Ross ADA-7801, ADA-7801-600 User Manual

ADA-7801

ADA-7801-600

Audio

Ross Video Limited

Distribution Amplifier

User Manual

Ross Part Number: 7801D-004
Issue: 08

ADA-7801/-600 • Audio Distribution Amplifier User Manual

• Ross Part Number: 7801D-004

• Document Issue: 08

• Printing Date: January 15, 2004. Printed in Canada.

• Software Issue: N/A

The information contained in this User Manual is subject to change without notice or obligation.

Copyright

© 2004 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 — Protective Earth (PE) terminal. Provided

for connection of the protective earth (green or green/yellow)
supply system conductor.

• Caution — This CAUTION symbol on the equipment refers you

to the Product Manual for additional information. This symbol
appears next to required information in the manual.

• WARNING PERSONAL INJURY: Risk of electrical shock.

This symbol warns you of a potential shock hazard where
HAZARDOUS LIVE voltages greater than 30 Vrms, 42.4Vpeak,
or 60Vdc may be accessible. Failure to comply with these

instructions could result in death or serious injury.

Important Safety Instructions

• Do not use this apparatus 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. Changes or
modifications to this equipment not expressly approved by Ross Video Ltd. could void
the user’s authority to operate this equipment.

• 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.

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

Installation and Setup 2-1

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

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

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

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

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

Gain Potentiometer Setup.........................................................................................2-2

Specifications 3-1

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

ADA-7801 Technical Specifications........................................................................3-1

ADA-7801-600 Technical Specifications ................................................................3-2

Service Information 4-1

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

Troubleshooting Checklist .......................................................................................4-1

Warranty and Repair Policy .....................................................................................4-2

Ordering Information 5-1

In This Chapter .......................................................................................................................5-1

ADA-7801 Family of Audio Cards and Related Products .......................................5-1

ADA-7801 User Manual (Iss. 08) Contents • i

ii • Contents ADA-7801 User Manual (Iss. 08)