KRAMER VM-3AN Audio Distribution Amplifier User Manual
- June 5, 2024
- Kramer
Table of Contents
Kramer Electronics, Ltd.
USER MANUAL
Models:
VM-3AN, 1:3 Audio DA
VM-3SN, 1:3 s-Video DA
VM-3VN, 1:3 Video DA
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 video, audio, presentation, and broadcasting
professionals on a daily basis. In recent years, we have redesigned and
upgraded most of our line, making the best even better! Our 1,000-plus
different models now appear in 11 groups¹ that are clearly defined by
function.
Thank you for purchasing your Kramer TOOLS™ VM-3AN Audio DA, VM-3SN s-Video
DA, and/or VM-3VN Video DA.
These products are ideal for the following typical applications:
- Audio duplication studios, delivering high-quality audio and video duplicates
- Broadcast and production studios for signal distribution
- Presentation and multimedia distribution
- Field distribution
The package includes the following items:
- VM-3AN Audio DA, or VM-3SN s-Video DA, or VM-3VN Video DA
- Power adapter, this user manual²
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 cables³
2.1 Quick Start
This quick start chart summarizes the basic setup and operation:
-
GROUP 1: Distribution Amplifiers;
GROUP 2: Switchers and Matrix Switchers;
GROUP 3: Control Systems;
GROUP 4: Format/Standards Converters;
GROUP 5: Range Extenders and Repeaters;
GROUP 6: Specialty AV Products;
GROUP 7: Scan Converters and Scalers;
GROUP 8: Cables and Connectors;
GROUP 9: Room Connectivity;
GROUP 10: Accessories and Rack Adapters;
GROUP 11: Sierra Products -
Download up-to-date Kramer user manuals from the Internet at this URL: http://www.kramerelectronics.com
-
The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com
Overview
This section gives a summary of:
- The VM-3AN Audio DA, see section 3.1
- The VM-3SN s-Video DA, see section 3.2
- The VM-3VN Video DA, see section 3.3
- Recommendations for achieving the best performance, see section 3.4
3.1 VM-3AN Audio DA
The VM-3AN is a high-quality 1:3 balanced stereo audio distribution amplifier.
It accepts one balanced stereo input on a removable terminal block and
distributes the signal to three identical outputs on removable terminal
blocks.
Specifically, the VM-3AN features:
- Left and right signal level trimmers on the front panel
- 12V DC power
3.2 VM-3SN s-Video DA
The VM-3SN is a high-quality 1:3 distribution amplifier for s-Video signals.
It accepts one s-Video input on a 4-pin connector and distributes the signal
to three identical outputs on 4-pin connectors.
Specifically, the VM-3SN features:
- Cand Y level trimmers on the front panel
- 12V DC power
3.3 VM-3VN Video DA
The VM-3VN is a high-quality 1:3 distribution amplifier for composite video
signals. It accepts one composite video input on a BNC connector and
distributes the signal to three identical composite video outputs on BNC
connectors.
Specifically, the VM-3VN features:
- EQ and LEVEL trimmers on the front panel
- 12V DC power
3.4 Achieving the Best Performance
To achieve the best performance:
- Use only good quality connection cables¹ to avoid interference, deterioration in signal quality due to poor matching, and elevated noise levels (often associated with low-quality cables).
- Avoid interference from neighboring electrical appliances that may adversely influence the signal quality and position your Kramer products away from moisture, excessive sunlight, and dust
| Caution – No operator-serviceable parts inside the unit.
Warning – Use only the Kramer Electronics input power wall adapter that
is provided with this unit².
Warning – Disconnect power and unplug the unit from the wall before
installing or removing the device or servicing the unit.
---|---
Your Distribution Amplifier
This section defines your:
- VM-3AN Audio DA, see section 4.1
- VM-3SN s-Video DA, see section 4.2
- VM-3VN Video DA, see section 4.3
- Available from Kramer Electronics on our Web site at http://www.kramerelectronics.com
- For example, part number 2535-000251
4.1 Your VM-3AN Audio DA
Figure 1 and Table 1 define the VM-3AN:
Table 1: VM-3AN Audio DA Features
| Feature| Function
---|---|---
1| INPUT Detachable Terminal Block Connector| Connects to the balanced audio
source
2| OUT Detachable Terminal Block Connector| Connects to the balanced audio
acceptor (from 1 to 3)
3| 12V DC| +12V DC connector for powering the unit
4| LEFT LEVEL Trimmer| Adjusts’ the left output signal level
5| RIGHT LEVEL Trimmer| Adjusts’ the right output signal level
6| ON LED| Illuminates when receiving power
4.2 Your VM-3SN s-Video DA
Figure 2 and Table 2 define the VM-3SN:
Table 2: VM-3SN s-Video DA Features
| Feature| Function
---|---|---
1| INPUT 4-pin Connector| Connects to the s-Video source
2| IN=751) TERM Pushbutton| Terminates the input with 750
3| OUT 4-pin Connector| Connects to the audio acceptor (from 1 to 3)
4| 12V DC| +12V DC connector for powering the unit
5| C LEVEL Trimmer| Adjusts’ the chrominance output signal level for the
s-Video output
6| Y LEVEL Trimmer| Adjusts’ the luminance output signal level for the s-Video
output
7| ON LED| Illuminates when receiving power
4.3 Your VM-3VN Video DA
Figure 3 and Table 3 define the VM-3VN:
Table 3: VM-3VN Video DA Features
| Feature| Function
---|---|---
1| INPUT BNC Connector| Connects to the composite video source
2| IN=750 TERM Pushbutton| Terminates the input with 750
3| OUT BNC Connector| Connects to the composite video acceptor (from 1 to 3)
4| 12V DC| +12V DC connector for powering the unit
5| EQ Trimmer| Adjusts’ the EQ. (equalization) compensation level for the
composite video outputs
6| LEVEL Trimmer| Adjusts the signal level for the composite video outputs
7| ON LED| Illuminates when receiving power
Connecting Your Distribution Amplifier
This section explains how to connect your:
- VM-3AN Audio DA, see section 5.1
- VM-3SN s-Video DA, see section 5.2
- VM-3VN Video DA, see section 5.3
5.1 Connecting Your VM-3AN Audio DA
To connect¹ the VM-3AN, as illustrated in the example in Figure 4, do the
following:
- Connect the balanced stereo audio source to the INPUT terminal block connector.
- Connect the OUT terminal block connectors (from 1 to 3) to up to three balanced stereo audio acceptors² (for example, power amplifiers).
- Connect the 12V DC power adapter to the power socket and connect the adapter to the mains electricity (not illustrated in Figure 4).
- If required, adjust the audio signal levels by turning the LEFT and RIGHT level trimmers with a small screwdriver.
- Switch OFF the power on each device before connecting it to your VM-3AN. After connecting your VM-3AN, switch on its power and then switch on the power on each device
- You do not have to connect all the outputs
5.2 Connecting Your VM-3SN s-Video DA
To connect¹ the VM-3SN, as illustrated in the example in Figure 5, do the
following:
- Connect the s-Video source (for example, an s-Video player) to the INPUT 4-pin connector.
- Terminate the input by ensuring that the TERM switch is pressed to the IN position.
- Connect the OUT 4-pin connectors (from 1 to 3) to up to three s-Video acceptors² (for example, s-Video recorders).
- Connect the 12V DC power adapter to the power socket and connect the adapter to the mains electricity (not illustrated in Figure 5).
- If required, adjust output chrominance (C) and luminance (Y) signal levels by turning the appropriate trimmer with a small screwdriver.
- Switch OFF the power on each device before connecting it to your VM-3SN. After connecting your VM-3SN, switch on its power and then switch on the power on each device
- You do not have to connect all the outputs
5.3 Connecting Your VM-3VN Video DA
To connect¹ the VM-3VN, as illustrated in the example in Figure 6, do the following:
- Connect the composite video source to the INPUT BNC connector.
- Terminate the input by ensuring that the TERM switch is pressed to the IN position.
- Connect the OUT BNC connectors (from 1 to 3) to up to three composite video acceptors².
- Connect the 12V DC power adapter to the power socket and connect the adapter to the mains electricity (not illustrated in Figure 6).
- If required, adjust output equalization (EQ) and signal level (LEVEL) by turning the appropriate trimmer with a small screwdriver.
- Switch OFF the power on each device before connecting it to your VM-3VN. After connecting your VM-3VN, switch on its power and then switch on the power on each device
- You do not have to connect all the outputs
Technical Specifications
Table 4 includes the technical specifications.
Table 4: Technical Specifications
| VM-3AN| VM-3SN| VM-3VN
---|---|---|---
INPUT:| 1 balanced audio stereo on 5-pin terminal blocks| 1 YC on a 4-pin
connector| 1 composite video on a BNC connector
OUTPUTS:| 3 balanced audio stereo on 5-pin terminal blocks| 3 YC on 4-pin
connectors| 3 composite video on BNC connectors
MAX. INPUT / OUTPUT LEVEL:| 18.5Vpp| 2Vpp, Y| 1.8Vpp
BANDWIDTH (-3dB):| >100 kHz| 135MHz| 430MHz
DIFF GAIN:| —| 0.03%| 0.12%
DIFF PHASE:| —| 0.03Deg| 0.03Deg
K-FACTOR:| —| <0.05%| <0.05%
SIN RATIO:| 90dB @1kHz| 78dB @5MHz| 74.3dB
CONTROL:| Output level control: -77 to +6dB, R+/-, L+/- channels| Y-level:
-1.6 to +6.3dB; C-level: -0.4 to +7.6dB| Level: -1.6 to +6dB; Equalization: 0
to +6dB
COUPLING:| —| AC| AC
AUDIO THD + NOISE:| 0.008%| —| —
AUDIO 2d HARMONIC:| 0.001%| —| —
POWER SOURCE:| 12V DC, 89mA| 12V DC, 29mA| 12V DC, 27mA
DIMENSIONS:| 11.7cm x 6cm x 3.2cm (4.6″ x 2.4″ x 1.3″) W, D, H
WEIGHT:| 0.28 kg (0.62 lbs.) approx.
ACCESSORIES:| Power supply
OPTIONS:| Rack adapter
LIMITED WARRANTY
The warranty ooligati.xls of Kramer Electronics for this product are limited
to the terms set forth below
What is Covered
This limited warranty covers defects in materials and workmanship in this
product.
What is Not Covered
This limited warranty does not cover any damage, deterioration a malfunction
resulting from any alteration. modification, improper or unreasonable use or
maintenance, misuse. abuse. accident, neglect. exposure to excess moisture.
fire. improper Packing and shipping (such claims must be presented to the
carrier). lightning. power surges. or other acts of nature. This limited
warranty does not cover any damage. deterioration or malfunction resulting
from the installation or removal of this product from any installation. any
unauthorized tampering with this product any repairs attempted by anyone
unauthorized by Kramer Electronics to make such repairs or any other cause
that does not relate directly to a defect in materials and workmanship of this
product. This limited warranty does not cover cartons or equipment enclosures.
cables or accessories used in conjunction with this product Without limiting
any other exclusion heroin. Kramer Electronics does not warrant that the
product is covered hereby. including. without limitation. the technology
and/or Integrated circuit(s) included in the product. will not become obsolete
or that such items are or will remain compatible with any other product or
technology with which the product may be used.
How Long Does this Coverage Last
Suwon years as of this printing. please check our Web silo lot the must
cotton% and accurate warranty information
Who is Covered
Only the original purchaser of this product is covered under this limited
warranty. This envied warranty is not transferable to subsequent purchasers or
owners of this product What Kramer Electronics will do
Kramer Electronics win. at Its sole option, provide one of the following three
remedies to whatever extent it shall deem necessary to satisfy a proper claim
under this limited warranty:
- Elect to repair or facilitate the repair of any defective parts within a reasonable period of time. free of any charge for the necessary parts and labor to complete the repair and restore this product to its proper operating condition Kramer Electronics will also pay the shipping costs necessary to return this product once the repair Is complete
- Replace this product with a direct replacement or with a similar product deemed by Kramer Electronics to perform substantially the same function as the original product Issue a refund of the anginal purchase pity less depreciation to be determined based on the ace of the product at the time remedy is sought under this limited warranty.
What Kramer Electronics will not do Under This Limited Warranty
If this product is returned to Kramer Electronics or the authorized dealer
from which it was purchased or any other party authorized to repair Kramer
Electronics products. this product must be insured during shipment with the
insurance and shipping charges prepaid by you. If this product Is returned
uninsured. you assume all risks of loss or damage during shipment Kramer
Electronics will not be responsible for any costs related to the removal or
re-installation of this product from or into any installation. Kramer
Electronics will not be responsible for any costs related to any setting up
this product, any adjustment of user controls or any programming required for
a Specific installation Minn of the product
How to Obtain a Remedy under this Limited Warranty, you must contact
either the authorized Kramer Electronics reseller from whom you purchased this
product or the Kramer Electronics office nearest you. For a list of authorized
Kramer Electronics resellers and/or Kramer Electronics authorized service
providers. please visit our website at www.Kramer
electronics corn or contact the Kramer Electronics office nearest you. In
order to pursue any remedy under this limited warranty, you must possess an
original. dated receipt as proof of purchase from an authorized Kramer
Electronics reserver. It this product is returned under this limited warranty,
a return authorization number. obtained from Kramer Electronics, wit be
required You may also be directed to an authorized reseller or a person
authorized by Kramer Electronics to re paw the product lilt is decoded that
this product should be returned directly to Kramer Electronics. this product
should be properly packed, preferably in the original carton, tor shipping
Canons not bearing a return authorization number will be refused_
Limitation on Liability
THE MAXIMUM LIABILITY OF KRAMER ELECTRONICS UNDER THIS LIMITED WARRANTY SHALL
NOT EXCEED THE ACTUAL PURCHASE PRICE PAID FOR THE PRODUCT TO THE MAXIMUM
EXTENT PERMITTED BY LAW. KRAMER ELECTRONICS IS NOT RESPONSIBLE FOR DIRECT.
SPECIAL. INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM ANY BREACH OF
WARRANTY OR CONDITION. OR UNDER ANY OTHER LEGAL THEORY. Some countries.
districts or states do not allow the exclusion or limitation of relief,
special. Incidental. consequential or indirect damages. or the limitation of
inability to specified amounts. so the above limitations or exclusions may not
apply to you
Exclusive Remedy
TO THE MAXIMUM EXTENT PERMITTED BY LAW, THIS LIMITED WARRANTY AND THE REMEDIES
SET FORTH ABOVE ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES. REMEDIES
AND CONDITIONS. WHETHER ORAL OR WRITTEN. EXPRESS OR IMPLIED TO THE MAXIMUM
EXTENT PERMITTED BY LAW. KRAMER ELECTRONICS SPECIFICALLY DISCLAIMS ANY AND ALL
IMPLIED WARRANTIES. INCLUDING. WITHOUT LIMITATION, WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IF KRAMER ELECTRONICS
CAN NOT LAWFULLY DISCLAIM OR EXCLUDE IMPLIED WARRANTIES UNDER APPLICABLE LAW
THEN ALL IMPLIED WARRANTIES COVER THIS PRODUCT. INCLUDING WARRANT IES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, SHALL APPLY TO THIS
PRODUCT AS PROVIDED UNDER APPLICABLE LAW IF ANY PRODUCT TO WHICH THIS LIMITED
WARRANTY APPLIES ISA ‘CONSUMER PRODUCE UNDER THE MAGNUSON-MOSS WARRANTY ACT
(15 U S C.A §2301, ET SEG.I OR OTHER APPLICABLE LAW, THE FOREGOING DISCLAIMER
OF IMPLIED WARRANTIES SHALL NOT APPLY TO YOU, AND ALL IMPLIED WARRANTIES ON
THIS PRODUCT, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR THE
PARTICULAR PURPOSE, SHALL APPLY AS PROVIDED UNDER APPLICABLE LAW
Other Conditions
This limited warranty gives you specific legal rights, and you may have other
rights which vary from country to country or state to state. This limited
warranty is void if the label bearing the serial number of this product has
been removed or defaced, (ill the product rs not distributed by Kramer
Electronics or lai)this product is not purchased from an authorized Kramer
Electronics reseller. II you are unsure whether a meet is an authorized Kramer
Electronics ‘Lessner. please visit our Web site at veww.kramerelectronics.com
or contact a /Garnet- Electronics office from the list at the end of this
document. Your rights under this limited warranty are not diminished if you do
not complete and return the product registration form or complete and submit
the online product registration form. Kramer Electronics thanks you for
purchasing a Kramer Electronics product. We hope it will give you years of
satisfaction.
For the latest information on our products and a list of Kramer distributors,
visit our Web site where updates to this user manual may be found.
We welcome your questions, comments, and feedback.
Web site: www.kramerelectronics.com
E-mail: info@kramerel.com
SAFETY WARNING
Disconnect the unit from the power supply before opening and servicing
Kramer Electronics, Ltd.
Web site: www.kramerelectronics.com
E-mail: info@kramerel.com
2900–000486 REV 2
References
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