
label.
The machine is earthed (grounded) in a reliable way
and is connected only to an electricity socket with
grounding. Pay particular attention
and that you use only the power cord that is
supplied with the machine.
to situations where
electricity is supplied indirectly (when the power cord is
not plugged directly into the socket in the wall), for
example, when using an extension cable or a power
strip,

CAUTION!!
Before Installing on a Rack
How to Rack Mount
To rack-mount a machine:
1
1
2
2
3
4
5

Using the VM-10xl Video Audio Distribution Amplifier
7
6 Using the VM-10xl Video Audio Distribution Amplifier
You can connect:
A single VM-10xl unit (see section 6.1)
Several VM-10xl units to increase the number of outputs (see section 6.2)
6.1 Connecting a VM-10xl Video Audio Distribution Amplifier
You can connect a single VM-10xl 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 VM-10xl as a 1:10 video unbalanced stereo audio DA, as the
example in Figure 2 illustrates, do the following
1
:
1. Connect a video audio source (for example, a composite video player) to
the VIDEO IN BNC connector and to the left and right AUDIO IN RCA
connectors.
2. Connect
2
the 10 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. If required, adjust
4
the video trimmer controls
5
for output signal level
and/or cable compensation equalization level.
7. If audio control adjustment is required for left and/or right gain, push in
Enable/Disable button, and then adjust
6
the trimmer controls.
1 Switch OFF the power on each device before connecting it to your VM-10xl. After connecting your VM-10xl, 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 VM-10xl. 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 Insert a screwdriver into the hole and carefully rotate it, to trim the level

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Using the VM-10xl Video Audio Distribution Amplifier
8
Figure 2: Connecting a single VM-10xl Video Audio Distribution Amplifier

Using the VM-10xl Video Audio Distribution Amplifier
9
6.2 Increasing the Outputs
You can increase the number of outputs by interconnecting VM-10xl 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 VM-10xl unit.
2. Connect the video LOOP BNC connector of the:
First VM-10xl unit to the VIDEO IN BNC connector of the second
VM-10xl unit
Second VM-10xl unit to the VIDEO IN BNC connector of the third
VM-10xl unit
3. Connect the left and right AUDIO LOOP RCA connectors of the:
First VM-10xl unit to the left and right AUDIO IN RCA connectors of
the second VM-10xl unit
Second VM-10xl unit to the left and right AUDIO IN RCA connectors
of the third VM-10xl unit
4. Connect the 10 VIDEO OUT BNC connectors and the 10 left and right
AUDIO OUTPUT RCA connectors of the:
First VM-10xl unit to the video audio acceptors
2
1 to 10
Second VM-10xl unit to the video audio acceptors
2
11 to 20
Third VM-10xl unit to the video audio acceptors
2
21 to 30
5. On the first and second VM-10xl units, release the Term button. On the
third VM-10xl unit, push in the Term button to terminate the line to 75.
1 Switch OFF the power on each device before connecting it to your VM-10xl units. After connecting the VM-10xl units,
switch on their power and then switch on the power on each device
2 For example, VCR units

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Using the VM-10xl Video Audio Distribution Amplifier
10
6. On each VM-10xl unit:
Connect the power cord to the mains electricity
Release the BAL/ST buttons to select unbalanced stereo audio
operation
Adjust
1
the video trimmer controls
2
for output signal level and/or cable
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
2 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

Technical Specifications
11
7 Technical Specifications
Table 3 includes the technical specifications:
Table : Technical Specifications
1
of the VM-10xl Video Audio Distribution Amplifier
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: 26.5Vpp
BANDWIDTH (-3dB): VIDEO: 360MHz AUDIO: >100kHz
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 (4.7lbs.) approx.
ACCESSORIES: Power cord
1 Specifications are subject to change without notice

KRAMER: SIMPLE CREATIVE TECHNOLOGY
12
LIMITED WARRANTY
WHO IS PROTECTED?
WHAT IS COVERED AND WHAT IS NOT COVERED
WHAT WE WILL PAY FOR AND WHAT WE WILL NOT 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 light industryenvironment".
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) Removalor 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: 2900-001042 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.