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AEQ BC-2500

Radio Broadcast Mixing Desk

5.7.1.3. Command, Intercom, Oscillator and Time-signal administration Block

This block administers the command sends and intercom circuit returns, the oscillator

circuit sends and the reception of time signal tones.

The command circuit signals are generated by the microphone

(18) MICRO TALKBACK

that is activated by the push-button switch (

20) TALKBACK

and can be directed to all or any of

the following outputs:

- Master 1 activating the switch

(8) MASTER 1

- Master 2, activating the switch

(9) MASTER 2

- Auxiliary 1, activating the switch

(10) AUX.1

- Auxiliary 2, activating the switch

(11) AUX.2

- Telephone 1, activating the switch

(12) PHONE 1

- Telephone 2, activating the switch

(13) PHONE 2

- Studio monitor activating the switch

(14) STUDIO

- Principal headphones activating the switch

(15) H/PHONES 1

- Secondary headphones activating the switch

(16) H/PHONES 2

- Intercom output activating the switch

(17) INTERCOM OUTPUT

Note:

To avoid the effects of microphone feedback to the control loudspeakers, the monitor signal

level is attenuated when the control microphone is activated.

The intercom circuit input is activated by the switch

(21) INTERCOM INPUT

. When an

audio signal is received it is heard in the PFL monitors.

The audio signals generated by the oscillator circuit are activated with switch

(1) ON/OFF

and can be directed to all or any of the following outputs:

- Master 1, activating the switch

(2) MASTER 1

- Master 2, activating the switch

(3) MASTER 2

- Auxiliary 1, activating the switch

(4) AUX.1

- Auxiliary 2, activating the switch

(5) AUX.2

- Telephone 1, activating the switch

(6) PHONE 1

- Telephone 2, activating the switch

(7) PHONE 2

Note:

The output level is adjusted with the fader corresponding to the output that is activated.

This module has an input for the introduction of the output or outputs previously

programmed by P.D.P. (programmable bridges) of the audio signals corresponding to the time
signal tones. This input is activated with the switch

(19) TIME TOP’S.

Содержание BC-2500

Страница 1: ...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 AEQ BC 2500 Broadcast Audio Mixer USER S MANUAL ED 01 03 ...

Страница 2: ...11 MICRO LINE MONOPHONIC MODULE 5 1 1 FUNCTIONAL DESCRIPTION 5 1 2 DESCRIPTION OF CONTROLS AND CONNECTORS 5 2 BC 2521 DOUBLE LINE EQUALIZED STEREO MODULE 5 2 1 FUNCTIONAL DESCRIPTION 5 2 2 DESCRIPTION OF CONTROLS AND CONNECTORS 5 3 BC 2522 DOUBLE LINE NOT EQUALIZED STEREO MODULE 5 3 1 FUNCTIONAL DESCRIPTION 5 3 2 DESCRIPTION OF CONTROLS AND CONNECTORS 5 4 BC 2533 HYBRID TELEPHONE INPUT OUTPUT MODU...

Страница 3: ...5 7 1 5 REMOTE FUNCTIONS 5 7 2 DESCRIPTION OF REAR CONNECTORS 5 8 BC 2523 EXTERNAL POWER SUPPLY MODULE 5 8 1 FUNCTIONAL DESCRIPTION 5 8 2 DESCRIPTION OF CONTROLS AND CONNECTORS 5 9 BC 2501 CHASSIS AND METER PANEL MODULE 5 9 1 FUNCTIONAL DESCRIPTION 6 TECHNICAL SPECIFICATIONS 6 1INPUTS 6 1 1 MICROPHONE INPUT 6 1 2 LINE INPUTS 6 1 3 BC 2511 INPUT OUTPUT 6 1 4 BC 2533 HYBRID TELEPHONE INPUT OUTPUT 6 ...

Страница 4: ...PROGRAMMING BRIDGES 7 4 POSITION OF THE BC 2521 22 MODULE PROGRAMMING BRIDGES 7 5 BC 2560 A C PROGRAMMING BRIDGES 7 6 POSITION OF THE BC 2560 A C MODULE PROGRAMMING BRIDGES 7 7 BC 2533 PROGRAMMING BRIDGES 7 8 POSITION OF THE BC 2533 MODULE PROGRAMMING BRIDGES 7 9 BC 2578 PROGRAMMING BRIDGES 7 10 POSITION OF THE BC 2578 MODULE PROGRAMMING BRIDGES APPENDIX 1 AEQ WARRANTY BLOCK DIAGRAM ...

Страница 5: ...hat the cable to earth is marked yellow green Note The console must only be connected to the power supply module with the cable supplied by the manufactures for this purpose Cables of greater length may be ordered from the manufactures if required 1 1 3 Protection from excessive supply voltage variation In areas which are subject to frequent variations in the supply voltage it will be necessary to...

Страница 6: ...nsformers of the various modules due to the influence this factor has on the final distortion ratio of the equipment This operation can be performed effectively by applying a 25 Hz signal at a level sufficient to saturate the transformer core and then slowly diminish the signal level until annulment is achieved It is recommended that this operation is performed annually Note In the event that the ...

Страница 7: ...e BC 2523 see section 5 8 of this manual and replace the existing fuse with the alternative as mentioned previously Remember 220 V AC Power supply 1 6 A Fuse Type T 110 V AC Power Supply 2 5 A Fuse Type T Note The equipment can be supplied with 220 AC or 110 AC volts supply Note The power supply cable is supplied with a European Standard mains interconnecting plug In certain countries it could be ...

Страница 8: ...ector female socket connector equipment output equipment input 1 2 3 Application Power Supply Balanced Mono Channel Unbalanced Mono Channel Balanced Mono Channel Phantom Power Balanced Mono Channel Power A B 1 Screen Screen Return Screen Negative Power Screen 2 3 Positive Polarity Positive Polarity Polarity Positive Power Polarity Positive Power Return NOTE 1 Return Positive Power Return Negative ...

Страница 9: ...porating new input modules or it can be redistributed according to operator preferences The following details some of the characteristics that make the AEQ BC 2500 mixer an excellent piece of equipment for utilization in radio and television broadcasters Programmable micro input channels for autocontrol or announcer control by means of internal programmable bridges Fader control of VCA signal Indi...

Страница 10: ...does not occupy chassis space BC 2500 FM ANNOUNCER CONTROL 1 BC 2501FM Chassis with capacity for 24 20 modules with audio meters and PFL monitor loudspeakers 1 BC 2578 Control monitor and intercom module for controller and announcer 2 BC 2511 Micro line mono input module 6 BC 2522 Double switchable stereo input module 2 BC 2533 External hybrid telephone input output and control module 2 BC 2560 A ...

Страница 11: ...eft right channel output signal balance The output signal can be directed to the following outputs whenever the operative channel selector 18 CHANNEL ON is activated Master 1 adjusts the send level with fader 19 and pushing the switch 13 MASTER 1 Master 2 adjusts the send level with fader 19 and pushing the switch 14 MASTER 2 Telephone buses 1 and 2 adjust the send level with fader 19 and pushing ...

Страница 12: ...r BASS 8 Equalizer activation switch EQ ON 9 Saturation level led indicator CLIP 10 Send to auxiliary 1 bus potentiometer AUX 1 11 Send to auxiliary 2 bus potentiometer AUX 2 12 Balance level adjusting potentiometer BALANCE 13 Send to master 1 output bus switch MASTER 1 14 Send to master 2 output bus switch MASTER 2 15 Send to telephone bus switch PHONE 16 Send to pre listen bus push button PFL ON...

Страница 13: ...nation of led indicator 19 Potentiometer 12 BALANCE regulates the left right channel output signal balance This function is activated when switch 14 BALANCE ON is activated The output signal can be directed to the following outputs whenever the operative switch 20 CHANNEL ON is activated Master 1 adjusts the send level with fader 21 and pushing the switch 15 MASTER 1 Master 2 adjusts the send leve...

Страница 14: ...eter AUX 1 12 Send to auxiliary 2 bus potentiometer AUX 2 13 Balance level adjusting potentiometer BALANCE 14 Balance activation switch BALANCE ON 15 Send to master 1 output bus switch MASTER 1 16 Send to master 2 output bus switch MASTER 2 17 Send to telephone bus switch PHONE 18 Send to pre listen bus push button PFL ON 19 Pre listen active led indicator PFL ON 20 Channel activation switch CHANN...

Страница 15: ...CE ON is activated The output signal can be directed to the following outputs whenever the operative channel selector 15 CHANNEL ON is activated Master 1 adjusts the send level with fader 16 and pushing the switch 10 MASTER 1 Master 2 adjusts the send level with fader 16 and pushing the switch 11 MASTER 2 Telephone buses 1 and 2 adjust the send level with fader 16 and pushing the switch 12 PHONE T...

Страница 16: ... switch BALANCE ON 10 Send to master 1 output bus switch MASTER 1 11 Send to master 2 output bus switch MASTER 2 12 Send to telephone bus switch PHONE 13 Send to pre listen bus push button PFL ON 14 Pre listen active led indicator PFL ON 15 Channel activation switch CHANNEL ON 16 Output level slide potentiometer FADER 17 Line A remote connectors REMOTE A 18 Line A left input connector INPUT A L 19...

Страница 17: ...working with the send to auxiliary 1 programmed as post fader and whenever the channel operative switch 17 CHANNEL ON is activated Press button 5 MULTIPLEX When this function is activated in two BC 2533 modules if both are available in the console the telephone lines associated with each one of them are interlinked The output signal from this module is the sum of all the sends in the telephone bus...

Страница 18: ...signals Note The BC 2533 module can be programmed for connection to telephone bus 1 or 2 This operation is performed during manufacturate To alter this specification our Technical Service department should be consulted It should be noted that two BC 2533 modules must never be connected to the same telephone bus ...

Страница 19: ...12 Module Hybrid pin connector Note The situation of P D P program bridges varies according to the AEQ external hybrid model selected Consult Section 7 for further explanation If you own an EAGLE ISDN Audiocodec you can use it as an hybrid Read EAGLE Users Manual in order to make the connection REMOTE INPUT FROM LINE OUTPUT TO LINE REMOTE OUTPUT INPUT REMOTE RING 1 REMOTE AIR 1 INPUT FROM LINE OUT...

Страница 20: ...AUX 1 10 Send to auxiliary 2 bus potentiometer AUX 2 11 Send to master 1 output bus switch MASTER 1 12 Send to master 2 output bus switch MASTER 2 13 Output pre listen activated led indicator PFL OUT 14 Input pre listen activated led indicator PFL IN 15 Output pre listen activation push button PFL OUT 16 Input pre listen activation push button PFL IN 17 Channel activation switch CHANNEL ON 18 Outp...

Страница 21: ...t buses Master 1 Master 2 Auxiliary 1 and Auxiliary 2 This operation is performed during manufacturate To alter this specification consult section 7 It should be noted that two BC 2560 A C modules must never be connected to the same bus The output level is controlled by the slide fader 1 The monophonic output at connector 2 MONO OUTPUT together with the stereo output at connector 3 OUTPUT L and 4 ...

Страница 22: ...st Mixing Desk 23 5 5 2 Description of Controls and Connectors 1 Output level slide potentiometer FADER 2 Mono line output connector MONO 3 Left line output connector LEFT 4 Rigth line output connector RIGHT 1 2 3 4 FRONT REAR ...

Страница 23: ...s The BC 2560 C can be programmed for connection to any of the output buses Master 1 Master 2 Auxiliary 1 and or Auxiliary 2 This operation is performed during manufacturate To alter this specification consult section 7 1 It should be noted that two BC 2560 A modules must never be connected to the same bus The output level is controlled by the slide fader 5 The monophonic output at connector 6 MON...

Страница 24: ...onsole selector BYPASS NETWORK 3 Luminous bypass pre listen indicator PFL NETWORK 4 Pre listen activation push button PFL NETWORK 5 Output level slide potentiometer FADER 6 Mono line output connector MONO OUTPUT 7 Left line output connector OUTPUT L 8 Rigth line output connector OUTPUT R 9 Left external input connector EXT INPUT L 10 Rigth external input connector EXT INPUT R 6 7 8 9 10 FRONT REAR...

Страница 25: ...ds to the VU meter panel particularly the signal selected by the monitor selector SELECT and control of the loudspeakers and reset of the pre listen circuit The following signal can be monitored Master 1 by selecting 3 MASTER 1 Master 2 by selecting 4 MASTER 2 Auxiliary 1 by selecting 5 AUX 1 Auxiliary 2 by selecting 6 AUX 2 External Input 1 by selecting 7 EXT 1 External input 2 by selecting 8 EXT...

Страница 26: ...ntrol monitor selector AUX 1 6 Send to auxiliary 2 control monitor selector AUX 2 7 Send to external input 1 control monitor selector EXT 1 8 Send to external input 1 control monitor selector EXT 2 9 Send to pre listen control monitor selector PFL 10 Send to control monitor level adjusting potentiometer MONITOR LEVEL 11 Headphones selector switch H PHONES SEL PFL 12 Headphones volume level potenti...

Страница 27: ...input 2 by selecting 6 EXT 2 Pre listen by selecting 7 PFL The level of the signal or signals selected for monitoring is adjusted by the potentiometer 8 MONITOR LEVEL Note This monitor is disconnected when a BC 2511 module is activated in MICRO position and programmed to operate in studio area The output connector for the primary headphones is situated at the rear connector of the module the outpu...

Страница 28: ... AUX 1 4 Send to auxiliary 2 studio monitor selector 2 AUX 2 5 Send to external input 1 studio monitor selector EXT 1 6 Send to external input 2 studio monitor selector EXT 2 7 Send to pre listen studio monitor selector PFL 8 Principal studio monitor send level adjustment potentiometer MONITOR LEVEL 9 Principal headphone volume level adjustment potentiometer H PHONES 1 10 Secondary headphone volum...

Страница 29: ... output activating the switch 17 INTERCOM OUTPUT Note To avoid the effects of microphone feedback to the control loudspeakers the monitor signal level is attenuated when the control microphone is activated The intercom circuit input is activated by the switch 21 INTERCOM INPUT When an audio signal is received it is heard in the PFL monitors The audio signals generated by the oscillator circuit are...

Страница 30: ...s send to master 1 switch MASTER 1 9 Commands send to master 2 switch MASTER 2 10 Commands send to auxiliary 1 switch AUX 1 11 Commands send to auxiliary 2 switch AUX 2 12 Commands send to telephone 1 switch PHONE 1 13 Commands send to telephone 2 switch PHONE 2 14 Commands send to studio switch STUDIO 15 Commands send to primary headphones switch H PHONES 1 16 Commands send to secondary headphone...

Страница 31: ...rammed channels are disabled the BREAK and COMMON outputs will have a potential difference of 24 volts The functional diagram for the STUDIO circuit is similar to the channels that are programmed to activate the signal circuits This block also administers the CONTROL and STUDIO monitor cut The operation is associated to the activation of the signal circuits i e when the Control circuit output MAKE...

Страница 32: ...r I O CONNECTOR Operational outline diagram of the Remote Cut and Remote Pre listen circuit When the Remote Cut push button is activated all the p rogrammed input channels are deactivated see section 7 1 When the Remote Pre Listen push button is activated the pre listen for all the programmed channels are activated see section 7 1 9V 5V 5V REMOTE CUT PUSH BUTTON 0V REMOTE PRE LISTEN PUSH BUTTON Pi...

Страница 33: ... input 1 common 6H Left external input 2 V 7H Left external input 2 V 8H Right external input 2 V 9H Right external input 2 V 0H External input 2 common 1B Studio monitor output left V 2B Studio monitor output left V 3B Studio monitor output right V 4B Studio monitor output right V 5B Studio monitor common 6B Control monitor output left V 7B Control monitor output left V 8B Control monitor output ...

Страница 34: ...UTPUT 5 Note The console is connected by a multi strand cable with the relevant connectors and cross section for this specific purpose This cable must not be modified or changed However if a longer cable is required contact the AEQ S A Technical Department Maximum length is 2 5 meters 5 8 2 Description of Controls and Connectors REAR PANEL 1 Power supply switch POWER ON 2 AC power connector and fu...

Страница 35: ...el housing the console pre listen stereo loudspeakers and meters The meter panel houses 4 meters with stereo bar graph and simultaneous displays for monitoring the outputs from Master 1 MASTER 1 1 Master 2 MASTER 2 2 pre listen or pre listens activated PFL 3 and the parameters selected by the monitor module and SELECT 4 control see chapter 5 7 section 5 7 1 1 1 Master 1 output meter MASTER 1 2 Mas...

Страница 36: ...ter 0 25 dBv 6 1 4 Hybrid telephone IN OUT in BC 2533 Module Output Impedance 100 Ohms Output Level 4 dBv Fader Master 0 Fader Channel 0 phone channel send max Gain 2533 max Input Impedance 8 Kohms Input Range 18 dBv Fader max Master 0 25 dBv 6 1 5 External Inputs 1 and 2 in BC 2578 Module Electronic Symmetry Input Impedance 5 Kohms Input Level 1dB for 4 dBv in monitor output 6 1 6 Sends and Equal...

Страница 37: ...AEQ BC 2500 Radio Broadcast Mixing Desk 38 Note Master Output Level 4 dBv ...

Страница 38: ...master 0 all sends cut 95 dBm 20 Hz 20 KHz Fader master 70 all sends cut 6 2 2 Control Studio Monitor Outputs Control Monitor Output Impedance 75 Ohms Output Level 4 dBv Maximum Monitor Level Absolute Noise 72 dBv Headphone Output Impedance 70 Ohms Output Level 20 dBv Max H Phones Level 6 2 3 Intercom Input Impedance 4 Kohms Input Sensitivity 10 dBv Output Impedance 75 Ohms Output Level 20 dBv max...

Страница 39: ...esk 40 6 5 Dimensions 6 5 1 20 24 Module chassis diagram AEQ BC 2500 Mixer 20 24 module dimensional chassis diagram BC 2501FM BC2501 of 20 or 24 modules respectively Note All measurements in millimetres 310 485 65 800 956 310 590 834 990 ...

Страница 40: ... Activation of the signal circuit and cut the STUDIO zone P D P 7 On Deactivation of the signal circuit and cut the STUDIO zone P D P 7 Off Activation of the MUTE REMOTE P D P 8 On Deactivation of the MUTE REMOTE P D P 8 Off Activation of the PFL REMOTE P D P 9 On Deactivation of the PFL REMOTE P D P 9 Off Activation of MICRO input PHANTOM power supply P D P 10 On Deactivation of MICRO input PHANT...

Страница 41: ...dule I C board view 1 10 2 3 4 5 11 12 6 7 8 9 13 P D P defect positions P D P 1 Off P D P 2 On P D P 3 Off P D P 4 On P D P 5 Off P D P 6 Off P D P 7 On P D P 8 On P D P 9 On P D P 10 Off P D P 11 12 1C Off P D P 11 12 2C On P D P 11 12 3C Off P D P 13 On On Bridge installed Off Bridge not installed 0 0 0 0 ...

Страница 42: ...AEQ BC 2500 Radio Broadcast Mixing Desk 43 ...

Страница 43: ...cuit and cut the STUDIO zone P D P 11 On Deactivation of the signal circuit and cut the STUDIO zone P D P 11 Off Activation the MUTE REMOTE P D P 12 On Deactivation the MUTE REMOTE P D P 12 Off REMOTE A output when the contacts are open P D P 13 On P D P 14 Off REMOTE A output when the contacts are closed P D P 14 On P D P 13 Off REMOTE B output when the contacts are open P D P 15 On P D P 16 Off ...

Страница 44: ... D P 1 On P D P 2 Off P D P 3 On P D P 4 Off P D P 5 On P D P 6 Off P D P 7 On P D P 8 Off P D P 9 Off P D P 10 Off P D P 11 Off P D P 12 Off P D P 13 On P D P 14 Off P D P 15 On P D P 16 Off P D P 17 18 1C Off P D P 17 18 2C On P D P 17 18 3C Off P D P 19 On On Bridge installed Off Bridge not installed 0 0 0 0 1 2 3 4 5 6 7 8 17 18 10 11 9 12 19 13 14 15 16 ...

Страница 45: ...AEQ BC 2500 Radio Broadcast Mixing Desk 46 ...

Страница 46: ...On 33 and 34 Off Module programmed as output AUXILIARY 1 P D P 3 7 11 15 19 23 27 31 33 34 On Module programmed as output AUXILIARY 1 with BYPASS NETWORK option P D P 3 7 11 15 19 23 27 31 On 33 and 34 Off Module programmed as output AUXILIARY 2 P D P 4 8 12 16 20 24 28 32 33 34 On Module programmed as output AUXILIARY 2 with BYPASS NETWORK option P D P 4 8 12 16 20 24 28 32 On 33 and34Off Note Tw...

Страница 47: ... D P 10 Off On Off Off P D P 11 Off Off On Off P D P 12 Off Off Off On P D P 13 On Off Off Off P D P 14 Off On Off Off P D P 15 Off Off On Off P D P 16 Off Off Off On P D P 17 On Off Off Off P D P 18 Off On Off Off P D P 19 Off Off On Off P D P 20 Off Off Off On P D P 21 On Off Off Off P D P 22 Off On Off Off P D P 23 Off Off On Off P D P 24 Off Off Off On P D P 25 On Off Off Off P D P 26 Off On O...

Страница 48: ... AEQ TH 12 hybrid AIR2 P D P 10 Off P D P 12 On PDP11 Off Activation of pin 5 of the module sub d remote control connector as contact closer for AIR 1 function when an AEQ TH 02 hybrid is connected P D P 9 On P D P 7 Off PDP8 Off Activation of pin 3 of the module sub d remote control connector as contact closer for AIR 2 function when an AEQ TH 02 hybrid is connected P D P 12 On P D P 10 Off P D P...

Страница 49: ...AEQ BC 2500 Radio Broadcast Mixing Desk 50 Note 1 Two BC 2533 modules must never be programmed together as PHONE 1 Note 2 Two BC 2533 modules must never be programmed together as PHONE 2 ...

Страница 50: ...be programmed together as PHONE 2 P D P defect positions according to type of output selected PHONE 1 PHONE 2 P D P 1 On On P D P 2 Off Off P D P 3 On On P D P 4 Off Off P D P 5 6 2C On Off P D P 7 Off Off P D P 8 Off Off P D P 9 On On P D P 10 Off Off P D P 11 Off Off P D P 12 On On P D P 13 On Off P D P 14 Off On P D P 15 Off On P D P 16 On Off On Bridge installed Off Bridge not installed 0 0 0 ...

Страница 51: ...AEQ BC 2500 Radio Broadcast Mixing Desk 52 ...

Страница 52: ...ut signal send to MASTER 2 output P D P 21 22 23 24 On Time Top s input signal send to AUXILIARY 1 output P D P 25 26 27 28 On Time Top s input signal send to AUXILIARY 2 output P D P 29 30 31 32 On Oscillator output tone send to PHONE 2 output when sending to the PHONE output P D P 33 On Talk Back microphone send from the output PHONE 2 when sending to the PHONE output P D P 34 On Console with PH...

Страница 53: ...AEQ BC 2500 Radio Broadcast Mixing Desk 54 ...

Страница 54: ...P 5 On P D P 6 On P D P 7 On P D P 8 On P D P 9 On P D P 10 On P D P 11 On P D P 12 On P D P 13 On P D P 14 On P D P 15 On P D P 16 On P D P 17 On P D P 18 On P D P 19 On P D P 20 On P D P 21 Off P D P 22 Off P D P 23 Off P D P 24 Off P D P 25 Off P D P 26 Off P D P 27 Off P D P 28 Off P D P 29 Off P D P 30 Off P D P 31 Off P D P 32 Off P D P 33 On P D P 34 On 1 2 3 4 5 6 7 8 9 10 11 12 13 14 151 ...

Страница 55: ...AEQ BC 2500 Radio Broadcast Mixing Desk 56 ...

Страница 56: ...rn 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 Center This guarantee does not include...

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