AEQ BRAVO User manual

AEQ BRAVO
Broadcast Mixing Console
USER’S MANUAL
ED. 12/07
V. 1.9 - 04/02/2015

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Broadcasting Console
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CONTENTS
1. INTRODUCTION............................................................................................................. 3
1.1. General............................................................................................................ 3
1.2. Maintenance.................................................................................................... 3
1.3. Warranty.......................................................................................................... 4
2. EQUIPMENT POWER SUPPLY...................................................................................... 5
2.1. General............................................................................................................ 5
2.2. Switching on the equipment............................................................................. 5
3. AUDIO CONNECTIONS.................................................................................................. 6
3.1. General............................................................................................................ 6
3.2. General diagram.............................................................................................. 7
4. FUNCTIONAL DESCRIPTION........................................................................................ 8
4.1. Mono Mic./Line channels................................................................................. 8
4.2. Stereo double line channels............................................................................ 10
4.3. Monitoring and control area............................................................................. 12
4.3.1. PROGRAM output............................................................................... 13
4.3.2. AUDITION output................................................................................ 13
4.3.3. RECORDING outputs......................................................................... 13
4.3.4. Control room monitoring...................................................................... 14
4.3.5. Studio room monitoring....................................................................... 15
4.3.6. “AIR” or “EXTERNAL” input................................................................ 16
4.3.7. Internal telephone hybrids or four-wire interface for external hybrids. 16
4.3.7.1. Adjusting the internal hybrids................................................... 18
4.3.8. Talkback (“T’BACK”) circuit................................................................. 18
4.3.9. Studio monitors muting....................................................................... 19
4.3.10. Studio signaling circuit...................................................................... 19
4.3.11. Remote control of external equipments............................................ 19
4.4. VU-meters panel……………............................................................................ 20
5. INTERNAL PROGRAMMING AND CONNECTION DIAGRAMS.................................... 21
5.1. Programming and internal adjustments........................................................... 21
5.2. Audio connection............................................................................................. 22
5.3. External hybrids connection............................................................................. 23
5.4. Signaling connection........................................................................................ 23
6. TECHNICAL SPECIFICATIONS..................................................................................... 24
6.1. Mono Mic./Line inputs……………………......................................................... 24
6.2. Stereo Line inputs............................................................................................ 24
6.3. Program output................................................................................................ 24
6.4. Recording outputs............................................................................................ 24
6.5. Studio monitor output....................................................................................... 24
6.6. Signaling.......................................................................................................... 24
6.7. Power supply................................................................................................... 24
6.8. Dimensions and weight.................................................................................... 25
6.8.1. Dimensions......................................................................................... 25
6.8.2. Weight................................................................................................. 25
7. ADDITIONAL INFORMATION......................................................................................... 26

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Broadcasting Console
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1. INTRODUCTION.
1.1. General.
The following security and precautionary measures must be observed during all phases of
operation and maintenance of the unit. Failure to comply with the instructions highlighted in this
manual could affect the performance and function of the equipment.
AEQ accept no responsibility for damage or injury caused by incorrect use or
manupulation of the equipment.
- Read all the instructions: To obtain the optimum performance and reliability from the
moment of installation, and to prevent injury, incorrect operation or damage to the
equipment, it is absolutely indispensable to throughly read all the instructions contained
in this manual before connecting and operating the equipment.
- Protection against water and humidity: This equipment is not recommended for use
in areas affected by rain water etc., or sites with damp floors, or in places which are
subject to a high degree of atmospheric humidity which is liable to condense in the
equipment.
- Ventilation, fire and inflammable vapours: AEQ BRAVO must not be placed close to
a source of heat. The use of electrical or electronic equipment near a source of fire or in
an atmosphere containing inflammable vapors is extremely dangerous and must be
avoided at all costs. All the ventilation grilles must remain unobstructed to permit
sufficient ventilation and allow the dissipation of heat to the exterior of the equipment.
1.2. Maintenance.
Maintenance operations on this unit should only be carried out by qualified technical personnel.
AEQ does not accept responsibility for any damage or injury to the equipment caused by
maintenance by unauthorised persons, nor for any damage or injury to other equipment or
persons caused by any unauthorised repair or maintenance operation.
CAUTION. A risk of severe electrical shock exists due to very high voltages which are present in
the power supply unit. Therefore proceed with absolute caution when opening up this unit.
The AEQ BRAVO mixing console does not require preliminary adjustment. After programming
has been carried-out, as described in this manual either by the user or the manufacturer, no
additional operations whatsoever are necessary to obtain optimum performance.
WARNING
All manipulation inside the equipment must be carried out
only by qualified technical personnel

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Broadcasting Console
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1.3. Warranty.
AEQ warrants that this product has been designed and manufactured under a certified Quality
Assurance System. AEQ therefore warrants that the necessary test protocols to assure the
proper operation and the specified technical characteristics of the product have been followed
and accomplished.
This includes that the general protocols for design and production and the particular ones for
this product are conveniently documented.
1.- The present guarantee does not exclude or limit in any way any legally recognized right of
the client.
2.- The period of guarantee is defined to be twelve natural months starting from the date of
purchase of the product by the first client.
To be able to apply to the established in this guarantee, it is compulsory condition to inform the
authorized distributor or –to its effect- an AEQ Sales office or the Technical Service of AEQ
within thirty days of the appearance of the defect and within the period of guarantee, as well as
to facilitate a copy of the purchase invoice and serial number of the product.
It will be equally necessary the previous and expressed conformity from the AEQ Technical
Service for the shipment to AEQ of products for their repair or substitution in application of the
present guarantee.
In consequence, return of equipment that does not comply with these conditions will not be
accepted.
3.- AEQ will at its own cost repair the faulty product once returned, including the necessary
labour to carry out such repair, whenever the failure is caused by defects of the materials,
design or workmanship. The repair will be carried out in any of the AEQ authorized Technical
Service Centre. This guarantee does not include the freight charges of the product to or from
such Authorized Technical Service Centre.
4.- No Extension of the Guarantee Period for repaired product shall be applied. Nor shall a
Substituted Products in application of this Guarantee be subject to Guarantee Period Extension.
5.- The present guarantee will not be applicable in the following situations:
improper use or Contrary use of the product as per the User or Instruction Manual; violent
manipulation; exhibition to humidity or extreme thermal or environmental conditions or sudden
changes of such conditions; electrical discharges or lightning; oxidation; modifications or not
authorized connections; repairs or non-authorized disassembly of the product; spill of liquids or
chemical products.
6.- Under no circumstances, whether based upon this Limited Guarantee or otherwise, shall
AEQ, S.A. be liable for incidental, special, or consequential damages derived from the use or
from the impossibility of using the product.
AEQ shall not be liable for loss of information in the disks or data support that have been altered
or found to be inexact, neither for any accidental damage caused by the user or other persons
manipulating the product.

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Broadcasting Console
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2. EQUIPMENT POWER SUPPLY.
2.1. General.
Before connecting the equipment to electrical mains: The AEQ BRAVO mixer power supply
cable is supplied with European Standard and USA type mains interconnecting plugs. In certain
countries it could be necessary to exchange this plug to adapt to the existing local standards. If
this is the case, the substitution of the plug should be carried out before proceeding.
Equipment power supply is supplied though specific connector, using supplied cable. The
equipment is designed to operate with alternating voltage between 110 and 240V at 50 or 60
Hz. The maximum consumption is approximately 100VA. Inside the power connector
compartment, there are two 2 Amp. Slow Blow fuses, one of them used as a spare.
2.2. Switching on the equipment.
AEQ BRAVO is prepared for connection to the electrical mains. Prior to connection of the
power cord, ensure that power supply switch POWER is in the off position.
Activate the power supply switch POWER. If all the previous instructions have been followed
correctly, the “POWER ON” indicator will illuminate indicating that the equipment is receiving
power.

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Broadcasting Console
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3. AUDIO CONNECTIONS.
3.1. General.
The connections of Audio of the Microphone inputs and the Program output (XLR connectors) is
done according to standards recommended by AES 14-1.992 (ANSIS 4.48 - l.992). This
recommendation is based on IEC 268 - 12 of 1.987 “Equipment for sound systems part 12,
application of connectors for radio Broadcast and similar uses”.
The Audio connection cables should be checked for compatibility with the standards indicated. If
this is not the case they must be exchanged or modified since problems could be encountered
with the phase of the Audio signal.
MALE pin
connector Equipment output
FEMALE socket
connector Entrada del equipo
CONTACT
Application and
Power Supply 1 2 3
Balanced Mono
Channel Screen Positive polarity Return
Unbalanced Mono
Channel Screen and return Positive polarity *
Balanced Mono
Channel
Phantom power
Screen and negative
power Positive polarity and power Positive power return
Balanced Mono
Channel
Power A-B Screen Positive polarity
and power Negative power return
* If a balanced microphone is connected to an unbalanced amplifier input, the input contact 3 is connected to
contact 1.
NOTE: This equipment does NOT have a “Phantom” Microphone Power Supply.

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Broadcasting Console
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3.2. General diagram.

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Broadcasting Console
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4. FUNCTIONAL DESCRIPTION.
4.1. Mono Mic./Line channels.
The AEQ BRAVO mixer has four independent Mic/Line inputs: four electronically balanced
inputs at microphone level with Female XLR-3 connectors and four asymmetrical at line level
with RCA connectors:
Each Mic./Line input has a fine adjustment for input gain. An specific tool is needed in order to
make this adjustment:
Input fine adjustment
This is a setup fine adjustment and it’s only necessary during the initial installation of the
equipment.
The default factory setting is generally acceptable for most of the installations.

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Broadcasting Console
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The controls associate to each one of the channels are the following:
Input selection is accomplished through “MIC/LINE” switch. When “LINE” input
is selected the switch yellow indicator will illuminate.
“AUDITION“ push button: it sends the connected Mic or Line signal to
AUDITION bus. Indicator will illuminate in blue color when it’s pressed.
“PHONE“ push button: it sends the connected Mic or Line signal to PHONE
bus. Indicator will illuminate in yellow color when it’s pressed.
“CUE“ push button: it sends the connected Mic or Line signal to CUE bus.
Indicator will illuminate in green color when it’s pressed.
With the sliding FADER you can adjust the output level of the Audio signal of
the selected channel and sent to PROGRAM, AUDITION, PHONE and CUE
buses (when respective sending buttons are pressed).
“PROGRAM“ push button: it sends the connected Mic or Line signal to
PROGRAM bus. Indicator will illuminate in red color when it’s pressed.

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Broadcasting Console
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4.2. Stereo double line channels.
The AEQ BRAVO mixer is equipped with eight independent stereo double Line inputs. Those
are asymmetrical inputs at line level with RCA connectors:
Each input has a double fine adjustment of input gain. An specific tool is needed in order to
make this adjustment:
Input fine adjustment
This is a setup fine adjustment and it’s only necessary during the initial installation of the
equipment.
The default factory setting is generally acceptable for most of the installations.