Amplifier - Ross Video
Contents
1. Ross Gear A Tie Wrap Audio Cable Polarity Indications without cable Connector End View Figure 4 Connector Wiring for TDA 7891 Inputs and Outputs Insert a wire into the designated polarity slot on the connector Use a tweaker screwdriver to tighten the corresponding screw on the underside of the connector Repeat steps and 2 for each wire on each connector Secure the cable to the connector with a tie wrap Once the cables have been wired to the connectors install the connectors to the sockets on the RossGear frame so that the slotted tongue fits in the grooves on the frame s mating connector TDA 7891 User Manual Iss 01 2 4 e Installation and Setup Specifications In This Chapter This chapter contains the following section e TDA 7891 Technical Specifications TDA 7891 User Manual Iss 01 Specifications e 3 1 TDA 7891 Technical Specifications Table 1 TDA 7891 Specifications Category Parameter Specification CEI e aao O CIS I Electrical Length 16ns Typical Max Output Amplitude 12 25Vp p Gain Range 3dB Gain Stability lt 0 1 per 10 C at 10MHz RE sos 0 03 0 08dB 20Hz to 100kHz all outputs 0 25dB 0 1 to 20MHz terminated into 10kQ Bandwidth 32MHz 3 dB Typical Noise RMS unweighted 0 5MHz 56dB THD N 30kHz Bandwidth 8dBm input 0 05 Specifications are subject t2. Ross Video Limited TDA 7891 Timecode Distribution Amplifier User Manual Cool Practical Technology Ross Part Number 7891D 004 Issue 01 TDA 7891 e Timecode Distribution Amplifier User Manual Ross Part Number 7891D 004 Document Issue 01 Printing Date January 24 2006 Printed in Canada Software Issue N A The information contained in this User Manual is subject to change without notice or obligation Copyright O 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 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 used 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 Safet
3. below for potentiometer location The potentiometer provides a fine control of the gain and has a range of 3dB RV2 Gain Adjustment o y al O Y ai sad N A O i ageap Figure 2 TDA 7891 Gain Potentiometer Location 2 2 e Installation and Setup TDA 7891 User Manual Iss 01 Cable Connections This section provides instructions for connecting cables to the TDA 7891 when mounted in RossGear frames See the following frame rear panel diagram for cable input and output designations On the rear of the Ross frame there are removable connectors for the mono input and eight mono outputs See Figure 3 below and the manual for the frame in which you have installed the TDA 7891 for further details on mono cable connections AOUT4 A OUTS AOUT AOUTT AIN STEREO Y SN STEREO B OUT 4 BOUT3 BOUT2 BOT UT 4 MONO Figure 3 TDA 7891 Cabling Designations for RossGear 7814C and 7812C Series Frames Note The TDA 7891 has eight 1500 outputs designed to drive high impedance gt 10kQ loads Each connector has sockets for the positive negative and grounded wires of a balanced cable Wire the external cables to the removable terminal block connectors as outlined in Figure 4 and the procedure on page 2 4 TDA 7891 User Manual Iss 01 Installation and Setup e 2 3 Connector Side View AN Connector Top Views 7 Connector Wires
4. 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 Y ou can also contact Ross Video for more information on the environmental performances of our products eS Contents Introduction Th This Chapter aii i E sl sia Gioi A Word of Thanks t israel dci duties O Wii A Functional Block Diagram eee A O Ri Documentation Terms coco no no
5. ack each TDA 7891 Timecode Distribution Amplifier 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 TDA 7891 User Manual Iss 01 Installation and Setup e 2 1 Board Installation Use the following steps to install the TDA 7891 Timecode Distribution Amplifier card in a RossGear audio distribution frame e 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 e 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 e After selecting the desired frame installation slot hold the TDA 7891 Timecode Distribution Amplifier 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 Gain Potentiometer Setup If necessary use a tweaker screwdriver to adjust the RV2 Gain potentiometer to the desired gain range See Figure 2
6. d 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 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
7. ease contact us at the numbers listed in the back of this publication Our technical support staff is always available for consultation training or service TDA 7891 User Manual Iss 01 Introduction e 1 1 Overview The Ross Video TDA 7891 Timecode Distribution Amplifier provides a means of distributing timecode signals with virtually no loss of quality The TDA 7891 Timecode Distribution Amplifier is a high input impedance amplifier with eight 1500 outputs for use in AFR 7800 series audio frames See Chapter 3 Specifications for performance details Please refer to the specific frame User Manual for ventilation and cooling instructions to maintain optimum operating conditions The TDA 7891 Timecode Distribution Amplifier card is a part of a full line of RossGear analog distribution products engineered to satisfy the highest quality broadcast standards and the most demanding requirements of your facility Functional Block Diagram RITA Si E Figure 1 Simplified Block Diagram of the TDA 7891 1 2 e Introduction TDA 7891 User Manual Iss 01 Features The following features make the TDA 7891 Timecode Distribution Amplifier the most flexible high quality card for your timecode distribution requirements AC coupled differential input High Impedance input 8 differential outputs Flat frequency response to 20MHz Wide bandwidth to accommodate signals from tape decks in shuttle mode Short signal delay 5 year tran
8. no ncconnos Installation and Setup TA Ts CA nani aa Ma Static DiSCh Pis UnpackinS rd cd last E Board Installation sii Gain Potentiometer Setup Cable Connections i Specifications In This Chi ee O TDA 7891 Technical Specifications Service Information In Pis Chapter o ile upa Troubleshooting Checklist eee Warranty and Repair Policy eres Ordering Information SA A TDA 7891 Family of Audio Cards and Related Products TDA 7891 User Manual Iss 01 Contents e ii e Contents TDA 7891 User Manual Iss 01 Introduction In This Chapter This chapter contains the following information sections A Word of Thanks Overview Functional Block Diagram Features Documentation Terms A Word of Thanks Congratulations on choosing the Ross Video TDA 7891 Timecode Distribution Amplifier The TDA 7891 Timecode Distribution Amplifier is part of a full line of RossGear Terminal Equipment backed by Ross Video s experience in engineering and design expertise since 1974 You will be pleased at how easily your new TDA 7891 fits into your overall working environment Equally pleasing is the product quality reliability and functionality Thank you for joining the group of worldwide satisfied Ross Video customers Should you have a question pertaining to the installation or operation of your TDA 7891 Timecode Distribution Amplifier pl
9. nt 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 warranties are expressly limited to the duration of this warranty This RossGear TDA 7891 User Manual provides all pertinent information for the safe installation and operation of your RossGear Product Ross Video policy dictates that all repairs to the RossGear TDA 7891 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 TDA 7891 please contact Ross Video Technical Support 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 TDA 7891 If required a temporary replacement module 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 Ross Video Technical Support will continue to provide advice on any product manufactured by Ro
10. o change without notification Performance 3 2 e Specifications TDA 7891 User Manual Iss 01 Service Information In This Chapter This chapter contains the following sections Troubleshooting Checklist Warranty and Repair Policy Troubleshooting Checklist Routine maintenance to this RossGear product is not required In the event of problems with your TDA 7891 Timecode Distribution Amplifier 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 TDA 7891 User Manual Iss 01 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 Re
11. pricing Technical support Upcoming trade show information General Business Office and Technical Support After hours Emergency Fax General Information Technical Support Ross Video Limited Ross Video Incorporated Visit Us Please visit us at our website for Company information 613 e 652 e 4886 613 e 652 e 4886 ext 333 613 652 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 Related products and full product lines On line catalog Trade show information News Testimonials N ANAN Ageriivideo com
12. rom 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 7800 series frame Refer to the RossGear 7800 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 accessories 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 designe
13. seat the Card in the Frame Eject the card and reinsert it in the frame Check Control Settings Refer to the Installation and Operation sections of the manual and verify all user adjustable 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 TDA 7891 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 TDA 7891 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 TDA 7891 has failed after your warranty period has expired we will repair your defective product should suitable replacement components be available You the owner will bear any labor and or part costs incurred in the repair or refurbishment of said equipment beyond the FIVE 5 year warranty period In no eve
14. sferable warranty Fits Ross AFR 7812C and AFR 7814C audio frames Documentation Terms The following terms are used throughout this guide TDA 7891 User Manual Iss 01 Frame refers to the AFR 7812C or the AFR 7814C frame that can house the TDA 7891 card See the respective User Manuals for details Operator and User both refer to the person who uses the TDA 7891 card Board Card and Module all refer to the TDA 7891 module including all components System and Audio system refers to the mix of interconnected analog production and terminal equipment in which the TDA 7891 card operates Introduction e 1 3 1 4 e Introduction TDA 7891 User Manual Iss 01 Installation and Setup In This Chapter This chapter contains the following information sections e Static Discharge e Unpacking e Board Installation e Gain Potentiometer Setup Static Discharge Whenever handling the TDA 7891 Timecode Distribution Amplifier card 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 pe Aa 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 Unp
15. ss Video Limited beyond the warranty period without charge for the life of the equipment 4 2 e Service Information TDA 7891 User Manual Iss 01 Ordering Information In This Chapter This chapter contains ordering information for the TDA 7891 and related products TDA 7891 Family of Audio Cards and Related Products Standard Equipment e TDA 7891 Timecode Distribution Amplifier Optional Equipment e 7891D 004 Timecode Distribution Amplifier User Manual additional User Manual e AFR 7812C Audio Products Frame and Power Supply PS 7813 2 RU holds 12 modules includes 1 power supply e AFR 7814C Audio Products Frame and Power Supply PS 7813 1 RU holds 4 modules includes 1 power supply e 311 050 Spare Removable Terminal Block Connector Your TDA 7891 Timecode Distribution Amplifier is a part of the RossGear family of products Ross Video offers a full line of RossGear terminal equipment including distribution conversion monitoring synchronizers encoders decoders keyers switches as well as analog audio and video products TDA 7891 User Manual Iss 01 Ordering Information e 5 1 Notes 5 2 e Ordering Information TDA 7891 User Manual Iss 01 Notes TDA 7891 User Manual Iss 01 Ordering Information e 5 3 Contact Us Contact our friendly and professional support representatives for the following PHONE E MAIL POSTAL SERVICE Name and address of your local dealer Product information and
16. y 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 P O D c O 5 gt Z O a O O gt 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 major 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 f
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