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1. E 1 ome s c ges c ges c ges ca ges ET j ler a 1 y EP a E we ERY a j a j 3 4 a 3 3 3 gt J 3 3 E p MET MEL li vma 6 2 2 ve iie Ee 8 5 eat te 5 vod wma v ame Eg amm 20 m E Y 4 2 2 5 4 j 4 4 2 4 v du v ode Ed v Wer ve ve ve ve p ve ve ve ve wR s
2. qm REE 2 ve va 2 m 5 mE pn n EM poate Bosid E Es E V v 27 21 x GRN 21 GRN 21 GRN 21 GRN RIS 5 Dis ola 18 aco LED2 18 E gt Jy LED14 18 LED26 18 LED38 GRN GRN lt GRN RE ol ws of 16027 o 5 E LEDa wo MI ieee 3 E m em ane 5 8 e 23 9 2 y 5 T 9 GRN GRN GRN 3 3 gt gt t 2 2 2 5 2 x J lt s x 223 9 2 5 a 2 eas 6 LEDS LEDi8 __
3. 5 E TLo72 GROUP Gp TXT HT ve R73 ve UXT por 10K R76 1 TOK Ret Tks 22 v 22K 109 RS 4 R46 Ras 04 0 4 1 5 10K 2 D20 5 o 2 y nes 47 3 GRPLED ugs n 4 BC182 1 5 5 MTXZ A7 144148 D18 R75 1 12 xo 13 71 Rea TLo72 TOK gt morals lt T 3 AN4148 Do 0 4 1N4148 Ve 15 v D29 Al D14 R Hyo RES D1 14148 Gnesw Yr gt 1N4148 2 72 1N4148 Al Dis amp INH Ics 4 94 2901 2 1N4148 vss Ras 450k 1 Bis METERS AUXSW H Gea mia Ma mm UXS LE METER reo neo 150K 75k 75 vsk 7 e c2 AUX mis mu Ris 202 202 202 202 R78 63 02 220 moo 21 ve 63VO2 2 2 ESS 971 22K a 128
4. 2 mI amp BO 1 gt if 00 0 9 0 83 8 i 3 i 3 48 48 48 dope O pian pz 3 gt 9 9 0 o o This drawing is split across the following two pages to aid readability 27oR 758 120R 180R na 270R 360R R10 510R 820R 1 5 R14 2K R15 Ve ve
5. e 1 220P vi 02 LEFT MONITOR 02 P180 1 a c79 6 T 220P 75R 100U E ue 1 v CENTRE MONITOR 4 4 SP17 1 R227 1 152 v E 77 1 14 75 1004 02 P1994 1 5 220P 75R 1004 t 228 RIGHT MONITOR Ja SP15 3 77 02 P208 1 TS on 3K6 spie 5 95 iN aa 220P 75 1004 9204 R208 0 2 10K 10K LASTC C106 DDA HOUNSLOW MIDDX TW3 2EB ENGLAND TE TR Hio mU Numer LAST TR TR6 CD12841 V LEDS V LEDS V LEDS l 025 D3S 048 18V 18V 18V LED9S LED5S V LEDS RED GRN LED12SLED11SLED10S LED8S LED7S LED6S LED4S LED3S LED2S LED1S 015 RED RED RED GRN GRN GRN GRN GRN GRN GRN 18V 12 Up 104 w 24 X Ne 5 w 3 gt 4 M 1 1 1 1 1 1 1 1 5 6 7 8 1 2 3 4 5 6 7 220 5 D D D D D D D D D D D D 25VLP 270K i 1 1 5 8 7 6 5 4 3 5 1 BA683A V LEDS 1 Z 1 T V 2 4 1 PR2S ADJ 3 Z 9 500R CENTRE METER 1 4 V LEDS V LEDS 10K CON1S R5S Res 6 47K 10K 5 V LEDS 10U A 16VLP D m 1 3 v s gt 15 V LEDS 1 v
6. 1 YOLINOW YOLINOW YILIN YALIN SHINSO 104100 INIOd INSSNI ANVITIXOV OL NVIINIS SI Z 104100 ANVITIXOV m LNIOd INSSNI 41 THEBUSLINKING PORT The bus linking port enables two consoles to be used together in a master slave configuration The bus structure is broken between the input modules and the group modules although in normal use a shielded connector 15 used to Join the two sections If the console 15 to be used as a master the connector 15 removed and the master end of a link cable put in its place This retains the link between the buses and connects the input modules of the slave console to the buses of the master console If the console is to be used as a slave the slave end of the link cable is used which breaks the link between the buses and feeds the input modules over to the master console This of course means that the group and master modules of the slave console are not used as only one master per function can be allowed access to the bus During unlinked operation a blanking plug must be inserted to connect the input and output buses CD1308 This shows the Bus Link Blanking Plug CD1306 This shows the Bus L
7. 5 LEDBLK RED R108 R98 1 ES R20 5 Sen Ge uem Stan 5 UXT 3 Sag Pues 2 1 228 GB eve 10K 15 MIX METER SUPPLY Www aw ww aw METER 1 8 2200 2250 0 4 22 conss R97 cona cont R21 R22 R23 i ov 4K7 ja laa 251 ww aw 2 2 rd 23 2 R26 m ee nes 2 1 WIR 3WAY 3WAY SWAY SWAY 4 METWAY METWAY METWAY METWAY o8 D 77 LITTLITE LiTTLITE 2200 2200 fb 5 pass 220 1 iD 1 R111 R101 1 228 VIN 7 R28 R29 10 aa P 259 v I A LEDBLICRED ie vis R14 VIN ae cone GROUP LEDa 2 1 4 4 21 ves 5 WAY E mios uos ViN 22K R31 12 10 R30 1 px 15 2 CONS L2 5 LEDBLK RED r3 Initai 2 Pom fa mere mas ma4 T mas OA E dE AUXLED S VIN Ee VIN R37 Sis s 28 47N CONSS cons 10K Tx po 8173 z 2 2 gt 2WAY away 4 7 GROUP W XN P 1N4
8. FHV Takse AUX SONIS INSERT b Toe 123456 4 E Ve AUNT 53456 2204 la 2295 1 TLO72 LLLI N AUX SEND spe 4 1 a 1 884 1 IN 2 2 758 1000 R5 7 1 1 T s 4 1 7 4 75R 1000 1 2 3 10K NE5532 16 0 2 T cos vi T 1N 10KA R10 33P 0 2 220P 859 gt ny 1 Y 12 Spe 10K R16 R20 aN 3WAY AFL LIS NOT NORMALY FITTED p nes gt TEDIS NEssa2 eio vel 7 1 ve swi ces 6 Lenia R12 220P 75R 1000 POUED v 2PSUJ 222 30 198 CONS LEFT EFT CUT INSERT wn LED22 2 Bway LED22 0922 1 MA FADER BUFFER RED dis ve swe 564 32 1 1N HEGN R124 IC6A J LI n NE5532 mag aK T 1 ix 758 1004 misa moe cae 16002 Pm LEFT MIX OUT S 2PSUJ 1670 2 R149 Riso cone E c20 w Rss meo SWAY NG3MAHL T T 0 2 10K 1000 m 16V0 2 R160 1004 129468 1602 c25 nay 2206 R172 R173 TRS 2 p mes G E 240K 1 ET ve T E IC8A 75 1000 1
9. LM2901 wo ic21 LM2901 ve lt ve e N ve lt R24 120R ve 14 14 14 Bc212 LED73 GRN 21 LED74 __ 18 GRN 15 LED75 GRN LED76 GRN LED77 GRN LED78 __ 6 GRN LED79 GRN LED80 YEL LED81 YEL E LEDB2 _ 6 YEL 9 LED83 YEL LED84 RED 5 4 7 9 8 11 10 1 2901 2 ve Ser 4 8 5 10 1 23 1 2901 2 ve 5 4 7 9 2 10 7 1224 1 2901 2 Title ve R25 1208 ve 14 14 Bc212 LED85 GRN GRN LED87 GRN LED88 GRN LED89 GRN LED90 GRN LED91 GRN LED92 YEL LED93 YEL LED94 YEL LED95 YEL LED96 RED Klark Teknik DDA Division css INPUT METER Size Document Number c Date May 1 199 REV CD1307 1 7 Sheet 2 2 STULL pre 0 52384 8010 550208 1148 s
10. 12006 vi NESss2 758 NOTE IF T1 15 FITTED g zd R14 CHANGES TO 1K AND vie m T RANGE 6 L pret L 1000 z 1640 2 40 cao 5 10K 680P sw2 MONO 2 R177 T 5 R176 RIGHT Took 100K MI SWi9 2Psus 202 202 Soor A cea NGSFAHL 4 RET s HIGH ED 100N 2 7 PASS m 1 EQ IN pao 22 EGO 25 20K swa R127 PART OF SUB PCB L lt R209 BUT Sac 20K 4 372 Took fiona mao 2 d in Y R128 10K 8 4s a sw29 2PSUJ 3 HIGH PASS FILTER 6PSUJ 20K 25 away 2Psus Ve 184 sw20 2PSUJ R132 c279 100K MONO L R203 R202 MIC LINE GAIN 18 cave Ske vais R216 _ d 1000 gt T 1602 an7 E SK v T T 10VLP j 1000 R377 R207 R215 novo 758 x R205 p 10K more 199042 R212 E 1 E 22 PO HF LF EQ CM CHOKE R311 6 VR2B Va ii z R221 198 c267 LINE ae iue EC gm LOMID EQ 9 HI MID EQ 238 27K kas 1 4JACKSL 680P C203 13385 NE5532 1K6 1K
11. MWK PLACE R119 TRE R128 R129 48V on ee Took 1006 mias WI L YOON ces ATON gt 47K mise LED25 220 iPcuEDC 0 48VPRI _ Ve v v 5 T INPUT METEROFF D18 P 27K GRN v CUE 1 100K 220K P ve v ve 15 nes 27k FOR METER BRIDGE OPTIONS 2 R147 LED20 v REMOVE AND FIT R190 VERT EN R136 R127 Zrxssa R194 gt E ve 07 t R191 Rias LED21 ET 2PSUJ 57 100K M 4 zs 2 100K m 10K E 8195 swit Pise 10K GRN rise R126 2 7 4 Tan ve lt lt B6182 2 LITTLITE 150K 11 3WAY 55 3 nize Seu 3 POWER IN 47K v 63 2PSUJ 4 4 6 V R130 V LED OUTPUT CUE 9123 TRIO LED17 RRA Ey ex 4721 css 9156 R157 18 OF MH156 1R 47K 22h 228 EXT METER POWER 1 WWAW NOT NORMALY FITTED USE WITH 1 96 1 OPCUEDC TR9 OUTPUT 4 SWAY 4 BCIs2 18 18 MH156 SEE ALSO CD1281 1 LASTR R197 R131 220 C57 R121 506 DDA HOUNSLOW MIDDX TW3 2EB ENGLAND 25002 88902 EAST D Ban 3 LASTLED LED25
12. ds F NE5592 x 7 pF 121 CON14 ve AUX c20 cres 75R 2 321 SWAY R20 V LED 16 0 2 3 3 INSERT 3 TLO72 msi c22 c26 NOT NORMALY FITTED gt x CON11 1 1001 VRE 1 10 15 2 2 T R120 1 20KA 1 20KA R49 75R 100U a 4 16 0 2 AUX AFL FHVROP Bax R46 LED14 BS 10K GROUP OUT LK20 E ws SWAY GoNe AUX1 1 5 GR 1 10 1 R90 R94 OPT XFMR 10K t 1 VEL 10K ease cis AUXMTR ae 1 1 2 S due 70D E SuPi2 E 3 m 864 10K AUxa 2 M DL 11111 t o o2 gt WU 2 5 2 le Ras PER sup ase len OS 7 Bc c19 iN gt oPcuE Rot 1 musner 4 7 E be auxe a iota 1000 1 Nessa wis CUT GROUPAFL gt savor AA iD ise auxe 12 2 NA a vee sure 02 ve FADER BUFFER gt GROU 21 M oe dio 1 surs ws ve 3 INSERT 9 e swo We Lk23 220N L soie R130 oc CONTE 4 321 AUx8 2 T AJACKSL 5532
13. Ly 058 1 955 26 px 26WAY 7 METERS 5 DDA gt LASTCON CONi TLoz2 LASTD Dit UNIT 1 WHITTON RD HOUNSLOW m LASTLED LED3 LAST IC 75R CS8 VU METER LAST R R111 Size Document Number RE LAST PR PRI g mE Date March 17 1997 Shoat Q 0 Q 0 2 Q 0 2 a CONG T IN x MIXR i soc MIXL MIXR qui SIG3 12 5164 5163 44 1 4 AUXI AUXI 4 23 5165 5166 5165 5166 AUX2 20 20 MTXT AUX2 27255 SIG7 5168 5167 2204 5168 ME T AUXS GPi 3 08 SIGS 12 46 51610 OV TO GP2 V LP 51611 51612 V 12 SIGS AUXA MTXS V 51613 15 12 51614 51610 51611 AUX5 1514 51615 RAE 51616 51612 qe 15 46 GP4 AUX4 1522 51617 11214 51618 51614 51615 AUX6 12 38 5 GP3 1225 51619 51620 51616 GPS AUXT MTX4 19 20 19 20 19 20 19 20 SIG21 21958 51622 OV 19 52 MTX6 GP6 ov 21250 51623 51624 51617 51618 AUXS GP7 AUXG 23 24 23 24 23 24 23 24 51619 51620 5 25 26 25 26 gt st 25 26 25 26 51621 51622 MTX6 51623 ___ SIG24 AUXB 27 28 26WAY 29 30 _ 26WAY AUX8 ____ 29 IDCMD A 431 32 IDCMD 3
14. 9 1N4148 Posse R70 auxe 10K x VE V s 10K 48 55 321 7 Raa 5104 mos Yo R106 AKT 5 AK RECTR 3 BEST 6 REGTE T INH T Rea nes Res anew 5 vss AUXSW AUXSW 2 4662 220K 220K 220 25 di d 202 202 202 d4 GRPLED 95 cons V v AUXLED 88902 6302 _ TS CONT AUXLED B AUX 2 MES m 3 28 41 5 6 mE 22821 aS 7 119 5 0p away eras GPZ WW 4w METWAY piem 13 14 1814 AUXS GPa 18 16 p R107 vss 42 15 es n 21 22 gt we 92 AUXE 21 22 MTXE 228 2 GPs 23 AUX MTX6 25 26 p GPe SWAY 29 30 SP7 Ww 4w METWAY 0820 E 33 34 GPs DDA HOUNSLOW MIDDX TW3 2EB ENGLAND aaway IDCMD Wits LED O P METER SUB Size Document Number RE 1 12 1 Date Warch 18 1997 Shoat
15. x NOILdO XL T sna s lt als alo LNdNI 044415 22 IHOIH ONOW LAAT 34 THE MASTER MODULE The Master Module supports a number of functions including the main mix outputs two auxiliary outputs a tape return input and the monitoring system Two circuit boards are used with signals passing between them when required AUXILIARY SENDS CD1281 Auxiliaries 7 and 8 are located on the master module and their function is identical to the auxiliary masters located on the group modules Looking at Auxiliary 7 mixes the auxiliary 7 bus signals and presents them to IC1B which simply phase inverts the signal before feeding the auxiliary insert point This is unbalanced and the send signal is applied to the TIP of the jack When no plug is inserted the signal is normalled through the RING contact and sent to the auxiliary master level control VR1 This i
16. R109 mus 889 SIS 89 d v c p mue 28 Boo LASTED IDCMH R115 202 25 0 2 5 LAST IC 1 12 C58 Group Matrix Output CANON Number 24 AIW Mo VP V LED V LED LAST LK LK25 es Spiess Date March 7 1997 Sheet 1 1 R55 swa 158 VR2A cis 8 C21 LEFT MONO 220N 219 Bugs 7 LEDi4 5 wini 1 ap 1 02 mae 1900 MIX 1 2 CON2 1 1K6 1K6 4 SWAY T 1 s 2 q 3 2 RED Ex 2 1000 eii 323 R31 2 2PSUJ 10K 3 SuPi aap 160 2 RS 10KB 1515 5 Ber JN m 2 2
17. V anaras 0147148 1268 BASEREF B0212 na Be ve lt y LEDS 21 GRN 21 8 2 mp v z 1 18 6 LED2 18 GAN 14 9 g ope T 13 io 254 15 15 LEDa 1 LEDS LM2901 v 12 12 LED4 SY GAN ve LEDS GAN 5 2 v z 1 6 6 2 2 LED6 6 GaN 14 1 11 13 o GAN LM2901 9 v LEDS ve 5 LEDS Ye 3 3 5 2 z 1 6 6 LED10 6 Ye 14 9 12 od 13 9 9 vp LED LM2901 9 v METER LED12 RED v Ve LM2901 105 LM2901 LM2901 METER2 ve lt N ve lt N ve lt 14 14 14 me V V V e Pawa r TR 120 320m B0212 A ve ve HEDIS d LEDS SF 21 GRN 21 GRN 3 5 8 2 v 1 7 1 lt LED
18. _ P l me ipost nss me EN USE WITH 1397 1 St 29 30 1811 22 ATON SEE ALSO CD1284 1 31 10 9 LASTR T 5 C106 2236 2 3 bus3 G30 V LED LAST CON CON23 DDA HOUNSLOW MIDDX 2EB ENGLAND 37 38 bus5 4 bus4 021 39 40 1 V LED LAST LED LED18 Title 14WAY LASTIG GLEAN OV IONAN Lv m rs ast Sw COMMS MASTER CENTRE MDO acd CON ize Document Number anp UNTED Y 2 m 2 Date February 5 1997 Sheet 1 of 2 042 10 ve n MONITOR s LEFT T T 7 cso 6 52 1 R165 4 8 100K 5 1000 m R78 R79 150K TON NES532 160 2 100K L 7 neo 9163 VR4A 1 330R 10 Reo 4 1 o2 ia 150K 2 7 1 470N 49 R164 1000 Um 4 pae SN al 160022
19. PU S Igresr p M 1 3 1 1 1 1 Ja 2PSUJ site 1 a a 4 s 3 R104 22U eoe at 2500 2 2 2 D 2 9 B P 9 2 9 1 v LED 1 mros Se x n L 9 4PSUJ R166 gue NORMALLY APSUJ 8 SOLOLEVEL R167 V LED R94 20 2 V LED 470N 45 UXMITH R108 a Yoke CEET METER 8 R107 sway 1 Mn MHLOPT 8111 2 H 12 R95 c51 10K 10K LPOST J111 ose Tao cont iPcuE us t 20 Mores PE 3 2 MUTES v 45 8 P R109 4 TRIS R134 202 Bus 17 8L J111 7 2 R114 SOLOMTR J111 63 0 2 bus 9 12 IPCUEDC ied 5 MU Nn 2 E T RMON 12 R96 143715 R132 81 E 115161 OPCUED NEss32 1000 112 18 gt 8 16 0 2 mus D icia 1000 119 20 BUSREF m c62 TR23 ve 12A 1640 2 19 20 2d d 23 24 E 2 128 26 R135 1 4 RPB 100K 129 D20 ve aa d 015 EEJ k 2200 45 R196 p 29 we 35 36 25 SOLO ak R117 IN INPUT CUE aoway 15
20. 2 C20 100K 100K sws Y Y 2 Y Buss 6 mi 820R 1 L 4 5 1 5 p caa 33P 2PSUJ 10K 3 4 sse E R150 20 puss 100K 10KB 15 100K mE R58 4 2 mio 230 Vas Y m swa OK apsuy 10K H R136 ces 7k5 swe J UE 1 Buss STEREO 4 23 mE om 2 1 INPUT e There 4 2 2PSUJ Buse dae Posr Sko ike vasa m Ve 10KB T CLEANOV 2PSUJ REO ait ge wire PRE 3WAY Nessa2 100U R45 BALANCE swi sw an TR T R18 470N 470N POSTA 2 67 RIGH gt F Buss 1 POST R R28 EHE R62 1500 ve suPs cs 16V0 2 R20 R21 100K 5 ai Cs CLEANOV 1N R15 5 E 220N IcaB 1000 2 R64 4 160 2 i 42 T1072 1 2 pag 5 1000 noe 5 820R PREM 2 T 5 NE5532 16 0 2 E AUXS AUXG 51 I le ets nao PFL TP NE 8 P CE ES 100K 1 20KA 1 20KA R19 100K ozem j TLoza 100K 100P 100K 1N
21. 58 PARTS LISTING This listing contains all the parts used in the assembley of a CS8 console Where possible both DDA part number and an part number are given ultimately all part numbers should be of the EVI type DDA No ACBL17 005 ACBL17 006 ACBL17 009 ACBL17 010 ACBL17 011 ACBL17 012 ACBL17 017 ACBL24 006 ACBL24 007 ACBL24 008 ACBL24 010 ACBL24 011 ACBL24 012 ACBL24 013 ACBL24 020 ACBL24 021 ACBL24 025 ACBL24 026 ACBL24 030 ACBL24 031 ACBL24 032 ACBL24 034 ACBL24 035 AMDL24 001 AMDL24 004 AMDL24 012 APCB24 420 APCB24 421 CAP01 5002 CAP01 5003 CAP01 5004 CAP01 5005 CAP01 5009 CAP01 5013 CAP01 5014 CAP04 0010 CAP04 0016 CAP04 0017 CAP04 5003 CAP04 5005 CAP04 5006 CAP04 5012 CAP04 5026 DESCRIPTION EARTH LOOM EARTH LOOM MASTER COMMS PSU LITTLITE XLR HEADPHONE WFM FADER W F M MATRIX LOOM MASTER COMMS LINK WFM LITTLITE XLR S FADER W F M FADER W F M FADER W F M FADER W F M O P LED MTR WFM 16CH L H LED MTR WFM O P VU MTR WFM METERBRIDGE LOOM I P 16CH LH LOOM I P 24CH LH LOOM I P 16CH RH LOOM I P 24CH RH LOOM O P SID I P 4 4 MONO STEREO amp MASTER 58 BUS LINK BLKG PLUG CS8 BUS LINK 33PF 50V 10 5MM PITCH 100PF 50V 105 SMM PITCH 470PF 50V 105 SMM PTCH 680PF 50V 105 PITCH 1
22. Y PRE 2PSUJ F z e LEDS MUTE 2 swis ME __ __ ies MUTE1 8 vais MuTE2 BUS7 MUTE ve 1 2 20KA NB E 91 rok BUSE MUTES n V STEREO R78 a Ries 3055 05 60 8 5 v AUXT BUST 22 18 IPCUE 9 YEL gt Hes BUSS IPCUEDC 2PSUJ 2PSUJ 7 3514 opeue_ IPCUE 1156 1 _ 566 BUST 9156 Rasel R162 2 MUTE 3 15715 15K 100K R79 swis Di 49 864 MXC g R293 v Bc212 15 A ov lt aes Ru as 21 22 L 3 t MUTES E AUXE 10K AN4148 AUX7 3222 22002 15K 1 0 5 28120 25v i pis R161 U 27728 sci AUXI G BIBT 2 ga em nae BEAK MUTE 4 AUX2 35 a6 net 25V R149 5 AUXI 19538 S 680R 330N LASTR R388 DDA UNIT 1 INWOOD BUSINESS PARK swi7 D14 37 28 LEDS LASTO P L 198 E 1 RED LASTCON cON208 WHITTON ROAD HOUNSLOW 2 MUTE4 AowAY L 2 R150 D16 LAST D 018 Title AN4148 IDOMH DO NOT FIT BUSREF 3 METER 680K da 2 LASTLED Gas TERED NEUE 170 0 4 LAST IG 117 CLEANOV 1 2 WWROHB 1208 away LASTSW SW29 Size Document Number REV W
23. cae gt Xx 1 j 1 LK24 Reo 2 5 y NOT NORMALY FITTED sus US 5 200 TU as R129 Z P 8153 R72 2PSUJ 1000 4222 aoi 7K5 cas N 1evo2 s 76632 Bus2 1 592 4 1 1 6 2 12 cn R154 R74 33P R75 100K 100P 75 1004 ee 864 18082 v 22 mus US c P 4 E eq nea suPs mes Tm z mro 14588 W Buss 2 BUSREF 5 y 1 Yv NORMALY FITTED v PAN BUFFER KT 8 swe NE5s32 75 Ja 8 Tove R144 Buse 4 a p 1 1 gt Tr Ve R71 GRP MTX METER ja LCR 1K6 10K swi 1900 CLEANOV 13 Reo MODE 4 16 0 2 1 Sw7 R138 R145 MEE ME E Lks MTXPOST 3 7 10P 1S ne 1211 MIXG 2PsuJ L 1 1 1K 71 4PSUJ MATRIX PRE POST V 1M5 Res CLEAN0V ENKS _ bs Rea dx 58 ax Vv de v R100 s 15 R110 BUS 7 222 1 1008 YEL GRN 19005
24. 2 40 5 8 5532 92 1 5 N 4 63V0 2 a y 1972 R166 016 D17 vie ios I 100K av nat Rea 100K 10K d MONITOR ior VOLUME 100K MONITOR OSC ON R167 7 10 ON m swe L 10168 202 1 16 7 2 5 j ls A Ries le seid 2 R101 1 exe 2 20 R103 ak E 1000 100N I 8208 1602 R170 PINK 1 KHz APSUJ ve 100K R102 5208 R100 C54 H 100N R173 199 1 R95 9171 H i 150R OSCILLATOR 10 Vrac ePsuJ R172 k d 2 gt OSFAHR 5 7 TLoz2 1000 R174 16VO2 Took LINK FOR 48V MONITOR PHANTOMPOWER LKI RIGHT a 2 2 i 2 LKo3 OPT 2 R104 R105 exe swe TALKBACK 1 spit R106 57 47K nus R112 Bias R109 D10 V mu 467 c62 10 Tooou 2 2090 R116 4708 Kk 02 rr o2 D11 3 8 s svi 8 1 1 R108 ose 2 5 2K2 220P 1000 apsus 1000 c56 24K 0
25. M ODULE POS DEPENDENT GROUP OUTPUT LINKS 58 GROUP FX OUTPUT LINKS 7 8 LINKS 3 6 GROUP M RETURN LINKS 1 2 7 8 1395 FUNCTION BUS 7 SELECT BUS 8 SELECT M ASSIGN RIX PRE RAN SFO RM BYPASS A 551 TRAN SFO BYPASS ISN 32 LNK REM OVE BO TH HEN AN OUTPUT TRANSFORM ER USED GROUP OUTPUTS 1 6 BLOCK DIAGRAM MIX L MIX MOI AUXILIARY 1 AUXILIARY 2 AUXILIAI AUXILI AUXIL BUS GROUP FADER GROUP OUTPUT GROUP INSERT BE POINT GROUP OUTPUT GROUP MATRIX AUXILIARY OUTPUT 5 UXILIARY INSERT EXTERNAL INPUT 3 METER 3 POINT AUXILIARIES MATRIX _ GROUP EXTERNAL METER OUTPUT 1 6 AUXILIARY INSERT POINT TO METER pa 55 ae MATRIX OUTPUT 33 GROUP OUTPUTS 7 8 BLOCK DIAGRAM inaino i TVNHSIX3 o
26. R7 14 14 14 R24 V 120R Bo212 AL LED73 GRN 21 LED74 18 GRN 15 LED75 GRN LED76 GRN LED77 GRN 7 __ 6 LED79 GRN LED80 YEL LED81 YEL 3 Lepa2 6 YEL 9 LED83 YEL LED84 RED ON LM2901 wo o m a2 LM2901 wo 21 IC24 LM2901 METERS ve lt ve lt N ve lt 14 13 14 13 14 13 R25 V TRE 212 A gt LED85 GRN LED86 GRN 4 7 GRN Lepes GRN LED89 GRN LED90 GRN LED91 GRN LED92 YEL LED93 W vEL LED94 YEL LED95 YEL gt LED96 37 RED Klark Teknik DDA Division Title CS8 LED OUTPUT MAIN Size Document Number CD1311 1 Date May 2 1997 Sheet 3 of REV
27. d IN 3 nas 20 2M 0 TEDT ane 015 5 1N4148 v NEA 220K L 5 R186 s 100K RED 7 255 1 tech ems J n Lepis RED ENON 11 5632 R221 12 7 1 R220 d 2 6 D21 C105 D ose METEROEE ak TON 1N R309 3 POST cat 558 gt RIGHT 5 nee 758 100U 16902 47K c22 r V LED V LED 1 ve vie Ve mias 5 R49 LT D2 D3 D4 7 fav 7427 220 220 25V0 2 T nso LEDS TAPE BUFFER 4 LEDi2 LEDIO LEDe LED7 Leos LED4 LED3 LED2 esr l Reb Ven Ver V GAN GAN GRAN GAN 534 228 ds Tev 28002 140 s m vi E RI RI 3 L MUTE1 R51 cee 5 2 8 7 s 0 1 2 8 4 5 D D D D D D D e MUTES 25v0 2 270K p B B 9 B P P BA683A 1 MUTE4 2 7 80 oe ila ipcuedc 1 21112 H 4 OPCUEDC R70 21dB Y sip PRI ADJ 2 3 4 H 19187 SB nee ve mh pre e 18V mu 500R 2122 1 R54 V LED 23 24 RIGHT METER 802
28. leg P o7 LEN PSN E he mas 4M7 R41 3 4M7 Ras mao we 88 E 9 wo LM2901 a LM2901 wo 1215 LM2901 ve lt n ve e ve lt n R22 120R ve Bc212 LED49 GRN LEDSO GRN LED52 GRN LED53 GRN LED54 GRN LED55 GRN LED56 YEL LED57 YEL LED58 YEL YEL LED60 RED 21 18 15 E 6 9 wo ON 1 16 LM2901 83 1017 LM2901 wo LM2901 ve R23 120R Bc212 ve lt gt LEDe1 GRN 21 3 of Y ro gt LEDe2 GRN 14 N 15 2 lt gt 1 GRN 12 LED64 GRN ve LEDes GRN E 1 9 __ 6 GRN 14 7 LED67 2 LEDes ve LED69 YEL E 3 o Y LED7O 6 YEL 14 _ 9 i 12 LED72 RED Ic19 LM2901
29. 39 40 E cc R106 n R109 LED14 LAST D D9 Title 18 25 02 LASTLED LED20 40WAY V LED 100K US LAST IC CS8 GROUP FX OUTPUT IDCM His v 63V0 2 5 LAST SW swi5 Size Document Number REM GLEAN V LED LAST VR x PETER on 217 VASTUM 08 Date March 7 1997 Sheet n tox AUX1 ce LAUXT 0 2 iora 2 le BUSREF 3 ge fh 4 7 5 8 5532 758 ve 2 M E e LEFT mie MIX EN tox ore 155 kue SR nusnera 7 ausner vans ae al s l 8 2 75 ve gt mee 5 1072 Ze AN mes mes RIGHT MIX L3 33P 0 2 c15 Y T E SR ausner 5 NEss32 758 v v bie anatas 017 xp m MATRIX CONNECTOR
30. varo 1 1 v vast le m CS8 MASTER MODULE Nz V LAST SW swi2 Size Document Number REV VHS LAST TR TR21 es 0128271 Date March 6 1997 Sher 2 of SRN 12 AUX METER R14 R18 FHV NC3MAHL 13 AUX away 123456 Tacks 10K INSERT n vie N 220N IC2A 1 TLO72 1 SP7 i AUX2 7 1 4 iN pr 2 2 R22 TOP bind 1 10 p7 dd 75R 100U R15 1 T 4 16v0 2 T LK AUX2 5 2 AFL IC3A 75 1000 1 2 NE5532 16 0 2 p 884 38 vi AEL mE LED15 Ces vie a fo OB ns mo bsp no 0 E AN B 1 BusnEE Y 1 Yeu 1 B ss 2 15 NEss32 4 7 5 swt SWAY 8 19 12 _opouene 18 R20 Ve R222 V LED 47K 10K R25
31. 50V 5 SMM PITCH 220PF 50V 105 5 PITCH 150PF 50V 10 5MM PTCH 220U 25V 20 5MM PITCH 10000 10V 20 5MM PITCH 10000 25V 20 5MM PITCH 2U2 63V 205 5 PITCH 100U 16V 20 5 PITCH 22U 25V 20 SMM PITCH 33U 63V 20 5MM PITCH 2U2 50V 205 5 PITCH LP 50 EVI AUDIO PART NUMBER ACBL17 1446 3 ACBL17 1447 3 ACBL17 1450 3 ACBL17 1437 3 ACBL17 1438 2 ACBL17 1439 2 ACBL17 017 3 ACBL24 1479 1 ACBL24 1440 ACBL24 1504 ACBL24 555 ACBL24 485 ACBL24 250 ACBL24 300 ACBL24 1480 ACBL24 1481 1 ACBL24 1485 1 ACBL24 1486 ACBL24 1505 ACBL24 1506 ACBL24 1507 ACBL24 1509 ACBL24 1510 CAP02 GK233050 CAP02 GK310050 2 4 7050 CAP02 GK368050 CAP02 GK210050 CAP02 GK322050 CAP02 GK315050 43 322025 43 410010 43 410016 43 122063 43 310016 43 222025 43 233063 CAP43 122050LP DDA 4 5028 04 5031 06 0001 06 0003 06 0005 06 0006 06 0007 06 0008 06 0010 06 0011 06 0012 06 0013 06 0015 06 0017 06 0025 CON01 0008 CON01 0027 CON01 0049 CON01 0055 CON01 0069 CON01 0069 CON01 0075 CON01 0079 CON01 0087 CON01 0116 CON01 0123 CON01 0124 CON02 0016 CON02 0022 CON02 0029 02 0030 02 0031 02 0032
32. s j i ET PT um w ee 7 MEE EE s wm Mi oie 8 yew R gt use vd x s uss RP vss us id 4 2 4 4 4 4 4 vum vom d vage x E Y Y x i 3 ve ve _ i y la gt 3 9 Ke 9 7 s pm Ke ot mecs 6 oF yp ts 9 7 sp upas Ks Ks e 9 7 y ps E Slo ihe NL sls i lt 3222 RAE 5 lt 1 25 3 xum ues vum mmo xu mo mod vsum METER 1 METER y METERS METER 2 METERS y j METER y METER y METER y 26 vom v vam v e vam vum vam i x 120R mi a 1 A Y SEA Y GROUR s son 34 oft ue oH Ii cat 28 21 3 i i I earls S ales xl labe H as v as v 18 swa 1 w EA A 3 CI 5 3 rs 22 m AUX PART
33. 41070 4 16v0 2 2 c20 Reo R101 1 3176 P R146 swio swit tok 1 R142 100K BUS 72 1000 15 1000 15 2 on 16v0 2 16v0 2 ES TLoz2 1000 R100 7 R120 poa a 8902 BUS2 100K R136 100K 2PSUJ 2PSUJ ie e 1948 mios R342 R383 R384 935 E swi2 swia Reo 5 T BUS4 T Ess32 758 1000 R340 150 2K I 2 BUS4 2 AUXILIARY 4 OPT 3 Bass 27h ew CUT 1906 259 2PSUJ 2PSUJ 100P LKos oPT 7 10KB fore 5 R341 Sw24 swes R166 57 R239 TR201 C249 R240 F346 s Buse win2 3176 j 100K t lt away T 7 5 4 BUSS 218 254 16v0 2 0243 2PSUJ 2PSUJ 33P l 10 jIC2040 4 R168 2 mao4 0244 2 presse 9220 n tok T t Nessaz 758 1000 BUS7 12009 220P 2K 2PSUJ 16v0 2 ma2 v CHANNEL 438 2PSUJ CUT AUX PRE L 1 vaw MONO 2 ve POST M R299 TR202 R301 R138 1c128 3176 j 5
34. n 34 THENIASTERMODUDE 35 MASTER MODULE ab asas 39 MASTER MODULE 41 THEBUSTINKING u u aasan n 42 THEMETERBRIDGE 43 THEPOWERSUPPDY Q a a n aaa sauna asla 45 BUS CONNECTOR PIN OU m u 47 CSS MATRIX CONNECTOR 48 BUS EINK CONNEC TOR 49 CSS 50 SERVICE INFORMATION 58 CSS CIRCUIT DIAGRAMS RE 60 The information in this manual has been carefully verified and is believed to be correct however EVI Pro Audio reserves the right to modify the product described in this manual at any time This document may not be copied or reproduced by any method whatsoever whether in part or in whole without the written permission of EVI Pro Audio Copyright 1997 EVI Pro Audio Group All rights reserved Manual Version DOC03 CS12M A INTRODUCTION The CS8 console has been designed to provide the consultant contractor installer and user with a cost effective system which will perform to accepted professional standards be simple for the untrained user to operate and be tolerant of wiring and installation problems There can be no excuse for a system which is over sensitive to the wiring and installation conventions used and hums at every opportunity High quality bal
35. 02 0034 03 0003 03 0051 03 0064 99 0015 99 0016 5 01 0008 FRN04 0031 FRN04 0032 FRN04 0033 FRN04 0034 FRN04 0035 FRN04 0036 FRN06 0103 FRN06 0104 FRN06 0106 DESCRIPTION 22U 25V 205 5 PITCH LP 10000 10V 20 SmmPTCH LP IN 22 0 68 10N 100 5 ol SON UIN 68 100N 63V 5 220N 63V 5 470N 330 63V 10 5 METWAY 1 10 WAY FML MNT 0 1 IKG ML HDR 0 1 10 VERT EXT M HDR 02 2 WAY ML MOLEX 02 2 WAY ML MOLEX 0 1 R A IKG MALE 0 156 VERT LK ML HDR 0 1 VERT FML HDR 0 156 VERT ML HDR 0 1 WAY VERT ML HDR 0 1 12WY R A LKG ML HDR PLASTIC VERT FML XLR STEREO PCB SLIM JACK DUAL PC PHONO VERT MAHL PLAS R A ML FAHL PLAS FML PC PLAS FML PC NC4 FDL FML XLR 40WY R A ML HDR VERT DIL ML HDR ML HDR 0 25 R A PCB BLADE GROUND POST 24SWG LINKS P amp G KNOB YELLOW P amp G KNOB RED P amp G WHITE P amp G KNOB BLACK P amp G KNOB BLUE P amp G KNOB GREEN BLK RED BLK DK GREY REAN LT GREY RED 51 EVIAUDIO PARTNUMBER 43 2220251 CAP43 410010LP CAP12 J110100 CAP12 J122100 CAP12 K147100 CAP12 J168100 CAP12 K210100 CAP12 J215100
36. 4 4 STEREO _ 2 Bes 2 R66 Jo 7 27 R50 gt 5 F Ld 3 Aux auxe 77 LLL 2 5 s 1 T LED16 240K 7K5 swi3 vans 1 E Toor ons poe LEDi8 _IPCUE ONS GROUP OUT eis 5 LED18 1 R135 SWAY CONG Viren gt 2 29 Z 10 Oir 123456 1000 47K B OD ue 16v0 2 910R R120 R121 7 22 s 1508 gt apsus LLLI 4 Lepre R27 7 gt 12415248 ls 100K Ros 3 k R24 4 R25 R91 1 3 T 22 2 1 cioa 788 2 v LED we 5 19152 E 12 i3 GROUPAFL cure Ss R100 Vit 5 1 n BUS 17 100P Res Lke 1N cons R122 2 2 mnm 13 R149 ___ 4 1 10 4 gt 2 v R103 R96 1g 9124 TRS 05 R99 TAR swi2 R78 zi LM2901 1 vi 188 77 3WAY 2 zi ERES MH Took 2 10K NOT NORMALY FITTED Cna B0212 5 LED20 inaiaa R129 4 LED13 LED y LEDI 206 58 ve mar vie EM BEA RED 20
37. MIC x nes vie HF LF EQ MID EQ MID EQ 9 MIC LINE GAIN uL mE PET E 204 2 18 8 P ce E m n 4 gt Pu 95 4 8 PHASE nore E IREVERSE HIGH 1 n ims 2 RW S AA PASS 44 9 ae m m Ans swa P a 2 5 Joss Glace ee 25 21 3 SEIT z m z eu wn o aim m ym ier M Jf k Fi gt 5 ome p 28 e mE par ME qe we se T HIGH PASS FILTER 220088 wos 18dB OCTAVE d DIRECT 212 8 3 PRE 1 ae is hen ee PAN BUFFER 4 a a sR JR m _ MIX d beum s r ae 1 LCR S gt gt Sell ce an ADASA 223 _ fae DIRECT sss 1 m fo o Wessas 78 mal OUT INSERT 8 x e ME poe mor D mte CHANNELCUT 2 vus s Lu a E kes E 194 ane nos 5 RSS
38. ops 1 2 GRN LED99 GRN LED100 GRN LED101 GRN LED102 GRN LED103 GRN LED104 YEL LED105 YEL LED106 YEL LED107 YEL LED108 RED 21 18 15 6 12 LM2901 RECTC ve e ve e N ve e N Bc212 LED109 GRN 21 LEDi10 GRN 15 180117 GRN LED112 GRN LED113 GRN 0114 6 GRN 3 GRN LED116 YEL LED117 YEL LED118_ 36 YEL 9 LEDMS YEL LED120 RED 1 LM2901 ve e ve e ve e N R28 v Ira V T LED121 GRN LED122 GRN LED123 GRN LED124 GRN LED125 GRN LED126 GRN LED127 GRN LED128 YEL LED129 LED130 W LED131 YEL LED132 RED coNas 1 2 2WAY ML PART OF SUB PCB ves GROUP R37 CON4 S c GRPSW 1 28 4 2 2 12 MATSW 13 2WAY 2WAY RECTA 13
39. 10 22K T R189 eS 1 mm qus i 757 11322 1 ou 10K 8 NE5532 16V0 2 1 2PSUJ 2PSUJ 16 0 2 R18 CON22 IBPERKj 1 R90 mies 220P R177 oK z H 3 conto x E LTAPE 5 Riza iv 1 RAPE CENTRE 22 5 LMON l W TLO72 NORMALY FITTED z RMON a Ris _ V 33P R181 52 1 5 Nes592 miez 084 CENTRE OUT 6 HPEAK R164 TRIB 4 gt J111 2 8 1 1 220P 4 1000 CFDRRIGHT T 10K LR 16 0 2 10 CMON 10000 2PSUJ R168 IC14A 100U 4 11072 16V0 2 220P 12 R101 R175 R179 12WAY ve LINK TO PCB Mun V LED V LED R106 D2 Da an 18V ay Pav d Pav CAT LEDs LEDs MIX C TO MON L R YEU GRN TO TAPE wa 14 Yana wens EDS awe ED X 5 RED VEL VEL VEL GAN GRN GAN GRN MON M 4X 18 2 7 LMON Rios 10128 1000 cpost d Tove 1640 2
40. 100K 20 Ske AUX 2 SEND 100 s NESS32 Be 2Psus 7 Ze p 758 1 88 m CENTRE m m pao INSERT CENTR wie MIX 3WAY 10K en FADER BUFFER 10P get LED15 ToP 25 ve Lepis gt Lv Y 2204 io la uem LL n 3 5532 R39 c19 R214 1 4 1 2 RET j 2 4 BUSREF 3 gt 24 ge 758 1000 IC18A 330K R215 EE 5 E 27 miss nas 4 16V0 2 NEssa2 8 5 2 5 E Mou 7KS 3 1 Nessa2 7 16 0 2 v C18 R189 MUTE1 1 100K Ve 1 1 100K 2 022 C102 1 2 25 2PSUJ 100K R303 R30 R36 c20 100K nao 18K 100U v b AA 220K CEDRLEFT ma 16902 CEDRRIGHT RED R304 18K R300 R301 swa NESS32 240K m Vie MUTE2 Dza BUS PEAK 5 d 2PSUJ 100K FERE 56K 6 22oK 9 5 gt 4 RED 05 7 906 TAPE BUFFER 5 3 2 T owas 5 1000 CONTI 15K 6WAY NE5532 7 IC19A R219 16V0 2 Je TAY R312 5532 Rag c16 MHR A 4 100K 1 2 1 MUTES 2 Dao took Cros 4k 5V1 2PSUJ 1800
41. 18dB OCTAVE 80Hz LAST D Di8 Title LASTLED LEDe LAST LE LEDE STEREO INPUT LAST SW Swis Size Document Number REV LAST LK LK23 e Date February 4 1997 Shoot 1 08 R183 R184 sw7 TRI MIXL 470K wind 8167 3176 gt away T T 7 5 1000 R185 2 L R MIX Cao 100P 321 987 mae ES Res 2PSUJ l 10N Y G R108 4 2 ioa R140 11 32 a E swa 758 1000 ve 220P 2k 1 CHANNEL 3 1 ose F eesuu CENTRE aon R133 AUX POST 1 1 sl MON 2 T ve ONO 2 T1072 1000 118
42. 21MM DIA M3 X 14MM PILLAR X 18MM PILLAR PLUG 6MM BLACK AL29 METER LIGHT BOX FOR AL29 amp CONN PANEL MASTER amp CONN PANEL 16CH FRAME 24CH FRAME 32CH FRAME 40CH FRAME 48CH FRAME L H CLADDING R H CLADDING 16CH ARMREST 24CH ARMREST 32CH ARMREST 40CH ARMREST 48CH ARMREST 4 4 MONO STEREO PANEL VU M BRIDGE PANEL VU M BRIDGE FACIA 16CH LED M BRIDGE 16CH M BRIDGE COVER 16CH LED M BRIDGE FACIA 24CH LED M BRIDGE 24CH M BRIDGE COVER 24CH LED M BRIDGE FACIA 32CH LED M BRIDGE 32CH LED M BRIDGE COVER 53 EVI AUDIO PART NUMBER FAS01 M3005PPB 501 2506 501 4008 5 FAS02 M30NZ 502 40 7 503 40 7 503 4052 502 40 7 503 5052 FAS02 REANJACK FAS03 M30PB FAS03 U11FN WIR92 S 15 20 WIR92 S H20x20 FAS41 SNU1812 FAS41 335106 HWR99 DUH368 HWR99 DUH364 42 000 4 HWR12 M3014CPN HWR12 M3018BP HWRO6 DP250 MTR11 AL29 MTR19 AL29BOXA MWK24 2328 1 MWK24 2329 MWK24 2330 MWK24 2331 MWK24 2332 1 MWK24 2333 MWK24 2334 1 MWK24 2335 MWK24 2336 24 2337 24 2338 24 2339 24 2342 1 24 2349 24 2351 1 24 2357 24 2359 2 24 2372 24 2360 1 24 2362 2 24 2373 1 24 2363 1 24 2365 2 DDA No W W W W W W W W W
43. 25550 e 1808 zl EL Ske Sle en 4 Rie ARD 2PSUJ L 1 away gt gt 2 1 1 52 ces 7 PHASE nm 4 10000 R117 y E 0909 19 21 4 oor MEI 889 cas mis 2 1 em 1 E I 3 3 2 T vie 2 1 TLoza Geop Bs R109 3 4 4N7 16 0 2 R12 4 op 2 72 Ve ve 7 mue L 078 min R179 E R123 R124 GN mn 648 LINE ne Sm cU La ux prs 202 s 2 27 75R T AJACKSL 680 E AR 5532 vRea 4 T R24 de ORE Was v VR18A 1N4148 1N4148 R115 2 al 10KB 2 vi 4 4 T we ee 088 6 10188 Ds 27K ce x 2 2 2 1 Sz 2 1 ma gt 35 3 3 gt 24K 24 680 1 F 1665 10KB E TLoz2 TLo72 72 1N4148 TRE 1000 fe 564 32 1 258737 16 0 2 R180 2 8125 2 R172 5 a 2887397 220K ve 220K Ve 1000 mus Gta R175 9 a 1 2 1 1 GAIN TO 70dB E
44. CAP12 J233100 CAP12 J247100 12 02268100 12 0310100 12 0322100 12 0347100 CAP12 J333100 CON24 03MET 01 105 CON01 03SMVL CON01 10SMVX CON01 02SMV CON01 06SMVL CON01 03SMRL CON02 03SMVL 01 065 CON02 06SMVL 01 065 CON01 12SMRL CON31 X90203 CON32 8253 84 CON32 FC68405 CON31 3MAHL CON31 3FAHL CON31 3FAHR CON31 4FDL CON11 40MHS CON11 16MD 11 14 5 CON84 025BLR 81 5 WIR82 24SWG65 FRN63 YEL11BLK FRN63 RED11WHT FRN63 WHT11BLK FRN63 BLK11WHT FRN63 BLU11WHT FRN63 GRN11WHT FRN32 BLK RED FRN32 BLK GRY FRN32 GRY RED DDA FRN06 0107 FRN06 0108 FRN06 0 FRN06 0 FRN06 0 FRN06 0 FRN06 0 FRN06 0 09 10 11 13 14 15 FRN07 0001 FRN07 0002 FRN07 0018 FRN07 0019 FRN07 0020 FRN07 0021 FRN07 0022 FRN07 0030 FRN07 0031 FRN07 0033 FRN07 0034 FRN07 0097 FRN07 0 FRN07 0 FRN07 0 FRN07 0 FRN07 0 FRN07 0 FRN07 0 FRN07 0 FRN07 0 FRN07 0 FRN07 0 FRN07 0 FRN07 0 FRN07 0 FRN07 0 FRN07 0 FRN07 0 FRN07 0 FRN07 0 FRN07 0 FRN07 0 FRN07 0 09 12 21 22 30 31 32 33 34 35 36 37 38 39 B 57 59 HWR01 0001 HWR01 0015 HWR01 0026 HWR01 0053 HWR01 0063 HWR01 0081 HWR01 0083 DESCRIPTION REAN LT GREY BLUE REAN LT GREY GRN REAN LT GREY BLK REAN LT GREY LT GRN BLK LT REAN LT G
45. EE FM aae MPG 02 Links velen TE LEDI2 LED LEDIO 1 LED7 LED4 LED3 LED2 LEDI nsa xls Yet Ver YEL GR GRN QAN GAN GAN GAN a Yee J Qe x Buss 2 MUTE 1 sy 18V d gt 4 4 2 eos Buss Lo MUIER 2 5 m 18 E Buse 02 80 VsLED 2 NN Buss 5 1 1 1 1 1 1 1 1 411 12 p Soe 220 5 7 5 1 2 3 4 5 7 Buse 111 8051 116 R113 22702 9104 D D D D P D 1000 E gt P B B P B 8 8 B8 MIXC 4 lt V 2111 V LED 5 1 9108 194148 77 MIXE 2 2 m cmn V LED 1 v 22 R125 R140 R141 C49 21 22 2200 7 5 150R 5ke R143 AUX7 24 25V2 PL1 4 9 9 BURT 282 86 222 P id Auxe 27 QV L 220 ADI z 4 i E PRI iN4148 57 Runs 27 28 V T al E 4 1 32 css 5008 1 49 k 33 2200 8105 Fj V LED LAST R R148 15 35 36 25 css 10K R107 212 ces DDA HOUNSLOW MIDDX 2EB ENGLAND 18v EUM 37 38 1 ng sa Aine LAST
46. FERRITE BEAD INDUCTOR WHITE 57 EVI AUDIO PART NUMBER SEM33 J111 SEM32 TIP32C SEM32 ZTX453AI SEM32 ZTX553AI SEM32 TIP31C SEM31 BC182AI SEM31 2SB737AI SEM33 J176AI SEM31 BC212AI SEM33 J111AI SEMA1 TLO72CN 5 41 5534 5 41 5532 5 42 4013 5 41 55 2017 5 41 683 5 41 2901 SEM42 CD4052 SWTO1 SUJ2LC SWTO1 SUJALC SWTO1 SUJ6LC SWTO1 SUJA4MC SWTO4 TP23MOV SWT32 2B10 SWT81 100CNO TMR21 BEADLINK WIRO1 WHITE SERVICE INFORMATION With the exception of the meters there are no adjustments within the CS8 console SAFETY Always switch off the console before carrying out any work on it TOOLS No special tools are required in order to service the CS8 An oscilloscope and multimeter will allow fault finding to component level in the unlikely event of a fault A module extension cable ACBL99 023 is supplied with the console to enable individual channels to be powered when removed from the frame If a complete block of 8 channels is to be serviced then ACBL99 024 an 8 way extension cable should be used MODULE REMOVAL Remove the twelve screws retaining a module and ease it out of the frame There are four screws at the bottom of the module four screws at the top of the module and four screws at the rear of the console at the base of the connector panel The recommended method is to raise the front of the module and to push the module a little towards the front of the console from
47. LEDi2 LEDM LEDIO tEpe LED7 Lepe LEDa LED3 iED2 LEDi 05 gt I 51 Reb VEL Yer ve San San 584 GEN 4 4 E we buss MUTE 1 2 Tav gt 1 im R Wasa 4 100K 93 4 MUTE 3 gt sy S 1 RED s 4 2PSUJ Buss 5 8 MUTE 4 gt gt 5 R101 R102 gt LE IE x BUS 17 5 900919 02223 21230292 9 cee X ns post BUSS 8 19 ipcuedc cse 1 1 1 1 1 1 1 1 220N 5 BUS2 13 14 eevee 5 6 7 8 1 2 3 4 5 6 rd Bust 13 14 5 veo dde MIXR 17 18 sip v r 7 s s 2204 Ices Me 1218 B sner X od 4 MEE 1920 cse veo aly Se Ve mar Vie ma 2122 2200 x D Ve V LED o Roxy 22 24 320 7 8 1 exe 22 25 26 2108 P T A cso R142 100K 0 5 27 28 T ADs 2 3 4 1 9 Pm 5 220 29 30 n m 12 8 5K 220 2570 2 52 soon Do Du 02 33 1 mua 2201 R105 LASTR R157 55728 LAST C67 Klark Teknik DDA Division 37
48. Master Left and Right Meters With 0dBu at the console outputs adjust to read 0dB and with 214 at the console output adjust PR2 such that the bottom led Is just on These adjustments should be repeated until both readings are accurate as they are interactive to some extent Centre Meter PR15 should be used to set the 0dB point while PR25 should be used to set the 21dB point following the above procedure Group Meters PR2 should be used to set the 0dB point while PR3 should be used to set the 21dB point following the above procedure If a meterbridge is fitted then some additional calibration work will be required as follows VU Bridge Calibrate the console meters as above and then use through PR7 to calibrate the VU meters The adjustment is the same for whichever signal source is selected and it is therfore probably easiest to set the meters to read GROUP Set the group outputs to 4dBu and adjust for group 1 so that the meter reads Calibrate the remaining meters using PR2 through 8 The master meters can be set in the same fashion having set the output levels to 4dBu PR9 will calibrate the left meter while 1 and PR11 will calibrate the centre and right meters respectively LED Bridge There are no adjustments in the led meterbridge 59 58 CIRCUIT DIAGRAMS MODULE INPUT MODULE STEREO INPUT MODULE GROUP MODULE 1 6 GROUP MODULE 7 8 MASTER MODULE MASTER MI
49. win ML SRPLED 14 AUXLED 18 18 9 swa 929 j 10 5 10WAY 1K Ve 1 D3 AUX ove os c2 Rao 47N 100K v s vss vss Rae 1 wa cons cows 431 EN 2 2 I 2WAY 2WAY 1 MATRIX 2WAY 100K 1 I vss vss i cone vs METERI 10135 METER METERS 5 METERS 5 2 l 2 5 5 7 m 2 3 MATRIX LED 1 METERS 18 2 TOWAY LEDBLICRED Ho L d 12 2WAY ves LED124 le 15 3 3 5 5 8 AUX LED 1 IH 1 18 LEDBLK RED nas I 2 2 LED133 2 n I 33 I 5 5 72 9 GROUP LED 12 11 5 15 LEDBLK RED R36 2 E Klark Teknik DDA Division LED OUTPUT MAIN Size Document Number RE 01 111 May 2 1597 Shoat s 2708 758 1208 7 180R 2708 360R R10 510R 820R R12 1 5 R14 2K RIS
50. 057 1 8102 T 1 21 20220 PRE 15 1000 15 T 2 16v0 2 0233 vaw 1000 535 ve ve RI 1220 R139 PRE M11 2022 LEDI 100K 100K RED LK201 R94 1 2 270K R305 C234 Laiz D N 2PSUJ 9235 7 PRE 1 5 323 mas BC182 i T 758 1000 esok 220P 2 1 2 Dio 2 POST R 4 R386 cae R303 AUXILIARY post m 31 N iM 220N 20 2 1 1 Lk202 POST L R74 R76 22K 1 1 Auxi PRE M21 2 2PSUJ PRE42 1 02 1 1 1 Lk22 PREMI1 2 8 1 rra PRE R2 1 22 75 R77 AUx5 swe 015 4 4 1 20KA sws CUT 1N4148 NB _ C19 cate T 1 709 ve SOLO 100 6 R147 152 Risa 2 2 1066 Res LED2 16 02 1000 100K EXTERNAL tevo 2 s AUX3 Aux6 cur R158 1 sw22 2PSUJ YEL 75R vres MUTE 1 swis 20 U i 1K R159 D7 4 R154 SW14 2 y Ree 14 1 2 r lt iPcuEDc nias MUTE 4 1K 1N4148 122 AN4148 away 5 77 pote Ea 5 1N4148
51. 2 16V0 2 8 16V0 2 R120 5 680P 012 100K 02 s R13 4 100K v Dia x TALKBACK TN R107 cse E eavo 2 sw AUX1 3 ves AUXT swis BUS R122 10K BUST due s R133 1 06 2PSuJ R123 usz 1 a p ICI7A lt 220U 25v mise AUXS K 2 2Psus Risa 285 LS 2 B mso fb gt PHONES mo y 75h 9135 10K 4 9151 16 r Egsz R143 risa swio AUX4 6 Rise 10K ect Rize R137 7 R146 3WAY 1 7 _ R125 10K dor ERIKS 25500 R126 10K 8057 RUXS R139 57 0 LT guss Bote2 x R159 2200 25V R162 1C17B 4 5 7 be R160 swit AUX7 8 N ve vae 4 H R127 1 aav R140 Rasel BOX Risa mesa meek 1 R128 10K 220K 680K 212 lap IV v C64 o2 10004 NA R156 2 2PSUJ 25 R142 swi2 MIX 6156 H R129 10K mwang d 10000 m mai 25V R130 10K 1 1 USE WITH 1 97 1 IMIXR R131 10K v ALSO 1283 1 2PSuJ MIT
52. 2 02 1 2994 R49 BUS PEAK 285 18 02 meg 2 a cone Lika Tk 2206 2 1 41C7A SP10 98 DUALPHONG Dit 75 i wasa IN wy b gt P Mh y 10K r ansias 1972 mE Reo FF LED13 Sb ad ve RED ds nez 28 LED22 7 C Gan 100 RECORD p 758 EM ue R50 951 Cas 16 0 2 10dBV 2m2 2209 26 Ret nes L R ur R84 10K 2 15K LPOST pee RIGHT RPOST 1 4JACKSL R85 RIGHT CUT aPSUJ 15K INSERT wine LED23 SWAY LED23 NAA LPOST 1 FADER BUFFER RED HPOST AU swio 23 SONIS ea le sp X har RZA SWAY NG3MAHL 1 5 7 2 NE5532 c23 1 TT 7 EN 152456 gt OOP eae 1000 2208 7 uS 1640 2 1000 ene c 2PSUJ 16vo 2 LLL 2 ne R152 2 2 T1 Cea 1886 1 Eo 1 EED t aoz T E 57 160 2 Ski IC9A 75R 1000 1 2 1000 8 NE5532 16V0 2 SPF mer Ree 1605 nao coe vis 220P 75 8222 2 R170 1 E R72 276 ok 3WAY A 1 10N 240K V 68R aa R155 NORMALY FITTED 7 LM 54 RIGHT MIX
53. 21 s 5 2 J z 1 18 8 1 gt LEDSO 18 14 11 13 bs 9 15 15 LEDS LM2901 m 12 12 LeDs2 1 ve LEDSa GRN 5 2 7 1 D LEDSA 14 A 7 x 11 13 o 19 163777 HEDSS LM2901 N LEDS6 NP x ve LEDS 5 2 g of 2 7 1 8 o LEDS8 _ 6 5 Ver 14 m 29 cs LM2901 P METERS 12 LEDGO RED ret 5 TR6 120R A r R a 5 2 E 6 x LED62 18 8 2 15 118 z LM2901 TT N GRN Ve gt hd 4 5 2 z 11 Es 8 7 ul i ou iul Leper LM2901 8 o tenes TED 5 2 1 M 7 6 LED7O 6 ul isk y 9 ices LM2901 2 4 METERS RED gt ON 55 LM2901 o m 83 1620 LM2901 wo 83 LM2901 ve lt ve lt N ve lt
54. 23 5 5 _ 9 L GROUP men _ 062 Y 2 0 l m INSERT E ui OU We 79 ioou 220 57 C 18982 CI p 12 gt R93 R97 2 Reo POST 220 3 4 32 WIR3 gt 4 VEU Rr 2 away 1000 CLEAN0V 25vo 2 SWAY NORMALY FITTED n NS jue une FADER BUFFER 3 NET 2 321 ces PAN coa uw aN supe ve s R82 More MIX susz 12 su 12 220N E 1 22 are ces LCR suse 1 2 on Pt 11 12 i 4 E 2 Reo MODE 16V0 2 qu ze uu 7 2 2 1 7 R70 16V0 2 gt gt meo 75R 2200 It a 4 PE BUSREF 5 1 58 C44 100K EE BUSREF 5 c nz i 2PSUJ 1 NE5532 240K 7 5 cas Ber MATRIX e 9 Le J t E 2 1 vna N 100K jm o v 4 16 5 pes swit 2Psus SKR Lks E E 5 5 ros m m de 7 V LED V LED V LED 5 de 5 5 gt 5 i conto ES 12 D2 D3 54 1806 swis miae 14WAY MATRIX d 18 4 18V 4 18V 2 ew d wasi 045 H MIXC ROT LK3 PRE POST 3 5K6 R139 x
55. 6 LEDSO __ 6 5 7 TLO74 E SES E 14 14 S 14 5 METERS liga os gt gt 28 156 20813 8 0 METERT 20 0 La 5 5 oha 5 10 v a 10 v 2 19 v 3 qt v LED43 10 R34 5 19 pri E mE bn 2 GRN H iesin 3 12 R35 R37 16250 mr tees 4 12801 MT 5 7 4 E 5 ir 55 J ccs Win YEL YEL YEL YEL n i ao A x X vi ME ray A 5 48 YeL 3 YEL 3 YEL 3 YEL Em ope v Li 4 s 6 e LED10 Jy LED22 9 LED34 LED46 YEL YEL YEL YEL 21 2 24 djs x oH s o Ho H wey ob is 2 Leber gt LED ce LED isan gt m y E m TT RED RED RED RED S UNTEN METER Size z Sbai REV CURRENT REF 21 18 15 ve 41C26A TLo74 1 26 TLo74 METER S METER S 5 P METER
56. C t1 15K 4 ETIR Ree 1 METER a TLoz2 m R102 5K R88 m PR2 5K 15K 4 aan 1 Reo 7 METER 8 TLo72 5 VIN TLoz2 75R Rea 1 4 75R 1 4 5K PRIO mE t MIXC 21 4 IC7A 2 R72 1 METERS s 9s 3 oy ape Tu 7 __ E 5 1072 EX vibe 75R 75R 5K R73 18K 1 4 PRI 6 R75 R104 5K R94 z METERS 5 TLoz2 R74 758 2 R96 E METERR 3 ake 11072 1 4 PRS R95 VINA R76 75R fh 4 2 csa M 1 2 UAE RE p METERS AUX2 s 24 3 7 AUXI mo Y 22422 5 14 12 R77 wae 13 14 ET GPa 017 18 0 SP 19 20 DL a 2 21 22 2 24 t1 GPS ox fc 25 26 AUT 198 AUXE 27 28 P7 AL 29 30 327 131 32 pm nm 33 34 _ 7 METERS 34wAY 5 TLoz2 Reo 75R n 5K 15K 4 2 R84 1 2 ov 2 METER2 vile 87 5 6 METERS 758 ov 10 ov 1112 39 01314 w 11111516 17 18 0 METERF 19 20 5K Res 21 22 METERG
57. HIGH PASS FILTER 15 000 10 000 Ap 5 0000 0 0 5 000 10 00 15 00 20 00 10 20k RESPONSE CS8 SPECIFICATIONS Nominal Operating Level 4dBu with a unity gain structure Frequency Response 20Hz 20kHz 0 5dB any input to any output at a gain lt 504 EQ range 15dB 10kHz shelving LF 15dB 100Hz shelving Hi Mid 15dB 470Hz 15kHz Q 1 4 Lo Mid 15dB 70Hz 2 2kHz Q 1 4 Channel Routing Attenuation gt 90dB 1kHz Channel Mute Attenuation gt 951 1kHz Channel Fader Attenuation gt 85dB 1kHz Distortion 0 005 1kHz any input to any output at a gain lt 504 Noise 82dBu 24 channels routed and cut EIN 127 5dBu ref 200 ohms EIN 128 7dBu ref 150 ohms Maximum output level 20dBu into a bridging load Output impedance lt 75R Maximum input level 304 Phono connector levels Nominal 10dBV Signal present threshold 21dBu Peak led threshold 3dB below clipping Power consumption lt 600 Watts OPTIONS Input transformers Multipole connectors Output transformers Bus linking cable LED Meterbridge Flight case VU Meterbridge Spare power supply with auto Flight Case switchover CS8 DIMENSIONS AND WEIGHTS 48 CHANNEL 1930 50mm 76 00 40 CHANNEL 1681 50mm 66 20 32 CHANNEL 1432 50mm 56 40 MASTERAND OUTPUT SECTION 4 STEREO MODU
58. LE MUTE uti v ii M p E b WE L 48V NC3FAHL 3 DO NOT FIT R145 GAIN 2PSUJ 470R 1000 915 cs 16vo 2 SPe 2 2 e LINE 1000U i GAIN 3 63V 190 R7 cas R10 R15 2 1508 vie 680P RS 1000 R109 R110 cse CONS 16V0 2 R12 swe z 77 r1 1 R123 11 NTMI z SWAY 2 i 56K 680P NE5532 D4 ifl 4 b cons 1 AN4148 AN4148 9115 sws VAJACKSL 63 0 2 vi 3008 D 56K 614 gt y LINE APSUJ 24K 0 1 ro 144148 564 32 1 288737 Ru NE vi 2PSUJ 1 N E toou ion 2797 R122 160 2 2 PHASE NOTE IF
59. OUT p 5 56K BUS PEAK 7 Well 1508 V R82 Vie 6 1 dE 220P 75R 100U 16V0 2 212 5 a E 5 220 226P 212 1N4148 15K 11072 LASTR R197 LAST C Y M EN LASTS Sor DDA HOUNSLOW MIDDX TW3 2EB ENGLAND mss Rea 220 CAST 06024 ps Bue Seo E USE WITH PC 1396 ki _ Cast sw V vi Last VR Bize Document Number RE ALSO CD1282 1 V PEN t Date February 27 1997 Sheet o z Ree CENTRE CUT miss R176 SWAY NG3MAHL LED24 gt 123456 TAPETO 4 LED24 19 29 3 L R 2205 Em swe v vi Rer d 112A 4 TN 2 vnza 3 x LFDR cpost le e
60. RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 3 0002 00 00 00 00 0 1 3 7 0021 0022 0025 0026 0027 0029 0033 0035 0036 0037 0038 0041 0042 0047 0048 0049 0051 0053 0054 0055 0056 0057 0059 0060 0061 0062 0063 0065 0066 0067 DESCRIPTION 20KA LOG N B 100KC X 2 INV LOG N B LOG N B 10 X 2 LOG N B LOKRD REV LOG N B 5KB X 2 LIN C D C T N B 20KB LIN N B 20KB X 2 LIN N B 108 100R 1 100R 4W W W 22R 4W 5 CERAMIC 1R 22R e2R eXR UR 688 1008 1206 150R 180R 240R 270 300R 330R 360R 470 2 83 88 5 5 5 85585984 55 EVIAUDIO PARTNUMBER 1 624 01 14 615 01 POT11 614A01N POT14 614A01N POT11 614RDN 14 653226 11 624 01 14 624 01 RES01 1E1R00 RES01 2E1R00 RES01 0E1R50 RES01 0E1R00 RES11 040310 RES11 040222 RES04 1E1R00 RES04 1E2R20 RES04 1E2R70 RES04 1E3R30 RES04 1E4R70 RES04 1E6R80 RES04 1E7R50 RES04 2E1R00 RES04 2E1R20 RES04 2E1R50 RES04 2E1R80 RES04 2E2R40 RES04 2E2R70 RES04 2E3R00 RES04 2E3R30 RES04 2E3R60 RES04 2E4R70 RES04 2E5R10 RES04 2E8R20 RES04 2E9R10 RES04 3E1R00 RES04 3E1R20
61. T1 IS FITTED GAIN 20 70dB 3 814 CHANGES TO 1K AND OR 10 TO 2098 vi 759 R10 AND R11 ARE NOT FITTED car 8 se 9 SP2 1 7 1N Cao y 880 R21 10KB R22 R27 R29 R30 2 1 R32 1 5 1 5 57 s on je DIRECT 33P 33P v v PRE asp R31 4 4 sws sw28 IC3A le de 126 052 ____ 1 7 1 LK11 NM 1028 2 28 5 3 PRE 2 5 7 16072 TLo72 k 1900 2 cons Ve Ve R137 2PSUJ VAJACKSL 1 4JACKSL 100K 2PSUJ I HIGH pes 1 4 1 4 vnsB k PASS pes nes EQ IN R19 sw4 3 c15 c55 Rea mes 2 5 2 5 V 2 1 VR3A 2N2 Yoke 15N 564 32 1 564 2 1 ds L 5 5 SP3 1 R34 9124 8125 rS 100N 100N 2 SK 1 2 202 2PSUJ 2 2 INSERT RETURN v ANA DIRECT Ti OUT INSERT 242 m HIGH PASS FILTER css 100K 5 7 220N 18dB OCTAVE 80Hz 758 100U R33 160 2 NE5532 R36 100K 5 Buss 1 2 R72 10k suss 0804 7 9 10 me gt 15 16 MXR
62. THECONSOLE p lt D 5 d N 0 18 18 VOL MW KGROUND 555 5 a lt lt ed D a 48V PHANTOM POW 47 58 MATRIX DESCRPTDN MATRIX 4 BUS 5 BUS 3 BUS 6 BUS RX 2 BUS RIK 7 BUS RX 1 BUS OOOOOO VIEW OF BUS RIBBON CONNECTOR LOOKING INTO THE CONSOLE 48 BUS CONNECTOR DIN 41612 CONN ECTOR w 4 w ty 1 w gt 21 2 giuwj u 4 N QW gt p gt x gt x lt D gt o 1 x E Ds pa n NIN NIN J 49 gt gt x lt gt gt x lt 1 D D D rd Q tz
63. available for the CUT function The external cut output simply extends a ground onto the connector when the cut switch is depressed The external cut input requires to ground the cathode of D7 which then has the same effect as the cut switch grounding D6 A simple latching switch contact is sufficient THE SOLO FUNCTION SWIS is the solo PFL switch When operated it places DC onto the IPCUEDC bus which is detected by the master module enabling it to replace the selected monitor signal with signal from the solo bus IPCUE The equaliser outputs are mixed to mono for use as the solo signal If Solo In Place mode is selected then the module initiating the solo will have its solo switch depressed and the returned SIP signal from the master module will have no effect If the module did not originate the solo in place the solo switch will not be depressed and the SIP signal will cause the channel to mute Thus only the module initiating the solo will be left uncut In this mode no change takes place on the master module and only the module initiating the solo in place will be heard through the monitoring system There is provision for an external meter on connector option ROUTING AND GROUNDING routing to buses is through 10k resistors All connectors are grounded to the metalwork chassis ground This is connected to by a 100R resistor in parallel with a 10 capacitor BUSREF is taken from OV through a 10k resistor
64. i AUXILIARY CUT D BIE FADER TO AUX 13 RE 1 TO DR OUT 19 INPUT MODULE BLOCK DIAGRAM JINN Y 1 1 g l S3 9 H GN 7 eloo v Z t i 0 gt SLAW OL TV INIOd IMINNVHO SNIIDOH ONOW NVd IH D bay 7 2 2 3 OT IH 0 03 OC 4 NIWD HOLOSNNOO NOILdO 20 THE STEREO INPUT MODULE CD1302 3 THE INPUT STAGE The same input stage is used for both microphone and line inputs Looking at the left signal path CON2 an XLR style connector is used for the microphone input which is wired
65. input module a small amount of signal is fed forward to cancel any residual from the fets to improve the mute attenuation THEBALANCE CIRCUIT The post fade signal next goes to the balance circuit The output of the balance pot can be routed to the mix or the groups The groups normally receive the mono post fade signal but with the PAN switch depressed they will receive the outputs of the balance pot built around VR16 By default the balance control works as a pan pot with full attenuation of the unwanted side A more limited range of adjustment can be obtained by changing the circuit as follows 22 Move R140 to R141 and R341 to R340 leaving the positions for R140 and R341 blank Make R142 and R342 both 10k they are OR links This will then give a balance range of 3 6dB PEAK AND SIGNAL PRESENT LEDS A PEAK indicator and a SIGNAL PRESENT indicator are driven from the post equaliser signal IC14 is used as a voltage comparator and directly drives leds 5 and 6 A reference voltage is applied to pins 5 and 7 while audio is applied to pins 3 and 5 The PEAK led comes on 3dB before clipping while the SIGNAL PRESENT led comes on with a signal level higher than 18dBu THE AUXILIARIES With the exception of auxiliaries 7 and 8 the auxiliaries work in mono using mixed left and right signals which are derived either pre or post fade The following three signals are available PREI PRE2 and POST PREI is the pre equaliser signal P
66. is used to set the threshold voltage for each comparator and this determines the point at which an led will switch on The leds are driven from constant current sources formed from transistors TRI through TR8 LED METERBRIDGE INPUT DISPLAY BOARD CD1307 The meteres are identical to those used on the output display board CD1311 There is no need for a ballistics and rectifier section in the meterbridge as the signal is taken from after the ballistics and rectifier section of the meter driver on the module Further LM2901 ICs IC25 and IC26 are used to buffer the module signals before being presented to the meters THE POWER SUPPLY The power supply is a linear type supplying 18 volts and 48 volts DC to the console It may be rack mounted and a space of 2U above the unit is recommended for ventilation The positive and negative rail regulators are identical in operation thus only the positive rail is described Diodes D11 through D14 rectify the incoming AC from the transformer and feed the main reservoir capacitors C9 and C10 small plug in module contains the series pass transistor and associated regulating circuit 0002 is the series pass transistor and is driven from 0001 which in turn receives a control signal from 001 723 The output from the series pass transistor is passed directly to the power supply output D15 indicates that the supply is functioning Diodes D1 through D4 rectify the AC used for the phantom vol
67. octet J E Tn GROUPS oe ER mm ES VG m amplo e TE GS p soto W Snap Off Sub Board i cow Ie ise 9 NS CENTRE P NI L COM m m pn E EXTERNAL LM ex 7 27 Be gt mee 1 ES x k ee csa Y ples SAFE 0 HR 05 BUS BUS2 9 ES 4 me ad 4 I EE c its 2 ne E osmo AUXILIARY pO AUX1 2 AUXS _ v ewn an MUTE 1 wy Tanas to 315 4 pee Buss y t 1 n a iP euss 3 vu TOK m w MUTE E x xu amp BUS7 Buss ul olia L w 2 AUX4 5 AUX6 re T ECT L E Xx ovu Em asss MUTE3 p pea 181 ug lt A E DE PEAK eme e 9 um 279 ue M e TIE 4 nes 22290 0801 m NEC x EROS G
68. of the signal on one side while increasing it on the other to create the panning effect When LCR mode is selected the input signal is fed to a centre tap on the pot Signal will thus only appear on the left or right output of this section of the pan circuit with the amplitude depending again on the rotation of the pan pot The centre output is derived from the same input signal as the left and right outputs VRI5B is used to control the amplitude of the centre signal and it is buffered by IC8B The output of 15 fed to the centre bus of the console when LCR mode is selected and the MIX switch SW6 is pressed The POST signal may be fed to the centre output of the console by pressing SW5 MONO which will over ride the centre output of the pan pot in LCR mode AUXILIARY MASTER CD1286 Links 9 10 11 12 20 21 22 and 23 determine which of the auxiliary buses will be sent to the output Only one link should ever be installed mixes the bus signals and presents them to 4 which simply phase inverts the signal before feeding the auxiliary insert point CONII This is unbalanced and the send signal is applied to TIP of the jack through SUPII With no plug inserted the signal is normalled through the RING contact and sent to the auxiliary master level control This is followed by a buffer IC11A with 10dB of gain in order that the level control can be run with 10dB of gain in hand AFL feed to the solo syste
69. simulate transformer so that it may be used into unbalanced loads without any ill effect Links 7 and 8 are used to bypass the output transformer connector 10 and must be removed if a transformer is used CONIS may optionally be fitted where the output is to be wired to a multipole connector The meter is built around ICI2 BA683A giving a 12 segment display with a range of 12dB to 21dB PRI is used to calibrate the OdB point while PR2 is used to set the DC offset for the low end of the scale SWI selects the group or the matrix signal to the meter Note that the BUS PEAK indicator is also switched between the group and the matrix 17 may optionally be fitted to provide signals for meterbridge 17 is switched SWI to carry the group the matrix meter signals 27 There is feed to an matrix connector and links 5 and 6 determine whether the signal is pre or post fade Link 5 is normally installed giving a POST FADER signal to the matrix Link 13 is used to select the matrix bus The group can be sub mixed onto the main L R and centre buses of the console A pan control is required to pan the mono group signal onto the L R and centre buses and this is constructed around VR15 a dual pot and IC9 When in L R mode only one section of the pot is used and it simply reduces the resistance to ground of the left or right signal depending upon the direction of rotation This reduces the amplitude
70. sus pce A V GEN 22 m v v 9 sie MATRIXLED 5 e me S Y ls METERS 5 5 METER i EE 44 92 s Ve cur T z 3 we 752241 i end 4 ogge ae s 5 pl lt i Len pr y 5 N MATRIX w c H Hi 97 v b PEL icm 3 es n I i Took ames 1 K AUX LED 4 4 E deo o 1 ve e nas d 0 vum j wie pig 2 NN es E GROUP LED F iau EE S i fie v pm H y pm H om E oc eons t away 1 vm mh R Y um 1 x gm kus les lies a ROLAND iid 21 18 15 6 9 1026 LM2901 ic27 LM2901 CURRENT REF ve oL v o 12 1 5 ve epis 1 2 ve 3 of o oL
71. the rear connector panel Lift the module holding it at the front edge and rear connector panel Keep it parallel to the front plane of the console and disconnect the ribbon cable from each of the 8 boards before pulling the module completely clear MODULE DISASSEMBLY Remove the screws mounting the XLR to the connector panel Remove the screws holding the circuit board to the top panel and pull the circuit board clear MODULE REASSEMBLY This is a reverse of the disassembly process and care must be taken that leds are not damaged through misalignment with their panel holes MODULE REPLACEMENT Place the module over its final position and reconnect the ribbon cable to all the boards Gently ease the module back into the frame taking care not to crush or otherwise damage the ribbon cable Insert the 12 retaining screws STATIC PRECAUTIONS Electronic equipment can be very sensitive to static discharges and care should be taken to avoid static in the work area Where possible work on a bench where you can be grounded through a wrist strap 58 If boards have to shipped then they should be wrapped conductive plastic bags or conductive plastic sheeting PARTS In the interests of safety always use genuine replacement parts Safety approvals will be invalidated by use of non standard components METER ALIGNMENT An audio test set 15 required to accurately measure the level of the output for which the meter is being adjusted
72. to the modulation signal may be experienced under extreme conditions 3V m 90 modulation No permanent damage or degradation of performance will be caused by these conditions 13 CIRCUIT DESCRIPTIONS The following gives a brief description of each module as an aide to understanding the signal flow within the console Many references are made to the circuit diagrams with the reference number for the appropriate diagram being given at the beginning of each module The master module uses two circuit boards requiring four circuit diagrams INPUT MODULE CD1279 The input module contains eight input channels mounted common set of metalwork The channels are identical and a console 15 constructed by using 2 or more input modules together with output module and a master module within a frame THEINPUTSTAGE CD1279 The same input stage 1 used for both the microphone and the line input CON2 an XLR style connector is used for the microphone input which is wired to the inner contacts of CON3 the line input TRS jack With nothing inserted into the jack socket the signal connects to the normal contacts and is then fed to an attenuator which is activated by selection of the line input Resistors R2 and R3 feed phantom power to the microphone input and this is DC blocked from the line input amplifier by C2 and C3 SPI SP2 and SP6 are filters providing protection from high frequency signals entering the inputs Additional filt
73. 00 OV IN 2 02 7 TRE TR IN AC IN 0 2 1208 ER2 R29 AC IN 1 BC212 5 SWAY Bridge 8 100V 1 47 TRO E METWAY BC212 10K u R10 10K 212 680R M _ 1N4148 TR16 __ TR6 BC182 BC182 R11 100N 680R 0 2 15000U 10000 5 40 2200 c28 25V ae 0 2 2 R19 C17 AKA 10K 220U C15 D10 C33 25 10000 gt STON 0 2 40V 0 2 R35 100N 14 16 150000 17 TR11 35V 0 2 BC212 BC212 R17 011 1N4148 R18 680R 10K is R33 TR10 5 R15 12 k 1208 BC182 TIP32A VERT TR14 BC182 TR13 7 MJ2955 REV KLARK TEKNIK DDA DIVISION 4 16V 2 5W W BE 999 INWOOD BUSINESS HOUNSLOW MIDDX 2 7K5 470R 02 gt L Title CS3 PSU BOARD Size Document Number CD1271 1 amp PC1386 1 33U 63V0 2 Date January 23 1996 Sheet 1 of 1 SEND8 SEND7 SEND6 SENDS SEND4 SEND3 SEND2 SEND1 SENDR SENDC SENDL AUXIP8 AUXIP7 AUXIP6 AUXIP5 AUXIP4 AUXIP3 AUXIP2 AUXIP1 IDCMD CON3 Input CON2 MUTE1IP 5 8 1 2 MUTE2IP SEND7 3 4 MUTESIP SEND6 5 6 MUTE4IP SEND5 gt 8 CUESEND SEND4 9 10 CUEDC SEND
74. 1 32 1 34 33 34 34 7 34wy IDCBXR IDCBXR INPUT 1 24 OUTPUT amp MASTERS 51925 51926 51925 ASS 51926 51827 51628 51627 a A SIG28 51629 SIG30 SIG29 BUS 51630 51631 51632 51631 S SIG32 SIG33 SIG34 V OV SIG35 SIG36 V 51633 51637 51538 51634 51635 51639 51640 51536 dS de 51637 51641 51642 51639 51643 51644 51640 15 50 V SIG45 SIG46 OV 29 29 V 51647 51648 51641 21 28 51642 SIG43 22 24 51644 51645 29759 51646 51647 2226 51648 E OV IV 31 32 33 34 V 34wy 2 5 INPUT 25 48 25 156 DDA HOUNSLOW MIDDX 2EB ENGLAND Title CS8 METERS CONNECTOR Size Document Number REV B CD1309 1 Date February 13 1997 Sheet 1 1
75. 1 4JACKSL 758 1000 220P E vie g 8 16702 TN 1 E ve IN Har gt E 1508 LL 7 m PES n NR EA PL2 5k 7 2PSUJ 10K 2 2 8 5 vambs gt Rise E NOTNORMALY FITTED MWK CON opcue 7 BOR UNFITTED Rao 616 169P Mrs ue vi 2 2 R13 R17 2 758 1000 4 1000 SEND I Soon m msa 400 1 4 ma 1 CUT i H R60 129456 20 10K NES5532 592099 1 e 5 Zn LeD15 ES 2 2 b ms yaaa I S 1572 RED r3 wor acy LLLI ERa 4 4 x Nets Z la d 1 zn R125 1 1 Tor 1 20 1 qu MIXPOST 363 1 77 1000 D9 1 2 MDZ mu aou wp Raas nes gt R15 R19 2 2PSUJ 16V0 2 R64 3 3 R23 R25 33P tre gt 20K SuPi4 4 4 pm VRS 15 15 E 100K 212 R126 nea A 1 1 20 VR13 15K
76. 14 18 3 LED26 18 LED38 GRN 7 GRN x m 14 2 m n 13 10 10 J 15 bd 15 x 177 gt LEDS 1 2901 9 1 2901 12 12 LED16 LED40 GRN GRN GRN 4 gt v LEDIT LED29 9 9 GRN gt 3 x 5 2 5 4 2 v 7 1 7 1 LED18 LED30 8 LED42 SP GRN GRN GRN m A 14 gt 12 13 2 gt LED19 SEN 1 lt GRN on g GAN 1 2901 LM2901 5 d LEDs2 LED44 YEL YEL YEL v LED21 5 1 Leas Yeu m Yer m Yeu x 2 e 2 v 7 1 1 LED22 e t LED34 LED46 YEL YEL YEL gt m 14 x nl 13 ul V LED23 LeDa7 4 1 2901 1 2901 METERS METERS LED24 lt LED3e Less RED RED RED v Teknik DDA Division Tue LED OUTPUT MAIN Size Document Number c CD1311 1 Date 2 1997 Sheet 2 REV R22 V CURRENT REF T u as TRS 1209 12 1 ve LED49 21 lt GRN
77. 148 D 1 vss Raa Mxs vss URS MATRIX MATRIX swe m Jp s aj 7 E x 22K R50 8 8 gt ate H UXG L1 ches suc a 14148 nsa Ax vsss vss cones cone vis 1211 22 1 2WAY 2way SR LA vis swa m 22 4 6128 AUXT z E 23 M T PEE TA RS 1 TLO72 100K conzs R107 R56 R577 R58 INS bs Ae a 55 AUXLED S 2 x 6 ee wav EM away vas ves nike pu ik neg A NES 88 22 29 N 11 53 vss VEE x2 yo MI INH 4052 x2 MI INH A 4052 x2 MI INH 4052 Ics xo x2 MI INH 4052 113 13 xL 113 EIE 1 4 PRI 5K
78. 24 STEREOINPUTLINKS STEREO INPUT LINKS 3 1 6 7 11 12 LINKS 17 18 21 22 LINKS 1 2 201 202 EO NSTALLONIY ONE LINK NSTALLONIY ONE LNK NSTALLONIY ONE NSTALLONIY ONE FII ASA PAR FII ASA PAR NSTALLONIY ONE STEREO INPUT MODULE BLOCK DIAGRAM lt gt 1 QQ N ee 41 0000 adya beij AY 00203 OT IH WOOL 03 OZ NIVO 26 THE GROUP OUTPUTS CD1280 CD1286 There are two different kinds of output module Numbers 1 6 ca
79. 3 11 12 SEND2 13 14 SEND1 15 16 SIPREC SENDR 17 18 BUSREF SENDC 19 20 18V SENDL 21 22 18V AUXIP8 23 24 18V AUXIP7 25 26 6 27 28 AUXIP5 29 30 AUXIP4 31 32 18V AUXIP3 33 34 18V AUXIP2 35 36 18V AUXIP1 37 38 48V CLEANOV 39 40 40WAY IDCMD SEND8 E SEND7 18 SEND6 SEND5 SEND4 SEND3 MUTE1IP SEND2 MUTE2IP SENDT B SENDR SB MUTE4IP MES CUESEND SENDL AUXIP8 AUXIP7 158 AUXIP6 SIPREC AUXIP5 eB BUSHEF 18V AUXIP3 18V AUXIP2 AB 18V AUXIP1 186 CUESEND 9 OV CUEDC 208 SIPREC 556 18V BUSREF 18V OV 238 18 OV 545 48V OV Qv 27B MUTETIP MUTE2IP 296 MUTE4IP MWK MWE x 64WAY MALE Mounted on track side of pcb Buss BUS7 8056 BUS5 BUS4 BUS3 S BUS2 BUS1 BUS7 MIXR BUS6 TOR BUS5 MIXL 12A AUX8 BUS3 AUX7 BUS2 AUX6 BUS1 AUXS AUX4 158 AUX3 MIXL AUX2 AUX8 19A AUX1 AUX7 282 AUX6 20 iPCUEDC AUXS 21 SIP AUX4 EA B SREF AUX3 EPA OV AUX2 OV 1 25 CLEANOV 27A MA MUTE1 SA MUTE2 MUTEA MWK 32A 2 7 4RPB CON4
80. 3 and 19 to turn on Thus the normal monitor source is silenced while the solo audio is allowed onto the monitor outputs in addition to the left meter now showing solo audio level instead of the left mix signal The operation of an output solo is very similar other than for the fact that it cannot disable input solos During a solo the centre and right meters are muted by fets Trs 5 and 6 CD1283 Solo audio is mixed by IC11B and this is where the solo meter feed is derived Signal can be adjusted in level by VR3 before going to the monitor system without affecting the meter readings A Solo In Place mode can also be selected and when this is the case the output of Tr7 feeds 14 causing it to turn on and therefore Tr15 to turn on This causes a logic low to be placed on the SIP bus which mutes any input module not having its solo switch depressed The master meters are built around BA683A ICs giving a 12 segment display with a range of 12dB to 21dB Auxiliary 8 and the centre output are as for auxiliary 7 and the left output description previously given THE MONITOR OUTPUTS CD1284 The selected monitor signals LMON RMON and CMON are fed to a volume control VR4 which is buffered by IC10 11 A PHONES switch SW14 selects the headphone or loudspeaker outputs The loudspeaker outputs are built around IC12 IC13 and IC14 and are similar to the balanced outputs used for the main outputs of the console Transformer balancing is not availa
81. 6 O 6 4 6 lt R321 R322 R369 R370 R315 1 evo vi 2N2 10K 10K 10K 27K c266 R21 D D203 ae 1 24K 24K E 1N4148 1949 4 ceas Th204 1000 2 564 32 1 gt 1 258737 160 2 C254 C269 J e 3 Ros cou Raia 4 16 0 2 1 2 9314 5 47N 4N7 L 5 NOTE IF T201 IS FITTED GAIN TO 7 ve CHANGES TO 1K AND OR 10 20 vi 5532 758 TLo72 C270 R210 AND R211 ARE NOT FITTED Y Sap 4 nas 10K 330R 10K 330R vie 22K SP2o3 TW C240 C239 R224 5 R225 8806 5802 2 8 Yair 1 lores ike 4 4 ler 6 le 51006016 le E 5 hes 5 cere ok 3 Y Fas Muere 5 R325 162028 5 R373 m 2206 2206 V Res vie R219 R360 R375 Le t se L R380 ca 2200 7 29 M WI n C209 mo 7 100N 6 T 202 Res 5200 2202 20 HIGH FILTER ade 10 e gt E vw foa HOUNSLOW MIDDX 2EB ENGLAND
82. CSS Service Manual Klark Teknik Building Walter Nash Road Kidderminster Worcestershire 11 7HJ Tel 44 0 1562 741515 Fax 44 0 1562 745371 Email info uk telex com Website www ddaconsoles com 58 Service Manual Telex Communications UK Limited In line with the company s policy of continual improvement specifications and function maybe subject to change without notice This Operator Manual was correct at the time of writing E amp OE Contents INTRODUCTION 4 CSS SPECIFIC ba ese 9 OPTIONS 9 CS8 DIMENSIONS AND WEIGHTS aaa 10 DECLARATION OF CONFORMITY 40 4 11 sa usa 12 POT REIN sasa 13 CIRCUIT DESCRIPTIONS 14 INPUT MODULE a 14 INPUT LINKS 19 INPUT MODULE BLOCK DIAGRAM 20 THE STEREO INPUT MODULE 01302283 21 SIEREOINPUTDTPPINKS ua L uquna 25 STEREO INPUT MODULE BLOCK DIAGRAM m 26 THE GROUP OUTPUTS CD1280 CD1236 27 GROUP OUTPUT LINKS 31 GROUP OUTPUT LINKS RETURN 32 GROUP OUTPUTS 1 6 BLOCK DIAGRAM 33 GROUP OUTPUTS 7 8 BLOCK DIAGRAM
83. D FRN41 LREDCUT FRN41 LRED FRN41 PLGYMONO FRN41 PLGYL R FRN41 PLGY7 FRN41 PLGY8 FRN41 PLGYSTER FRN41 PLGYL FRN41 PLGYR FRN41 RLGYAFL FRN41 PLGYSIS FRN41 PLGYGAIN FAS01 M3006PPB FAS01 M3008PPB 501 0621 2 501 3008 FASO1 N0410PPB 501 0406 501 0410 DDA No 01 0086 HWR01 0090 HWR01 009 HWR02 000 HWR02 001 HWR02 002 HWR02 0022 HWR02 0034 HWR02 0036 HWR02 004 HWR02 0043 HWR02 0044 HWR99 0010 HWR99 001 HWR99 0072 HWR99 0080 HWR99 0092 HWR99 0093 HWR99 0099 HWR99 0100 HWR99 0113 HWR99 0115 MTR01 0005 MTR99 0010 MWK24 0004 MWK24 0006 MWK24 0008 MWK24 0009 MWK24 0010 MWK24 0011 MWK24 00 MWK24 00 MWK24 00 MWK24 00 MWK24 00 MWK24 00 oO A N MWK24 00 MWK24 0019 MWK24 0020 MWK24 0024 MWK24 0026 MWK24 0027 MWK24 0028 MWK24 0029 MWK24 0030 MWK24 0031 MWK24 0032 MWK24 0033 MWK24 0034 RS H15 S RS H20 S DESCRIPTION M3 x 5mm PAN POZI BLK 2 5 X 6 PAN BLK P TECH X 8 PN HD SLTD NYLON M3 NYLOC M4 NYLOC PLAIN WASHER S PROOF WASHER NUT S PROOF WASHER JACK NUT NYLON WASHER BLACK 11MM NYLON ASHER BLAC K EEVE 397 720 EEVE 397 736 MOUNTING CLIP SML METERBRIDGE FIXING CLIP LED HOLDER 8 W AY LED HOLDER 4 W AY FOOT
84. D MB 58 OUTPUT LED MB SUB 58 VU METER DRIVER 1 4 5K HORIZ TRIMER 1 4 500R HORIZ TRIMMER 1 4 5008 VERT TRIMMER 1 4 VERT TRIMMER ALPS 100 R A MONO ALPS 100 R A STEREO ALPS 10KA X 3 5KRD X 2 REV LOG 10KB LIN C D 10KB X 2 LIN C D 20KA LOG 100KC X 2 INV LOG 10 LOG 10KA X 2 LOG 10 REV LOG C D C T 5KRD X 2 REV LOG N B 10KB LIN C D N B 10KB X 2 LIN C D N B 54 EVI AUDIO PART NUMBER MW MW MW MW MW MW MW FR MW MW MW MW MW MW MW MW PO PO POT POT POT POT POT POT POT POT 24 2374 24 2366 24 2368 2 24 2375 24 2369 24 2371 2 24 2376 58 2301BLK 24 2352 24 2353 24 2380 24 2381 99 2273 4 99 2379 1 99 2346 1 99 2378 32 503 32 502 POT32 502V POT32 503V POT2N 10M14JR POT2N 10S14JRA 93 414 01 14 653002 11 614801 14 6148010 T11 624A01 14 615 01 3 1 614 01 3 4 614 01 POT11 614RD 14 653726 POT14 653D02N r11 614B01DN POT14 614B01DN DDA No POT05 0104 05 0 POT05 0 POT05 0 05 0 POT05 0 5 0 POT05 0 05 06 07 08 09 10 11 RES01 0001 RES01 0025 RES01 9997 RES01 9999 RES03 0006 RES03 00 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4 RESO4
85. LEDS 6WAY 22K PR1S MH12 5 5 c2s v LEDS RED CENTRE 1 4 LED13S v s R2S 2K2 DDA HOUNSLOW MIDDX TW3 2EB ENGLAND Title CS3 METER BOARD CENTRE METER Size Document Number REV METER SUB BOARD A CD1273 1 8 PC1385 1 Date January 23 1996 Sheet 1 of 1 C18 100N R23 100R REV 330 00V R24 R25 R26 15K 10K 220R D2 D3 R1 gt 1N4002 1N4002 1R D6 VERT 4 16V R3 MON R27 c24 c2 D7 220U 220U AP es ZTX453 470N gt 22V 100V 100V R4 0 2 134002 134002 r 33U 4704 100N R2 10K PR1 TR15 63 0 2 0 2 50K ZTX553 D4 05 1 4 Voltage Doubler cs Re 380 0 2 TR2 2 2 25 100 ZTX453 D13 470N NOT R5 l 0 2 FITTED 1N4148 18V 18V 470N FITTED C26 R13 0 2 C21 R28 R12 100N 33U 7K5 470R 02 R8 63 0 2 18V 0 2 gt A oni T 2 5W W KBU802 lt KBU802 I gt 3 54 2N3055 REV CON1 555 16V 02
86. LES 16 CHANNEL 934 50 36 70 24 CHANNEL 1183 50 46 60 29 my Rep 229 125 5mm 4 9 28mm x 43 133 7 um 767 S N 80 5mm 3 22 30 27mm 1 18 57 73mm 2 25 1 47 68mm 1 86 721 00mm 28 38 1 Meterbridge Widths VU 46 6 inches 1183 5mm This cannot be fitted to a 16 input console LED As per corresponding console width Console weights packed 16 26 4kg 58lbs LED m b4 7kg 10 41bs Combined 31 1kg 68 4lbs 24 36kg 80lbs LED m b 6 0kg 13 31bs Combined 42 0kg 93 3lbs 32 45 6kg lO00lbs LED m b 7 4kg 16 3lbs Combined 53 0kg 116 3lbs 40 55 2kg 122lbs LED m b8 6kg 19 0lbs Combined 63 8 2 14116 48 64 8kg 143lbs LED m b 10 0kg 22 0lbs Combined 74 8kg 165lbs VU Meterbridge 6 5kg 14 5lbs Add to weight without LED meterbridge These weights assume a fully fitted console Meterbridges are shipped in with the console but not mounted on the console Power Supply Weight packed 7 8kg 17 21bs Dimensions 2U Rack Mounting with a depth of 265mm 10 43 DIMENSIONS AND WEIGHTS 10 Declaration of Conformity The Manufacturer of the Products covered by this Declaration is Klark Teknik Building Walter Nash Road Kidderminster Worcestershire DY11 7HJ The Directives Covered by
87. MUTE1 1 MUTE2 85 26 MUTE4 55 Uo IPCUE Va o IPCUEDC 18 14 15 16 17 18 D BUSREF 19 20 21 22 18V_ 23 24 18V 25 26 18V 27 28 ov 29 30 OV 31i 32 ave 33 34 V 35 36 37 38 18V 39 40 mE 40WAY IDCMD MWK CON UNFITTED DDA HOUNSLOW MIDDX TW3 2EB ENGLAND Title CS8 BUS LINK Size Document Number REV A CD1306 1 A Date February 6 1997 Sheet 1 of 1 CON1 BUS8 8057 8057 BUS6 28 BUSe 8055 oe P 8055 8054 26 BUSA BUSS E BUSS BUS2 BUS2 BUSI B BUS1 MIXR MIXR MIXC MIXC 10A MIXL TOE SIOA MIXL AUXS MB AUX8 AUX7 SB ER AUX7 AUX6 198 AUX6 AUX5 T a eS AUX5 AUX4 eA AUX4 AUX3 AUX3 AUX2 AUX2 18B 18A p wr AUXi1 194 1 IPCUE 288 IPCUE IPCUEDC 21B 21A 22 22 Ene BUS REF BUS HEF 238 23A OV OV 24B 24A OV OV 25 25 OV 26B 26A ov 278 27a Shey 5522 MUTE1 MUTE2 286 MUTE2 MUTES cane MUTE4 MWK 31B 31A MWK 32B 32A 64WAY DFINV DDA HOUNSLOW MIDDX TW3 2EB ENGLAND Title CS8 BUS LINK BLANKING PLUG Size Document Number REV A CD1308 1 A Date February 12 1997 Sheet 1 of 1
88. RE2 is the pre fader post cut signal and POST is the post fader post cut signal When PRE is selected the PRE2 signal is the factory default setting Links enable the default settings to be changed AUX 1 3 Remove link 3 and install link 4 for AUX 4 6 Remove link 6 and install link 7 for AUX 7 8 Remove link 11 and install link 12 for Auxiliaries 7 and 8 may be used as a stereo pair by depressing SW22 the STEREO switch 23 THE CUT CIRCUIT LOGIC SW6 is the mechanically latching CUT switch which when operated places a ground on the cathode of D15 causing the base of Tr3 to go low and therefore the collector to go high D9 will now stop conducting enabling LED1 to illuminate indicating cut The collector of Tr3 is applied via R118 and R98 to the gate of Trl an P channel FET causing it to stop conducting hence muting the signal D10 is used to create different on and off switching times for the FET As the attenuation of the FET is not perfect a feedforward technique is used to cancel any residual signal A small fraction of the channel signal is fed to the non inverting input of IC4A where it will sum with the residual but in anti phase to it thus cancelling it completely The operation of the AUXILIARY CUT is similar to that of the CHANNEL CUT Links 1 and 2 exist to disable the auxiliary cut if required In this case Link 1 should be removed and Link 2 installed An external input and output are
89. RES04 3E1R50 RES04 3E1R60 RES04 3E1R80 RES04 3E2R00 RES04 3E2R20 RES04 3E2R70 RES04 3E3R00 RES04 3E3R30 RES04 3E3R60 RES04 3E3R90 RES04 3E4R70 RES04 3E5R10 RES04 3E5R60 DDA No DESCRIPTION EVIAUDIO PARTNUMBER RES04 0068 6 2 RES04 3E6R20 504 0069 6K8 RES04 3E6R80 RES04 0070 RES04 3E7R50 RES04 0072 RES04 3E9R10 RES04 0073 RES04 4E1R00 RES04 0074 RES04 4E1R10 RES04 0075 1 RES04 4E1R20 RES04 0077 RES04 4E1R50 RES04 0079 18K RES04 4E1R80 RES04 0080 RES04 4E2R00 RES04 0081 RES04 4E2R20 RES04 0082 24 RES02 3E2R40 RES04 0083 2K RES04 4E2R70 RES04 0085 3 RES04 4E3R30 RES04 0089 RES04 4E4R70 RES04 0091 SIK RES04 4E5R60 RES04 0093 6 RES04 4E6R80 RES04 0097 100K 504 5 1800 RES04 0101 150K RES04 5EIR50 RES04 0103 180K RES04 5EIR80 RES04 0105 220 RES04 5E2R20 RES04 0106 240 RES04 5E2R40 RES04 0107 270K RES04 5E2R70 504 0109 330K RES04 5E3R30 RES04 0113 410K RES04 5E4R70 RES04 0116 41 RES04 6E1R00 RES04 0117 22 RES04 6E2R20 RES04 0118 680 RES04 5E6R80 RES04 0122 1M5 RES04 6E1R50 RES04 0123 RES04 6E4R70 RES04 0124 4R7 0 4W 1 RES04 0EA4R70 RES04 0128 820 RES04 5E8R20 504 9999 YR LINK RES04 0E0R00 SEM01 0001 STD 3MM GREEN SEM0O1 5130GDA 5 01 0002 STD 3MM RED SEMO1 5129RDA 5 01 0012 STD 3MM YELLOW SEMO1 5131YDA 5 01 0031 LED LIGHT BAR RED
90. REY YELLOW LT GREY DK GREY BLK WHT SUJ GREY BLNK SUJ GREY BLNK LED SUJ GREY SUJ GREY 1 2 SUJ GREY 3 4 SUJ GREY 5 6 SUJ GREY 7 8 SUJ GREY 5 SUJ GREY 6 SUJ GREY SUJ GREY MIX SUJ GREY AFT LED SUJ GREY ON SUJ GREY LED SUJ RED MUTE LED SUJ RED MUTE LED REV SUJ GREY PAN SUJ GREY 71 SUJ GREY 2 SUJ GREY 3 SUJ GREY SUJ RED BLANK SUJ RED LED SUJ RED LED BLANK SUJ GREY MONO SUJ GREY SUJ GREY SUJ GREY 8 SUJ GREY STER SUJ GREY SUJ GREY SUJ GREY AFL LED REV SUJ GREY SIS SUJ GREY GAIN M3 X 6 P POZI BLK M3 X 8 P POZI BIK NO6 X 21 MM FLANGE S TAP M3 X 8 CSNK POZI BIK 4 X 3 8 P POZI BLK X 1 4 BLK P TITE NO4 X 3 8 CSK POZI 52 EVI AUDIO PART NUMBER FRN32 GRY BLU FRN32 GRY GRN FRN32 GRY BLK FRN32 GRY LGN FRN32 BLK LGN FRN32 LGY YEL FRN32 LGY DGY FRN32 BLK WHT FRNA1 PLGY FRN41 LLGY FRN41 PLGYDIR FRNA1 PLGY1 2 FRNA1 PLGY3 4 FRNA1 PLGY5 6 FRNA1 PLGY7 8 FRN41 PLGY5 FRN41 PLGY6 FRN41 PLGYEQ FRN41 PLGYMIX FRN41 LLGYAFL FRN41 PLGYO FRN41 LLGYPFL FRN41 LREDMUTE FRN41 RREDMUTE FRN41 PLGYPAN FRN41 PLGY1 FRN41 PLGY2 FRN41 PLGY3 FRN41 PLGY4 FRN41 PRE
91. RS A GAUGE ACK PLUG XIR3 FEM ALE XLR 3 PHONO SOCKETS e WIRING The console uses four different connector styles TRS jack sockets XLR male connectors XLR female connectors and phono connectors The cables used should be of as high a quality as possible Many installation problems can be traced back to poor or faulty cables and connectors There are two different conventions for the wiring of XLR connectors The international convention uses pin 2 as the hot pin while the older American convention uses pin 3 as the hot pin When going from balanced input to balanced output this is of little consequence but when unbalanced signals such as those found on the insert points are used then phase reversal can result The CS8 and all DDA products are wired PIN 2 HOT ATTENTION CABLES This product should only be used with high quality screened twisted pair audio cables terminated with metal bodied 3 pin XLR connectors The cable shield should be connected to Pin 1 Any other cable type or configuration for the audio signals may result in degraded performance due to electromagnetic interference ELECTRIC FIELDS Should this product be used in an electromagnetic field that is amplitude modulated by an audio frequency signal 20Hz 20kHz the signal to noise ratio may be degraded Degradation of up to 60dB at a frequency corresponding
92. SEMO2 KB2685EW SEMO2 0001 1N4148 SEM11 1N4148 5 02 0002 1N4002 SEM11 1N4002 SEM02 0007 6 8V ZENER SEM12 2X79V068 5 02 0008 9 1 ZENER SEM12 2X55V091 SEMO2 0009 22V ZENER SEM12 2X79V220 SEMO2 0014 5 1V ZENER 5 12 2 79 051 5 02 0016 16 ZENER 5 12 2 79 160 5 02 0018 18 ZENER SEM12 2X55V180 5 02 0028 8 2 ZENER 1 3 W ATTS SEM12 2X85V082 5 03 0007 100V BRIDGE 5 21 0802 5 04 0004 182 547 SEM31 BC182 5 04 0005 BC212 557 SEM31 BC212 56 DDA SEM04 0010 SEM04 0015 SEM04 0021 SEM04 0022 SEM04 0023 SEM04 0024 SEM04 0025 SEM04 0026 SEM04 0027 SEM04 0028 SEM06 0002 SEM06 0004 SEM06 0009 SEM06 0038 SEM06 0074 SEM06 0076 SEM06 0103 SEM06 0169 SWT SWT 5111 SWT 5111 SWT 01 0004 01 0005 01 0006 701 0031 01 0033 02 0004 SWT 99 0020 99 0002 WIR02 0010 DESCRIPTION J111 N JFET P32C T0220 ZTX453 ZTX553 BC182 TO92 5 25 737 092 5 J176 TO92 TAPE 5MM PITCH BC212 TO92 TAPE 5 J111 T092 TAPE 5MM PITCH 072 5534 5532 4013 55 2017 BA683A 12 LED DRIVER 2901 QUAD COMPARATO 4052 2 500 4 POLE 500 6 POLE 507 SUJ 4 POLE 2301 MAINS SWITCH UL THERMAL SWITCH 100 85C
93. UNCTION AUXILIARY 1 TRAN SFO RM ER BYPASS AUXILIARY 1 TRAN SFO RM ER BYPASS LEFT M TRANSFO RM ER BYPASS LEFT M K TRANSFO RM ER BYPASS RGHIM K TRAN SFO BYPASS RGHIM TRAN SFO BYPASS CEN TRE M K TRAN SFO RM ER BYPASS CEN TRE M K TRAN SFO RM ER BYPASS M ETER ENABIE M ASTER M ODUTIE PC1396 FITTED AS SUPPLIED 39 REM OVE W HEN FITTING AN OUTUT TRAN SFO RM ER REM OVE W HEN FITTING AN OUTUT TRAN SFO RM ER REM OVE W HEN FITTING AN OUTUT TRAN SFO RM ER REM OVE W FITTING AN OUTUT TRAN SFO RM ER REM OVE W HEN M ETERBRDGE 5 FITTED CS8 5 MASTER LINK 1 LINKS 2 3 COMMSMOI FUNCTION M PHANTOM AUXILIARY 2 SFO BYPASS FM OVE W HEN FITNG OUTPUT AUXILIARY 2 RAN SFO RM ERS TRAN SFO BYPASS 40 MASTER MODULE BLOCK DIAGRAM 01001 0105 OA SNINSO x YOLINOW YOLIN
94. V R85 vis R68 10K EE M 38 c 2 gt MWLO 21 22 0 23 24 _ Res 23 24 2200 2 2200 Res 1 AUXE d 27 28 2v 25V 25 BUSREF AUXS 958 T TA HP 3132 ov c29 120R OR AUXS 3132 aue 35 36 4 BB 25 AUXi 155 98 18v Res 2200 37528 25 40WAY vi IDCMH DO NOT FIT 170 CLEANOV 1 2 Klark Teknik DDA Divi LK04 7 Tie CS8 MONO INPUT SHEET 1 Size Document Number REV CD1279 1 Date Apri 29 1997 hes LEFT NGSFAHL 4 EQ LO MID EQ HI MID EQ MIC VR2A 1 sw28 R21 10KB R22 cee 47K 2 1 Jn m m a we z 1 VE TET d i 5 be 4
95. W W W W W W W W K24 0035 K24 0036 K24 0037 K24 0038 K24 0039 K24 0040 K24 0041 K24 004 K24 004 K24 004 K24 004 2 3 4 24 0045 6 24 0048 0 K99 004 K99 0049 K99 0050 K99 0051 PCB17 1385 PCB24 1394 PCB24 1395 PCB24 1396 PCB24 1397 PCB24 1398 PCB24 1413 PCB24 1418 PCB24 1419 PCB24 1423 PCB24 1424 PCB24 1425 PCB24 1426 02 0006 02 0010 02 0012 02 0013 03 0021 POT POT POT POT POT POT POT POT POT POT POT POT POT 03 0022 04 0013 05 0001 05 0002 05 0003 05 0004 05 0005 05 0006 05 0007 05 0008 05 0009 05 0101 05 0102 05 0103 5 210 DESCRIPTION 32CH LED M BRIDGE FACIA 40 LED M BRIDGE 40CH LED M BRIDGE COVER 40CH LED M BRIDGE FACIA 48 LED M BRIDGE 48CH LED M BRIDGE COVER 48CH LED M BRIDGE FACIA SWITCH CAP TP2301 L H CLADDING M BRIDGE R H CLADDING M BRIDGE amp MASTER CONN PNL 2CH BLANK PANEL BLANK PNL LOCATING PCB MTG BRKT MOUNTING BRKT MULTICORE BLANKING PLUG BUS LINK COVER PNL METER 58 STD INPUT 58 STD OUTPUT CS8 MASTER 58 COMMS 58 MATRIX 58 STD INPUT SUB 58 STEREO INPUT 58 STEREO INPUT SUB 58 INPUT METERBRIDGE 58 OUTPUT LE
96. X MASTER MODULE 5 MASTER MODULE CENTRE MIX MASTERMODULE MONITOR CENTRE METER POWER SUPPLY BUSLINK BUS BLANKING PLUG LED INPUT METER LED OUTPUT METER LED OUTPUT METER SUB PCB VU METER METER CONNECTOR 60 CIRCUIT CD1279 CD1302 CD1303 CD1286 CD1280 CD1281 CD1282 CD1283 CD1284 CD1273 CD1271 CD1306 CD1308 CD1307 CD1311 CD1312 CD1310 CD1309 PCB PC1394 PC1413 PC1418 19 PC1418 19 PC1395 PC1398 PC1396 PC1396 PC1397 PC1397 PC1385 PC1386 PC1421 PC1420 PC1423 PC1424 PC1425 PC1426 PC1422 sI p pre 0 52384 SurMo 0 550108 1148 s
97. addition to feeding the balanced output stage built around This stage will simulate a transformer so that it may be used into unbalanced loads without any ill effect Links 16 and 17 are used to bypass the output transformer connector 9 and must removed if a transformer is used Components labelled SUP are provided for the purposes of interference suppression and are fitted to all input and output connections STEREO INPUT CD1280 The stereo input is a line level stereo input which can be routed to the group auxiliary and mix outputs of the console Note that if a mono input is available then only the left input need be used as it will be normalled to the right signal path if no jack is inserted into the right input forms the stereo balanced input from where the signal goes through a gain control stage using IC2 and followed by the two band equaliser using IC3 The output of the equaliser is summed to mono to create the PRE M signal used to feed PFL through SW8 and the auxiliaries When SW8 is operated DC is fed onto the IPCUEDC bus to signal the master module that a solo has been requested and audio is placed on the IPCUE bus The equaliser is followed by the MUTE switch SW14 and from there the signal goes through a stereo fader This is followed by a buffer stage with 10dB of gain in order that the fader can work with 10dB of gain in hand 29 post fader stage is presented to balance contro
98. anced inputs and outputs are only part of the story Equally important is the way in which the console grounding system works because it is through the console ground that all the noisy ground currents from the cable screens will flow Any part of the audio signal path which shares the cable screen to console ground path within the console will effectively have the cable screen noise added to that signal path The current flowing in cable shields in typical installations has be shown to be substantial in the order of 100mA and above and is caused by the difference in potential between the ground connection at each end of the cable screens Of comparable importance to any system performance is the power supply Internal linear power supplies may be less expensive but are usually responsible for inducing noise into the audio and generating substantial amounts of heat making it uncomfortable for the operator Internal switch mode supplies may be cool running but are usually even more of a problem with regard to noise Another often overlooked point with internal power supplies is how to provide auto switchover between 2 supplies without extensive modification thereby nullifying the warranty Internal supplies are also a potential problem from a maintenance point of view Most service technicians can easily fault find and repair a linear supply with commonly found components but a switch mode supply does not make use of common off the shelf compo
99. audio signal INS RET is fed onto the IPCUE bus and fed to the monitoring system on the master module If Solo In Place mode is selected then the module initiating the solo will have its solo switch depressed and the incoming SIP signal will have no effect If the module did not originate the solo in place the solo switch will not be depressed and the SIP signal will cause the channel to mute THE DIRECT OUTPUT The direct output is available at CONS a jack connector The signal is unbalanced at a nominal level of OdBu and by default is the POST signal SW28 allows the PREI signal to be used 17 Switches 9 10 11 12 23 24 25 and 26 route the signal to the groups Switch 27 routes signal to the MONO CENTRE bus and SW13 routes to the stereo MIX bus ROUTING AND MUTE GROUPS Switches 18 19 20 21 select the mute group buses They are combined through diodes D11 through D14 and then go to SAFE switch SW17 before combining with the local and remote signals GROUNDING All routing to buses is through 10k resistors All connectors are grounded to the metalwork chassis ground This is connected to OV by 100 resistor in parallel with 10 capacitor BUSREF is taken from OV through a 10k resistor There is provision for an external meter output on CONS option MODULELINKS CS8 INPUT MODULE LINKS 3 8 11 12 LINKS 1 2 INPUT M 1394 FITTED AS LNK PUNCTION SU PPLIED AU
100. ble for the monitor outputs The headphones outputs are designed to feed a low impedance load and have a transistor output stage 7 transistors 1 through 4 and associated components form the stereo headphone amplifier TALKBACK IC15 is the talkback microphone amplifier with gain being adjustable by VR3 Link 1 may be installed if a phantom powered microphone is to be used When the talkback key is pressed Rs 114 115 and 116 connect with the monitor signals to form a DIM circuit of around 154 37 Talkback be routed to auxiliaries the mix or the groups There are also sine and pink noise generators They can be switched on using SW7 and the appropriate source selected by SW6 routing for these generators is as for the talkback VR2 is a level control for the selected oscillator Pink noise is generated from diodes D16 and D17 which are differentially applied to IC7A The output from IC7 is taken through the ON switch SW7 and then applied to IC7B for amplification before filtering by resistors R86 R91 and capacitors C45 C49 The output of the filter is buffered and amplified by IC6B from where it goes to the SINE PINK selector switch SW6 A 1kHz sine wave is generated by IC16 with D18 and D19 being used to stabilise the amplitude IC16A along with C53 C54 and R97 form a bandpass filter determining the frequency of oscillation 38 MASTER MODULELINKS CS8 MASTER LINKS 1 8 R190 LINK 9 F
101. both are low and the IC is connected as an invertor the output will go high causing LEDI to illuminate If neither or only one of the control lines is low the output will not go high enough to turn on LEDI If the matrix output is required then SW2 should be pressed This will cause C2 to charge through creating a pulse on the clock input of ICIA Assuming that we are in GROUP mode the Data input will see the logic high from the Qbar output and this will be clocked through to the Q output The A control line now goes high while the B control line stays low causing the multiplexers to allow through the signals on the and Y1 inputs which are the matrix signals If the auxiliary outputs are required then SW3 should be pressed is clocked by a going pulse from Again the Data input which is high will be clocked through to the Q output causing the B control line to go high The multiplexers will now allow through signals connected to the X3 and Y3 inputs which are the auxiliary output signals The B control line is connected through to the RESET pin of ICIA and when the auxiliary signal is selected a pulse will be created through causing to reset When the auxiliary signals are deselected the B control line will go low causing a ve going pulse To prevent this from causing damage to the circuit components it is clamped by D3 and thus prevented from driving the reset pin more than 0 6V below ground C7 an
102. bou Ros R77 10K 88 fe D21 11 7 AUXLED 5 _ K 1 5 1 R23 T 1 R53 R54 956 05 TLo72 AN4148 0 5 2 gt TRS nes 2 3 5 4 5 gt K 8032 T iks 3 R110 4 Y AN4148 22K 7 ori 0 4 8 6 1N4148 ELSE 19 5 MATSW 4 vss 5 14 04 07 H 12 MATRIX Sr 8 19 4013 Reo 1 al 13 gt 2 4 4 1N4148 v 22k 0 4 ice 1 R79 4 2901 2 ios 220 022 017 3 de MATLED 150K 150K x 1 R72 3 METERS 100K TLoz2 METER METERS METERS vss vss ve 22 T x R57 nsa R59 R100 nie x 150K x 75K 75K 75K 75K Ve Reo 935 R36 202 202 202 202 az syi 2 63V0 6302 63 02 47172 6 c14 pie 9 Mei 220U 2200 sve 26V 25 4052 R102 3K8 1 5 2 33k ssk R103 AUXT 4 v 1 5 AN4148 pio zu oli ME 235 Plog Boise 4 2915 2500 86 R39 Rao 14 O4 011 A k 25 25
103. d D4 perform similar functions on ICIB 43 When the A control line is high the output of IC11b will go low causing the MATRIX indicator to illuminate while if the B control line is high the output of ICI2b will go low causing the Auxiliary indicator to illuminate The outputs of the multiplexers are fed through buffer amplifiers with some gain adjustment to allow for calibration of the meters Resistors attenuate the signal input to the multiplexers when a signal is not selected in order to prevent breakthrough of any high level audio signals The signals for the left centre and right mixes do not travel through any multiplexers and are permanently selected There are of course only 6 matrix outputs and meters 7 and 8 will therefore not indicate during the period that the meterbridge is being used to indicate MATRIX signals LED METERBRIDGE OUTPUT SIGNAL PROCESSING CD13 12 The signal input to the led meterbridge output section is identical to that of the VU meterbridge Selection can be made between the group matrix and auxiliary signals In this case the outputs from the multiplexers are fed to quad comparator ICs of the type LM2901 These rectify the audio signals and define the ballistics of the resulting signal that is fed to the display board CD1311 LED METERBRIDGE OUTPUT DISPLAY BOARD CD1311 Each meter is identical and is constructed from 3 quad comparator ICs of the type LM2901 creating a 12 segment meter A resistor chain
104. eng mn 0 NUT 2Psus LKo4 277 LAST LK March 14 1997 Sheet 2 o 2 16V0 2 R10 T ud R30 FHVROP MATRIX OUT 1 2 ET E cons cs nz 1600 NC3MAHL ha E u 16003 123456 bua c2 100K 15K gt val m gt 1 E 3 Qe pe E J EN is 5 AFL EDS sues OFX 2 AS SN s 4 IC2B E H 252 864 er 3 z le z 2 an gt e 5 1 YEL R2 2 Swe R157 c12 Vis 835 1
105. ering is carried out by capacitors C37 C38 C39 and C40 9 optional is wired in parallel with the XLR which allows for wiring the input to a multipole connector mounted on the console frame Resistors R7 R8 and R9 form an attenuator when the line input is selected reducing the input signal by 30dB C45 and C46 again provide DC isolation and there is provision at this point for the insertion of an input balancing transformer Note that if a transformer is fitted R14 should be changed to Ik Where a transformer is not fitted two 10R resistors R10 R11 carry the signal through to the input amplifier D1 D2 D3 and D4 provide clamping for excessive input voltages and the signal is applied to the bases of transistors Tr5 and Tr7 is the front panel gain control and this is connected through the MIC LINE switch such that in the MIC position the gain range is 20 to 70dB while in the LINE position it is 10 to 20dB Signal is taken from the collectors of Trs 5 and 7 and applied differentially to the input The output from here is fed back to the emitters of the input transistors through 56k resistors with one side being phase inverted by The phase reverse 14 switch SW3 selects either the normal the phase inverted signal and feeds it to the high pass filter stage This is a three pole high pass filter operating at 80Hz giving roll off of 18dB octave When not required this can be completely by
106. f boost or cut given to a signal The hi middle frequncy section is built around and 1 16 determines the frequency of operation while VR18 determines the amount of boost or cut The equaliser output feeds the EQ IN OUT switch SW29 allowing the pre or post equaliser signal to be selected IC7A buffers the equaliser output and feeds it to the fader The equaliser output is also used to derive the PFL signal and to drive the SIGNAL PRESENT OdB and PEAK indicators THE CUT CIRCUIT The signal path splits at this point to go through two cut circuits This allows the creation of a PRE FADE POST MUTE signal which can be defeated if required in addition to the POST FADE POST MUTE signal Trl is the CHANNEL MUTE fet and the post cut signal is buffered by IC4A The signal leaving IC4A is the POST FADE signal which is then fed through a pan pot that can be routed to the groups or the L R mix The pre fade signal goes through an AUXILIARY MUTE circuit built around Tr2 to give a PRE FADE POST MUTE signal called PRE2 is normally installed allowing the PRE FADE signal to be muted when the channel mute is operated By removing LK1 and installing LK2 the PRE FADE signal will be unaffected by operation of the channel mute switch 2 is used to combine the left and right post fade signals for sending to the auxiliaries ICI2B is used to combine the left and right pre fade signals for sending to the auxiliaries As with the
107. g independently of the output meters If the mix amplifier is overloaded and starts to clip the only thing that can be done to rectify the situation is to pull down all input faders On the CS8 there are overload warning LED s on each of the sub group mix amplifiers as well as on the left centre and right mix amplifiers When the output meters are switched to observe the matrix outputs the bus peak leds also monitor the matrix bus INSERTS Inserts are used to patch in external pieces of equipment such as equalisers limiters etc and are provided on all channels group outputs mix outputs and auxiliary outputs To be useful and useable the inserts should be at a level which is compatible with this external equipment Sadly this is often not the case Some mixers have inserts at odd levels which will preclude their efficient use because of the noise penalty All inserts on the CS8 are at a consistent level which is at the internal operating level of OdBu AUXILIARY INSERTS In most installations it is quite normal to place an equaliser in the stage monitor sends but this is normally external to the mixer This of course means that the only way of listening to the monitor sends internal to the mixer is via the solo system 6 lies problem The operator does not hear the effect of the external equalisation Also any noise introduced by the external device is constant and not proportional to the setting of the send con
108. hannels so that when one channel is muted others will also mute Led 1 indicates a MUTE whether it is local or remote In every case a MUTE request grounds the base of Tr6 causing it to switch off and hence its collector to go high This is applied to the gates of Trl and Tr2 causing them to switch off since they are P channel fets Tr4 will also turn off causing Tr3 to turn off allowing led 1 to indicate the mute condition THE PAN CIRCUIT The POST signal next goes to the pan circuit This circuit can be switched between stereo L R and left centre right LCR modes using SW15 The output of the pan pot can be routed to the mix or the groups If panning to groups is not selected then the groups receive the POST signal while with panning selected they receive the output of the pan pot PANL and PANR If LCR panning is selected then assigning to mix SW13 will send signal to the left centre and right buses If L R mode is selected no signal will appear on the centre output except by pressing the MONO button SW27 when the POST signal will be routed to the centre bus The groups can only use the left and right pan pot outputs and therefore if LCR panning is selected panning to groups will not function in the expected manner The pan pot is built around VR16 dual pot and IC5 When in L R mode only one section of the pot VR16A is used and it simply reduces the resistance to ground of the left or right signal depending upon the directio
109. he correct line voltage although it may be changed altering the switches within the unit 240 mm oa 230V w 220V x m 120V z 100V 90V POWER WIRING ONTO THE MASTER MODULE 1 BROWN 18 2 N C 3 GREEN OV 4 BLUE 18 5 GREEN YELLOW CHASSIS 6 ORANGE PHANTOM The chassis wire is bonded to the frame and also to a large ground post on the rear panel of the console In accordance with current good practice pin 1 of the XLR connectors is taken to chassis ground as is the sleeve connection from jack sockets 46 BUS PIN OUT 2 W n Bs 5 P N GROU OW LPT C GROU E OUTPUT CUE CO IX RIGHT BU SO IO IN PLACE 77 Q 2 N H lt 4 2 U Z Q QUA 2 1 2220 916 OO ee O O O O 8 18 VO 0 AUD AUX VIEW OF BUS RIBBON CONNECTOR LOOKING HD INTO
110. igh signals the group bus D5 half wave rectifies the audio signal which is then presented to This is used as voltage comparator and drives LED18 when the signal exceeds the voltage on pin 6 of ICIIB Any signal greater than below clipping level will cause an indication An AFL feed to the solo system is taken from the output of the fader buffer It is fed to the OPCUE bus through switch SW12 which also applies DC to the OPCUEDC bus The group signal then goes to the CUT switch SW10 from where it splits off to the meter the group output and the sub mix circuitry The balanced output stage built around IC10 will simulate a transformer so that it may be used into unbalanced loads without any ill effect Links 7 and 8 are used to bypass the output transformer connector CONS and must be removed if a transformer is used 30 GROUPOUTPUTLINKS MATRIX 58 MATRIX OUTPUT LINKS 18 18 LINK 13 LINKS 1 4 9 12 14 15 20 21 LINKS 7 8 LINKS 5 6 LINKS 16 17 GROUP M ODUIE 1 6 PC1398 5 SU PPLED ELECT ELECT ELECT GROUP OUTPUT TRAN SFO RM ER BYPA SS GROUP OUTPUT TRAN SFO RM ER BYPA SS LEC LEC T IGN MODULE POS DEPENDENT REM OVE F AN OUTPUT TRANSFORM ER IS TED M ODULE POST DEPENDENT REM OVE IF TRAN SFO RM ERS ARE U SED
111. ink PCB There are two input connectors to allow consoles where the master modules are located in the centre and one output connector The output and input connectors are connected by the blanking plug during normal unlinked operation BUSLINK PORT BUS LINK PORT GROUND GROUND STUD STUD INPUT BUS OUTPUT BUS INPUT BUS OUTPUT BUS MASTER CONSOLE SLAVE CONSOLE 42 THE METERBRIDGE VU METERBRIDGE CD1310 The VU Meterbridge carries 11 meters indicating the three main console outputs in addition to either the matrix group or auxiliary outputs of the console Signal selection is carried out by switches SW1 SW3 while Cl ensures that on power up the GROUP signals will be displayed is a dual SR Flip Flop and normally the Reset input will be held low by the pull down resitor R3 The Set input is wired to Vss and is thus always low When SW1 is pressed or Cl is charging immediately after switch on Vdd is connected through D1 and R3 to Vss Current therefore flows and a voltage is created across R3 which is enought to make the Reset input if ICla see a logic high The output is thus set to a logic low while the Qbar output will be a logic high A similar situation will arise on and therefore the and B control inputs of the 4052 multiplexers will both be low allowing the and YO input signals through which are the group signals IC12a also reads the control lines As
112. k resistors with one side being phase inverted by The phase reverse switch SW28 located in the left signal path only selects the normal or phase inverted signal and passes it to the high pass filter formed around IC2A This is a three pole high pass filter operating at 80Hz giving a roll off of 18dB per octave When not required this can be completely by passed by SW3 The output of SW3 passes through SW19 the MONO R switch to become PRE L1 which is the pre equaliser signal left It is a source for the auxiliary sends which will be referred to later SUMMING AMPLIFIER IC11A sums the left and right signals together to create a mono signal which has its polarity restored by ICIIB before being presented to switches SW19 and SW20 the left and right signal cut switches When Mono R switch 19 is pressed the left signal is cut and replace by the right signal Similarly when Mono L switch 20 is pressed the right signal is cut and replaced by the left signal If both switches are pressed the output of IC11B a mono signal is fed to both left and right signal paths 21 THEEQUALISER PREI LI is presented to the equaliser which is a four band design The high and low frequency sections are built around IC9A with VR6 providing low frequency boost and cut while VR2 provides high frequency boost and cut The lo middle frequency section is built around IC8 IC202A 15 selects the frequency of operation and VR14 determines the amount o
113. l constructed around VR4 and is mixed to mono to create the POST M signal used to feed auxiliaries The balance control is buffered 1 5 giving unity gain with the control its central position With the control rotated to the right for example the right signal will increase by 3dB while the left signal will be fully attenuated The output of the buffer is fed to the MIX switch SW2 and the group routing switches SW4 through SW7 The feed to the mono bus is through SW3 using the POST M signal Auxiliaries 5 through 8 can be accessed by the stereo input The PRE switch SW1 allows auxiliaries to be sent pre fade mono signal rather than the post fade mono signal The STEREO switch SW13 allows auxiliaries 7 and 8 to be used as a stereo auxiliary using either the pre or post fade stereo signals THE GROUP OUTPUT CD1280 Links 1 and 2 determine which of the group buses will be assigned to the output Only one link should ever be installed IC7B mixes the bus signals and presents them to IC7A which simply phase inverts the signal before feeding the group insert point This is unbalanced the send signal is applied to the TIP of the Jack When no plug 15 inserted the signal 15 normalled through the RING contact and sent to the group fader This is followed by a buffer with 10dB of gain in order that the fader can be run with 10dB of gain in hand A BUS PEAK indicator is fed from the pre insert signal to give warning of h
114. m is taken from the output of the buffer It is fed to the OPCUE bus through switch SW2 and DC is applied to the OPCUEDC bus The buffer output feeds the balanced output stage built around IC6 This stage will simulate a transformer so that it may be used into unbalanced loads without any effect Links 18 and 19 are used to bypass the output transformer connector CON2 and must be removed if a transformer is used Components labelled SUP are provided for the purposes of interference suppression and are fitted to all input and output connections 28 CONI6 may be optionally fitted to feed meterbridge THE MATRIX SECTION CD1286 A 12 by 6 matrix is formed by output modules 3 through 8 The groups account for eight of the inputs with remainder being used by the left centre and right mixes and an external input CONI2 a TRS jack is used as the external input feeding which unbalances the signal and feeds VR2 the level control The output of VR2 is combined with the group and mix inputs to the matrix at IC2A with IC2B being used to phase invert the group mix signals which are simply brought in through level control pots The combined signal goes to the matrix insert point CON3 before going through the matrix output level control VR14 This is followed by a buffer with 10dB of gain allowing the fader to be used with 10dB of gain in hand The output of the MUTE switch is used to feed the AFL switch SW4 in
115. n of rotation This reduces the amplitude of the signal on one side while increasing it on the other to create the panning effect When LCR mode is selected the input signal is fed to a centre tap VRI6A Signal can thus only appear the left or right output of this section of the pan circuit but not both together with the amplitude depending again on the rotation of the pan pot The centre output is derived from the same input signal and VR16B is used to control its amplitude by decreasing the resistance to ground when the pot is rotated away from its central position IC5B buffers the centre signal THE AUXILIARY SENDS The auxiliary sends can use the following three signals PREI PRE2 and POST PRE 15 the pre equaliser signal PRE2 is the pre fader post mute signal and POST is the post fader post mute signal All auxiliaries will normally receive the POST signal however there are PRE switches associated with the auxiliaries allowing the pre fader signal to be selected The default condition is that PR2 shall be the pre signal although links allow this to be changed to the PREI signal Only one link of a pair should ever be inserted Auxiliaries 1 2 3 Link 4 Link 3 PRE2 Auxiliaries 4 5 6 Link 5 PREI Link 6 PRE2 Auxiliaries 7 8 Link 7 Link 8 PRE 2 THE SOLO FUNCTION SW22 is the solo or PFL switch When operated it places DC onto the IPCUEDC bus which is detected by the master module The
116. nents Although more expensive a separate and generously rated linear power supply is used with the CS8 keeping heat and noise away from the console Rack mounting ears are available for permanent installations and the supply is UL and CSA approved At this point it is useful to look at some of the features of the CS8 PAN AND ROUTING The pan pot can be switched between stereo panning mode and left centre right panning mode Left centre right panning to the master outputs provides much improved spatial positioning The technique has been used for many years in the film industry where its benefits are well known In music systems the centre channel generates more solid centre image especially for the star of the show and helps to maintain a stereo image across a wider sound stage In mixed media productions and in church applications the use of a speech optimised centre cluster can improve intelligibility without compromising the music system performance If only a stereo system is being run and the pan pot is switched to stereo mode then the centre output is individually assignable from each input or the from a sum of the left right mix to provide a separate mono output for broadcast film feeds etc Another unique feature for a mixer in this class is individual sub group routing instead of the inconvenient and inflexible paired routing which always requires the use of the pan pot to route a channel to a single sub group The
117. passed by SW4 The output SW4 after buffering by IC8B is known PREI and is pre equaliser signal PRE1 1 source for the auxiliary sends which will be referred to later THEEQUALISER The signal is presented to the equaliser which is a four band design The high and low frequency sections are built around IC2B with VR7 providing low frequency boost and cut while VR2 provides high frequency boost and cut The middle frequency sections are built around IC3 and use a Wein bridge as the frequency determining network VR3 selects the frequency of operation and VR4 determines the amount of boost or cut given to the hi mid signals while VR5 alters the frequency and VR6 the boost or cut for the lo mid signals The output from the equaliser connects to SW5 the EQ IN OUT switch where either the pre equaliser sinal or the equalised signal can be selected to be passed to the insert send CONS a Tip Ring and Sleeve jack is used for the insert point with the Tip being used as the send SP3 and SP4 are filters preventing noise from entering the console The insert return signal is buffered by IC7A and is then presented to the channel fader The output from the fader feeds the channel cut circuit The pre fader signal feeds the auxiliary cut circuit the solo bus when a solo is requested and finally the 3 led signal meter which is driven from IC6 a quad comparator There are SIGNAL PRESENT 04 and PEAK indicators which are powered from a c
118. re is always a crosstalk performance compromise involved and it is done solely for economic rather than for operational reasons as it halves the number of routing switches and removes the need for a pan in out switch The CS8 allows routing to the sub groups either individually or in pairs via the pan pot EQUALISATION The CS8 input module has a 4 band equaliser with high and low frequency boost cut controls and two swept frequency middle sections There is more than two octaves of overlap between the frequency ranges of the mid equalisers while the frequency span extends to from 70Hz to 10kHz AUXILIARIES The CS8 has 8 full time auxiliary send controls allowing easy session setup These are normally post fade but can be switched pre fade Normally the pre fade signal is pre fade post cut but byusing internal links it can be changed to the pre equaliser signal Auxiliaries 7 and 8 can be used in stereo where stereo foldback for example is required CHANNEL CUT The channel cut is a silent FET switch which can be remotely controlled through a connector on the rear of each channel by a simple connection to ground In addition when the channel cut switch is pressed another contact is grounded on the Mute Remote connector This can be used to control a Midi Mute controller cue lights or even to control another channel on the mixer by linking the mute out pin of one channel to the mute in pin of any other channel s Such an application co
119. rry a matrix section and auxiliary output while numbers 7 and 8 carry a stereo return section and an auxiliary output in addition to the group output stage THE GROUP OUTPUT CD1286 Links 1 2 3 4 14 15 24 and 25 determine which of the group buses will be assigned to the output Only one link should ever be installed IC7B mixes the bus signals and presents them to IC7A which simply phase inverts the signal before feeding the group insert point CON4 This is unbalanced and the send signal is applied to the tip of the jack When no plug is inserted the signal is normalled through the RING contact and sent to the group fader This is followed by a buffer IC8A with 10dB of gain in order that the fader can be run with 10dB of gain in hand A BUS PEAK indicator is fed from the pre insert signal to give warning of high signals on the group bus D5 half wave rectifies the audio signal which is then presented to IC11B This is used as a voltage comparator and drives LED13 when the signal exceeds the voltage on pin 6 of ICIIB Any signal greater than below clipping level will cause an indication An AFL feed to the solo system is taken from the output of the fader buffer It is fed to the OPCUE bus through switch SW9 which also applies DC to the OPCUEDC bus The group signal goes to the MUTE switch SW8 from where it splits off to the meter the group output and the sub mix circuitry The balanced output stage built around IC10 will
120. s are applied to the fader buffers and hence the master faders will not affect the level of the tape signal when assigned to the mix outputs of the console This means that a tape can be played through the console outputs with the main faders closed to suppress other signal sources and is known as an intermission playback facility In addition to the TAPE switch the monitor path has a MIX TO MON switch SW4 and a CENTRE TO MON switch SW5 The selected source is applied to fets Trl Tr2 and T18 which will normally pass the signal If a solo is active then Trl Tr2 and 18 will cease to conduct and Tr3 4 and 19 will conduct to allow the solo bus to be fed to the monitor outputs of the console LMON RMON and CMON are the signals presented to the monitor outputs SOLO LOGIC CD1282 There two solo DC buses IPCUEDC and OPCUEDC which allow input and output solos to be treated differently If an input solo is requested the IPCUEDC bus will go high causing Tr7 to turn on and hence its collector to go low 36 This switches off Tr8 which allows Led 16 to turn on indicating input solo The collector of Tr7 is connected through SW7 the SIP switch to the gate of Tr6 causing Tr6 to switch off The effect of this is to disable any output solo audio that is active giving the console input solo priority The cathode of D7 is now low causing Trs 1 2 12 and 18 to turn off 11 inverts the output of Tr7 causing Trs 3 4 1
121. s followed by a buffer with 10dB of gain in order that the level control can be run with 10dB of gain in hand An AFL feed to the solo system is taken from the output of the buffer This is fed to the OPCUE bus through switch SW1 and DC is applied to the OPCUEDC bus The output of the buffer feeds the balanced output stage built around IC3 This stage will simulate a transformer so that it may be used into unbalanced loads without any ill effect Links 1 and 2 are used to bypass the output transformer connector CONI13 and must be removed if a transformer is used LEFT CENTRE AND RIGHT MIX CD1281 2 IC4A mixes the left bus signals and presents them to ICAB which simply phase inverts the signal before feeding the auxiliary insert point This is unbalanced and the send signal is applied to the TIP of the jack An unbalanced feed to a tape recorder is also taken from this point and is suitable for machines operating at 104 feed of the CENTRE or MONO mix is also summed with the left and right signals for sending to the tape recorder outputs When no plug is inserted in the insert jack the signal is normalled through the RING contact and sent to the master fader A BUS PEAK indicator is fed from the pre insert signal to give warning of high signals on the master bus half wave rectifies the audio signal which is then presented to IC7A used as a voltage comparator to drive LED13 Any signal greater than 3dB below clipping level will ca
122. st be observed when these products are taken into service to maintain compliance with the above directives Details of these special measures and limitations to use are available on request and are also contained in product manuals 11 INSTALLATION GUIDE There are a number of points to consider when installing a mixing console Many of these points will have been addressed before the console is even unpacked but it 15 worth repeating them again POSITION The console should be located in a convenient space commensurate with the use to which the console is being put Ideally cool area 15 preferred not in close proximity to power distribution equipment or other potential sources of interference Provision should be made for some flat surface surrounding the console to prevent people using it as table top One of the worst fates that can befall console is for a cup of coffee to be tipped into it by someone resting it on the control surface POWER The power supply should be located as far from the console as the connecting cable will allow a 5 metre power cable is supplied with the console It should be set for the appropriate line voltage and plugged into the mains outlet using the supplied cable If the power supply is rack mounted then be sure to leave space above for ventilation 2U is suggested SLEEVE RNG TP RNG CONNECTDN SLEEVE AND CABIE CIAM P 1A T
123. tage supply This is smoothed by Cl C2 and C4 from where it is fed to a TL783C the regulator R2 and R4 are used to derive a programming voltage which is applied to the TL783C D5 and D6 will protect the regulator from inverse voltages that may be applied to it 5 and C15 smooth the regulated output which is applied to the output connector of the power supply D7 indicates that the phantom supply is working There is a delayed output from the power supply which may be used to activate relays in a console This facility is not used when connected to the CS8 console There is no connection within the power supply between OV and mains earth chassis There is a ground lift switch which when operated will allow the console to float completely free from ground If the ground is lifted then the console chassis is connected to OV Audio in the power supply DC Pinout 1 Not connected 2 18 Volts 3 18 Volts 4 0 Volts 5 48 Volts 6 Chassis The PSI2860 power supply is completely tested in accordance with IEC65 5th edition 1985 amendment number and EMKO TUE 12B SEC 205 91 45 Always connect the power supply to the console and the electricity supply before switching on Fusing 240 230 220 CSM02 0006 3 15 120 100 90 5 02 0007 6 IMPORTANT ALWAYS DISCONNECT THE POWER SUPPLY FROM THE MAINS SUPPLY BEFORE OPENING REFER SERVICING TO A QUALIFIED PERSON OR DEALER 512860 will be factory set to t
124. this Declaration 89 336 EEC Electromagnetic Compatibility Directive amended by 92 31 EEC amp 93 68 EEC 73 23 EEC Low Voltage Equipment Directive amended by 93 68 EEC The Products Covered by this Declaration Model CS3 Mixing Console Model CS8 Mixing Console Model CS12M Mixing Console The Basis on which Conformity is being Declared The products identified above comply with the protection requirements of the EMC Di rective and with the principal elements of the safety objectives of the Low Voltage Direc tive and the manufacturer has applied the following standards EN 55013 1990 Limits and methods of measurement of radio disturbance characteristics of Broadcast Receivers and Associated Equipment EN55020 1988 Sound and Television Broadcast Receivers and Associated Equipment Electromagnetic Compatibility EN 60065 1994 Safety requirements for mains operated electronic related apparatus for household and similar general use The technical documentation required to demonstrate that the products meet the requirements of the Low Voltage Directive has been compiled by the signatory below and is available for inspection by the relevant enforcement authorities The CE mark was first applied in 1996 Signed G M Squires Authority Product Support Manager Date Ist January 1997 Attention The attention of the specifier purchaser installer or user is drawn to special measures and limitations to use which mu
125. to the inner contacts of CON3 the line input TRS jack With nothing inserted into the jack socket the signal connects to the normal contacts and is then fed to an attenuator which is activated by selection of the line input Resistors R2 and R3 feed phantom power to the microphone input and this is DC blocked from the line input amplifier by C2 and 5 SP2 and SP3 are filters providing protection from high frequency signals entering the inputs Additional filtering is carried out by capacitors C37 C38 C39 and C40 Resistors R7 R8 and R9 form an attenuator when the line input is selected reducing the input signal by 30dB C45 and C46 again provide DC isolation and there is provision at this point for the insertion of an input balancing transformer Note that if a transformer is fitted R14 R214 should be changed to 1k Where a transformer is not fitted two resistors R10 R11 carry the signal through to the input amplifier D1 D2 D3 and D4 provide clamping for excessive input voltages and the signal is applied to the bases of transistors Tr4 and Tr5 VRIA is the front panel gain control and this is connected through the MIC LINE switch such that in the MIC position the gain range is 20 to 70dB while in the LINE position it is 10 to 20dB Signal is taken from the collectors of Trs 4 and 5 and applied differentially to the input of The output of is fed back to the emitters of the input transistors through 27
126. trol The ideal place to insert an external device is pre the send master control and this is the case in the CS8 EQUALISER CURVES The following graphs illustrate the equalisation and filtering responses of the CS8 console CS8HFLF HF LF EQUALISER RESPONSE CS8MID MID FREQUENCY EQUALISER BANDWIDTH ADJUSTMENT CS8MIDI MID FREQUENCY EQUALISER AMPLITUDE ADJUSTMENT CS8MID2 MID FREQUENCY EQUALISER FREQUENCY ADJUSTMENT CS8HP HIGH PASS FILTER RESPONSE AUDIO PRECISION CS8HFLF AMPL dBr vs FREQ Hz 20 000 11 APR 97 11 31 21 15 000 10 000 5 0000 0 0 5 000 10 00 15 00 20 00 AUDIO PRECISION CS8HIMID AMPL dBr vs FREQ Hz 20 000 15 000 11 97 11 37 11 10 000 5 0000 0 0 5 000 10 00 15 00 20 00 10k 20k AUDIO PRECISION CS8LOMID AMPL dBr vs FREQ Hz 20 000 11 97 11 41 51 15 000 10 000 5 0000 0 0 5 000 10 00 15 00 20 00 10k 20k AUDIO PRECISION CS8HPF AMPL dBr vs FREQ Hz 20 000 THE HIGH AND LOW FREQUENCY EQUALISER RESPONSE THE HI MID FREQUENCY EQUALISER RESPONSE SHOWING FREQUENCY RANGE THE LO MID FREQUENCY EQUALISER RESPONSE SHOWING FREQUENCY RANGE THE
127. uld be a podium switch which would allow the speaker to override other channels for example SOLO PFL MONITORING While it is normal to find PFL AFL on almost all mixers the CS8 goes a step further The input solo is arranged to have priority over the output solo This means that there is no need to de select an output solo when selecting one or more input solo controls and when the input solo is released the output solo is re established A master solo level trim control is located on the master module for level matching and the level of the solo signal is displayed on the left mix bargraph An additional solo feature provided is Solo In Place In this mode soloing any input channel will cause all other input channels to be cut thereby allowing only itself to be heard in the mix correctly panned and at the right level along with any stereo effect return channels This is of great benefit during set up and rehearsal and is much more useful than the standard PFL A switch on the master module selects Solo In Place mode SIGNAL LED s The value of effective metering of signal levels throughout the signal path cannot be overestimated Signal present and 0dB LED s on all input channels give confidence to the operator while peak overload LED s indicate when the channel is being driven close to clipping However it is unusual to find a peak overload LED at the very place where it is most needed at the summing bus mix amplifiers operatin
128. urrent source built around Tr8 The auxiliary cut allows the creation of a PRE FADE POST MUTE signal which can be defeated if required in addition to the POST FADE POST MUTE signal THE MUTECIRCUIT Trl is the CHANNEL MUTE fet which is buffered by IC4A and following this the signal is known as POST This signal routes to the groups when panning is not used and also feeds the auxiliary sends when selected as POST The pre fade signal goes through a second AUXILIARY MUTE circuit built around Tr2 to give a PRE FADE POST MUTE signal called 2 is normally installed allowing the PRE FADE signal to be muted when the channel mute is operated By removing and installing LK2 the PRE FADE signal will not mute with operation of the channel mute switch 15 In order to improve the attenuation of the mute circuits small amount of signal is fed forward to cancel with any residual from the output of the fets Resistors R140 R141 and R142 perform the feed forward for the channel signal while R99 R100 and R101 are used for the auxiliary cut circuit The mute circuit can be remotely controlled either through the external remote connector or from the four mute groups provided A SAFE button allows the mute groups to be disabled on the module When the local mute button is pressed a ground is placed onto the remote control connector This can be used to operate external equipment such as a midi sequencer or it could be connected to other c
129. use an indication 35 The master fader is followed a buffer with 10dB of gain in order that the fader can be run with 10dB of gain in hand The output of the buffer feeds the balanced output stage built around IC8 This stage will simulate a transformer so that it may be used into unbalanced loads without any ill effect Links 3 and 4 are used to bypass the output transformer connector CON14 and must removed if a transformer is used A feed of the fader buffer output is also used to feed the centre output of the console when SW8 18 depressed The signal paths for the RIGHT and CENTRE signals are identical to that described for the left signal MONITORING There are left centre and right outputs for speakers a stereo headphone output and 3 master meters Solo audio is automatically switched on to the monitor outputs when a solo is active and there is an external tape input which can be assigned as a monitor source or to the left and right outputs of the console TAPE PLAY INPUT CD1283 The external tape input is unbalanced and buffered by 5 having a non inverting gain of 5 5dB The signal passes through CONII CD1283 to CON10 CD1282 and from there to the level control VR2 The inputs to the level control are also taken to the TAPE switch SW6 The outputs of the level control feed IC13 which has 6dB of gain before being presented to switches SW2 and SW3 which route it the L R and MONO outputs of the console The signal

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