AEQ BC-500 User manual

A.E.Q., S.A., manufacturer of this equipment, is a Registered Company
in accordance with UNE EN-ISO-9001standard by Aenor with reg. no. ER-080/1/96
AEQ BC-500
Broadcast Audio Mixer
USER’S MANUAL
ED 05/04

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BC-500
Broadcast Audio Mixer
INDEX
1. GENERAL INSTRUCTIONS ........................................................................................4
1.1. General precautions ..............................................................................................4
1.1.1. Read all instructions .........................................................................................4
1.1.2. Power and ground connections .........................................................................4
1.1.3. Protection against voltage fluctuations ...............................................................4
1.1.4. Water and humidity...........................................................................................4
1.1.5. Ventilation, fire and flammable vapours ..............................................................4
1.1.6. Maintenance ....................................................................................................4
1.1.7. Warranty..........................................................................................................5
2. POWER SUPPLY .......................................................................................................6
2.1. General.................................................................................................................6
2.1.1. Before connecting the equipment to mains .........................................................6
2.1.2. Voltage selection..............................................................................................6
2.1.3. Equipment power on .........................................................................................7
2.1.4. 125 / 240 V ......................................................................................................8
3. AUDIO CONNECTIONS ..............................................................................................9
3.1. General.................................................................................................................9
4. MIXING CONSOLE DESCRIPTION ...........................................................................10
4.1. Basic design concepts .........................................................................................10
4.2. Standard configuration .........................................................................................11
4.3. Available modules ...............................................................................................11
5. MIXING MODULES DESCRIPTION...........................................................................12
5.1. BC-511 ...............................................................................................................12
5.1.1. Functions .......................................................................................................12
5.1.2. Description of controls and connectors .............................................................13
5.2. BC-522 ...............................................................................................................14
5.2.1. Functions .......................................................................................................14
5.2.2. Description of controls and connectors .............................................................15
5.3. BC-533 ...............................................................................................................16
5.3.1. Functions .......................................................................................................16
5.3.2. Description of controls and connectors .............................................................17
5.3.3. Example of remote connection of the AEQ TH-12 hybrid to the BC-533 .............18
5.3.4. Example of remote connection of the AEQ TH-02EXmkII hybrid to the BC-533...19
5.4. BC-533H.............................................................................................................20
5.4.1. Functions .......................................................................................................20
5.4.2. Adjusting procedure........................................................................................20
5.5. BC-533H MPX.....................................................................................................21
5.5.1. Functions .......................................................................................................21
5.5.2. Description of controls and connectors .............................................................22
5.6. BC-540 ...............................................................................................................23
5.6.1. Functions .......................................................................................................23
5.6.2. Description of controls and connectors .............................................................23
5.7. BC-550 ...............................................................................................................24
5.7.1. Functions .......................................................................................................24
5.7.2. Description of controls and connectors .............................................................24
5.8. BC-560 ...............................................................................................................25
5.8.1. Functions .......................................................................................................25
5.8.2. Description of controls and connectors .............................................................25
5.9. BC-577 ...............................................................................................................26

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BC-500
Broadcast Audio Mixer
5.9.1. Functions .......................................................................................................26
5.9.1.1. Voltage selection..................................................................................26
5.9.2. Description of controls and connectors .............................................................27
5.10. BC-578 ...............................................................................................................28
5.10.1. Functions .......................................................................................................28
5.10.1.1. Control room monitor and metering block ‘CONTROL MONITOR’............28
5.10.1.2. Studio room monitor block ‘STUDIO’......................................................28
5.10.1.3. Talkback, PFL and intercom block ‘TALKBACK’ .....................................29
5.10.1.4. Power supply .......................................................................................29
5.10.1.5. Signalling.............................................................................................30
5.10.2. Description of controls and connectors .............................................................31
6. FIGURES AND DIAGRAMS ......................................................................................32
6.1. Block diagram .....................................................................................................32
6.2. Rear connection panel .........................................................................................34
7. TECHNICAL SPECIFICATIONS ................................................................................35
8. EXAMPLES OF CONNECTIONS ..............................................................................36
8.1. Examples of connections for broadcasting and similar purposes .............................36
8.2. Figures 1A y 1B...................................................................................................36
8.2.1. The mixer.......................................................................................................36
8.2.2. The connections .............................................................................................37
8.3. Figures 2 and 3 ...................................................................................................41
9. DIMENSIONS ...........................................................................................................44
10. DELIVERY PART LIST .............................................................................................45
10.1. Jumper programming configuration.......................................................................45
10.2. Delivery part list...................................................................................................47
APPENDIX: A.E.Q. WARRANTY........................................................................................48

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BC-500
Broadcast Audio Mixer
1. GENERAL INSTRUCTIONS
1.1. General precautions
The following precautions should be observed for safety reasons during all operation and
maintenance of this appliance. Failure to comply with all instructions may result in serious
alterations in regard of the functions and performance of the equipment. AEQ will not be
responsible for any damage or loss due to the incorrect handling of the equipment.
1.1.1. Read all instructions
Before connecting the unit to mains and start operating, it is absolutely necessary to carefully
read all the instructions in this manual, and to do so in the established order. If these basic rules
are respected you will obtain the maximum performance of the equipment from the very start,
and, at the same time, you will avoid incorrect or improper operation that could cause damage
to the equipment or personnel.
1.1.2. Power and ground connections
To reduce the risk of electrical shock, this equipment should be connected to mains earth.
The equipment is provided with an earthed Euro-plug. If it should be necessary to change the
plug, bear in mind that the green / yellow cable is earth.
1.1.3. Protection against voltage fluctuations
In some areas, where voltage fluctuations are common, it is highly recommended to connect
the equipment to an external protection in order to guarantee the tension received by the
equipment is the one specified in this manual.
1.1.4. Water and humidity
The operation of the equipment in humid environments, near water or wet floors should be
avoided at all costs. Nor should it be used in environments where the atmospheric humidity is
so high that it will produce regular condensation inside the equipment.
1.1.5. Ventilation, fire and flammable vapours
The equipment should never be placed near or over a source of heat. The use of electrical or
electronic equipment in environment close to fire or flammable vapours is a risk that has to be
avoided at all costs. All ventilation grills must be unobstructed to allow hot air out and assure a
proper ventilation of the equipment.
1.1.6. Maintenance
Any maintenance of this equipment should be carried out by authorized technical service
personnel. AEQ will not be responsible for any damage caused by unauthorized maintenance
operations. Nor will AEQ be responsible for any damage caused to other equipment or persons
due to such unauthorized maintenance.
Always bear in mind that the equipment contains high voltage and that there exists the risk of
an electrical shock. Handle the equipment with due care and precaution.

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BC-500
Broadcast Audio Mixer
The AEQ BC-500 Broadcast Mixing Console does not need any pre-adjustments. Once
carried out all programming described in this manual, by user or in factory, it is not necessary to
carry out any additional adjustments for optimum performance.
As an advice to the user, it should be mentioned that the input transformers of the different
modules should be demagnetised periodically, since this factor will influence the total distortion
of the equipment. To carry out this operation it is enough to apply a 25 Hz signal at an
appropriate level to achieve that the nucleus of the transformer reaches clip, and then, very
slowly, reduce the level of the signal until it is cancelled. It is recommended to carry out this
operation every year.
Note: In case the user needs to relocate or incorporate new input modules in the equipment,
this should be carried out as follows:
1) Turn off the equipment pressing the power switch located on the rear part of the monitor
module BC-578.
2) Take out the module(s) that you desire to change or relocate, unscrewing the screws that
hold the module to the chassis.
3) Lift the module and unplug the flat cable located in the lower section of the printed circuit, to
free the module form the internal bus connection. If any one is connected, unplug the
connectors at the rear part of the module. Proceed the same way in inverted order, to install
new modules.
1.1.7. Warranty
A.E.Q. warrants, for a period of one year since the equipment’s date of purchase, the free
replacement at the factory’s Technical Service Department of every faulty part due to defects in
labor and materials. This warranty includes the labor needed for the replacement and the
equipment’s tune up.
This warranty does not include shipping costs, equipment’s installation and start on, neither
cleaning or replacement of parts subject to normal operative wear of the product.
Also, this warranty will not apply in case of damage or defect due to misuse or manipulation
of the equipment by unauthorized personnel.