Ross ADA-7802, ADA-7802-600, ADA-7802V User Manual

ADA-7802

ADA-7802-600

ADA-7802V

Stereo/Mono Audio

Ross Video Limited

Distribution Amplifier

User Manual

Ross Part Number: 7802D-004
Issue: 09A

ADA-7802/-600/V • Stereo/Mono Audio Distribution Amplifier User Manual

• Ross Part Number: 7802D-004

• Document Issue: 09A

• Printed in Canada.

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

• is a registered trademark of Ross Video Limited.



• Ross, ROSS, ROSS

• 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.

, and MLE are registered trademarks of Ross Video Limited.

Important Regulatory and Safety Notices to Service Personnel

Please review the following material to avoid injury to personnel and to prevent product damage.

• All product servicing should be carried out by qualified service personnel.

• This product may require specific equipment, and/or installation procedures to be

carried out to satisfy certain regulatory compliance requirements. The following
notices have been included in the manual, to call attention to these specific
requirements.

Symbol Meanings

• Protective Earth — This symbol alerts the user of the need to

have a protective grounding source to avoid damage to electronic
components.

• Caution — This symbol alerts the user to a procedure which may

cause irreversible problems. Refer to important safety and
compliance information.

• Warning Hazardous Voltages — This symbol alerts the user

to the presence of an insulated dangerous voltage within the
enclosure of the product.

Important Safety Instructions

• Do not use this device near water. Hazardous voltages can occur.

• Clean only with a dry cloth.

• Do not block any ventilation openings. Install in accordance with the

manufacturer’s instructions.

• Do not install near any heat sources such as radiators, heat registers, stoves, or other
devices (including amplifiers) that produce heat.

• Do not defeat the safety purposes of the polarized or grounding-type plug. A
polarized plug has two blades with one wider than the other. A grounding-type plug
has two blades and a third grounding prong. The wide blade or the third prong is
provided for your safety. If the provided plug does not fit into your outlet, consult
an electrician for replacement of the obsolete outlet.

• Protect the power cord from being walked on or pinched particularly at plugs,
convenience receptacles, and the point where they exit from the device.

• Only use attachments/accessories specified by the manufacturer.

• Unplug this apparatus during lightning storms or when not in use for long periods of

time.

• Refer all servicing to qualified service personnel. Servicing is required when the
device has been damaged in any way, such as: power-supply cord or plug is
damaged, objects have fallen into the device, the device has been exposed to rain or
moisture, the device does not operate normally or has been dropped.

EMC Notices

• FCC

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.

• CE

This product has been tested and meets the requirements of the European CE marking
directive. A copy of the CE Declaration of Conformity can be provided upon request.

Maintenance/User Serviceable Parts

Routine maintenance to this RossGear or GearLite 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
products.

Contents

Introduction 1-1

In This Chapter .......................................................................................................................1-1

A Word of Thanks....................................................................................................1-1

Overview ..................................................................................................................1-1

Functional Block Diagram .......................................................................................1-2

Features ....................................................................................................................1-3

Documentation Terms ..............................................................................................1-4

Installation and Setup 2-1

In This Chapter .......................................................................................................................2-1

Static Discharge........................................................................................................2-1

Unpacking ................................................................................................................2-1

Jumper Setup ............................................................................................................2-2

Board Installation .....................................................................................................2-3

Potentiometer Setup .................................................................................................2-3

Cable Connections....................................................................................................2-3

Specifications 3-1

In This Chapter .......................................................................................................................3-1

ADA-7802 Technical Specifications........................................................................3-1

ADA-7802-600 Technical Specifications ................................................................3-2

ADA-7802V Technical Specifications.....................................................................3-3

Ordering Information 4-1

In This Chapter .......................................................................................................................4-1

ADA-7802 Family of Audio Cards and Related Products .......................................4-1

Troubleshooting Checklist .......................................................................................4-2

Warranty and Repair Policy .....................................................................................4-3

ADA-7802 User Manual (Iss. 09A) Contents • i

ii • Contents ADA-7802 User Manual (Iss. 09A)

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 from the Ross Video ADA-7802 family of Audio Distribution
Amplifiers. The ADA-7802 distribution amplifiers are 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 ADA-7802 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 ADA-7802, please
contact us at the numbers listed in the back of this publication. Our technical support staff is always
available for consultation, training, or service.

Overview

The Ross ADA-7802 family of Audio Distribution Amplifiers provides a means of amplifying and
distributing program-level stereo or mono audio with virtually no loss of quality. It uses the latest
types of integrated circuits, developed specifically for professional audio applications, assuring a very
low level of distortion and noise. The circuit board contains two identical amplifiers which can be used
for stereo distribution or as two independent four-output mono amplifiers. A jumper plug enables the
amplifiers to be operated as a single eight-output mono amplifier.

ADA-7802 User Manual (Iss. 09A) Introduction • 1-1

The ADA-7802 card is available in three models:

• ADA-7802, a 66Ω amplifier card for use in AFR-7800 series audio frames.

• ADA-7802-600, a 600Ω amplifier card for use in AFR-7800 series audio frames.

• ADA-7802V, a 66Ω amplifier card for use in AVFR-7850 series audio/video frames

only.

See Chapter 3, “Specifications” for each model’s performance details.

Please refer to the specific frame User Manual for ventilation and cooling instructions to maintain
optimum operating conditions. The ADA-7802 and ADA-7802-600 cards also fit into Leitch* FR-880
series frames to provide you with additional installation versatility.

The ADA-7802 amplifiers are 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

* Leitch is a trademark of Leitch Technology Corporation

1-2 • Introduction ADA-7802 User Manual (Iss. 09A)

Figure 1. Simplified Block Diagram of the ADA-7802