AEQ BC-300 Broadcast Mixing Console Mezclador de Audio para Radiodifusión USER’S MANUAL / MANUAL DE USUARIO ED. 11/01 A.E.Q., S.A. manufacturer of this equipment is a Registered Company with UNE EN - ISO-9001 by AENOR ER-080/1/96 standard. / A.E.Q., S.A.
AEQ BC-300 Broadcast Mixing Console USER’S MANUAL ED. 11/01 A.E.Q., S.A.
1. GENERAL 1.1. GENERAL PRECAUTIONS 1.1.1. READ ALL THE INSTRUCTIONS 1.1.2. POWER SUPPLY AND EARTH CONNECTIONS 1.1.3. PROTECTION AGAINST VOLTAGE VARIATION 1.1.4. WATER AND HUMIDITY 1.1.5. VENTILATION 1.1.6. MAINTENANCE 1.1.7. WARRANTY 2. EQUIPMENT POWER SUPPLY 2.1. GENERAL 2.1.1. BEFORE CONNECTING THE EQUIPMENT TO ELECTRICAL MAINS. 2.1.2 VOLTAGE SELECTION 2.1.3. SWITCHING ON THE EQUIPMENT 3. AUDIO CONNECTIONS 3.1. GENERAL AES 14-1.992 (ANSIS 4.48 - l.992)/IEC 268 - 12 of 1.987. 4.
6. INTERNAL PROGRAMMING AND SCHEMATIC PLAN OF SIGNAL CONNECTIONS AND EXTERNAL HYBRID 6.1. PROGRAMMING AND INTERNAL ADJUSTMENTS 6.2. DIAGRAM OF SIGNAL CONNECTIONS 6.3. DIAGRAM OF EXTERNAL HYBRID CONNECTIONS 7. TECHNICAL SPECIFICATIONS BLOCK DIAGRAM 7 .1. INPUTS 7.1.1. BC-311 MIC./LINE INPUTS 7.1.2. BC-322 STEREO LINE INPUTS 7.1.3. BC-378 AUXILIARY INPUTS 7.1.4. BC-378 EXTERNAL INPUTS 7.1.5. BC-378 TEL./4W INPUTS/OUTPUTS 7.2. OUTPUTS 7.2.1. BC-378 MASTER OUTPUTS 7.2.2. BC-378 AUXILIARY OUTPUTS 7.2.3.
1. GENERAL 1.1. General precautions 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. 1.1.1.
CAUTION. A risk of severe electrical shock exists due to very high voltages which are present in the interior of the power supply unit. Therefore proceed with absolute caution when manipulating this unit. The AEQ BC-300 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.
2. EQUIPMENT POWER SUPPLY 2.1. General A description of the power supply module connection is detailed in Chapter 5.4.1. 2.1.1. Before connecting the equipment to electrical mains. CAUTION: Before the equipment is connected to the power supply, the voltage selector must be checked and if necessary set for the supply voltage as in Chapter 2.1.2. The procedures detailed in this section must be followed carefully before connecting and operating the equipment. 2.1.2.
3. AUDIO CONNECTIONS 3. 1. General The connections of Audio of the Microphone input of the channels BC-311 and the output MASTER of the module BC-378 have been accomplished according to the AES 141.992 (ANSIS 4.48 - l.992) recommendation. 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.
4. DESCRIPTION OF THE MIXER 4.1. Basic design concepts The Audio Mixer AEQ BC-300 has been designed, fundamentally, for its use in small Radio Broadcast studios, mobile units, journalist cabins and simple sound facilities, where the relationship price/quality and reliability of the equipment are fundamental factors.
5. DESCRIPTION OF MODULES 5.1. BC-311 5.1.1. Functional description Henceforward are made references continuously numbers and representations of serigraphy that, emphasised in bold in this manual, are found in the chapters 5.1.2., 5.2.2. and 5.3.2.. For greater comprehension of these references, please consult these chapters during the reading. The module of two input channels Mic.
5.1.2. Description of controls and connectors. CONTROLS 7 8 12 11 11 12 9 10 13 13 CONNECTORS 4 3 2 1 6 5 AEQ BC-300 Broadcast Mixing Console 11 1.- Microphone Input Channel 1. 2.- Microphone Input Channel 2. 3.- Line Input Channel 1. 4.- Line Input Channel 2. 5.- Monitor Mute signal Channel 1. 6.- Monitor Mute signal Channel 2. 7.- Mic./Line Switch Channel 1. 8.- Mic./Line Switch Channel 2. 9.- CHANNEL ON Switch Channel 1 and Send. 10.- CHANNEL ON Switch Channel 2 and Send. 11.
5.2. BC-322 5.2.1. Functional description The MODULE of Four Channels Double Stereo Line, BC-322, permits the commuted connection, A/B, by means of the switches (23) LINE A/B, of two asymmetrical stereo inputs per channel, up to a maximum of eight stereo inputs per MODULE. The inputs are carried out through the following RCA connectors : - ( 1 ) Channel 1/A Left. - ( 2 ) Channel 1/A Right. - ( 3 ) Channel 1/B Left. - ( 4 ) Channel 1/B Right. - ( 5 ) Channel 2/A Left. - ( 6 ) Channel 2/A Right.
5.2.2. Description of controls and connectors. CONTROLS 1.- Input Channel 1/A Left. 2.- Input Channel 1/A Right. 3.- Input Channel 1/B Left. 4.- Input Channel 1/B Right. 5.- Input Channel 2/A Left. 6.- Input Channel 2/A Right. 7.- Input Channel 2/B Left. 8.- Input Channel 2/B Right. 9.- Input Channel 3/A Left. 10.- Input Channel 3/A Right. 11.- Input Channel 3/B Left. 12.- Input Channel 3/B Right. 13.- Input Channel 4/A Left. 14.- Input Channel 4/A Right. 15.- Input Channel 4/B Left. 16.
5.3.1. BC-378. Functional description. - Performs the summing function for the main output (Master). This master output is available on the back panel through XLR connectors for the L and R channels (1) and (2). These outputs are transformer balanced. - Has three recording outputs, followers of the master output, with RCA connectors for L and R (3) (4) (5) (6) (7) and (8). These are unbalanced (asymmetric) signals.
If the four-wire interface option is used, connector (16) on the back panel will be used for signal return and connector (18) for sending. Connection diagram for external hybrid. OUTPUT TEL.LIN. 4-wire connector (4 W) BC-378 (16) EXTERNAL HYBRID BC-378 Connector (18) INPUT Adjusting the internal hybrid The hybrid built into this module is an analog-type hybrid. This type of hybrid requires some prior adjustments for perfect hook-up to the phone line.
- we had already mentioned, there are also two buttons (31) and (32) for sending talkback to the auxiliary mono outputs. Studio monitor muting, which is done when a BC-311 mike/line channel is activated from its “CHANNEL ON” switch. This muting of the monitors is necessary to avoid the logical audio hook-up from the studio monitors to the studio microphone(s).
Connection diagram for Signaling. Channel 1 BC-311 Banana (5) Channel 2 BC-311 Banana (6) Using a cable, connect the C banana of the mike channels that are in the studio to the C4 connector of the BC-378 Channel 3 BC-311 Banana Channel 4 BC-311 Banana (6) Connector C4 BC-378 (19) The lamp goes on when a microphone is opened and goes off when it is closed. Connector C2 BC-378 (53C2) Connector C1 BC-378 (53C1) The lamp goes on when a microphone is closed, and goes off when it is opened.
CONTROLS 21 28 27 41 25 42 26 22 23 24 46 43 47 29 44 30 48 31 32 45 49 33 34 50 35 36 37 38 39 40 51 52 CONNECTORS 7 8 5 6 3 4 9 10 20 1 11 2 12 19 14 13 15 18 53 17 16 AEQ BC-300 Broadcast Mixing Console 18 1.- Left Master Output 2.- Right Master Output 3.- Recording Output 1 - Left. 4.- Recording Output 1 - Right. 5.- Recording Output 2 - Left. 6.- Recording Output 2 - Right. 7.- Recording Output 3 - Left. 8.- Recording Output 3 - Right. 9.- Left Ext./Air Input. 10.
5.4. Frame 5.4.1. Functional Description It contains the LED VU-meter to indicate audio signal level, control room monitoring speakers, and the connectors, fuses and other components necessary for housing the modules described in this manual. It also has the connections for the modules that may make up the Mixer silk-screened on the back. 3 1 4 BACK 2 FRONT 6 5 1.- POWER ON switch. 2.- Electrical Power input connecter with fuse holder. 3.- VOLTAGE SELECTOR. 4.
6. INTERNAL PROGRAMMING AND CONNECTION DIAGRAMS FOR SIGNALING AND EXTERNAL HYBRID WARNING Only qualified technical staff should perform work inside the equipment. 6.1. Programming and internal adjustments. The AEQ BC-300 Mixer has a series of internal adjustments and programming jumpers (P.J.) that let you change some of the factory-set functions. These adjustments and programming jumpers should only be accessed by staff qualified for this type of operations, as the adjustment mechanisms and P.J.
7. TECHNICAL SPECIFICATIONS Block Diagram.
7.1. INPUTS 7.1.1. Input of Mic./Line BC-311. Electronically Balanced. Connector Mic.: Female XLR (2 x MODULE) Connector Line: Female RCA (2 x MODULE) Impedance: > 2 KOhm. Input range: MIC: - 72 dBv / - 21 dBv LINE: - 34 dBv / +14 dBv Nominal level of Master +4dBv Equivalent noise: - 118 dB 20 Hz / 20 KHz. Fader Adjustment: 122 dB 7.1.2. Stereo Line input BC-322. Asymmetrical. Connector: Input impedance: Input range: Fader Adjustment: Female RCA (16 x MODULE) > 10 KOhm. - 20 dBv / +26 dBv Nominal Output.
7.2. OUTPUTS 7.2.1. Master Output BC-378. Transformer Balanced. Connector: Output impedance: Nominal output level: Maximum output level: XLR Male x 2 < 75 Ohm + 4 dBv +15 dBv THD <0,2% 30 Hz - 20 KHz +19 dBv THD <0,2% 60 Hz - 20 KHz Frequency bandwidth: - 0,4 dB 20 Hz. - 1,3 dB 20 KHz Absolute noise: - 81 dBv 20 Hz / 20 Khz (no Input channel routed to master) 7.2.2. Auxiliary Outputs BC-378. Transformer Balanced.
7.3. SIGNALLING Connector: Output voltage: Maximum admissible load: “Hartman”Connector Block. 24 V. 10 VA. 7.4. POWER SUPPLY Input voltage: Consumption: 110/220 V AC +6%,- 10%. 70 VA. 7.5. DIMENSIONS AND WEIGHT 7.5.1. Dimensions Width : Height : Depth : 600 mm. 175 mm. 355 mm. 7.5.2. Weight Approximately 10 Kilograms.
