USER MANUAL
Contents
1. 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 WHAT WE WILL PAY FOR AND WHAT WE WILL NOT PAY FOR We will pay labor and material expenses for covered items We will not pay for the following 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 HOW YOU CAN GET WARRANTY SERVICE 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 of2. the nearest Kramer authorized service center consult your authorized dealer LIMITATION OF IMPLIED WARRANTIES All implied warranties including warranties of merchantability and fitness for a particular purpose are limited in duration to the length of this warranty EXCLUSION OF DAMAGES 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 1 Damage to other property caused by defects in this product damages based upon inconvenience loss of use of the product loss of time commercial loss or 23 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 This warranty gives you specific legal rights and you may also have other rights which vary from place to place NOTE 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 Part 1 Residential commercial and light industry EN 50082 Electromagnetic compatibility EMC generic immunity standard Part 1 Residential commercial and light indust
3. Kramer Electronics Ltd BA KRAMER USER MANUAL Model VM 25 1 25 Video Distribution Amplifier Contents Contents 1 Introduction 2 Getting Started 3 Overview 4 Using the VM 25 Video Distribution Amplifier 4 1 Connecting a VM 25 Video Distribution Amplifier 4 2 Increasing the Outputs 5 Technical Specifications Figures Figure 1 VM 25 1 25 Video Distribution Amplifier Figure 2 Connecting the VM 25 Figure 3 Increasing the Outputs Arranging a 1 75 Video DA Tables Table 1 Front Panel VM 25 Video Distribution Amplifier Features Table 2 Rear Panel VM 25 Video Distribution Amplifier Features Table 3 Technical Specifications of the VM 25 Video Distribution Amplifier O nn ADDENDUM this data is included at the end of the Overview section This addendum adds the following information to the user manual No operator serviceable parts inside unit Use only the Kramer Electronics input power wall adapter that is provided with this unit e Disconnect power and unplug unit from wall before installing or removing device or servicing unit 1 For example model number AD2512C part number 2535 000251 2900 9999992 Al Introduction 2 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 ba
4. OLLWNINZAL S sundino O 9sinding ght Sunding 0Z 9 SIMAINg sz Zsinano Y3MOd MOTAIOAQ Using the VM 25 Video Distribution Amplifier Table 1 Front Panel VM 25 Video Distribution Amplifier Features Feature Function 1 POWER Switch Illuminated switch supplying power to the unit 2 EQ Trimmer Adjusts the video EQ equalization compensation of outputs 21 to 25 3 LEVEL Trimmer Adjusts the video signal level of outputs 21 to 25 4 EQ Trimmer Adjusts the video EQ equalization compensation of outputs 16 to 20 5 LEVEL Trimmer Adjusts the video signal level of outputs 16 to 20 6 EQ Trimmer Adjusts the video EQ equalization compensation of outputs 11 to 15 7 LEVEL Trimmer Adjusts the video signal level of outputs 11 to 15 8 EQ Trimmer Adjusts the video EQ equalization compensation of outputs 6 to 10 9 LEVEL Trimmer Adjusts the video signal level of outputs 6 to 10 10 EQ Trimmer Adjusts the video EQ equalization compensation of outputs 1 to 5 11 LEVEL Trimmer Adjusts the video signal level of outputs 1 to 5 12 TERMINATION Button Pushing in selects 75Q releasing selects Hi Z Table 2 Rear Panel VM 25 Video Distribution Amplifier Features Feature Function 13 INPUT RCA Connector Connects to the video source 14 LOOP RCA Connector For looping if required 15 OUTRCA Connectors Connect to the composite vide
5. PUTS 1 composite video 1 looping on RCA connectors OUTPUTS 25 composite video on RCA connectors MAX OUTPUT LEVEL 1 7Vpp BANDWIDTH 3dB 433MHz DIFF GAIN 0 08 DIFF PHASE 0 005 Deg K FACTOR lt 0 05 S N RATIO 74dB RMS CONTROLS Front panel accessible trimmers for video level 1 2dB to 6 2dB and EQ OdB to 8 dB 50 MHz COUPLING AC POWER SOURCE 12VDC x 162 mA DIMENSIONS 19 inch W 7 inch D 1U H WEIGHT 2 1kg 4 7 lbs approx ACCESSORIES Power supply 1 Specifications are subject to change without notice KRAMER SIMPLE CREATIVE TECHNOLOGY LIMITED WARRANTY Kramer Electronics hereafter Kramer warrants this product free from defects in material and workmanship under the following terms HOW LONG IS THE WARRANTY Labor and parts are warranted for three years from the date of the first customer purchase WHO IS PROTECTED Only the first purchase customer may enforce this warranty WHAT IS COVERED AND WHAT IS NOT COVERED 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
6. button to terminate the line to 75Q On each VM 25 unit Connect the 12V DC power adapter to the power socket on the VM 25 and plug the adapter into the mains electricity socket not shown in Figure 3 If required adjust the video trimmer controls for output signal level and or cable compensation equalization level 1 Switch OFF the power on each device before connecting it to your VM 25 units After connecting the VM 25 units switch on their power and then switch on the power on each device 2 For example composite video displays 3 Insert a screwdriver into the hole and carefully rotate it to trim the level 4 The video outputs are arranged in five blocks of 5 outputs outputs 1 to 5 outputs 6 to 10 outputs 11 to 15 outputs 16 to 20 and outputs 21 to 25 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 Using the VM 25 Video Distribution Amplifier ll I Cue paa A m M Composite Video Player A Display 1 6 Display 26 Figure 3 Increasing the Outputs Arranging a 1 75 Video DA Technical Specifications 5 Technical Specifications Table 3 includes the technical specifications Table 3 Technical Specifications of the VM 25 Video Distribution Amplifier IN
7. er cables is on our Web site at http www kramerelectronics com 1 Overview In particular the VM 25 e Includes a looping connector for connecting to a local monitor other acceptor or for forming larger systems e Has a video bandwidth of more than 430MHZ ensuring transparent performance with typical video sources Has front panel video trimmer controls for output level LEVEL and cable equalization EQ Achieving the best performance means e 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 e Avoiding interference from neighboring electrical appliances and positioning your VM 25 away from moisture excessive sunlight and dust Figure 1 and Table 1 define the VM 25 25 Video Distribution Amplifier 1 For example you can connect 3 VM 25 units to make a 1 75 video distribution amplifier See section 4 2 for details 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 2 KRAMER SIMPLE CREATIVE TECHNOLOGY dayfijduy uoungiusig oaplA Z 1 Z WA T 24814 uIIduuw UOIANQuasIg OSPIA Sa L OH 0000000000 Si an z BAN 03 MENU OA TAT 03 man Da man OA N
8. o acceptors from 1 to 25 16 12VDCIN 12V DC connector for powering the unit 4 Using the VM 25 Video Distribution Amplifier You can connect e A single VM 25 unit see section 4 1 e Several VM 25 units to increase the number of outputs see section 4 2 4 1 Connecting a VM 25 Video Distribution Amplifier To connect the VM 25 as a 1 25 video DA see Figure 2 do the followin 4 g 8 1 Connect a composite video source for example a composite video player to the INPUT RCA connector 2 Connect up to 25 OUT RCA connectors to the video acceptors for example composite video displays 1 Insert a screwdriver into the hole and carefully rotate it to trim the level 2 For looping select Hi Z 3 DA is Distribution Amplifier 4 Switch OFF the power on each device before connecting it to your VM 25 After connecting your VM 25 switch on its power and then switch on the power on each device 5 As required Up to 25 outputs can be connected on the VM 25 Not all outputs need to be connected 4 KRAMER SIMPLE CREATIVE TECHNOLOGY Using the VM 25 Video Distribution Amplifier 3 Connect the 12V DC power adapter to the power socket on the VM 25 and plug the adapter into the mains electricity socket 4 Push in the TERMINATION button to terminate the line to 75Q If required adjust the video trimmer controls for output signal level and or cable compensation equalization level Composite Video Playe
9. r Display 1 Display 25 Figure 2 Connecting the VM 25 1 Since the LOOP output is not being used in this example 2 Insert a screwdriver into the hole and carefully rotate it to trim the level 3 The video outputs are arranged in five blocks of 5 outputs outputs to 5 outputs 6 to 10 outputs 11 to 15 outputs 16 to 20 and outputs 21 to 25 Each block can be separately trimmed for output level and cable equalization EQ thus achieving different compensations for different cable lengths 5 Using the VM 25 Video Distribution Amplifier 4 2 Increasing the Outputs You can increase the number of outputs by interconnecting VM 25 units The example in Figure 3 illustrates how to connect three units to increase the number of outputs from 25 to 75 To form a 1 75 video DA do the following 1 Connect a video source for example a composite video player to the INPUT RCA connector of the first VM 25 unit Connect the video LOOP RCA connector of the First VM 25 unit to the INPUT RCA connector of the second VM 25 unit Second VM 25 unit to the INPUT RCA connector of the third VM 25 unit Connect the 25 OUT RCA connectors of the First VM 25 unit to the video acceptors 1 to 25 Second VM 25 unit to the video acceptors 26 to 50 Third VM 25 unit to the video acceptors 51 to 75 On the first and second VM 25 units release the TERMINATION button On the third VM 25 unit push in the TERMINATION
10. ry environment CFR 47 FCC Rules and Regulations Part 15 Radio frequency devices Subpart B Unintentional radiators CAUTION P gt 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 P gt Use the supplied DC power supply to feed power to the machine PO Please use recommended interconnection cables to connect the machine to other components 9 For the latest information on our products and a list of Kramer distributors visit our W eb site www kramerelectronics com where updates to this user manual may be found We welcome your questions comments and feedback 9001 Institute of Ol Quality 4 Control e Z Ve Sd Quality gt Kramer Electronics Ltd Web site www kramerelectronics com E mail info kramerel com P N 2900 000036 REV 1
11. sis In recent years we have redesigned and upgraded most of our line making the best even better Our 350 plus different models now appear in 8 Groups which are clearly defined by function Congratulations on purchasing your Kramer VM 25 1 25 Video Distribution Amplifier The VM 25 is ideal for e Composite video signal distribution e Video duplication studios delivering undiminished quality duplicates Each package includes the following items e WM 25 1 25 Video Distribution Amplifier e Power cord e This user manual Getting Started We recommend that you e Unpack the equipment carefully and save the original box and packaging materials for possible future shipment e Review the contents of this user manual e Use Kramer high performance high resolution cables Overview The VM 25 is a high quality 1 25 distribution amplifier for composite video The VM 25 accepts a composite video input and distributes the signal to 25 identical outputs using RCA connectors 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 Syne 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 our Web site at http www kramerelectronics com 3 The complete list of Kram
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