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Kramer Electronics, Ltd.
USER MANUAL
Differential Video Line Amplifier
Model:
123V
IMPORTANT: Before proceeding, please read paragraph entitled
"Unpacking and Contents"
KRAMER ELECTRONICS LTD.
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Table Of Contents Section Name Page 1 INTRODUCTION 2 2 A WORD ON DISTRIBUTION AMPLIFIERS 2 3 HOW DO I GET STARTED? 3 4 UNPACKING AND CONTENTS 3 4.1 Optional Accessories 3 5 DIFFERENTIAL LINE AMPLIFIER / DA 4 5.1 Getting to Know your 123V 4 6 INSTALLATION 6 6.1 Rack Mounting 6 7 CONNECTING TO VIDEO DEVICES 6 8 USING THE MACHINE 6 8.1 Turning ON the Machine 6 8.2 Operation 7 9 TYPICAL APPLICATIONS 7 10 TAKING CARE OF YOUR MACHINE 8 11 TROUBLESHOO
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1 INTRODUCTION Congratulations on your purchase of this Kramer Electronics Differential Line Amplifier. Since 1981, Kramer has been dedicated to the development and manufacture of high quality video/audio equipment. The Kramer line has become an integral part of many of the best production and presentation facilities around the world. In recent years, Kramer has redesigned and upgraded most of the line, making the best even better. Kramer’s line of professional video/audio electronic
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! Amplifying circuitry quality is extremely important and should posses high linearity, low distortion and low noise operation. ! The distance between source and acceptors plays a major role in the final result. If long distances (over 15 meters) exist between sources and acceptors - special means should be taken in order to avoid cable loss, such as using higher quality cables or, if necessary, line amplifiers. ! Interference from neighboring appliances can have an adverse effect on
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! 105V - (1:5 Video Distribution Amplifier) can be serially connected between the output of the amplifier and several acceptors for video distribution. The 105V splits a single video input source into five identical outputs. The 105V uses an external 12VDC power source, and therefore is suitable for fieldwork as well. The 105V uses state of the art technology and microchip design, boasting a signal bandwidth of over 200MHz, thus making it suitable for the most demanding applications
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Figure 1: 123V Front Panel Features KRAMER ELECTRONICS LTD. 5
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Table 1: 123V Front Panel Features Feature Function 1. COMPOSITE OUT 3 BNCs for Composite Video outputs. 2. GAIN Output level control trimmer. 3. EQ. Cable Compensation control trimmer. 4. INPUT Video input BNC. 5. Becomes lit when power is connected. ON LED 6. 12VDC feed connector A DC connector that allows power to be supplied to the unit. 6 INSTALLATION 6.1 Rack Mounting The Kramer 123V may be rack mounted in a standard 19” EIA rack assembly, using a special T
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8.2 Operation ! Connect a cable leading from the INPUT connector of the 123V machine to the output of the video source. ! Connect up to three video acceptors to the OUT sockets of the 123V machine. Use best available coaxial cables for connection. ! Connect an appropriate 12VDC source to the DC socket of the 123V machine. Observe polarity. The built-in LED will light. ! Operate source and acceptor(s). ! Adjust the GAIN and EQ. (cable equalization) control trimmers on the 123V mach
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10 TAKING CARE OF YOUR MACHINE Do not locate your machine in an environment where it is susceptible to dust or moisture. Both of these may damage the electronics, and cause erratic operation or failure. Do not locate your machine where temperature and humidity may be excessive. Doing so may also damage the electronics, and cause erratic operation or failure of your machine. Do not clean your machine with abrasives or strong cleaners. Doing so may remove or damage the finish, or may a
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11.2 Video Signal Problem Remedy ! Confirm that your source and output devices are turned on No video at the and connected properly. The input of your machine output device should be of an identical signal format to the output of your source. Signals at the output of your machine should be of an identical signal format as at the input of your display. ! Confirm that any other device in the signal path have the proper input and/or output selected. ! Use the Video Tester to test
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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 fol
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3) For the name of 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 Kramer’s liability for any defective 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 c
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The list of Kramer distributors appears on our web site: www.kramerelectronics.com From the web site it is also possible to e-mail factory headquarters. We welcome your questions, comments and feedback. Kramer Electronics Ltd. 3 Am VeOlamo Street. Jerusalem 95463, Israel Tel: (972-2)-654-4000. Fax: (972-2)-653-5369, E-mail: kramerel@netvision.net.il
