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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 

Summary of Contents for ADA-7802

Page 1: ...Ross Video Limited ADA 7802 ADA 7802 600 ADA 7802V Stereo Mono Audio Distribution Amplifier User Manual Ross Part Number 7802D 004 Issue 09A...

Page 2: ...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 Limi...

Page 3: ...th 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 de...

Page 4: ...o 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 warr...

Page 5: ...tup 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...

Page 6: ...ii Contents ADA 7802 User Manual Iss 09A...

Page 7: ...eo 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...

Page 8: ...entilation 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 v...

Page 9: ...AFR 7814C audio frames Fits Leitch 880 Series frames Interchangeable alternative to the Leitch ASD 880 and ADA 883 amplifier ADA 7802 600 This amplifier version has the following unique features Fits...

Page 10: ...and AVFR 7855C frames that can house the ADA 7802V card See the respective User Manuals for details Operator and User both refer to the person who uses the ADA 7802 cards Board Card and Module all ref...

Page 11: ...ause serious damage to sensitive semiconductor devices Avoid handling circuit boards in high static environments such as carpeted areas and when wearing synthetic fiber clothing Always exercise proper...

Page 12: ...umper to the STEREO position to enable stereo output default setting controlled with channel A and B Gain jumpers and potentiometer settings 2 Set the A Gain jumper to the desired gain range position...

Page 13: ...t hold the ADA 7802 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 Potenti...

Page 14: ...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 Figure 4 ADA 7802 Ca...

Page 15: ...uts Max Output Level 28dBu Output Impedance 66 Output Output Isolation 70dB S N Ratio 100dB unity gain relative to 8dBu Gain Range 6 to 34dB 6dB fine adjustment Frequency Response 0 02dB 20Hz to 20kHz...

Page 16: ...0dB unity gain relative to 8dBm Gain Range 6 to 34dB 6dB fine adjustment Frequency Response 0 02dB 20Hz to 20kHz Total Harmonic Distortion Noise 0 007 Intermodulation 0 006 SMPTE Crosstalk between Amp...

Page 17: ...unity gain relative to 8dBu Gain Range 6 to 34dB 6dB fine adjustment Frequency Response 0 02dB 20Hz to 20kHz Total Harmonic Distortion Noise 0 002 Intermodulation 0 002 SMPTE Crosstalk between Amplif...

Page 18: ...3 4 Specifications ADA 7802 User Manual Iss 09A...

Page 19: ...wer supply AFR 7814C Audio Products Frame and Power Supply PS 7813 1 RU holds 4 modules includes 1 power supply AVFR 7854C Analog Products Frame and Power Supply PS 7103 1RU holds 2 audio and 2 video...

Page 20: ...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 i...

Page 21: ...mation for the safe installation and operation of your RossGear Product Ross Video policy dictates that all repairs to the RossGear ADA 7802 are to be conducted only by an authorized Ross Video Limite...

Page 22: ...4 4 Ordering Information ADA 7802 User Manual Iss 09A...

Page 23: ...Notes...

Page 24: ...86 After hours Emergency 613 349 0006 PHONE Fax 613 652 4425 General Information solutions rossvideo com E MAIL Technical Support techsupport rossvideo com Ross Video Limited 8 John Street Iroquois On...

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