M463 — Submaster Module

M463 SUBMASTER_MODULE The M463 is combination SUBMASTER/EQUALIZER modu le, des igned accept combined or mixed feeds from previously a5s igned mixing channe] inputs As may be required the unit Processes the mixed signa ) , equa]izes it and routes to the appropriate points within the conso]e system. 0 , 6 F8 19j9b MJb;#bnid 0ng LinJUp Input andSumming_Amplifier Tctjro) 9j3,2 /.Jr The signa ] originating from the externa| mixing network is Hj : " app]ied to the edge connector P1 Pins and and subsequently connects to the summing current nodes 0 f the 4-141 umming am- plifier To facilitate module testing, direct input i$ provided on P1 , pins and 697 0s_ 3*1 7J9 J €Jn 70 WTstzcq EQUALIZER_Section 40F e 0| (TnZ %#o Jv{J 39t The output of the 4-141 {cmmin?

amplifier is routed to one 0 f the norma ]y closed contacts the EQUALIZER INSERT switch Sw13 to a 1 ]ow bypassing_ 0 f the equa]izer Additionally, the 4-141 output is fed to 21 , the first 0 f four cascaded umming amplifiers 21 through 24 . n #C 21 through 24 serve as ~mixingoput and isolation amp]ifiers They are used to mix the Primary gna with correction s igna ] derived from the outputs 0 f the 4-126 filter networks resulting in raising or lowering the Tevel selected portions o f the audio spectrum AdditionaTy_ they isolate the filter networks from each other and prevent interaction between them, resulting in accurate and repeatable equalizing performance_ The Cut/boost controls R2] R22 and R23 feed an in-phase or out-of - Proportiona] signa to the buffer amp]ifiers 25 , 26 and ZbasesPecteveis The level 0f the s igna ] fed to the buffers dependent on the CUt/boost contro] setting with maximum Teve occurring at either end of the Potentiometer and nu]1 setting at the potentiometer mid-position.

Ful] clock- wise or full counter clockwise Potentiometer settings wil result in the maximum equalization 0 f +15 dB and -15 dB respect- ively 6n@[ 2 Jn 2$' ; ; [ Fo-q8j noijiofrkb J06 92 [0n Vo ( Jn ; 70 ! e J (rL Ta; 2 -1

"463 SUBMASTER MOO ULE

The outputs of buffe r IlIplffiers 25 , 26 and 28 a re routed to the 4-126 pri nted circuit baird whf ch contains three bandpass filte rs c o rr es pondi ng to uch of t he t hree sections of the equal her. Eac h bandpus fil ter passe s o nly I portion of t he slgnl l delive r ed to ft f r o~ the buffer , with the cente r frequency and band width deter.fned by t he FREQUEN CY, -Q- and PEAK/SHElF con trols. HIGH FREQUENCY e qual f zat f on is cont fnu ous l y I dj us t l ble f r a il 1 . 6 t o 25 kHz and Is c o ntro l led by Rl/R 2 . R21 dete r _ines th e aacu n t of CUT o r BOO ST. A t otal range frO Il - 15 to +15 dB 15 prov ide d . Vittl SWll de pr es se d t he unit w111 pr od uce a hi gh f re q ue ncy SHELVI NG Cha rac te ris ti c . When SW l l i s r e l e ase d , both pos it iv e or negat h e PEAKING ca n be obt a1ne d. The Q co nt r o l RJ is effe c the only with SWll i n t he PEAKING mode a nd cov e r s a Q-fac t o r r a nge of 2 ~ o 10 . Ttle MID FREQUENCY e q ue t t ze t t en is a dj us t e d by R4/R 5 . c ove r i ng a f r equenc y range f r oll O. 4 to 6 . 4 kHz. CUT/B OOST is co ntro ll e d by R22. R6 adjus t s the Q-hcto r. s es t t tve or negathe bell - sh ap e d PEAK ING equa lfzation i s applica bl e i n the a i d f re que ncy ra nge. The LOW FREQUENCY equalf zatlon ope r a t e s s i aUa r ty t o the hig h f req uen cy s ect ion. R1/R8 Idj usts t he fr e q uenc y ra nge f ro a 25 to 400 Hz . CUT o r 800S T are contro ll e d by R23, Q by R9 and SW12 dete rllines the c ho fce of efther SHElVING or PEAt:IfiI G chlra cteristics. The three sig nals which lu ve the 4- 126 f i lter are "ce r-rect t e a sfgnals- e it her i n-phase or 180 degreu evr-e e-snase with th e equllfz e r t n put and bl ndpas s l i .t ted as dete r ained by the equalf zer sectfo n a nd control s etti ngs. Thes e - c o r r e c tfo n s 1gna ls - are t he n sUlilied t o ge t he r wit h t he pr t a ary (Inpu t) s l gnl l by t he o per ati o nal u pl i ft er s n, Z2 Ind Z4 thu s f o r _lng the eq ul ltzed output s fg nal. a

TIlts co ncept o f I dd fng a co r rection s 1gna l togethe r wft h th e .c

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CIRCUIT DESCRI PTION " 46 3 SU8MASTE R MOO ULE

The cOlllpound signal as ge ne ra te d a long th e e nt i re processing chaln a ppe ars a t t he output of Z4. Fro . he r e it is routed to one of t he no r .all y open conta c ts of t he EQUALIZER I HSERT switch SV13 . Thus , with SV13 dep r esse d, the eq ual l ze d si gna l i s fed t o t he o utp ut a.pl if1e r 8 - l 09A . In a dd i t ion , as SV13 is dep r es sed, t he LED i ndic a to r is activated. 8 - l 09A Output Alll pl i ff e r and I NSERT Tile 8- 109 A upl ifhr r aises the s 1gna l to -10 d81ll nomlnally. TIle o ut put is acthely balanc ed Ind fed to the " i ns e r t poln t " at p1n s 22 I nd Z of module conn ector PI. Tilts point is usually co nnec t e d to a ' no r ma l led' set of insert jacks , with t he o ut put s 1de con nected to til e subma ste r fader.

The o ut put o f the balanc ed fad er 15 returned to t he 1I0 dule o n p l ns 14 a nd R of PI. Thl teed f or t he PREFADE REVER8ERATION SENO ( RS ) , th e PREfADE FOLDSAC K ( f 8) and t he PREfAOE PU811 C ADDRESS ( PAl c hann els 15 bro u9ht out at PI , pi ns 20 Ind X a nd origi nates nor lllllll y fr oe t he in pu t s t ee of th e fll.de r .

An uternal slate lnp ut is provided a t co nne c t o r P2 , pins 8 ud J. TIle s hte signll l ls i njecte d fn place of ti le r e guh r signa l whe n r ehy Kl is llctivued. Tri . pot RI42 serves to cllltbrate t he shte teve t . 8- 10if 800sterAliplifier Thls a. plf fi e r ope r a t e s with I 9a1n of 33 d8. It reco vers t ile IS d8 ~1 n-ha nd · l oss incurred by the fll.de r llnd prov ides addft1o na1 9a 1n t o pr od uce a nOlllinll level of +8 dBIl llt its a

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WA R D - B E C K S Y STE M S LTD

,. 46 3 SU8MASTER MO DULE

OIRECT Output A DIRECT output f rom th e 8-I09F alllplf f h r is pro vi de d a t conne ctor P2 . pins 12 lind N. Asi de from other uses within a give n c o ns o l e system , the DIRECT output feeds the sub llaster VU me te r and s e rv es as the take off point for monitoring . Maste r Outp ut s a nd PAN Cont rol Two l e ft a nd two right outputs a r e a lso bei ng fed by t he

contro| RI/2 Cont nuous variable from 1.6 to 25 kHz . the PEAKING mode the frequency calibration refers to che center frequency of the be | I- shaped PEAK | NG response curve In the SHELVING mode the calibration defines the dB corner point from the max mum ava lable SHELVING BoOST or cut 0 f 15 dB . RS RS PRE PST High FREQUENCY sect ion, MODE SELECTOR Swi - tch Sw: When depressed, the HF section of the equalizer in the SHELVING mode . When re leased, the Pperates mode selected. 64412.8 MID FREQUENCY section, FREQUENCY

controi R4 /5: Cont nuous variable from 0.4 to 6.4 kHz . The calibration refers to the center frequency of the be | [- shaped PEAKING response curve 10 ~CkHz LOw FREQUENCY section, FREQUENCY

controi R7/8 Continuous variable from 25 to 400 Hz. the PEAK ING mode, the frequency calibration refers to the center frequency of the be | I- shaped PEAK ING response curve In the SHELVING mode; the calibration defines the dB corner Poie nt from the max imum ava i lable SHELVING BOOST or CUT of 15 dB . MF 10 Q € kHz LOw FREQUENCY sect ion, MODE SELECTOR Sw i tch Swi2: When depressed, the LF section of the equa izer operates in the SHELVING mode When re leased, the PEAK |NG mode selected J00.200 300 10 0 € Hz EQUAL IZER INSERT swi Ech SW13: When depressed, this switch inserts the EQUALIZER section intothe signa [path and act vates assoc iated LED. When released, the unequal ized nput signa | is bypassed directly to the 1094 output amp ifier. PAN switch SWIl: When depressed, enables PAN control. PAN SOLO switch Sw16: When depressed_ the signa fol lowing the sub-master fader TS fed to the SOLO output

""63 SU8MASTER MODULE

PART DESCRIPTIOH M" MFG PART NUMBER xeee t "" 0 Capl ~ lt or 33 uF/lO 'f 220 pF 3.9 pF Ph!l1ps TJ90 D336M010A5 2222-630-032 21 2222 -638-09398 220 pF 2222 -630 -03221 "cs 3.9 pF 2222 -638-09398

" C7 C8 1 50 uf / 6 'f 33 uF/lO V 220 pF Ke.et Ph !1ips T390E15 7M006A5 T3900336/11010A5 2222-6 30 -032 21 CO 3.9 pF 2222-638-0939 8 "a 220 pF 2222 -630-03221

'" Cl2 Cl3 3. 9 pF 6. 8 ~F / 6 'f Ke.et 2222-638-09398 T39086~5M0 06A5

". C15 ca p a~ H o r 33 00 pF 15 pF Aselco Phll ips CQ92-KC-332M 2222-638-10 159 Cl6 6.8 ~F /6 V Ke ~et T39086 ~5M006A5 en C18 15 pF Philips 2222-638-10 159 ", "a delete 6.8uF /6 V KelJet T3908685/11006A5

C21 C2Z caa Clpa~1tor 6.8 ~F /6 V xeeet T39086~5HOO6A5 C24 C25 1500 pF Ase 1co CQ92-MC-152M

C26 15 pF Phili ps 2222-638-10159 C27 6.8 uF/6 V Ke~ et T3908685M 006A5 C28 150 uF/6 V T390E157M006A5 cas 6. 8 ~F /6 V T390 86~5 J1110 06A5 oa a .c

C31 de lete ps

C32 Capacitor 6.8 uF/ 6 V Kelllet T3908685MOO6A5 BS

C33 del e~e O. W

0' Capac ito r 22 uF/ 2 5 V s teeens B4131 3-A- 5226 - Z :// tp ht

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W A R D - B E C K S V .TEMS LT D .

illll...!:..!ll 1'1463 SUBMASTER MODULE

PART

K46 3 SUIlHASTER MODULE

PART

'81 OESCRIPTION

Res l : t or %11 51 ... KFG PART NUMBER

R82 R83 delete '" 15K Ph!11 PS

R8. Resl:to r %11 51 390 R8' 390 '86 '87 '88 '" 390 1Kl '88 090 1Kl 390 ' 91 15K 092 15K 093 15K 09. 15K

'" 15K

15K '" 097 '98 15K 15K

'" RIO O 15K 15K RIOl 15K R1D2 15K R10 3 15K R1D4 15K R1D5 15K RI06 15K RI07 d e le ~e RI 0 8 Resis to r !:ill 51 RI 09 RllO de le te '" a .c

R111 Ilesi:to r !:III 51 10K ps

RJ12 10K BS

R113 10K R114 10K W

R11S '" ://