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1. Ross Video Limited VEA 7001A Precision Video Equalizing Amplifier with Clamping User Manual sit O o VEA TOOTA sde de ES al 3 E N MANIE E tn e EA joa 7 TO o 1 ug o E m o m D O gt as gt ES o 91 o IA ROSS Ross Part Number 7001 AD 004 Low Cool Practical Technology VEA 7001A e Precision Video Equalizing Amplifier with Clamping User Manual Ross Part Number 7001AD 004 Document Issue 04 Printing Date February 23 2006 Printed in Canada Software Issue N A The information contained in this User Manual is subject to change without notice or obligation Copyright 2006 Ross Video Limited All rights reserved Contents of this publication may not be reproduced in any form without the written permission of Ross Video Limited Reproduction or reverse engineering of copyrighted software is prohibited Notice The material in this manual is furnished for informational use only It is subject to change without notice and should not be construed as a commitment by Ross Video Limited Ross Video Limited assumes no responsibility or liability for errors or inaccuracies that may appear in this manual Trademarks ROSS e is a registered trademark of Ross Video Limited e Ross ROSS ROSS and MLE are registered trademarks of Ross Video Limited e All other product names and any registered and unregistered trademarks mentioned in this manual are u
2. Features The following features are unique to the VEA 7001A Precision Video Equalizing Amplifier with Clamping e Precision equalization of three selectable coaxial cable types up to 1 000 ft 305m e Easy single control equalization for fast installation e AC or DC input coupling e Eight outputs e Back porch clamping e Clamping speed jumper selectable e Delay matched for precise interchangeability e Delay adjustable if required for system timing e Superb stability of frequency response and color timing e Differential input for outstanding ground loop hum rejection e Excellent isolation between outputs e Power to each card is individually fused e 5 year transferable warranty Documentation Terms The following terms are used throughout this guide e Frame refers to the VFR 7214 VFR 7210 AVFR 7854C and AVFR 7855C frames that can house the VEA 7001A cards See the respective User Manuals for details e Operator and User both refer to the person who uses the VEA 7001A cards e Board Card and Module all refer to the VEA 7001A cards including all components e System refers to the mix of interconnected analog production and terminal equipment in which the VEA 7001A cards operate VEA 7001A User Manual Iss 04 Introduction e 1 3 1 4 e Introduction VEA 7001A User Manual Iss 04 Installation and Setup In This Chapter This chapter contains the following information se
3. The criteria for setting the coupling jumpers is as follows AC Use this setting if the back porch of the input signal is displaced from ground level by more than 0 5 Volts DC DC With this setting the entire amplifier becomes DC coupled Default setting Back Porch Clamping Set jumper JP4 to enable or disable back porch clamping ON Back porch clamping is active Default setting OFF Clamping is disabled Use this setting for any signals not having sync pulses for example non composite or component signals Clamping Speed If jumper JP4 is set to ON position set jumper JP3 to configure clamping speed as follows NORMAL This setting is used for normal back porch clamping to set the DC level of the back porch to ground level Use this setting unless there is a definite reason to use the FAST setting FAST This setting is used for fast back porch clamping Use this setting for any signals which require clamping in less than 22 lines This mode may be useful if the input signal is hard switched between two video signals with different DC offsets 2 2 e Installation and Setup VEA 7001A User Manual Iss 04 Cable Type Selection Set jumpers JP6 and JP7 to allow the operator to select the input cable type being equalized The two jumpers must both be positioned at only one of the selections Belden 8281 1694 or 1505 For other cable types choose the closest matching cable type from these three selections Board Installatio
4. anties are expressly limited to the duration of this warranty This RossGear VEA 7001A Precision Video Equalizing Amplifier with Clamping User Manual of our Analog Video Products line provides all pertinent information for the safe installation and operation of your RossGear Product Ross Video policy dictates that all repairs to the RossGear VEA 7001A are to be conducted only by an authorized Ross Video Limited factory representative Therefore any unauthorized attempt to repair this product by anyone other than an authorized Ross Video Limited factory representative will automatically void the warranty Please contact Ross Video Technical Support for more information In Case of Problems Should any problem arise with your RossGear VEA 7001A please contact the Ross Video Technical Support Department Contact information is supplied at the end of this publication A Return Material Authorization number RMA will be issued to you as well as specific shipping instructions should you wish our factory to repair your RossGear VEA 7001A A temporary replacement module if required will be made available at a nominal charge Any shipping costs incurred will be the responsibility of you the customer All products shipped to you from Ross Video Limited will be shipped collect The Ross Video Technical Support department will continue to provide advice on any product manufactured by Ross Video Limited beyond the warranty period without charge
5. components Input Signal Status Verify that source equipment is operating correctly and that a valid signal is being supplied Output Signal Path Verify that destination equipment is operating correctly and receiving a valid signal Module Exchange Exchanging a suspect module with a module that is known to be working correctly is an efficient method for localizing problems to individual modules Service Information e 4 1 Warranty and Repair Policy The RossGear VEA 7001A is warranted to be free of any defect with respect to performance quality reliability and workmanship for a period of FIVE 5 years from the date of shipment from our factory In the event that your RossGear VEA 7001A proves to be defective in any way during this warranty period Ross Video Limited reserves the right to repair or replace this piece of equipment with a unit of equal or superior performance characteristics Should you find that this RossGear VEA 7001A has failed after your warranty period has expired we will repair your defective product for as long as suitable replacement components are available You the owner will bear any labor and or component costs incurred in the repair or refurbishment of said equipment beyond the FIVE 5 year warranty period In no event shall Ross Video Limited be liable for direct indirect special incidental or consequential damages including loss of profits incurred by the use of this product Implied warr
6. ctions Static Discharge Unpacking Jumper Settings Board Installation Cable Connections Module Adjustment Static Discharge Whenever handling the VEA 7001A cards and other related equipment please observe all static discharge precautions as described in the following note Static discharge can cause serious damage to sensitive semiconductor devices Avoid handling circuit boards in high a AGI static environments such as carpeted areas and when wearing ESD synthetic fiber clothing Always exercise proper grounding Susceptibility precautions when working on circuit boards and related equipment Unpacking Unpack each VEA 7001A card you received from the shipping container and check the contents against the packing list to ensure that all items are included If any items are missing or damaged contact your sales representative or Ross Video directly VEA 7001A User Manual Iss 04 Installation and Setup e 2 1 Jumper Settings Use the following figure card labeling and discussions to setup VEA 7001A jumpers JP3 JP4 JP1 8 JP2 Clamping Back Porch AC or DC Speed Clamping Input Coupling Selection Selection Selection 7 Diet in je INV dN 10 03 0301A Ps e JP6 amp JP7 Input Cable Type Selection Figure 2 VEA 7001A Jumper Locations Input Coupling Set jumpers JP1 and JP2 to determine input AC or DC voltage coupling The two jumpers must both be positioned on their AC or DC pin settings
7. for the life of this equipment 4 2 e Service Information VEA 7001A User Manual Iss 04 Ordering Information In This Chapter This chapter contains ordering information for the VEA 7001A and related products VEA 7001A Video DA and Related Products Standard Equipment e VEA 7001A Precision Video Equalizing Amplifier with Clamping Optional Equipment e 7001AD 004 Precision Video Equalizing Amplifier with Clamping User Manual additional User Manual e VFR 7214 Video Products Frame and Power Supply PS 7103 1 RU holds 4 modules includes 1 power supply e VFR 7210 Video Products Frame and Power Supply PS 7103 2 RU holds 10 modules includes 1 power supply e AVFR 7854C Analog Products Frame and Power Supply PS 7103 1RU holds 2 audio and 2 video modules includes 1 power supply e AVFR 7855C Analog Products Frame and Power Supply PS 7103 2RU holds 5 audio and 5 video modules includes 1 power supply e PS 7103 Power Supply 85 250 Volts e EXT 7200 Extender Board module servicing extension e FSB 7110 Frame Support Bracket module servicing extension Your VEA 7001A Video Equalizing Amplifier is part of the RossGear family of products Ross Video Limited offers a full line of RossGear terminal equipment including distribution conversion monitoring synchronizers encoders decoders AES keyers control switchers as well as analog audio and video products VEA 7001A User Manual Iss 04 Ordering Informatio
8. ing Designations for RossGear 7200 and 7850 Series Frames VEA 7001A User Manual Iss 04 Installation and Setup e 2 3 Module Adjustment Use the following figure card labeling and discussions to set up VEA 7001A performance characteristics Pd whe x A C q 7 T CLAMPING ade sea edie wt po i L o SI JOFF gt Er all O otf it c ws T i E ES R g cv1 f Sate ar corsototi Delay A 1000 FT E 4 gt OPERAN Adjustment q 19 E o moro 2 Wi o IP zoota 0024 155 4 E RV3 Equalization Adjustment Figure 4 VEA 7001A Module Adjustments Gain and Equalization To adjust gain and equalization set RV7 gain and RV8 equalization as required for your system and cable length Use any suitable test signal that would enable the signal gain and subcarrier level to be correctly set e g pulse and bar or color bar A sweep signal can be used but is not normally necessary Delay The CV1 delay adjustment is factory set to ensure that the path length of every VEA 7001A is precisely matched The 7001A is factory calibrated to have a delay of 24 0ns This allows for maximum interchangeability of VEA 7001A cards without affecting system timing Changing from the factory setting will make this card non interchangeable due to differences in delay However if desired and interchangeability is not important the timing adjustment CV1 may be used to resolve minor system timing problems 2 4 e Installat
9. ion and Setup VEA 7001A User Manual Iss 04 Specifications In This Chapter This chapter contains the VEA 7001A Technical Specifications table VEA 7001A Technical Specifications Number of Inputs 1 looped Common Mode Rejection 60dB 60Hz Number of Outputs Output Impedance 750 Output Return Loss 44dB to 5MHz Output Isolation 43dB to 5MHz DC Offset lt 30mV Output Loading per termination at 10MHz 0 005dB VEA 7001A User Manual Iss 04 Specifications e 3 1 Category Parameter Specification Gain Range 3dB Gain Stability lt 0 1 per 10 C Frequency Response 0 02dB to 10MHz cable EQ 0 ft Bandwidth 3dB 36MHz Line Rate Window Tilt lt 0 2 Field Rate Window Tilt lt 0 2 all outputs loaded Bounce black to whit Differential Gain 10 90 APL lt 0 1 Differential Phase 10 90 APL lt 0 1 sans GIC NTSC 38 PAL E lizati Response Accuracy 0 03dB to 8MHz 0 1000 0 305m Aualizarion for all supported cable types typically 0 08dB 10MHz R Ti 6 lines Clamp on FAST PA 22 lines Clamp on NORM Clampin ping Hum Rejection Normal Mode 6dB Hum Rejection Fast Mode 30dB Specifications are subject to change without notification 3 2 e Specifications VEA 7001A User Manual Iss 04 Service Information In This Chapter This chapter contains the following sections Troubleshooting Checklist Warranty and Repair Policy Troub
10. ked by Ross Video s experience in engineering and design expertise since 1974 You will be pleased at how easily your new VEA 7001A fits into your overall working environment Equally pleasing is the product quality reliability and functionality Thank you for joining the worldwide group of satisfied Ross Video customers Should you have a question pertaining to the installation and operation of your VEA 7001A please contact us at the numbers listed on the back page of this publication Our technical support staff is always available for consultation training or service VEA 7001A User Manual Iss 04 Introduction e 1 1 Overview The unique RossGear VEA 7001A Precision Video Equalizing Amplifier with Clamping precisely and easily equalizes your choice of three popular coaxial cable types Belden 8281 1694 or 1505 This 3 cable type selection ability is achieved to a level of accuracy never before obtained in a single amplifier All other amplifiers on the market are designed primarily for one type of cable and usually achieve mediocre results with other cable types or require complex and time consuming adjustment procedures During installation the setting of a single adjustment is all that is needed to obtain unparalleled equalization accuracy thanks to very accurate factory calibration The need to use elaborate frequency response measuring equipment in the field is eliminated Surface Mount Technology has been used in the manufact
11. leshooting Checklist Routine maintenance to this RossGear product is not required In the event of problems with your VEA 7001A the following basic troubleshooting checklist may help identify the source of the problem If the module still does not appear to be working properly after checking all possible causes please contact your Ross Video products distributor or the Ross Video Technical Support department at the numbers listed under the Contact Us section at the end of this manual Ross Video Ltd is committed to providing a superior customer experience please contact us with any questions you may have about your VEA 7001A 1 VEA 7001A User Manual Iss 04 Visual Review Performing a quick visual check may reveal many problems such as connectors not properly seated or loose cables Check the module the frame and any associated peripheral equipment for signs of trouble Power Check Check the power indicator LED on the distribution frame front panel for the presence of power If the power LED is not illuminated verify that the power cable is connected to a power source and that power is available at the power main Confirm that the power supplies are fully seated in their slots If the power LED is still not illuminated replace the power supply with one that is verified to work Reseat the Card in the Frame Check Control Settings Refer to the Installation and Operation sections of the manual and verify all user
12. may have to take adequate measures Notice Maintenance User Serviceable Parts Routine maintenance to this RossGear product is not required This product contains no user serviceable parts If the module does not appear to be working properly please contact Technical Support using the numbers listed under the Contact Us section on the last page of this manual All RossGear products are covered by a generous 5 year warranty and will be repaired without charge for materials or labor within this period See the Warranty and Repair Policy section in this manual for details Environmental Information The equipment that you purchased required the extraction and use of natural resources for its production It may contain hazardous substances that could impact health and the environment To avoid the potential release of those substances into the environment and to diminish the need for the extraction of natural resources Ross Video encourages you to use the appropriate take back systems These systems will reuse or recycle most of the materials from your end of life equipment in an environmentally friendly and health conscious manner The crossed out wheeled bin symbol invites you to use these systems If you need more information on the collection reuse and recycling systems please contact your local or regional waste administration You can also contact Ross Video for more information on the environmental performances of our pr
13. n Use the following steps to install the VEA 7001A cards in a RossGear 7200 series video or 7850 series A V distribution frame 1 Refer to the User Manual of the RossGear frame to ensure that the frame is properly installed according to instructions If this module is to be installed in any compatible frame other than a Ross Video product refer to the frame manufacturer s manual for specific instructions 2 Please note that heat and power distribution requirements within a frame may dictate specific slot placement of cards Cards with many heat producing components should be arranged to avoid areas of excess heat build up particularly in frames using convectional cooling 3 After selecting the desired frame installation slot hold the VEA 7001A card by the edges and carefully align the card edges with the slots in the frame Then fully insert the card into the frame until the rear connection plug is properly seated Cable Connections The following diagram provides instruction for connecting input and output coax cables to the VEA 7001A when mounted in RossGear 7200 series Video and 7850 series A V distribution frames It is recommended that all unused outputs be terminated The specifications in this manual are based on all outputs being terminated Video In Loop Video In Loop Video Out 1 Video Out 2 Video Out 3 Video Out 4 Video Out 5 Video Out 6 Video Out 7 Video Out 8 Figure 3 VEA 7001A Cabl
14. n e 5 1 Notes 5 2 e Ordering Information VEA 7005A User Manual Iss 01 Notes VEA 7001A User Manual Iss 04 Ordering Information e 5 3 Contact Us Contact our friendly and professional support representatives for the following e Name and address of your local dealer e Product information and pricing e Technical support e Upcoming trade show information General Business Office and Technical Support PHONE After Hours Emergency Fax E MAIL General Information Technical Support Ross Video Limited POSTAL SERVICE Ross Video Incorporated Visit Us Please visit us at our website for e Company information 613 e 652 e 4886 613 e 349 e 0006 613 652 e 4425 solutions rossvideo com techsupport rossvideo com 8 John Street Iroquois Ontario Canada KOE 1K0 P O Box 880 Ogdensburg New York USA 13669 0880 e Related products and full product lines e On line catalog e Trade show information e News e Testimonials NANA Ago sisvideo com
15. oducts eS Contents Introduction Th This Chapter re ion lia lod A Word of Thanks isa iaia OVEIVIEW nali sa a e Ee deta Functional Block Diagram irei Features he IL a a Do DOR da aaa Ea Sts e Documentation Terms coco noconnccnos Installation and Setup In This Chapter Oi OL Static DIScharge ossia nails Viale da Unpaid nile dad Jumper Seti ii rs Board Installation noo Cable Connections iii i Module Adjustment nono nncnnnos Specifications In This Chapter aa VEA 7001A Technical Specifications Service Information In This Chapter scenes ob Liliana Troubleshooting Checklist ia Warranty and Repair Policy ia Ordering Information In ThisChapters circa ia VEA 7001A Video DA and Related Products VEA 7001A User Manual Iss 04 Contents e i ii e Contents VEA 7001A User Manual Iss 04 Introduction In This Chapter This chapter contains the following information sections e A Word of Thanks e Overview e Functional Block Diagram e Features e Documentation Terms A Word of Thanks Congratulations on choosing the Ross Video VEA 7001A Precision Video Equalizing Amplifier with Clamping The VEA 7001A is part of a full line of Analog Products within the RossGear Terminal Equipment family of analog and digital products bac
16. or or minor equipment damage or a situation which could place the equipment in a non compliant operating state This symbol is used to alert the user that an electrical or electronic device or assembly is susceptible to damage from an ESD event Important Safety Instructions gt O aution Wa Si 5 gt Warning This product is intended to be a component product of the RossGear 8000 series frame Refer to the RossGear 8000 series frame User Manual for important safety instructions regarding the proper installation and safe operation of the frame as well as it s component products Certain parts of this equipment namely the power supply area still present a safety hazard with the power switch in the OFF position To avoid electrical shock disconnect all A C power cords from the chassis rear appliance connectors before servicing this area Service barriers within this product are intended to protect the operator and service personnel from hazardous voltages For continued safety replace all barriers after any servicing This product contains safety critical parts which if incorrectly replaced may present a risk of fire or electrical shock Components contained within the product s power supplies and power supply area are not intended to be customer serviced and should be returned to the factory for repair To reduce the risk of fire replacement fuses must be the same type and rating Only use attachments acces
17. sed for identification purposes only and remain the exclusive property of their respective owners Important Regulatory and Safety Notices Before using this product and any associated equipment refer to the Important Safety Instructions gt listed below so as to avoid personnel injury and to prevent product damage Products may require specific equipment and or installation procedures be carried out to satisfy certain regulatory compliance requirements Notices have been included in this publication to call attention to these Specific requirements Symbol Meanings e Warning gt O D c O 5 gt Z O O D apy Susceptibility This symbol on the equipment refers you to important operating and maintenance servicing instructions within the Product Manual Documentation Failure to heed this information may present a major risk of damage or injury to persons or equipment The symbol with the word Warning within the equipment manual indicates a potentially hazardous situation which if not avoided could result in death or serious injury The symbol with the word Caution within the equipment manual indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury It may also be used to alert against unsafe practices The symbol with the word Notice within the equipment manual indicates a situation which if not avoided may result in maj
18. sories specified by the manufacturer EMC Notices US FCC Part 15 This equipment has been tested and found to comply with the limits for a class A Digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case users will be required to correct the interference at their own expense Changes or modifications to this equipment not expressly approved by Ross Video Ltd could void the user s authority to operate this equipment Notice CANADA This Class A digital apparatus complies with Canadian ICES 003 Cet appareil numerique de classe A est conforme a la norme NMB 003 du Canada EUROPE This equipment is in compliance with the essential requirements and other relevant provisions of CE Directive 93 68 EEC INTERNATIONAL This equipment has been tested to CISPR 22 1997 along with amendments A1 2000 and A2 2002 and found to comply with the limits for a Class A Digital device This is a Class A product In domestic environments this product may cause radio interference in which case the user
19. ure of this card to further eliminate the need for field adjustments Back porch clamping is provided to assist in the removal of hum or other signal disturbances Two clamping speeds are jumper selectable A differential input gives excellent ground loop rejection The amplifier input may be AC or DC coupled Temperature drift effects are almost non existent due to the use of the latest in analog ASIC s combined with meticulous product engineering The VEA 7001A card is designed for use in the RossGear 7200 series video and 7850 series A V distribution frames The power to each card is individually fused to prevent failure of any one card from affecting the rest of the cards in the frame RossGear analog and digital cards are also designed to fit into distribution frames of some other manufacturers for installation flexibility Ross Video Limited is pleased to offer the flexibility of selectable three cable type precision equalization within a single card slot The VEA 7001A fills a unique role within the full line of RossGear video distribution products engineered to satisfy the highest quality broadcast standards and the most demanding requirements of your facility Functional Block Diagram OUTPUTS COUPLING CABLE TYPE O AC O O 2 O 3 4 EQUALIZER 5 6 BACK PORCH GAIN EQ 7 3 dB O 1000 FT 8 Figure 1 Simplified Block Diagram of VEA 7001A Functions 1 2 e Introduction VEA 7001A User Manual Iss 04

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