Kramer Electronics VP-10
Contents
1. AC coupling If the amplifier is used for proper RGBHV signals RGB are amlog H amp V are TTL level then the AC DC switches should be used if needed only for the RGB signals The H amp V should always remain in the DC position pressecin The default state of those buttons should be at DC coupling pressed in Only if there are problems signals are too dark too bright looking burned or distorted toggle the AC DC switches of the RGB channels only into the AC position released 6 3 Handling signal losses High resolution RGBHV VGA XGA signals are very sensitive to cable length and quality Long and or low quality cables tend to degrade the signal quality resulting in image smear and fine detail loss as well as signal level attenuation The VP 10 15 18 allow the user to handle and correct those problems using the built in amplifiers Using high quality cables of 2 4 meter length will not require adjustment even when the signals involved are UXGA signals 1600x1200 resolution Even with the best available cables at SXGA resolution 1280x1024 or UXGA resolution there might be apparent signal depreciation at over five meters In low quality cables those high resolution signals will be affected at distances even shorter KRAMER ELECTRONICS LTD Page 10 KRAMER than one meter The VP 10 15 18 have two sets of user adjustable controls each set effecting 5 outputs simultaneously besides the sets for outputs 16 18 ef2. AMER ELECTRONICS LTD Page 9 KRAMER termination switches should always be at 75Ohm to maintain wel matched video line of 75Ohm impedance from first to last amplifier Note that if looping function is not used the termination switch should be set to 75 Ohm Note If TTL level Syncs H amp V are used then all termination switches related to the Horizontal and Vertical inputs including the last machine s switches should be in the Hi z position 4 If looping is not used connect an RGBHV monitor if needed to the loop connectors of the amplifier 5 Connect RGBHV acceptors to the outputs of the amplifier taking care to connect the RED output of the amplifier to the RED input of the acceptor GREEN to GREEN etc Use equal length cables for all signals 6 Operate the amplifier source and acceptors 7 Adjust if needed the level control and the cable EQ control As described in section 6 3 handling signal losses 6 2 VP 10 15 18 Preset In order to use the WP 10 15 18 efficiently the machine should be preset to the required application The input coupling can be selected by the user to be either AC or DC In general if the source is of high quality and conforms to the standards then DC coupling should be selected on all inputs by pressing m the relevant buttons DC coupling If however the source is a nomstandard source the signals may ride on DC offset voltages In this case the AC DC buttons should be released
3. KRAMER Kramer Electronics Ltd USER MANUAL RGBHV Distribution Amplifiers Models VP 10 VP 15 VP 18 IMPORTANT Before proceeding please read paragraph entitled Unpacking and Contents KRAMER ELECTRONICS LTD KRAMER Table Of Contents Section Name 1 INTRODUCTION 1 1 A Word on VGA XGA RGBHV Distribution Line Amplifiers 1 2 Handling Graphics Signals 1 3 Factors Affecting Quality of Results 2 HOW DOIGET STARTED 3 UNPACKING AND CONTENTS 3 1 Optional Accessories 4 RGBHV DISTRIBUTION AMPLIFIER 4 1 Getting to know your VP 10 15 18 Distribution Amplifier 5 INSTALLATION 5 1 Rack Mounting 5 2 Connecting to RGBHV Devices 6 USING THE AMPLIFIER 6 1 Typical Application 6 2 VP 10 15 18 preset 6 3 Handling signal losses 6 4 Other Uses 7 SPECIFICATIONS 8 TROUBLESHOOTING 8 1 Power and Indicators 8 2 RGBHV Signal Limited Warranty List Of Illustrations Figure Description 1 VP 10 15 18 Front Rear Panel Features List Of Tables Table Description 1 VP 10 15 18 Front Rear Panel Features KRAMER ELECTRONICS LTD age jas SOOO OOANANDAD NNW WW Pg eee ee e BRWNNNF CO Page Page Page 2 KRAMER 1 INTRODUCTION Congratulations on your purchase of this Kramer RGBHV Distribution 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 a
4. 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 KRAMER ELECTRONICS LTD Page 14 KRAMER 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 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 caused by defects in this product damages based upon 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 incident
5. al 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 NOTICE 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 industry environment CFR 47 FCC Rules and Regulations Part 15 Radio frequency devices Subpart B Unintentional radiators CAUTION D 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 D gt Use the supplied DC power supply to feed power to the machine D gt Please use recommended interconnection cables to connect the machine to other components KRAMER ELECTRONICS LTD Page 15 KRAMER KRAMER 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 feedba
6. ck 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
7. create other problems which result from their failure to accurately match the system s required impedance The result of this especially at high frequencies is shadows or ghosts on the image resulting from standing waves and electronic KRAMER ELECTRONICS LTD Page 4 KRAMER reflections running back and forth between transmitter and receiver Another aspect to consider is the sync As sync signals are logic signals which are not treated as analog signals the receiver does not terminate the line and therefore the line is not matched A host of problems can occur when sync signals are sent over long unterminated unmatched cables The result might be image breakdown or distortion due to improper sync information The amplifier that drives the analog section of the graphics data should also be able to buffer recover and send the sync information in such a way that it is received properly at the receiving end 1 3 Factors Affecting Quality of Results There are many factors affecting the quality of results when signals are transmitted from a source to an acceptor XX Connection cables Low quality cables are susceptible to interference they degrade signal quality due to poor matching and cause elevated noise levels They should be of the best quality B gt Sockets and connectors of the sources and acceptors So often ignored they should be of highest quality since Zero Ohm connection resistance is the target Sockets a
8. d or interrupted by very strong external electromagnetic interference it should return and stabilize when such interference ends If not disconnect power from the machine and reconnect again to reset the machine 2 If the recommended actions still do not result in satisfactory operation please consult your KRAMER Dealer 8 1 Power and Indicators No Power Confirm that rocker switch is in ON position and the lamp within the switch is illuminated Confirm that power connections are secured at the amplifier and at the receptacle Make sure the receptacle is active outputting the proper mains voltage If there is still no power check the fuse Remove power cord from the AC outlet and from the machine and then using a flat head screwdriver remove the fuse holder located directly below the power connector Confirm that the fuse is good by looking at the wire connected to the ends of the fuse If the wire is broken replace the fuse with another with the same value KRAMER ELECTRONICS LTD Page 12 KRAMER 8 2 RGBHV Signal No signal at the output device regardless of input selected Signal level is too high or too dim Noise bars roll up or down in the output image or Low Frequency Hum in the output signal KRAMER ELECTRONICS LTD 2 3 Confirm that your sources and output devices are powered on and connected properly Video signals at the input and output of your amplifier should be of an ident
9. ecting between devices should be of equal length R G B cables between an RGBHV source and the amplifier should be equal in length and so should be the output cables 6 USING the Amplifier 6 1 Typical Application Computer based graphics is used in video production in presentation applications for education purposes and more It is frequently necessary to distribute PC graphics from one source to several local and or remote acceptors Perform the following steps 1 Preset the machine according to the description in section 6 2 2 Connect an RGBHV or VGA XGA source via a VGA to RGBHV cable or adapter to the inputs of the amplifier taking care to connect the RED output of the source to the RED input of the amplifier GREEN to GREEN etc Use equal length cables for all signals 3 The looping function enables the operator to extend the number of outputs per input The following example describes looping performed by using 3 amplifiers with one input and 18 outputs each An RGBHV signal reaches inputs of amplifier No 1 From the appropriate looping connectors of amplifier No 1 a cable is connected to the appropriate input sockes of amplifier No 2 The loop outputs of amplifier No 2 are connected to the input sockets of amplifier No 3 By this way the input signal is divided into 54 separate output signals The operator must always switch the termination switches of all the amplifiers but the last to Hi z The last amplifier s KR
10. fecting only three outputs which should be used as following 1 6 4 If you see a signal detail loss resulting in image smear and blurring on the screen carefully turn the EQ control trimmers clockwise until the lost details reappear and the original resolution is resumed These control trimmers gradually compensate for the losses incurred within the cable due to its design or length All the relevant RGB channels should be tuned similarly otherwise cobr aberrations might appear Bear in mind though that beyond a certain distance dictated by the cable stray capacitance a measure of cable quality losses cannot be completely recovered In this case it is advised that a lower graphics resolution should be chosen or the cable should be replaced with a better one If the whole signal is attenuated the image on the screen will become darker In this case carefully tune the LEVEL control trimmers clockwise All the relevant RGB channels should be tuned similarly otherwise image hue and brightness might be badly affected Overdoing these controls will result in image burnout and might damage the signal receiver therefore adjusting these controls should be done very carefully Between the EQ controls that should be adjusted first and the LEVEL controls much of the lost signals may be restored Other Uses The VP 10 15 18 use almost identical 5 independent channels The VP 18 for example can be used as 5 independent 1 18
11. ical signal format at the output of your source Confirm that any other amplifiers in the signal path have the proper input and or output selected Verify that the lines are well matched through 75Ohm impedances otherwise it results in a video level that is too high or too dim Confirm that the connecting cables are of high quality and properly inserted Check level controls on your source input device or output display Hum bars ground loop are caused by a difference in the ground potential of any two or more devices connected to your signal path This difference is compensated by passing that voltage difference through any available interconnection including your cables WARNING Do not disconnect the ground from any piece of equipment in the signal path Check the following to remove hum bars Confirm that all interconnected equipment is connected to the same power phase if possible Remove equipment connected to that phase that may introduce noise such as motors generators etc Disconnect all interconnecting cables and reconnect them one at a time until the ground loop reappears Disconnect the affected cable and replace or insert an isolation transformer in the signal path Page 13 KRAMER 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 fr
12. mind though that the human eye can resolve only a few thousands colors The more detailed the image higher resolution and the higher the color depth the more real the image will look The highest resolution of standard VGA was 640x480 pixels with 4 bits of color 16 colors Standard VGA was able to use more colors 256 but at a lower very crude resolution of about 320x200 pixels Common resolutions used today for computer graphics vary from 1024x768 up to 2000x1600 pixels with high color 16 bits of color representing 64 000 different colors up to true color 24 bits or more representing from 16 7 million colors up to several billion Displaying such a detailed and colorful image on the screen e g writing so many pixels on the screen in real time needs enomous graphics memory per frame as well as very high speeds Amplifiers that carry those signals must be able to handle those speeds and signal bandwidths Standard VGA at 640x480 resolution needed amplifiers with 20 30MHz bandwidth At 1600x1200 or even at 1280x1024 S XGA those amplifiers fail completely In order to faithfully amplify and transmit modern highresolution graphics amplifiers with bandwidths of 300 MHz and more are needed Those amplifiers besides the enormous bandwidth they handle need to be linear to have very low distortion and to be stable Stability of an amplifier is its ability to avoid bursting into uncontrolled oscillation which is in ad
13. n a standard 12VDC source and is therefore perfectly suitable for fieldwork L VP 88 For switching and routing several RGBHV sources and acceptors The machine is a high performance 8x8 RGBHV Balanced Stereo Audio matrix switcher for high resolution video VGA XGA and balanced stereo audio signals It is a true matrix routing any input to any or all outputs simultaneously Since the VP 88 can switch during the vertical interval transitions are glitch free when sources share a common reference sync The VP 88 is the largest in the line of RGBHV Audio matrices which includes the VP 84 8x4 VP 82 8x2 VP 66 6x6 VP 64 6x4 and the VP 44 4x4 all similar in performance There are many updated features on this KRAMER ELECTRONICS LTD Page 6 KRAMER popular design including audio breakaway which provides the ability to switch audio independently from video Eight preset memory locations are provided for quick access to common configurations In addition the TAKE button allows the user to place multiple switches in a queue and then activate them with one touch of this button There are three ways to control the VP 88 front panel buttons RS 232 and RS 485 It is dependable rugged and fits in three vertical spaces of a standard 19 rack 3U Video bandwidth of 300MHz ensures that the VP 88 remains transparent even in the most critical applications 4 RGBHV DISTRIBUTION AMPLIFER This section describes the controls and connectio
14. nd connectors must also match the required impedance 75ohm in video Cheap low quality connectors tend to rust thus causing breaks in the signal path B gt Amplifying circuitry Must provide quality performance when the desired end result is high linearity low distortion and low noise operation B gt Distance between sources and acceptors Plays a major role in the final result For long distances of over 15 meters 2 to 3 meters for VGA XGA between sources and acceptors special measures should be taken in order to avoid cable losses These include using higher quality cables or adding line amplifiers E Interference from neighboring electrical appliances They can have an adverse effect on signal quality Balanced audio lines are less prone to interference but unbalanced audio should be installed far from any mains power cables electric motors transmitters etc even when the cables are shielded 2 HOW DO I GET STARTED The fastest way to get started is to take your time and do everything right the first time Taking 15 minutes to read the manual may save you a few hours later You don t even have to read the whole manual If a section doesn t apply to you you don t have to spend your time reading it KRAMER ELECTRONICS LTD Page 5 KRAMER 3 UNPACKING AND CONTENTS The items contained in your Kramer distributor package are listed below Please save the original box and packaging materials for possible future shipmen
15. ns of your amplifier Understanding the controls and connections helps you realize the full power of your machine 4 1 Getting to Know Your VP 10 15 18 Distribution Amplifier The KRAMER VP 10 VP 15 and VP 18 are three distribution amplifiers 1 10 1 15 1 18 for video component video and graphics signals RGBHV of the highest quality Each machine can function as a single 1 10 15 18 RGBHV distribution amplifier or as five independent 1 10 1 15 or 1 18 video distribution amplifiers All channels have looping capability for system expansion and two VP 18 amplifiers can form for example one 1 36 RGBHV DA All inputs may be selected for DC or AC coupling and terminated to 75 ohm using front accessible switches Each set of 5 outputs has front accessible LEVEL and EQ trimmers The machines have video bandwidth exceeding 350 MHz and are housed in 19 inch wide 3U enclosures for easy rack installation KRAMER ELECTRONICS LTD Page 7 KRAMER 1 18 RGBHV Distribution Amplifier vP 18 OUTPUTS ouTPUTS OUTPUTS ouTPUTS G0 GOOOOOOCO 000000000 01OSOOOOOOO OOOCO DOCS OP COOOOOOOCOCCOCOCCO 00000000000000000000 906600000000000 0000 7 Figure 1 VP 10 15 18 Front Rear Panel Features SERIAL Table 1 VP 10 15 18 Front Rear Panel Features Feature Function Power Switch Illuminated switch Supplies power to the unit Gain EQ Control trimme
16. om 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 has been defaced modified or removed 3 Damage deterioration or malfunction resulting from a Accident misuse abuse neglect fire water lightning or other acts of nature b Product modification or failure to follow instructions supplied with the product c Repair or attempted repair by anyone not authorized by Kramer d Any shipment of the product claims must be presented tothe carrier e Removal or installation of the product f Any other cause which does not relate to a product defect g 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
17. round the world In recent years Kramer has redesigned and upgraded most of the line making the best even tetter Kramer s line of professional video audio electronics is one of the most versatile and complete available and is a true leader in terms of quality workmanship price performance ratio and innovation In addition to the Kramer line of high quality RGBHYV Distribution Amplifiers such as the one you have just purchased Kramer also offers a full line of high quality line amplifiers switchers processors interfaces controllers and computer related products This manual includes configuration operation and option information for the VP 10 VP 15 VP 18 amplifiers all similar in function and structure The VP 18 amplifier will be described but the others are similar except in their number of outputs 1 1 A Word on VGA XGA RGBHV Distribution Line Amplifiers VGA XGA RGBHV distribution amplifiers distribute one or more signals to several users They vary in the number of inputs looping capability programming capability number of outputs operating format bandwidth and input output coupling VGA XGA RGBHV distribution amplifiers are used to distribute one source to several acceptors wide screen projectors format converters etc for simultaneous recording or monitoring of one source with no discernible signal degradation These machines excel in very large bandwidth some approaching 400Mhz and very good linearity making them
18. rs Adjust output levels and cable EQ AC DC selection switches 16 LOOPBNCs s amp Loop connectors for DA extension 7 OUTPUT BNCs RGBHV output connectors POWER connector A 3 prong AC connector allows power to be supplied to the unit Directly underneath this connector a fuse holder houses the appropriate fuse KRAMER ELECTRONICS LTD Page 8 KRAMER 5 INSTALLATION 5 1 Rack Mounting Each of the amplifiers included in this manual may be rack mounted in a standard 19 3U EIA rack assembly and includes rack ears at the ends of the front panel These devices do not require any specific spacing above or below the unit for ventilation To mount any of the amplifiers simply place the unit rack ears against the rack rails of your rack and fasten with standard screws through each of the four corner holes in the rack ears It is recommended to use plastic washers to protect the panel from scratching 5 2 Connecting to RGBHV Devices RGBHV video sources and output devices such as monitors projectors etc may be connected to the amplifiers through the BNC type connectors located on the back of the units Unused inputs are terminated to 75ohm and active inputs should be terminated at the connecting source Please keep in mind that the output signal format will match that of the input signal format Example If input is composite then output is composite All signal connections that use more than one cable interconn
19. t Distribution Amplifier Power Cord This User Manual Kramer Concise Product Catalog or CD Rubber Feet 3 1 Optional Accessories 0 D O D O The following accessories which are available from Kramer can enhance implementation of your machine For information regarding cables and additional accessories contact your Kramer dealer UL VP 103 Converts from VGA XGA HD15 connector to RGBHV on BNCs The machine is a high performance VGA XGA UXGA to BNC converter which allows a single VGA XGA UXGA source to simultaneously drive a local monitor and up to two compatible large display devices Many projectors and large monitors use BNC connectors rather than the multipin D connectors found on computers The VP 103 solves this physical incompatibility and also provides the local monitor loop through and the necessary buffering amplification and sync processing for remote acceptor applications Note that the VP 103 does not perform any scan rate conversion The VP 103 will accept all typical VGA modes such as VGA SVGA XGA SXGA and UXGA and will output RGsB RGBS or RGBHV Video bandwidth of 315 MHz ensures transparent operation at multiple resolutions including XGA For applications not requiring a local monitor a front panel termination switch is provided eliminating the need for external termination plugs The machine provides Level and Cable Equalization from easy access front panel controls The VP103 is rugged dependable and runs o
20. usable for even the highest graphics standards A good quality distribution amplifier amplifies the incoming signal may pre compensate the signal for potential losses resulting from the use of long cables noisy sources etc and generates several identical buffered and amplified outputs The front panels of these Kramer amplifiers are designed to be simple to operate Typical applications of the machines are computer graphics distribution in classes point of sale and multimedia studios displaying computer graphics before large audiences using the data input of a wide screen video projector 1 2 Handling Graphics Signals A computer generated graphics signal usually comprises 5 signals Red Green Blue which are analog level signals and two TTL logic level signals Horizontal Sync and Vertical Sync Digital graphics cards and monitors use a different signal format and will not be discussed here Computer graphics resolution is measured in pixels and signal bandwidth The more pixels picture elements on the screen the more detailed the image VGA SVGA XGA S XGA and U XGA are terms describing graphics resolution and color depth Color depth represents the maximum number of simultaneously displayed colors on KRAMER ELECTRONICS LTD Page 3 KRAMER the screen and is measured in bits 24 and 32 36 bits of color depth represent millions to billions of color shades available on the screen at any given moment It should be born in
21. verse relationship to the speed it can handle The tendency to oscillate is further increased by the load impedance The load impedance of a system is usually not just a resistor A cable connected to an amplifier leading to the receiver or monitor may present a capacitive and or an inductive load to the amplifier This is the main cause of instability The quality problems of a load or cable may severely degrade the bandwidth linearity and stability of the amplifier and in general its ability to faithfully reproduce the signal Cables also affect image resolution Longer cables due t their imperfections cause high frequency deterioration and hence image smear and loss of resolution In computer graphics especially this adverse effect is very much accentuated Amplifiers should therefore cope with an additional task compensating for cable losses up to the maximum useful operation distance High resolution graphics systems should use very high quality cables for image transmission The cables should be shielded to eliminate externally induced interference but the shield might itsdf increase the capacitance of the cable and therefore cause deterioration in the image s resolution and clarity Standard quality cables can only be a few meters long For longer distances compound cable is replaced by five individual coax cables which are bulky and cumbersome for use Even then the distance is limited to several tens of meters Cables may
22. video distribution amplifiers using the RED channel for one source the GREEN channel for the other source and so on The machine can be used for example as a 1 18 Video Component DA using the RED GREEN and BLUE channels for Y R Y and B Y and at the same time as a 1 18 s Video DA using the H and V channels for Y and C As the machine has 5 identical very high bandwidth independent channels they can be used for any demanding video distribution application even for short range up to 20 meters SDI distribution KRAMER ELECTRONICS LTD Page 11 KRAMER 7 SPECIFICATIONS INPUTS Analog Red Green Blue signals 0 7 Vpp 75 Q H amp V syncs TTL or analog level on BNC connectors with termination switches and AC DC input coupling selection switches OUTPUTS 10 15 18 sets of analog Red Green Blue signals 0 7 Vpp 75 Q H amp V syncs TTL or analog level on BNC connectors with termination switches and AC DC input coupling selection switches BANDWIDTH 360 MHz 3cB CROSSTALK 65 dB VIDEO S N RATIO 71 GB DIFF GAIN 0 12 DIFF PHASE 0 15 Deg K FACTOR lt 0 05 CONTROLS Output Level 1 4 to 1 7 dB EQ 0 to 2 3 dB 5 MHz for sets of 5 outputs DIMENSIONS 19 inch W 7 inch D 3U H rack mountable POWER SOURCE 230 VAC 50 60 Hz 115 VAC U S A 7 VA max WEIGHT 6 kg 13 2 Ibs Approx ACCESSORIES Power cord 8 TROUBLESHOOTING NOTES 1 Please note that if the output signal is disturbe
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