SoundCraft B400 Music Mixer User Manual
Contents
1. L a5 131 L287GRP8 GR 06 32 288 07 33 L289 DE GRP6 08 34 290 BR GRP5 09 35 Ese 36 292 5H 124 1 37 293 5 I S 2 g GR i 3 39 5 ST SAL 4 40 296 S ST1 _ 1 5 41 L297 a 5 ST2L 2 6 42 98 S ST2 3 4 g M i 239 MNO M 5 2 29 2 5 9 45 a1 AU 1 B 20 4B 02 AU AUX2 7 21 47 AU AUS 8 48 Z AU s AUXA g 4 5 i 23 9 DE tas L20 24 2 AU iia 25 AUXE L21 51 07 AUX7 Ze AUX7 22 26 52 AUX AUX7 L23 27 53 Bg AUXB j ra UX8 2 AUXB 37 5 AUXB 25 29 SPA 29 SPAR L26 30 56 SPARE R Fitting Links Suitably sized hair pin links may be soldered into the appropriate through plated holes Take care to select the correct side when connecting a stereo pair For exam ple if you wanted to assign Source to Aux 3 then you would fit links L20 and L47 If you then wanted to assign Source 2 to Aux 4 which is a stereo pair then you would fit links L75 and L102 2 11 2 12 B400 Installation 3 Block Diagrams B400 Block Diagrams 3 1 Mono Input Block Diagram LINE REMOTE START gt 4 2 LINE gt 2 _ gt 4 2 REMOTE STOP illii MIC LIVE EXT MUTE CTL EXT VCA CTL 48V PHANTOM 30dBu TONE OPTION 3 Band Semi Parametric EQ EQ HF MF LF Cut Boost uim QE REV Centre Freq STUDIO MUTE STUDIO MUTE MONITOR DI2. Chassis Pin2 Hot Pin3 Cold Stereo Return R Chassis Pin2 Hot Pin3 Cold Stereo Return L Pin Chassis Pin2 Hot Pin3 Cold 4 13 4 14 RS5940 9 mm 4 HE E a m eo O O e o O gt gt lt jd o 6 000006 0 Stereo Group Module There are up to four Mono Group Modules in the console The module compris es a Group Master section and a Stereo Return section Stereo Return The stereo return normally receives inputs via two XLR sockets on the rear con nector panel BUS When the BUS switch is pressed the inputs to the stereo return section are dis abled and are replaced by the local Group output signal LEVEL The Level control adjusts the level of the stereo return or bus input depending on the position of the TAPE RTN switch pan The PAN control acts as a Balance control with a gain of 3dB at the centre posi tion and a drop of 10dB to left and right allowing adjustment of the signal position in the stereo image of the main mix The stereo return is muted when the MUTE switch is pressed 6 routine The post mute stereo signal may be routed by the appropriate switches to the Stereo Mix ST or the Group GRP for the module on which is located O u When the CUE button is depressed either the pre level control signal
3. 3 5 Communications Module Block Diagram SLATE SLATE TALKBACK OSCILLATOR CONTROL SLATE OSCILLATOR TONE 100 400 1k 10k SLATE PT o ESI OSCR OSCL 30dBu TONE 30dB N AIR CTL ON AIR CTL 2 CONTROL CIRCUIT TO INTERUPT OSC L OUTPUT TONE 5711 TONE ST R TOSTI TONE STI CTL 4 L SLATE TALK TONE MNTR DIM OPT 2 CTL 2 EXT CUE I P i TB TO OPT 2 Es 1 TBTOOPT1 OPT 1 CTL 1 amp 2 LJ T B MIC 09 e gt 92 L Fp GAIN TALK TO CLNFD gt gt DI TB EXT TALK BUS 522 2 TALK ST TALK ST TALK ST cT TALK TO STUDIO Ha AUX 4L R AUX 3 AUX 2 AUX 1 TO M BRIDGE GUEST THESE SIGNALS ARE C ROOM MON PHONES ROUTED FROM THE ST MODULE AND ST1 MON GUEST THE MONITOR MODULE PHONES L AUX 4 MON EXT MON L Ed D GUEST PHONES R EXT MON R gt STUDIO PHONES L PROD T B TO GUEST CTL STUDIO PHONES R PROD TB TO ENG PROD TB TO ENG VCA Do STUDIO gt I SPEAKER L PROD TB I P E gt VCA STUDIO gt 2 L SPEAKER R CTL PROD TB TO STUDIO CTL C3 STUDIO MUTE BL OPEN un dm O _ PROD SW TB PRODTB PIN ON MOTHERBOARD TO EXT CTL PROD TB TO ENG CTL PROD TB TO ENG CTL TALKTD L R CLN RTNR CLEANFEED R CLN RTNL CLEANFEED L 3 6 B400 Block Diagrams Monitor Module Block Diagram AUX MONITOR FEEDS
4. If the CUE button is pressed when the fader is already away from the fully down position the AFL PFL signal will be selected according to the setting of the AFL PFL master switch on the Monitor module When the CUE switch is pressed this will optionally trigger the remote start stop facility which has a set of relay contacts available via the rear panel D type connector The relay can be set to either latching or pulsed operation via internal jumpers enabling most types of machines to be remotely started and stopped Under no circumstances should mains voltages be placed on the contacts of the remote Start Stop relays RS5939 The PK LED monitors pre insert and post fade signal levels If either of these points rises to 6dB below clipping the LED will illuminate SP Signal Present The signal present circuit monitors the output of the mix amp The SP LED illumi nates when a signal is present on the Group Mix bus RR 0 66 6 8 5 2 H mz 5 a c o Li crt e o c oO T 3 4 12 B400 Functional Description Rear Connedor Panel MONO GROUP XLR type connectors are provided for the main audio connections to the module Pinouts are as follows B400 Functional Description Group Output Pin Chassis Pin2 Hot Pin3 Cold Insert Send Chassis Pin2 Hot Pin3 Cold Insert Return
5. The Group mix is fed to an internal switch which allows you to select the Insert Point as pre or post fade The default setting is pre fade When the INS button is pressed the signal path is routed via the Insert Return XLR When the INS button is released the signal path is routed internally The Group signal is always available on the Insert Send irrespective of the position of the INS switch wit The Mute may be activated by pressing the MUTE switch note that the group number is printed on the switch or by a remote mute signal available on the rear connector panel The associated LED glows to indicate that the remote mute is active Note that the Insert Send is never muted B400 Functional Description B400 Functional Description Fader The Fader controls the overall Group level with 10dB of gain in hand at the top of the fader A set of relay contacts to start an external machine is available on the rear connec tor panel These contacts close when the fader is away from the fully down posi tion Under no circumstances should mains voltages be placed on these contacts PAN PAN sets the level of the group signal feeding the Stereo Left and Right busses When ST is pressed allowing the group signal to be positioned within the stereo image When the control is turned fully right or left 3dB of gain is also applied to the opposite signal the centre applies OdB of gain to both signals SI Stereo
6. 5909 30 40 10 20 3 D Mono Input Module QD 4 The 48V switch applies 48V Phantom power to the MIC I P XLR on the rear con nector panel The switch illuminates to indicate that it is switched on The TONE switch replaces the mic line signal with the desk oscillator allowing you to check the operation of the module The switch illuminates to indicate that it is switched on Note that if the module is switched to TONE the monitor mutes and remotes start stop are disabled LINE The LINE switch when active selects the LINE I P as the module s signal source instead of the MIC I P XLR The switch illuminates to indicate that it is switched on can The rotary channel GAIN control provides continuous variation from 10dB tp 72dB mic gain and 10dB to 200B line gain Q PHASE The Phase of the input signal may be reversed by use of this switch The switch illuminates to indicate that it is active AUXILIARY SENDS Aux 4 is a Stereo Send The AUX 4 control sets the level of the send and the asso ciated PAN control adjusts the position of the signal within the stereo image The send is normally post fade but pressing the PRE switch configures the send as pre fade Aux 2 and 3 are mono sends with individual level controls and are normally post fade but may be reconfigured as pre fade by pressing the associated PRE switches The pre fade source is normally pre mute but may be s
7. ST MONITOR FEEDS CLEAR CUE MUTER 2 int L FROM FROM ST MODULES ST MODULE 1177 ST LEFT O P ST RIGHT O P ST MONO O P AUX 1 AUX 2 AUX 3 AUX 4 LEFT G INPUTS AUX 4 RIGHT SELECTED VIA THE SIX STEREO PAIRS SCRAMBLE CARD SPARE EXT GROUP 1 E GROUP 2 ne GROUP 3 GROUP 4 8 BALANCED GROUP 5 EXTERNAL B CO GROUP 6 L INPUTS E SELECT GROUP 7 GI GROUP 8 20 Co GROUP MONITOR FEEDS 8 BALANCED CI Rus FROM GROUP MODULES EXTERNAL B R INPUTS pg SELECT OVERPRESS RET T B E RET T B CTL PROD T B TO ENG df PROD T B PROD T B TO ENG CTL TO ENG CTL OVERPRESS CTL CUEL CUER CUE MNTR LEVEL vca CTL LEVEL CTL AFL AFL PFL AFL CTL CUE CTL CUE CLEAR A EXT MUTEL EXT MUTER F3 EXT LEVEL CONTROL ON AIR CTL STUDIO MUTE MNTR DIM B400 Block Diagrams A MUTE MUTE MON METER R LEVE T H MONO R RHS PHASE TO METERBRIDGE SPEAKER AMP tes UE se um VCA Lj CTL DIM ADJUST VCA MONO VCA SS 2 gt CUEQ CUEQ W PHONES LEVEL ENGINEER S LL PHONES ALT O MON 0 SPKR IW 1 RIGHT SE PKR 5 X 2 RIGHT 3 7 3 8 B400 Block Diagrams 4 Functional Description B400 Functional Description 4 1 4 2 a 5 H V GAIN LINE 60666000 6 49
8. US GUIDI E S OU nacratt This equipment complies with the EMC Directive 89 336 EEC For further details contact Harman International Industries Ltd Cranborne House Cranborne Road Potters Bar Hertfordshire EN6 3JN U K Tel 44 0 1707 665000 Fax 44 0 1707 660482 Harman International Industries Ltd 1997 1998 All rights reserved Parts of the design of this product may be protected by worldwide patents Part No ZM0215 Issue Soundcraft is a trading division of Harman International Industries Ltd Information in this manual is subject to change without notice and does not repre sent a commitment on the part of the vendor Soundcraft shall not be liable for loss or damage whatsoever arising from the use of information or any error con tained in this manual No part of this manual may be reproduced stored in a retrieval system or trans mitted in any form or by any means electronic electrical mechanical optical chemical including photocopying and recording for any purpose without the express written permission of Soundcraft It is recommended that all maintenance and service on the product should be car ried out by Soundcraft or its authorised agents Soundcraft cannot accept any lia bility whatsoever for any loss or damage caused by service maintenance or repair by unauthorised personnel Soundcraft Harman International Industries Limited Cranborne H
9. 4 26 RS5942 e n DI e Lj Co DI C4 Le QD MASTER AFL The Cueing system may be set to monitor PFL or AFL signals from the various CUE switches on the console This is done via the MASTER AFL switch which selects AFL mode when pressed QD AFLADI Note that when AFL is selected the AFL ADJ preset is switched into operation This preset allows you to trim the level set by the CUE MNTR LEVEL pot QD CLEAR CUE The various Cue switches may be electronically latched and unlatched by toggling the individual switches They may also all be unlatched via the CLEAR CUE switch Note that the CLEAR CUE switch illuminates when one or more cues are active and the CUE TO MONITOR switch is depressed B400 Functional Description Meterbridge Modules Meterbridge Speaker The meterbridge speaker is sourced from the Monitor Module and has its own local volume control Talkback Mic TALKBACK MIC The talkback mic socket is routed onto the Talk Bus via the Communications Module B400 Functional Description 4 27 4 28 CUE WARNING CUE OVERRIDE STEREO 1 STEREO 2 MONO EXTERNAL MONITOR STUDIO M S 20dB VCA EXTERNAL Meter Selector Panel This panel allows you to monitor a variety of console signals The meters which would be used in conjunction with
10. 3 MIC LIVE 2 Ch 3 7 Il etc 4 5 MIC LIVE 2 Ch 2 6 10 etc 6 7 MIC LIVE 2 Ch I 5 9 etc 8 9 Not used 10 Not used Not used 12 Not used 13 Not used Pin 14 5 l6 7 18 19 20 22 23 24 25 Function MIC LIVE Ch 4 8 12 etc MIC LIVE 1 Ch 3 7 Il etc MIC LIVE 1 Ch 2 6 10 etc MIC LIVE 1 Ch I 5 9 etc Not used Not used Not used Not used B400 Installation STEREO INPUT REMOTES Pin NO U1 N 10 12 13 Function REMOTE START 4 Ch 4 8 12 etc REMOTE STOP 7 4 Ch 4 8 I2 etc REMOTE START 4 Ch 3 7 Il etc REMOTE STOP 4 Ch 3 7 Il etc REMOTE START 4 Ch 2 6 IO etc REMOTE STOP 7 4 Ch 2 6 IO etc REMOTE START 4 Ch I 5 9 etc REMOTE STOP 4 Ch I 5 9 etc Not used Not used Not used Not used Not used Pin 14 5 l6 7 18 19 20 21 22 23 24 25 Function REMOTE START 3 Ch 4 8 12 etc REMOTE STOP 3 Ch 4 8 I2 etc REMOTE START 3 Ch 3 7 Il etc REMOTE STOP 3 Ch 3 7 Il etc REMOTE START 3 Ch 2 6 IO etc REMOTE STOP 3 Ch 2 6 IO etc REMOTE START 3 Ch 5 9 etc REMOTE STOP 3 Ch I 5 9 etc Not used Not used Not used Not used NOTE Each input slot may be fitted with a Mono or Stereo module and the pinouts for the last two connec tors may therefore be a combination of the two versions on some frames EXT LOGIC Pin Function GND 2 GND
11. changing internal jumpers Aux 4 pre fade source is always pre mute B400 Functional Description 099 of TRIM 10 H VP Cd L 1 m L1 L1 5 e 9 gt gt gt lt 2 gt lt gt c gt lt Bgm Buts E 8 n 60006 00 6 5900 a n s 8 gt 9 um amp ox ae o 1 Lo L 88 a o e 2 00000000 O 8888 B400 Functional Description ur The High Pass Filter is switched on when the button is pressed The switch illumi nates to indicate that it is switched on The filter has a slope of 18dB Octave and a cut off point of 100Hz QD Equaliser HF The Equaliser is a 3 band semi parametric design The HF shelving section provides 15dB cut or boost at OkHz O N The upper knob of the MF section allows you to cut or boost the Mid Range bell response filter by up to 15dB The Mid point frequency is sweepable using the lower knob between 500Hz and 8kHz The Q factor of the filter is fixed at 1 4 The LF shelving section provides 15dB cut or boost at 100Hz The EQ section may be switched in and out of circuit via the EQ switch The switch illuminates to indicate that it is switched in QD The BAL PAN pot allows the input signal to be positioned within the stereo im
12. or Soundcraft will repair or replace the defective components Any components replaced will become the property of Soundcraft Any Equipment or component returned will be at the risk of the End User whilst in transit both to and from the Dealer or Soundcraft and postage must be prepaid This warranty shall only be available if a the Equipment has been properly installed in accordance with instruc tions contained in Soundcraft s manual and b the End User has notified Soundcraft or the Dealer within 14 days of the defect appearing and C no persons other than authorised representatives of Soundcraft or the Dealer have effected any replacement of parts maintenance adjustments or repairs to the Equipment and d the End User has used the Equipment only for such purposes as Soundcraft recommends with only such operating supplies as meet Soundcraft s specifications and otherwise in all respects in accordance Soundcraft s recommendations Defects arising as a result of the following are not covered by this Warranty faulty or negligent handling chemical or electro chemical or electrical influences accidental damage Acts of God neglect deficiency in electrical power air conditioning or humidity control The benefit of this Warranty may not be assigned by the End User End Users who are consumers should note their rights under this Warranty are in addition to and do not affect any other rights to which they may be entitled aga
13. or the post mute signal depending on the position of the PFL AFL switch on the Monitor module is fed to the cue system The CUE button may be operated in latched mode press and release within 0 5 secs or momentary mode press and hold for more than 0 5 secs Group Section INS Insert The Group mix is fed to two internal switches 530 3 allows you to select the Insert Point as pre or post fade The default setting is pre fade When the INS button is pressed the signal path is routed via the Insert Return XLR When the INS button is released the signal path is routed internally The Group signal is always available on the Insert Sends irrespective of the position of the INS switch wit The Mute may be activated by pressing the MUTE switch note that the group number is printed on the switch or by a remote mute signal available on the rear connector panel The associated LED glows to indicate that the remote mute is active Note that the Insert Sends are never muted B400 Functional Description B400 Functional Description Fader The Fader controls the overall Group level with 10dB of gain in hand at the top of the fader A set of relay contacts to start an external machine is available on the rear connec tor panel These contacts close when the fader is away from the fully down posi tion Under no circumstances should mains voltages be placed on these contacts IMAGE WIDTH The i
14. section may be switched in and out of circuit via the EQ switch The switch illuminates when pressed to indicate that the EQ is switched in ur The variable frequency HIGH PASS FILTER is controlled by a rotary pot covering 32Hz to 500Hz Turning the control fully anticlockwise to the click stop position switches the filter out of circuit PAN The Pan control allows the input signal to be positioned within the stereo image of the main stereo mix The PANned signal is routed via the five buttons 21 at the top of the module to any combination of the four pairs of Groups 1 2 3 4 5 6 7 8 and to the stereo master bus ST Pan left sends the signal to odd numbered busses and pan right sends the signal to even numbered busses When the PAN switch is released the pre pan signal is sent to all groups on The channel is turned on when the ON switch is pressed or may be muted under the control of a remote mute signal via the 25 way D type connector on the rear panel When the channel is ON and the fader is open this is used as a cough mute in mic mode Also in mic mode when the fader is raised the relevant monitors will be muted or dimmed depending on the internal jumper settings A relay con tact output pair for a mic live indicator is also provided on the D type connector The Fader Open control signal can be set via an internal jumper to Rem Com on the Stereo Master fader Monitor mutes will therefore not be activated unti
15. 3 Prod T B to Ext CTL I P 4 Prod T B to Eng CTL I P 5 Option 2 CTL 2 6 Option CTL 2 7 On Air o p 8 On Air i p 9 Not Used 10 Ext Mntr Level CTL I P RET T B CTL I P 12 Ext CTL L I P 13 Ext mute L I P METERBRIDGE Pin 14 15 16 17 18 19 20 21 22 23 24 25 Function GND Prod T B Stud CTL Ext mute I P studio spkr Talk to Ext CTL O P Option 2 CTL 1 Option CTL 1 On Air O P 2 On Air I P 2 Not Used Ext CUE Level CTL I P Ext A B CTL R I P Ext mute R I P This connects via a ribbon cable to the Monitor Comms D type on the meterbridge B400 Installation NO U1 WIN Not used ST Mntr Meter MONO Mntr Meter not used not used Not Used TB Mic Studio Meter R Ext VCA Warning LED Monitor Meter R O Press Ctl Cue Meter R Cue Ctl 14 5 l6 7 18 19 20 21 22 23 24 25 Not used ST Mntr Meter MONO Mntr Meter not used not used GND TB Mic 1V5 Studio Meter L Monitor Meter L O Press Meter Squawk Feed Cue Meter L 2 7 Jumper Options DEFAULT MONO INPUT SWI9 Released Insert Point is Pre fade see links to 4 Depressed Insert Point is Post fade links to 4 have no effect but they must be present LK1 4 Pre fade Insert 1 2 Pre Eq 2 3 Post Eq 1 2 2 Bell 2 3 Shelf
16. ALK TONE TO MONITOR amp M BRIDGE GROUP OUTPUT PROD T B CTL SLATE GRP ENBL ON AIR CTL ROUTING TO MAIN STEREO MIXES ST LEFT ST RIGHT CUEL CUE R OVERPRESS OVERPRESS CTL CUE CTL CUE CLEAR PFL AFL CTL AUX1 gt M AUX2 AUX283 CIRCUITS ARE IDENTICAL TO AUX1 gt l AUX3 AUXA LEFT CN K AUX4 RIGHT 3 4 B400 Block Diagrams Stereo Master Module Block Diagram FADER INSERT ST L MIX gt SEND FADER DOWN A INSERT RETURN Ie TO MONITOR amp LIMITER METERBRIDGE IN LIMITER 2 H HG LN TRANS Y ST FORMER LEFT pn 1 cene Coe au REM COM REMOTE START MONO OUTPUT DETECT A NALE EDAC A CONNECTOR TO MONITOR amp A METERBRIDGE ST R MIX gt EXT MUTE ON AIR CTL MUTE INSERT SEND 571 MASTER ONLY DONN QOO POWER VOLTAGE RETURN MONITOR TO MONITOR amp METERBRIDGE OUTPUT ON AIR NX ST TRANS CONTA FORMER RIGHT CONTACTS OPTION OUTPUT AUX 2 AND AUX 3 CIRCUITS ARE IDENTICAL TO AUX1 MAST METERBRIDGE MASTER LEVEL AUX 1 OUTPUT EDAC un CONNECTOR CUEL 1 CUER CUE CTL TO MONITOR amp AUX 4 MASTER LEVEL METERBRIDGE AUX 4 L OUTPUT AUX 4 L MIX EDAC I CONNECTOR I I CUE 1 AFL i i CUE CTL 5 I TO MONITOR amp i l METERBRIDGE um AUX 4 R OUTPUT AUX 4 R MIX EDAC CONNECTOR B400 Block Diagrams
17. BU obo a ERE RES qe ARRIERE arbe aes 28dBu max Mono Direct Out XLR lt 600 balanced OGBU avait 28dBu max 25dBu into 6000 Stereo Direct Out XLR lt 600 balanced i51 na 28dBu max 25dBu into 6000 Group Insert Send XLR lt 600 balanced Group Insert Return XLR gt 10kQ balanced Group Output XLR lt 600 balanced 28dBu 26dBu into 6000 Aux Output XLR 60 balanced i T 28dBu max 26dBu into 6000 Monitor Output XLR lt 600 balanced DOBU obese seen 28dBu max 26dBu into 6000 Main O P Insert Send XLR 60Obalanced HOM T 28dBu max Main O P Insert Return gt 10kQ balanced OdBu 28dBu max 26dBu into 6000 Main Output XLR lt 600 balanced ji T T 28dBu max 26dBu into 6000 Filter and EQ PICHO INDUC culatta Stereo Input Filters High Pass Filter Freq OFF 532 5002 iustus ound eine eter EE ERE RRX S 80Hz Slope OCE sisi I 2dB Oct EQ High Frequency Freq casses exer Fixed 10kHz Gain dE C 15dB Q Shell Belles seri Ru eed BENE Shelf Mid Frequency Freq 500Hz to 500Hz to 8kHz Gain dh 15dB Q ERRE RR PRO Low Frequency Freq Di A 00Hz
18. Connectors EDAC I Circuit Number CCT I CCT 2 CCT 3 CCT 4 CCT 5 CCT 6 CCT 7 CCT 8 CCT 9 CCT I0 11 CCT 12 CCT 13 CCT 14 CCTI5 6 CCTI7 CCTI8 CCTI9 CCT20 21 22 23 CCT 24 EDAC 2 Circuit Number CCT CCT 2 CCT 3 CCT 4 CCT 5 CCT 6 CCT 7 CCT 8 CCT 9 CCT 10 11 12 CCTI3 4 15 l6 CCT 17 18 19 CCT 20 CCT 21 CCT 22 CCT 23 CCT 24 Function not used Ext Cue I P Prod T B I P T B to Ext Oscillator L Oscillator R Ext Mon I P L Ext Mon I PR Stud Spkr L Stud Spkr R PHIL Studio PHIR Studio T B to opt T B to opt 2 Ext IL Ext IR Ext 2L Ext 2R Ext 3L Ext 3R Ext 4L Ext 4R PH2L Guest PH2R Guest Function Mono Aux Aux 2 Aux 3 Aux 4L Aux 4R Ext 5L Ext 5R Ext 6L Ext 6R Ext 7L Ext 7R RTN T B T B Line I P STIL STIR Mono No connection No connection No connection No connection No connection Ext 8L Ext 8R 2 5 2 6 Rear Connector Panel D Type Connectors There are a number of 25 way D type female connectors depending upon the number of input channels on the rear connector panel The connector layout varies with the configuration of input modules and mono and stereo input modules differ in the facilities available Each block of four Mono inputs has one D type connector for external mutes and one D type for Mic Live Remotes Each block of four Stereo inputs has on
19. GAIN con trol The talkback signal may be routed to various destinations as follows n Pressing this switch routes the talkback signal to the External Talkback output on the rear panel EDAC connectors AUX1 4 The talkback signal may be routed to any combination of the four Aux outputs by pressing the appropriate switch TALK TO GROUPS Pressing this switch routes the talkback signal to all groups simultaneously Note that each individual Group is jumper selectable to enable the talkback signal to either completely replace the group signal or mix with it QD ON AIR LOCK OUT Talkback is also available to Studio or the Stereo Master as described below except when the ON AIR switch on the Master module is pressed The ON AIR LOCK OUT LED illuminates to show that the talkback to these outputs is dis abled s Pressing the ST switch routes the talkback to the Stereo Master except when the ON AIR LOCK OUT LED is illuminated QD STU TLK LEVEL This preset allows you to adjust the level of the talkback signal to the studio speak ers and the studio phones TALK TO STUDIO Pressing the TALK TO STUDIO switch routes the talkback signal to the studio speakers and the studio phones Note that the studio speakers will be muted by the On Air switch ON AIR LOCK OUT illuminated but talkback is still sent to studio phones Headphones Studio Speakers There are two sets of studio headphones outputs studio phones
20. Gain OGD osc ders aus bots es Boe eee oe ee 15dB Q Shelf Auxiliaries isotta Pre Post fade switched 2 MONG Pre Post fade switched 3 eno 344206 Pre Post fade switched 4 Stereo Separate Level Pan Pre Post fade switched in stereo Oscillator Switchable 100Hz 400Hz 1kHz 10kHz plus 30Hz Slate override Frequency Response Any input into any output Measured at 50dB gain 0 0 5dB 20Hz 20kHz THD and Noise Mic input to Group Measured at 20dBu output 0 196 20Hz 16kHz or Main output Measured at OdBu output lt 0 025 kHz E ee 0 0596 20Hz 16kHz Mic input EIN 22Hz 22kHz bandwidth unweighted lt 128 5dBu 1500 source Mix bus output noise 32ch routed ii Less than 80dBu Mix Bus noise no channels routed i Less than 90dBu Eine MOIS d n prie Less than 88dBu 5 2 B400 Specifications CMRR Mono Input Stereo Input Min Gain Max Gain Mic Input 65dB 50Hz 90dB 50Hz 55dB IkHz 80dB IkHz 50dB 10kHz 60dB 10kHz Line Input 45dB IkHz 55dB IkHz 40dB 10kHz 50dB 10kHz Crosstalk Channel muting 95dB IkHz 90dB IkHz 90dB I0kHz 85dB I0kHz Channel fader attention 90dB IkHz 90dB IkHz 85dB I0kHz 85dB I0kHz Note These figures are typical of perform
21. J3 Meter Input 2 Pre EQ 2 3 Pre Fade J4 Stereo Aux 4 pre fade source 2 Pre mute 2 3 Post mute J5 Mono Aux l 3 pre fade source 2 Pre mute 2 3 Post mute Je Dir O P via Aux Level pot 1 2 Dir O P 2 3 J3 setting Logic SW21 A Closure disables dual action of Cue sw Open SW21 B Closure enables Cue Cancel from fader open Closed 5 2 Open enables Rem Com mic mode Closed SW21 D Closure enables latching start in line mode Open SW2 E Closure enables momentart start in line mode Closed SW21 F Closure enables start stop function from PFL Closed SW21 G Closure for mic live studio mute Closed SW21 H Closure for mic live control room mute Open STEREO INPUT Audio JI 2 Dir output source L R removed on Telco 1 2 Post fade 2 3 pre mute J3 4 Meter source L R 1 2 Post fade 2 3 Pre EQ J5 6 Aux 4 pre fade source L R 2 Post mute 2 3 Pre mute 17 8 Aux 1 3 pre fade source L R 2 Post mute 2 3 Pre mute Telco Version on Sub Board JI 2 Dir O P pre fade source L R 1 2 Post mute 2 3 Pre mute Input mode 1 2 Telco CLNFD 2 3 Dir O P 2 8 B400 Installation Logic SW21 A Closure disables dual action of Cue sw Open SW21 B Closure enables Cue Cancel from fader open Closed SW21 C Open enables latching start line Open SW21 D Closure enables momentart start in line Closed SW21 E Closure enables latching start in line 2 from fader On and
22. M MONITOR DIM REM COM gt INSERT 7 SEND REM COM o PEAK Note the Insert Point may be DETECT configured to be in one of two o other places which are marked thus INSERT 9 RETURN DIR O P AUX 1 PAN GROUPS to groups d 7 6 5 4 3 2 1 STLEFT ST RIGHT AUX1 POT PRE MAY BE SWITCHED Dmecrourur DIRECT DIRECT uc OUTPUT OUTPUT ROUTING gt gt CONTROL SLATE TALK TONE SLATE CTL ON AIR CTL AFL PFL CONTROL OG CLEANFEED L CLEANFEED R CUEL CUE R OVERPRESS OVERPRESS CTL CUE CTL CUE CLEAR PFL AFL CTL I AUX1 POT 1 MAY BE SWITCHED I TO CONTROL I DIRECT OUTPUT AUX1 CN AUX2 CN AUXS CIRCUIT IS IDENTICAL TO AUX2 PRE AUX4 LEFT AUX4 RIGHT 3 2 B400 Block Diagrams tereo Input Block Diagram INPUT 30dBu TONE B A GS TELCO OPTION Option MONO R TONE Q LEFT INPUT _ T O I a m MONO L 2 ption Q 2 LA A 1 RIGHT INPUT 0 AI Es E STUDIO MUTE 92 MONITOR DIM REM COM TO PEAK DETECT CIRCUIT a STUDIO MUTE START 1 se 3 Band EQ RELAY CONTROL MONITOR DIM REMOTE STOP 1 x TO PEAK DETECT CIRCUIT REMOTE B START 2 REDIRECT OPTION x REMOTE b gt _ STOP 2 E Sa L 1 TO PEAK DETECT CIRCUI
23. Modules in the console The module compris es a Group Master section and a Stereo Return section Stereo Return The stereo return normally receives inputs via two XLR sockets on the rear con nector panel TAPERTN BUS When the BUS switch is pressed the inputs to the stereo return section are dis abled and are replaced by the local Group output signal The Level control adjusts the level of the stereo return or bus input depending on the position of the TAPE RTN switch When the input is selected as TAPE RTN this pot acts as a Balance control with a gain of 3dB at the centre position and a drop of 10dB to left and right When BUS is pressed the source is the mono group mix and in this mode the PAN pot acts as a PAN left and right allowing the signal to be positioned in the stereo image of the main mix MUTE The stereo return is muted when the MUTE switch is pressed ROUTING The post mute stereo signal may be routed by the appropriate switches to the Stereo Mix ST or the Group GRP for the module on which is located de When the CUE button is depressed either the pre level control signal or the post mute signal depending on the position of the PFL AFL switch on the Monitor module is fed to the cue system The CUE button may be operated in latched mode press and release within 0 5 secs or momentary mode press and hold for more than 0 5 secs Group Section INS Insert
24. PFL Open SW21 F Closure enables momentary start in line 2 Closed SW21 G Closure enables line momentary start stop from PFL active only when CUE is pressed Closed SW21 H Closure enables line 2 momentary start stop Closed from PFL active only when CUE is pressed MONO GRP JI Remote Common A local B rem com J2 Talkback to Group replaces or mixes with Prog Fit replaces Omit mixes J3 Slate replaces or mixes with Prog Fit replaces Omit mixes J4 ON AIR kills Talkback Enable A No effect B kills J7 Aux 1 3 pre fade source A Pre mute B post mute Je Stereo Aux 4 pre fade source A Pre mute B Post mute SW30 Internal Insert Pre post selection Released Pre fade Pressed Post fade STEREO GRP JI Remote Common 1 2 local 2 3 rem com J2 Talkback to Group replaces or mixes with Prog Fit replaces Omit mixes J3 Slate replaces or mixes with Prog Fit replaces Omit mixes J4 ON AIR kills Talkback Enable 2 No effect 2 3 kills 19 10 Aux 4 pre fade source 2 Pre mute 2 3 post mute JI 12 Aux 1 3 pre fade source 2 Pre mute 2 3 Post mute SW30 31 Internal Insert Pre post selection L R Released Pre fade Pressed Post fade B400 Installation 2 9 STEREO MASTER JI Remote Common 1 2 Local 2 3 Rem com J2 3 Mono Output post fade limiter post limiter 1 2 Post limiter 2 3 Pre limiter J4 Talkback replaces or mixes with Progra
25. T gt 2x3 INPUT RI PEAK DETECT PEAK LED LED METER TO PEAK DETECT CIRCUIT TO PEAK 00000000 DETECT CIRCUIT VCA VCA FADER VCA CONTROL OVER PRESS OPTION FADER CLOSED TO PEAK DETECT CIRCUIT _ ST LEFT ST RIGHT LEFT FEEDS Sub BOARD OPTION EVEN GRPS 79 gt WA OO NOT DIRECT gt OUTPUTL VIA EDAC DIRECT gt OUTPUT VIA EDAC METER 4 PRE O P LEVEL T B PROD T B PROD T B CTL TALK BUS SLATE TALK TONE SLATE CTL ON AIR CTL a CLEANFEED L CLEANFEED R CLN CLN RTNR CUEL CUE R OVERPRESS OVERPRESS CTL CUE CTL CUE CLEAR PFL AFL CTL PRE A AUX1 e a AUX2 amp 3 CIRCUITS ARE a a IDENTICAL TO AUX1 oe I 8 ALIX4 di M C AUX AUX4 LEFT l A AR AIXA RIGE AUX4 RIGHT B400 Block Diagrams 3 3 Mono Group Block Diagram LEFT STEREO gt RETURN RIGH REMOTE e START 4 EXT MUTE CTL CONTROL GROUP MIX NOTE the Group Mix carries one of the 8 group mixes depending upon its position in the console INSERT gt gt INSERT Note the Insert Point may be RETURN configured to be in an alternative place which is marked thus REM COM pC e The pan left signal is routed to odd numbered groups and the pan right signal is routed to even numbered groups TALK BUS SLATE T
26. The panned signal may be routed to the master stereo mix by pressing the ST switch The mono Group signal is also routed to the Group Output XLR on the rear con nector panel unaffected by PAN or ST switches AUXILIARY SENDS There are four AUXILIARY SENDS with individual level controls Aux 1 2 and 3 carry a mono sum of the channel signal and Aux 4 is fed in stereo with the post pan signal All Aux Sends are normally post fade but may be selected as pre fade by pressing the associated PRE switches When Aux 4 is switched to pre fade both left and right receive the mono pre fade signal The pre fade source for the Auxiliaries is normally pre mute but may be selected as post mute by changing internal jumpers One jumper sets the source for Aux 1 3 and a separate jumper sets the source for Aux 4 Cue The cue system is activated by pressing the CUE button The CUE button may be operated in latched or momentary mode depending upon how long you hold it down you press and release within approximately 0 5 seconds the button will latch If on the other hand you press and hold for more than 0 5 seconds then the cue will remain momentary When the CUE switch is active and the fader is in its fully down position the PFL signal will be put onto the Cue L amp R busses irrespective of the AFL PFL master setting on the Monitor Module The CUE button may be optionally reset by moving the fader away from the fully down position
27. age of the main mix The Balance control automatically becomes a PAN control if either or both the L or R switches are selected and at this point the PAN LED will illuminate In PAN mode the left or right signal may be infinitely attenuated by pan ning hard right or hard left this also applies 3dB of gain to the opposite signal the centre applies OdB of gain to both signals In BAL mode the control will bal ance the stereo signal i e the centre position gives OdB gain to both left and right whilst hard left or hard right provides 3dB and 10dB to the appropriate signals QD on The channel is turned on when the ON switch is pressed or may be muted under the control of a remote mute signal via the 25 way D type connector on the rear panel GD EXT MUTE LED The EXT MUTE LED glows to indicate that a remote mute is active see above ce The cue system is activated by pressing the CUE button but the logic functions depend on whether Line A or Line B TLCO is selected Line A Mode In Line A mode it functions in the same way as the mono input in Line mode The CUE button may be operated in latched or momentary mode depending upon how long you hold it down If you press and release within approximately 0 5 sec onds the button will latch If on the other hand you press and hold for more than 0 5 seconds then the cue will remain momentary When the CUE switch is active and the fader is in its fully down position the stereo PFL
28. al Description Rear Connedor Panel STEREO GROUP XLR type connectors are provided for the main audio connections to the module Pinouts are as follows Insert Send Pinl Chassis Pin2 Hot Pin3 Cold Insert Return Pinl Chassis Pin2 Hot Pin3 Cold Stereo Return R Pinl Chassis Pin2 Hot Pin3 Cold Stereo Return L Pinl Chassis Pin2 Hot Pin3 Cold B400 Functional Description 4 17 4 18 o DS D gt gt lt o m DE z POWER SUPPLY STATUS PHANTOM 7 awo Lose O LJ ON AIR gt o m Ds x x e gt N gt gt lt o m DS z red ie 99000508999 6 R NI 8 Nears OOOO Stereo Master Module POWER SUPPLY STATUS The three LEDs provide visual confirmation that the 48V phantom power 17V amp 17V Audio Supplies and the 5V Logic Supply are all present ON AIR The ON AIR switch when activated will close a set of normally open relay con tacts It also disables the oscillator and some talkback facilities provided by the Communications Module The On Air switch may also be operated externally via the opto isolated connec tions on the rear panel Aux Master Section Aux MASTERS Master controls are provided for each of the four auxiliaries The rotary control sets the final output level and the associated AFL
29. ance in a normal electromagnetic environment Performance may be degraded in severe conditions All measurements refer to electronically balanced inputs and outputs with VCAs enabled Input and output transformers may affect these specifications B400 Specifications 5 3 5 4 B400 Specification Module Signa Conn Pin Nom Level Max Level Impedance PIn 1 Chassis Mono Mic Female Pin 2 Signal Hot 72 to 10dBu 20dBu gt 1 5KQ Input XLR Pin 3 Signal Cold PIn 1 Chassis Line Female Pin 2 Signal Hot 20 to 10dBu 28dBu gt 10kQ XLR Pin 3 Signal Cold Stereo Left Right Female Pin 1 Chassis 20 to 10 28dBu gt 10kQ Input A amp B XLR Pin2 Signal Hot Pin 3 Signal Cold Mono Tape Female i i 20 to 10dBu 28dBu gt 10kQ in 2 Signal Ho ARP SLA Pin 3 Signal Cold Comms Female 1 Chassis 60 to 25dBu gt 1 5kQ XLR Pin 2 Signal Hot Pin 3 Signal Cold Mono MiB Send Male Send 0dBu _ 1 260 Send 600 Input su Return OdBu 28dBu Return gt 10kQ in 2 Signal Ho Mono Send amp Pin3 Signal Cold Send OdBu 26dBu Send lt 60Q Group Return Famale Return 28dBu Return gt 10kQ PIn 1 Chassis Stereo a XLR Pin 2 Signal etu Pin 3 Signal Cold Master Mono Direct Male 1 Chassis OdBu 26dBu 600 Input Output XLR Pin2 Signal Hot into 1 Pin 3 Signal Cold Mono Group Mal
30. and guest phones plus a studio speaker output There is a choice of inputs to the three out puts as described below Headphones Studio Speaker source The four switches select the source for the headphones studio speakers and can be CRM i e whatever the control room monitor is sourcing via the Monitor mod ule the Stereo Master Aux 4 or and external source via the rear panel EDAC connector B400 Functional Description Q Q METERBRIDGE O O O gt OQ O 0 OO O OQ Q O O gt OO OO OO 0 COO O OOO OOO OO OO 0 0 EXT LOGIC Q Q B400 Functional Description GD GUEST PHONES This control sets the level of the Guest Heaphones output The source is selected as described in 16 above QD STUDIO PHONES This control sets the level of the Studio Heaphones output The source is selected as described in 16 above If TALK TO STUDIO is active see 15 above the stereo master signal will be routed in mono to the left side of the headphones with talkback routed to the right A producer to studio input is also available to the phones with audio input and control via the rear panel EDAC connector and external logic connector This signal is routed left with talkback on the right whenever it is present LEVEL The LEVEL control sets the level of the Studio Speaker output This
31. assis Pin2 Hot Pin3 Cold Insert Send Chassis Pin2 Hot Pin3 Cold Insert Return Chassis Pin2 Hot Pin3 Cold Line Input Chassis Pin2 Hot Pin3 Cold Mic Input Chassis Pin2 Hot Pin3 Cold 4 5 099 P 9 4 6 00006 6 6 66 6 9000 N DI L1 C4 TRIM 100 6 BU 3 L3 to 9 r m LJ DI 5 e aC gt lt gt gt lt gt NE gt lt 5 gt c gt lt 3 otal a a B8 e See _ amp n 8 UU 8 Qo P P Op amp 6752274 A R CUE Stereo Input Telco Module TONE The TONE switch applies a 60dBu signal to the module s pre amplifier circuit This allows you to check the operation of the module The switch illuminates to indicate that TONE is active Note that if the module is switched to TONE the monitor mutes and remotes start stop are disabled SOURCE When the L and the R switches are both released the stereo pairs of the sources are routed normally in stereo However if the L switch is depressed then the left signal is fed in mono to both sides of the channel Similarly the right signal is routed to both sides if the R switch is pressed If both switches are depressed then a mono mix of left and right is fed to both sides of the channel ws 0 The PHASE of the right hand input signal may be inverted by use o
32. be either an 2 3 No signal external cue input signal or no signal J3 Talkback to Studio Speakers 2 Mute kills T B 2 3 T B overrides J4 T B to Studio Speakers mixes or replaces Prog 1 2 Mixes 2 3 Replaces J5 6 Engineer talkback to cleanfeed L R busses 2 Enabled 2 3 Disabled B400 Installation B400 Installation Internal Monitor Source Selection The DESK A bank of switches on the Monitor Module allows you to select of 6 internal signals as the internal monitor source The 6 are selected via the scramble card SC3556 in the console The appropriate section of this PCB s silk screen is reproduced below The six signals may be chosen from Groups to 8 the Stereo Mix ST a mono sum of the Stereo Mix or Aux to Aux 4 There is also a spare left and spare right feed which may be used to monitor any suit able point in the console The Scramble Card used is common to the larger B800 console and the legending corresponds as follows Aux 2 legend Aux Aux 4 legend Aux 2 Aux 6 legend Aux 3 Aux 8 legend Aux 4 stereo ST2 legend ST The Layout of the card is shown below
33. button allows you to listen to the After Fade Signal via the Cue System Stereo Master Section Ins When the INS Insert button is depressed the signal paths left and right are routed via the insert return XLRs there is a separate XLR for the left and the right signal When the INS button is released the signal paths are routed internally Note that the signals are always available on the insert send XLRs irrespective of the position of the INS switch LIMITER The limiter is located post insert THRESHOLD The 4 position rotary THRESHOLD switch sets the signal level in dBr at which the limiter starts operating GAIN Gain Reduction The 8 LED GAIN REDUCTION meter shows the extent to which the limiter is reducing the gain FAST ATIK Fast Attack The FAST ATTACK switch gives a choice of attack times Omsec when the switch is released 0 5msec when the switch is depressed REL Release The RELEASE control allows you to select a limiter release time from 200msecs to Osecs The AUTO switch gives a preset release time of one second with a 2 stage release action Pressing the LIMITER IN switch places the limiter in circuit B400 Functional Description B400 Functional Description Mono Output The mono output may either be derived from a mono sum of the pre mute pre insert left and right signals and therefore is also unaffected by the limiter or by changing internal jumpers
34. ciated LEDs illuminate when the external mutes are active QD DM The left and right monitor speakers may also be dimmed by pressing the DIM switch The amount that the signal is attenuated is variable between 0 and 30dB by an internal preset Monitor dimming may also occur as a result of other opera tions e g use of talkback and in these instances the EXT LED illuminates when the dim is active The Cueing System A Cue Speaker is fitted into the overbridge as standard with its own level control The Cue Speaker is fed with Overpress Cue signals if the Overpress Option is fit ted the Return Talkback signal and if the relevant internal jumpers are config ured appropriately a mono sum of the Cue L and R signals this mono sum is over ridden by the Overpress facility if it is fitted QD RETN T B LEVEL The Return Talkback level is adjusted via the RETN T B LEVEL control QD CUEMNTR LEVEL A stereo pair of Cue Speaker outputs are also provided on the rear connector panel The output level of these outputs is adjusted by the CUE MNTR LEVEL control The Cue speaker outputs carry a mix of any PFLs AFLs via the Cue L and R busses These signals will be overridden by the Overpress facility if fitted provid ed that the relevant internal jumpers are configured appropriately CUETO MONITOR The Cue L and R signals may be switched from the Cue Speakers to the Monitor Speakers by pressing the CUE TO MONITOR switch 4 25
35. e Pin 1 Chassis OdBu 26dBu 600 Pin 3 Signal Cold Stereo ST Left Pin 1 Chassis OdBu 26dBu 600 Master amp Right Pin 2 Signal Hot into 1k Q Pin 3 Signal Cold Monitor CueQ Male Pin 1 Chassis OdBu 26dBu 600 SPKRL amp R XLR Pin 2 Signal Hot into 1k 2 Pin 3 Signal Cold SPKR Male Pin 1 Chassis OdBu 26dBu 600 1 2L amp R Pin2 Signal Hot into 1kQ Pin 3 Signal Cold Headphones TRS Tip Left OdBu 20dBu 500 Output 1 4 Jack Ring Right into 6000 Sleeve Ground Edac Osc TB 26dBu Phones into 1kQ amp Spkr Outputs 4 26dBu Send 60 28dBu Return gt 10kQ Send OdBu Return OdBu Nominal LINE Level can be either odBu or 6dBu Europe B400 Specifications
36. e D type connector for external mutes and one D type for Remote Stop Starts The diagram opposite shows the pin labelling as viewed from the outside of the console The pin outs of the various D types are given below REMOTE 25 Way D Types Pin Function Channel 4 8 12 etc Grp 3 Grp 7 EXT MUTE active low 2 STOP 2 n o relay contact 3 REMOTE START 2 relay contact Channel 3 7 etc Grp 2 grp 6 4 EXT MUTE 5 STOP7 2 n o relay contact 6 REMOTE START Z2 n o relay contact Channel 2 6 10 etc Grp 1 Grp 5 ST 7 EXT MUTE 8 STOP 2 n o relay contact 9 REMOTE START 2 n o relay contact Channel 5 9 etc Grp 4 I0 EXT MUTE STOP 2 n o relay contact 12 REMOTE START 2 n o relay contact 13 not used Notes GRP amp ST Master modules do not utilise the stop function X X 25 14 5 l6 7 18 19 20 21 22 23 24 25 Function VCA CTL 0V 0dB 5V 00 STOP relay contact REMOTE START relay contact VCA CTL STOP I relay contact REMOTE START relay contact VCA CTL STOP I relay contact REMOTE START relay contact VCA CTL STOP I relay contact REMOTE START 1 relay contact Ground Ref for EXT MUTE and VCA CTL is on EXT LOGIC D type connector MONO INPUT MIC LIVE REMOTES Pin Function MIC LIVE 2 Ch 4 8 12 etc 2
37. elected as post mute by changing internal jumpers Dr Pressing DIR switches the level pot into the direct output circuit following the pre post selection and mutes the send to the Aux bus Note that the Direct Output signal may be replaced by slate tone or talkback from the Communications module if required Ins When the INS Insert button is depressed the signal path is routed via the insert return XLR When the INS button is released the insert is bypassed Note that the signal is always available on the insert send XLR irrespective of the position of the INS switch The Insert Point may be configured to be pre post EQ or post fade via an inter nal pcb mounted switch and jumpers Equaliser HF The Equaliser is a 3 band semi parametric design The upper larger knob of the HF section allows you to cut or boost the HF shelv ing filter by up to 15dB The Cut off frequency is sweepable using the lower knob between and l6kHz B400 Functional Description 66000 6000 6 6 30 988 8 B400 Functional Description gt wr The upper larger knob of the MF section allows you to cut or boost the High Mid Range bell response filter by up to 15dB The Mid point frequency is sweepable using the lower knob between 250Hz and 4kHz The Q factor of the filter is fixed at 4 The LF knob provides 15dB cut or boost of the LF shelving filter n The EQ
38. etails The ANCILLARY METERS D type connector carries the Groups and Auxes into the meterbridge The actual connections used will depend on the number of ancil lary meters which are fitted The connections are Ground 14 Ground 2 Group 8 5 Group 7 3 Group 6 l6 Group 5 4 Group 4 17 Group 3 5 Group 2 I8 Group 6 Not Used 19 Not Used 7 Not Used 20 Not Used 8 21 Aux 9 22 Aux 2 10 23 3 24 12 Aux 4L 25 Aux 4R 13 Not Used The EXTERNAL INPUTS XLRs are also routed to the Monitor Selector PCB The inputs here may be monitored on the Meters which are associated with the Monitor Selector PCB There are also 2 additional XLRs these are for future expansion 2 3 Rear Connector Panel EDAC Connectors There are two female 90 way EDAC connectors on the rear connector panel The illustration below shows the pin labelling as viewed from the outside of the console The pins are listed in circuits below the circuit functions for each EDAC are shown on the following pages HI LO GND CCT A B C CCT2 H J K CCT 3 R S T CCT 4 X Y Z CCT 5 AE AF AH CCT 6 AM AN AP CCT 7 BJ BK BL CCT 8 BS BI BU CCT 9 BY BZ CA CCTIO CF CH CCT 11 CN CP CR CCTI2 CW CX CY F E D CCTI4 P N M CCTI5 W V U CCTI6 AD AC AB CCT 7 AL AK AJ CCTI8 AU AT AS 9 BP BN CCT20 BX BW BV CCT 21 CE CD CC CCT22 CM CL CK CCT23 CV CU CT CCT24 DB PA CZ B400 Installation B400 Installation 90 Way EDAC 1 amp 2
39. f the RHS switch The switch illuminates to indicate that it is switched on The module accepts two stereo sources via separate pairs of XLR type connec tors Pressing B TLCO on the Telco module selects the alternative input On the Telco module this would be suitable for a telephone input from an external hybrid mM TRIM provides 12dB to 12dB continuous control of whichever input is selected DIRECT OUTPUT The Telco module has a separate level control for the Direct Output With TELCO selected and the channel routed to the stereo master the Direct Output sends a stereo clean feed signal consisting of the stereo mix minus the channel s input signal If not routed to the stereo master the signal at the Direct Output will be the stereo mix re The Direct Output is normally post fade but may be selected as pre fade by pressing the PRE switch When the channel is switched to TELCO the function of the PRE button is disabled Pressing TB allows talkback from the overbridge microphone XLR input to be routed to the Direct Output AUXILIARY SENDS There are four AUXILIARY SENDS with individual level controls Aux 2 and 3 carry a mono sum of the channel signal and Aux 4 is fed in stereo All Aux Sends are normally post fade but may be selected as pre fade by pressing the associated PRE switches The pre fade source for Aux 1 3 is normally post mute but may be selected as pre mute by
40. inst the seller of the Equipment B400 Introduction Installation B400 Installation 2 1 Dimensions Frame Size 24 Module 833 72mm 32 82 i 32 Module 1087 72mm 42 82 40 Module 1341 72mm 52 82 48 Module 1595 72mm 62 82 56 Module 1849 72mm 72 82 E ON E E LO O e amp 9 x E E 5 al E 91 Sd 723 48mm 28 48 _ 889 50mm 35 01 2 2 B400 Installation B400 Installation Earthing the Console Important Notice The console has two earth posts on the rear connector panel They are located near to the power supply connectors The un insulated metal post is the chassis ground and the insulated post is the system ground The console is supplied with these two posts linked together It is essential that the console is operated with these two earths linked They may however be linked at a different point in the installation for example a technical earth in the installation site In this case the wire link between the two posts must be removed Meterbridge The meterbridge has a number of connectors as shown below MONITOR COMMS PSU EXTERNAL INPUTS _ MONITOR COMMS G 0900000000000 OB The MONITOR COMMS D type connector routes signals to the Monitor Selector PCB see the Meterbridge connector list on the previous page for pin d
41. is a VCA con trol and may be controlled externally connections are via the EXT LOGIC D type MUTE The Studio Speakers May be muted locally by pressing the MUTE switch The integral LED illuminates to show that the local mute is active The Studio Speakers may also be muted by an external mute via the external logic connector on the rear panel or by the ON AIR switch on the Master An associated EXT LED indi cates when the Mute has been activated remotely The Studio Speakers may be dimmed by pressing the DIM switch The amount of dimming is adjustable via an internal preset Rear Connector Panel This rear connector panel is a joint panel for the Monitor Module and the Comms Module All output XLR connectors are wired as follows Pinl Ground Pin2 Hot Pin3 Cold Phones Jack Socket Tip Left Ring Right Sleeve Gnd 4 23 4 24 RS5942 e LEE m R x E DI e Lj Co DI ati oboe d d o d MASTER E AFL m Monitor Module The Monitor Module provides facilities for mono and stereo monitoring of many internal and external sources Monitor Sources source AB The SOURCE A B switch selects either the DESK A or the EXTERNAL B bank of switches as the monitor source The switching may also be done externally via separate control lines for the left and right signals The EXT L and EXT R LEDS illuminate when the exte
42. l the stereo master fader is open EXT MUTE LED The EXT MUTE LED glows to indicate that a remote mute is active see above The cue system is activated by pressing the CUE button The CUE button may be operated in latched or momentary mode depending upon how long you hold it down you press and release within approximately 0 5 seconds the button will latch If on the other hand you press and hold for more than 0 5 seconds then the cue will remain momentary When the CUE switch is active and the fader is in its fully down position the PFL signal will be put onto the Cue L amp R busses irrespective of the AFL PFL master setting on the Monitor Module The CUE button may be optionally reset by moving the fader away from the fully down position If the CUE button is pressed when the fader is already away from the fully down position the AFL PFL signal will be selected according to the setting of the AFL PFL master switch on the Monitor module 4 3 4 4 30 88 B 281 0000 6000 6 6 When the input is in line level mode and the CUE switch is pressed this will optionally trigger the remote start stop facility which has two sets of relay con tacts available via the rear panel D type connector These relays can be set to either latching or pulsed operation via internal jumpers enabling most types of machines to be remotely started and stopped Under no circumstances should mains
43. lass System Overview 24 32 40 48 and 56 module frames stereo and 3 mono auxes LED indication on all switches Wide variation in module audio and logic control functions via internal jumpers Stereo ISDN cleanfeed facilities via direct outputs on Telco channels Versatile and highly configurable monitoring via speakers and studio and guest headphones Limiters on master output Wide range of meterbridge options Balanced audio inputs and outputs throughout on XLRs and EDACs Pseudo balanced internal bussing B400 Introduction B400 Introduction Power Supply The B400 uses the CPS275 Power Supply Warranty Soundcraft is a trading division of Harman International Industries Ltd End User means the person who first puts the equipment into regular operation Dealer means the person other than Soundcraft if any from whom the End User purchased the Equipment provided such a person is authorised for this purpose by Soundcraft or its accredited Distributor Equipment means the equipment supplied with this manual If within the period of twelve months from the date of delivery of the Equipment to the End User it shall prove defective by reason only of faulty materials and or workmanship to such an extent that the effectiveness and or usability thereof is materially affected the Equipment or the defec tive component should be returned to the Dealer or to Soundcraft and subject to the following conditions the Dealer
44. m Fit Replaces Omit Mixes J5 6 Limiter Pre emphasis Fit On Omit Off MONITOR MODULE JI Ext 8 Input Sensitivity 2 4dBu 2 3 10dBV J2 3 4 Cueto Monitor Talk to Studio 2 Mntr Mods 1 2 Cue 2 3 Talk J5 9 Talkback Selection with 2 Monitor Modules 1 2 Default 2 3 T B to studio JIO amp JII If the Cue Speaker Outputs are not being used link 10 pins to 2 and link JI pins to 2 In this configuration a sum of the Cue Left and Right Signals are routed to the Cue Speaker on the Overbridge This feed is muted by using the Overpress facility if it is fitted If the Cue Speaker Outputs are being used link JIO pin to JI pinl and link 10 pin 2 to JI pin 2 In this configuration the sum of the Cue Left and Cue Right sig nals is never routed to the Cue Speaker on the Overbridge The individual Cue Left and Cue Right signals are routed to their respective Cue Speaker Outputs but these are muted by using the Overpress facility if it is fitted Alternatively if only pins 10 pin2 and JI 2 are linked then the Overpress facility will not mute the Cue L amp R signals to the Cue Speaker Outputs JI2 Cue to Headphones mixes or replaces Program 1 2 Mixes 2 3 Replaces J13 Monitor Dim or Mute from DIM bus 1 2 Dim 2 3 Mute Studio DIm bus 1 2 Studio Mute 2 3 Studio Dim COMMS MODULE JI 2 Feeds T B to the external destinations 1 2 Cue signal When not operated these can
45. mage width control allows the stereo image to be varied from Mono through normal Stereo to Wide Stereo This control has an integral push action switch which turns the width control on and off pAUPAN PAN sets the level of the group signal feeding the Stereo Left and Right busses When ST is pressed allowing the group signal to be positioned within the stereo image The associated switch allows the control to act either as a PAN switch pressed or as a BALance switch released QD ST Stereo The panned signal may be routed to the master stereo mix by pressing the ST switch AUXILIARY SENDS There are four AUXILIARY SENDS with individual level controls Aux 1 2 and 3 carry a mono sum of the channel signal and Aux 4 is fed in stereo with the post pan signal All Aux Sends are normally post fade but may be selected as pre fade by pressing the associated PRE switches The pre fade source for the Auxiliaries is normally pre mute but may be selected as post mute by changing internal jumpers One jumper sets the source for Aux 3 and a separate jumper sets the source for Aux 4 O Cue The cue system is activated by pressing the CUE button The CUE button may be operated in latched or momentary mode depending upon how long you hold it down you press and release within approximately 0 5 seconds the button will latch If on the other hand you press and hold for more than 0 5 seconds then the cue will remain momentary Whe
46. may be derived post limiter LEVEL The LEVEL control sets the final output level This may be fed by a pre fade signal or a post fade signal i e pre or post fade the stereo master fader by use of the associated PRE switch MUTE The output is muted whent the MUTE switch is pressed O Pr The PFL switch allows you to listen to the Mono Output signal via the cue system Output Level Control QD The main stereo outputs may be muted via the external logic inputs available on the rear panel The EXT MUTE LED illuminates to indicate that an external mute is active QD PK Peak The PK LED monitors both the left and right mix bus signals at a position post mix amp and pre fader The PK LED will illuminate if either signal goes above 6dB below clipping FADER The Stereo Master Fader sets the final Stereo output level 4 19 4 20 STEREO MASTER OL 7 0 8 R REO P 0 P Rear Connector Panel XLR type connectors are provided for the main audio connections to the module Pinouts are as follows Insert Send L Pinl Chassis Pin2 Hot Pin3 Cold Insert Return R Pinl Chassis Pin2 Hot Pin3 Cold Insert Send R Pinl Chassis Pin2 Hot Pin3 Cold Insert Return L Pinl Chassis Pin2 Hot Pin3 Cold Stereo Output R Pinl Chassis Pin2 Hot Pin3 Cold Stereo Output L Pinl Chassis Pin2 Hot Pin3 Cold B400 Functional Descrip
47. n the CUE switch is active and the fader is in its fully down position the PFL signal will be put onto the Cue L amp R busses irrespective of the AFL PFL master setting on the Monitor Module The CUE button may be optionally reset by moving the fader away from the fully down position If the CUE button is pressed when the fader is already away from the fully down position the AFL PFL signal will be selected according to the setting of the AFL PFL master switch on the Monitor module When the CUE switch is pressed this will optionally trigger the remote start stop facility which has a set of relay contacts available via the rear panel D type connector The relay can be set to either latching or pulsed operation via internal jumpers enabling most types of machines to be remotely started and stopped Under no circumstances should mains voltages be placed on the contacts of the remote Start Stop relays 4 15 CE PK The PK LED monitors pre insert and post fade signal levels If either of these points rises to 6dB below clipping the LED will illuminate SP Signal Present The signal present circuit monitors the output of the mix amp The SP LED illumi nates when a signal is present on the Group Mix bus 3 2 23 El d o OO g lt FR 0 8 00000 6 gt x oi 4 16 B400 Function
48. nel ON will maintain this relay closure ensuring that the line is held while the fader is opened Closing the fader will drop the line from the hybrid METER The 8 segment LED meter may be set to pre fade post Mute or pre EQ by an internal jumper PK Peak The 3 input PK LED monitors pre EQ post EQ and post fade signal levels If any of these points rises to 6dB below clipping the LED will illuminate FADER The VCA Fader controls the final channel level after the Pan Bal but before the Routing with OdB of gain in hand External VCA control of the fader is available via the D type connector on the rear panel if required ED Output Routing The module s output may be routed to any or all of the pairs of Group busses 1 2 3 4 5 6 7 8 or the stereo master bus ST subject to the position of the PAN control see 4 above B400 Functional Description B400 Functional Description Rear Connector Panel XLR type connectors are provided for the main audio connections to the module Pinouts are as follows Direct Output Pinl Chassis Pin2 Hot Pin3 Cold Input Pinl Chassis Pin2 Hot Pin3 Cold 4 9 4 10 42 5 s 5 RS5939 o 6 9 E m 8 m C4 a gt S H gt lt amp 5 O 6 10 0 Mono Group Module There are up to eight Mono Group
49. ouse Cranborne Road Cranborne Industrial Estate Potters Bar Herts EN6 3JN UK Tel 01707 665000 Fax 01707 660482 B400 Contents Introduction aoo Warranty Booo 2 Installation 4 0 2 1 Dimensions _________________________ 22 Earthing the Console Meterbridge Rear Connector Panel EDAC Connectors Rear Connector Panel D type Connectors Jumper Options Internal Monitor Source Selection 2l Monitor Source Selection Block Diagram gt tttma 4 3 __ Mono Input Module 232 Stereo Input Module Mono Group Module Stereo Master Module Communications Module Monitor Module 37 B400 Contents Va 2 3 2 3 2 4 2 6 2 8 3 3 3 4 3 5 3 6 Functional 4 Y Mono Input Module 42 Stereo Input Module Mono Group Module Stereo Group Module Stereo Master Module Communication Module Monitor Module 4 6 4 10 4 14 4 18 4 21 4 24 Specifications B400 Typical Specifications 5 2 B400 Contents Introduction B400 Introduction Introduction Congratulations on purchasing a Soundcraft console The B400 has been designed to meet the needs of Live TV amp Radio Broadcast and Production Facilities including OB vehicles Based on the highly successful B800 the B400 delivers a level of configurability unrivalled in its c
50. rnal control is active ETERNAL P The EXTERNAL B bank of illuminated switches allows you to select any of 8 external inputs as the external monitor source when the SOURCE A B switch is pressed The external source inputs are via the 90 way EDAC connectors on the rear panel The adjacent writing strip is provided to identify the inputs Dis The DESK A bank of switches allows you to select any of 6 internal signals as the internal monitor source when the SOURCE switch is released The 6 are selected via the scramble card in the console see section 2 of this manual The six signals may be chosen from the following list Group to Group 8 mono The Main Stereo Master mix The Mono Mix of the Stereo Master Aux to Aux 3 mono Aux 4 stereo There is also a spare feed which may be used to monitor any suitable point in the console The adjacent writing strip is provided to identify the inputs The factory default setting is detailed in section 2 of this manual nono SOURCE When the MONO SOURCE L amp R switches are both released stereo sources are normally sent in stereo to the monitor However if the MONO SOURCE L switch is pressed then the left signal is fed to both sides of the monitor circuit Similarly the right signal is routed to both sides if the MONO SOURCE R is pressed If both switches are pressed then a mono mix of left and right is fed to both sides of the monitor Monitor Outp
51. routes the oscillator signal to the Direct Output of every input module TAK Pressing the TALK switch routes the talkback signal to the Direct Output of every input module Note Pressing both the TONE and TALK switches together will route the talk back signal and tone to the Direct Output of every input module but the oscilla tor frequency will be automatically set to 30Hz OPTION SWITCHES Two switches OPTION and OPTION 2 are provided to give you the option of remote control of external devices lamps etc A pair of normally open contacts from each switch are made available via the External Logic D type connector on the rear panel Under no circumstances should mains voltages be placed on these contacts In addition each switch has a pair of talkback contacts which are available on the Comms Module EDAC 4 21 4 22 o e 7 o gt 4 m i 0000980 006 06 si gt T B GAI When the switch in question is released the talkback output carries depending on link settings either no signal or the signal from the EXT CUE contacts which are also available on the Comms Module EDAC When the switch is pressed the appropriate output carries the console Talkback signal Talkback T BGAN The input to the talkback system is from the Talkback Mic XLR which is provided as standard on the overbridge and overall gain is adjusted via the T B
52. signal will be put onto the Cue L amp R busses irrespective of the AFL PFL master setting on the Monitor Module The CUE button may be optionally reset by moving the fader away from the fully down position If the CUE button is pressed when the fader is already away from the fully down position the AFL PFL signal will be selected according to the setting of the AFL PFL master switch on the Monitor module 4 7 RS5937 O 01 IL J 666 00 6 6 ed 006 3 4 4 8 When the input is in line level mode and the CUE switch is pressed this will optionally trigger the remote start stop facility which has two sets of relay con tacts available via the rear panel D type connector These relays can be set to either latching or pulsed operation via internal jumpers enabling most types of machines to be remotely started and stopped Under no circumstances should mains voltages be placed on the contacts of the remote Start Stop relays When both CUE and ON are selected the cue will optionally be cancelled auto matically and the signal will be live provided that the fader is already raised If the fader is down the cue will only be cancelled when raised from its end position Line B TLCO mode In this mode the Start B relay pulsed or latching is used as a DIVERT or HYBRID latch This is initially activated from the Cue function to set up a call or remote line with a clean feed return Switching the chan
53. this panel may be chosen from a range of Soundcraft meter panels which are available from your dealer It is suggested that a suitable choice would be a L R pair phase correlator SELECTOR SWITCHES There are six sources for monitoring STEREO monitors the Stereo output of the Stereo Master module MONO moni tors the Mono outputs from the Stereo Master module EXTERNAL monitors any signal placed on the external Input L and R XLRs on the meterbridge rear connec tor panel MONITOR monitors the Monitor Module s output to output speak ers and STUDIO monitors the Studio Speakers CUE OVERRIDE If the CUE OVERRIDE switch is depressed any Overpress or Cue generated from the console will replace the selected meter source The green CUE WARNING lamp will also light whenever a Cue or Overpress signal is present M S The M S switch encodes an incoming Stereo L R signal pair into M S for display on the meters The 20dB switch works in conjunction with the M S switch it boosts the S signal by 20dB B400 Functional Description 9 Specifications B400 Specifications 5 B400 Typical Specifications Connections Mic Input XLR gt 1 5kQ balanced 72dButo lOdBu 20dBu max Line Input XLR gt 10kQbalanced to F 0dBU ss cotes T 28dBu max Insert Send XLR 60 balanced i eres T 28dBu max 25dBu into 6000 Insert Return XLR STOKO balanced Od
54. tion e 28 a 1 m gt m 4 gt A Mi E i DI gt di B400 Functional Description Communication Module Oscillator FREQHz The internal oscillator may be set to one of 4 different frequencies by the FREQ switch ranging from 100 to I OkHz o The ON switch enables the oscillator when pressed and illuminates to indicate that the oscillator is active The oscillator bus is however muted when the Master Module ON AIR switch is pressed but it should be noted that the ON switch will remain illuminated if selected to indicate that the oscillator will be available as soon as ON AIR status is turned off OSCILLATOR CONTROL The mono oscillator signal is routed through the CAL calibrate preset control This should not require adjustment under normal circumstances The calibrated signal is routed to the internal tone bus and also to two sets of balanced outputs which are available on the rear connector panel s EDAC connector OSC L and OSC The LEVEL control adjusts the final output level An EBU TONE facility is available on the OSC L output which switches off the output for 100msec every 3 seconds nominal times when the button is pressed ST CRPS The oscillator signal may be routed to the main Stereo output ST pressed or to the Groups GRPS pressed Slate Oscillator Pressing the TONE switch
55. uts The Monitor System outputs its signals to two pairs of Monitor Speaker Outputs and to a Headphones Output These outputs are all located on the rear connector panel PHONES LEVEL The headphones output level is controlled by the PHONES LEVEL control B400 Functional Description B400 Functional Description HP SPLIT If the H P SPLIT switch is pressed and a CUE is operated from anywhere on the console the monitor signal in mono summed if it is stereo is sent to the left side of the headphones only The Cue signal is fed to the right side of the headphones QD ALTSPKR There are two sets of monitor speakers Monitor Speakers are normally select ed but Monitor Speakers 2 may be selected by pressing the ALT switch 0 Phase The phase of the right signal of whichever set of monitor speakers is selected may be reversed by pressing the Phase switch LEVEL BAL The overall output level of the monitor speakers is adjusted by the LEVEL control whilst the relative level between left and right is set by the BAL Balance control MONO The left and right signals may be summed and fed in mono to both the left and right speakers by pressing the MONO switch QD MUTE The left and right monitor speakers may be individually muted by the MUTE L and MUTE R switches They may also be muted under external control via the control lines which are available on the EXT LOGIC connector on the rear panel The asso
56. voltages be placed on the contacts of the remote Start Stop relays When both CUE and ON are selected the cue will optionally be cancelled auto matically and the signal will be live provided that the fader is already raised If the fader is down the cue will only be cancelled when raised from its end position QD METER The 8 segment LED meter may be set to pre fade post Mute or pre EQ by an internal jumper Optionally the meter can be configured to normally display the signal selected above and follow the Direct output when DIR is pressed Peak The 3 input PK LED monitors pre EQ post EQ and post fade signal levels If any of these points rises to 6dB below clipping the LED will illuminate FADER The Fader controls the final channel level before PAN and Routing with 10dB of gain in hand Note that the Insert point may be configured post fader if required see 8 above External VCA control of the fader is available via the D type connector on the rear panel if required ROUTING The module s output may be routed to any or all of the pairs of Group busses 1 2 3 4 5 6 7 8 or the stereo master bus ST subject to the position of the PAN control see 14 above B400 Functional Description Rear Connedor Panel XLR type connectors are provided for the main audio connections to the module MONO INPUT Pinouts are as follows B400 Functional Description Direct Output Pin Ch
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