M463J — Submaster Module

8-109 AMPLIFIER_SERIES The 8-109 series 0 f amplifiers are utilized as an internal` component within various WBS series of audio conso le modules Each 8-109 amplifier mounts as plug-in assembly onto the module motherboard Jiqjpo The 8-109 amplifier Provides an actively balanced output with +30 dBm capab ility It employed as an output or Wo % booster amplifier with either ba lanced or an unba lanced input nidm f Thefollowing specifications apply to the 8-109 series 0 f amp ifiers 20921 J C , 2 8 / Unit Input Gain 8-109 2m0 [ * Ba Tanced Uw) 15 dB 10 3 00[ - 8 9t DfT ; < 8-109_ SI 1 0 Unba ]anced 1f 6 2, 7 dB - I0 djiw [ 5 8 0 Hcirut 8-109B Ba ]anced 18 dB 8-109 Ba ]anced J7|] 39 dB 19:t [ 1690 f [ Srt bn 5 8-109D Unbalanced 9d } 29 dB J u(iuo 906f 2 79}twd 00 / *J92 8-109E Ba anced 29 dB 8-109F 90} Balancede0e9 33 dB U 47 ( T0C6m 9n9 0wJ 8-1096 Ba anced 9J nt 23 dB L0 5 : 19() ; [ 4M16 6 [ J03191+fb Frequency Response: +0.2 dB from 20 Hz to 20 kHz 2 63 6f Ct Juqn ; Noise: 108 dBm EIN from 20 Hz to 20 kHz Harmonic Distortion: Less than 0.18 THD from 20 Hz to 20 kHz at +30 dBm 67306 ! 6d output (typically less than 70 0 . 028 at mid-band) _ 7S0j006 70 Jfu € 933 Source Impedance 600 ohms or less , ba lanced or unbalanced_ Input Impedances Models with balanced input: 5k q0% ohms 2 % min imum. Towfnoj 2unj bn $ 8-109A: 30k ohms 8-109D: 4700 Jaw0 | 941 ohms B61 0 95 [if0 Osin 9 & ` { 1 *06 9] JJ92 Input Levels: Depen Iding on gain 0 f 6 | 401 4 cular Peveis mode1 0 ~and system operating Ts (Refer 6 M to gain specifications above 66n 794q1 97: CJvo 935 2 6 29] TS0 0 (A0 reuo?r} [0 nffw 99 TtT | GmE 9f $ 01 { 60 Llto0 8-109-1-1

WAAD-BECK SYSTEMS LTD_ JIJ Smetbye AOsc-DAAI

noted be low MFG MFGPART NUMBER c6 C1l Capacitor 4.1 pF Philips 2222-638-09478 R15 Resistor #l 5% 2k4 WBS recommends the use of replacement parts ma de by the specified manufacturers for continued optimum equipment performance 8-109-2-5

WBS M46JJ Pastar gsagaent Elat Hhen 055004 outont "Lmino TCSGcrt externd Mditut Sumn!m MASTER Assig"He"T swi Icm When depressed Ounou euman TuMng Ferittort Madeer summni na PubLIC hooress Shlz depressed pualic MDDRES5 LEVFL Dutou cunino RL1/LZ Controle Jeve | PAEAAM PiPuof pfAOI cnd ee PubIIG !loxiss" optp aftet {Post) subuastc PotRess (PRE) FOLCACE aua output use cuneno 380/40 onerote leve I PA-C-FB PRE 'Pus FCLojack Gwicr cncice ~pickoff poin FOLDLAC: DULDu Dror (ren '{Fost) Guta DlDRAC swi tches deoressed- OLLDUC Swie siana| Nith either Latl ouLDUT 0u9es controi XS7/g6 Lontroe REU SND Etrcnct redtenied r APPTOPT auepu t iner switct PRL/Post swite ockorfy pqinie afot (pDsti cncic SEAD cupm eitret quamat Fadem control bctuccn Datqncc Position ci0nne | 5 !dra Ju65 (eft rianti Aercn Wnan dcpressed Cnaja contro Mnina PAN slo Een FaSSad 5o28" Dutput Dosead Issuldall Uisim WBS WARO-BECK SYSTEMS Dr4?il M463] SUBMASTER MODULE

8-109 AMPLIFIER SERIES The 8-109 series 0f. amp]ifiers are utilized as an internal 440 component within various WBS series 0 f audio console modules _ Each 8-109 amplifier mounts as a plug-in assembIy onto the 660 } module motherboard _ T X6m #80 06 [4v6} Jigjuo The 8-109 amp]i fier provides an actively ba lanced output with a +30 dBm capability.

It is employed as an output or swo9 a booster amp]ifier with either a ba ]anced or an unbalanced input _ 99*esb = 6t99m9T. Inshdma The following specifications apply to the 8-109 series 0 f amp]ifiers _ "82 28 _ 200/2090;0 08 An 88 ) Unit Input Gain 8-109 00 2noN Ba Ianced 0A6 dw> 15 dBaios e01 -8 943 70 erfj 2 deuo 8-109A S 16 Unba ]anced 0d P0 7 dB 1 10 difm: If 8p 8-109B Ba ]anced 18 dB 79f+[ 8-109c 36 29) % Ba ]anced i K 39 dBn ; 169m| [_ o#T bns 8-1090 $ Jiojvo Unba lanced sM: 9v 29 dB 906f 2 i9hTud 801+j92 8-109E Ba ]anced 29 dB 8-109F U9nf 04f Ba lancedeore 94) 33 dB ; etsm- 9m} 0] CX] 8-1096 ~9 3 Ba ]anced ^Ti 910 23 dB 79 mt96" 00 0*q 0j 8q [6+03t9+* b Frequency Response: +0 .2 dB from 20 Hz to 20 kHz_ 0269 a0} c} bszu 2 : Juqoi Noise: -108 dBm EIn from 20 Hz to 20 kHz.

693n6Ta4 #iT Harmonic Distortion: Less than 0 . 1% THD from 20 Hz to 20 kHz a t +30 dBm 62206T6d output (typically ess than ` 70 {otf? 0 . 02% a t mid-band) _ Yqdjone 2 } 9JT002 bsonslsden 810 Tas 1 0 9T0j62+ Source Impedance: 600 ohms or less , ba lanced or unba lanced. 9jom pr i ' 1930 '85 MNqms 70+ Input Impedances : 4ma Models with ba lanced input: 5k ohms 6*29 minimum_ S 94f 2/0yfnoj 2uf bu; 8-109A : 30k ohms 94f n 8-109D : 4700 ohms 90; nt bosfiifu nsmk t0ftf[906 J9w0f 4of 90} dngo* Z0 SI } 007jJ92 Input Levels: Depending on gain 0 f particular mode 1 .

nNf4ma 04, and system operating Tevels 0|s01 (Refer to` 90J 10 94: gain specifications above. )qtua bs3n6[6d Lsd 794qu 2 6 29761990. (A0 deuo7d} [Q Ottw II} 79) 4m2 9n+ ot6q xtie# 0 8- 109-1-1

8-109 AMPLIFIER SERIES

inverting amplifier with E1 exte rnally strapped to E6. The output of all models of the 8-109 series is actively balanced and is brought out at pins E4 and E6.

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8-109-1 -3

WARD-BECK SYSTEMS LTD

M463J SUBMASTER MODULE Ga in: 18 dB +0 .5 dB (with fader in 15 dB "in-hand" position) . Frequency Response: +0.25 dB from 20 Hz to 20 kHz _ Noise: 70 dB be low +8 dBm nomina 1 output Tevel (20 Hz to 20 kHz) _ Harmonic Distortion: Less than 0 .25% THD from 30 Hz to 20 kHz at +28 dBm or Iess _ (Typically Tess than 0 .

05% across most 0 f bandwidth . ) Source Impedance: Summing: 30 , 000 ohms _ ba lanced. Input Impedance: Summing: Less than 5 ohms _ Output Impedance: Less than 100 ohms (at 8-109A output and DIRECT output) Less than 200 ohms a t MONITOR output. Load Impedance: 600 ohms ba lanced (at insertion po int and DIRECT output) .

Output Level : At insertion point: -10 dBm nomina] . At DIRECT output: +8 dBm nomina] +30 dBm maximum_ Phas ing: Input and output terminals designated by numbers are in phase _ Power Requirements : +25 volts dc , 60 MA nominal , 200 mA maximum_ Ambient Temperature: 0 to 60 degrees Celsius _ Dimensions : 1.6" wide X 7" high X 6 .

5 " deep (41 mm X 178 mm X 165 mm) . 1-1

M463J SUBMASTER MODULE

The M463J is designed to accept combined or mixed feeds from previously assigned mixing channel inputs. The assigned mixing channel inputs are amplified and routed to the appropriate . points within the console system. Input and Summing Amplifier The signal originating from the external mlxlng network is applied to the summing current nodes of the input amplifier via edge connector pins I/A. Ql through Q8 form a summing amplifier comprising a balanced input and an unbalanced output. To correct for small system level variations, trim pot R7 is .i ncor por a t e d as part of the preamplifier. The differential balance adjustment control R6 serves to minimize common mode type signals originating ahead of the amplifier. C12 couples the output of the summing amplifier to a low-pass filter consisting of R22, R23, R24, C13, C14, CIS and ZI. The 3 dB roll-off point is located at approximately 40 kHz. The output of ZI is coupled through C18 to the output amplifier 8-109A. 8-109A Output Amplifier and INSERT The 8-109A amplifier raises the nominal signal level to 0 dBm. The output is actively balanced and fed to the "insert point" at pins 15/5. Pins 15/5 are usually connected to a normalled set of insert jack~, with the output side connected to the submaster fader. The fader output is returned to the module on pins 9/K. The feed for the PREFADE outputs is normally picked up at the mixing fader input and is returned to the module via pins 14/R. 8-109F Booster Amplifier a .c ps

This amplifier operates with a gain of 33 dB. It recovers the 15 dB "in-hand" loss incurred by the fader and provides BS

aaditional gain to produce a nominal level of +8 dBm at its //W

output. : tp ht

2-1

WARD-BECK SYSTEMS LTD

M463J SUB MASTER MODULE

DIRECT Output and MON·nOR Output · The DIRECT output appears at pins 16/T. An additional isolated output is provided at pins 17/U. The latter output may be utilized as a metering and/or monitor takeoff . Care should be taken to restr ict loading of this output to 5k ohms or higher. Master Outputs and PAN Control A left and a right MASTER output are also being fed by the 8-109F output signal. They are routed via PAN switch SWI and PAN control R29 to R32, followed by two MASTER ASSIGNMENT SWITCHES SW5 and SW6. The master outputs are connected to the appropriate module output termina ls via summ ing network resistors to be combined with feeds from other submaster mixing channels. Auxiliary Ou tputs In addition, a SOLO output is available via SW7, to allow selective monitoring of the particular submaster channel . Other feeds originating from the 8-109F amplifier are supplied to the POST FADE RS, FB and PA channels. PRE/POST Selector Switches and Level Controls PRE/POST selection of the RS, FB and PA channels is facilitated by switches SW2, SW3 and SW4 respectively; each switch is followed by its associated level control. The outputs of the level controls are fed to the summing outputs via individual assignment ~ switches . Following the assignment switches, these outputs are fed to their appropriate mixing "buses via summing resistors. Control Functions A dc control contact closure is provided through operation of either one of the MASTER ASSIGNMENT switches SW5 or SW6. A further control contact is available on the SOLO switch SW7. Power Supply Decoupling a .c

An active power supply decoupling network consisting of Q9 ps

through Q14 provides isolation between the module and the ±25 BS

voJt supply rails . Transistors Q13 and Q14 monitor the supply current. In the event of excessive power supply demands, such //W

as from component failure or amplifier overdrive , the current flow ing through Qll and Q12 will be limited. : tp ht

2-2

WARD-BECK SYSTEMS LTD .

PARTS LI ST M463J SUB MASTER MOOULE

PART DESCRI PTION MFG MFG PART NUMBER Cl C2 C3 . Capacitor 330 uF/6 V .. delete Kemet .. T390E337M003AS

C4 C5 10 pF Philips 2222-638-10109 C6 C7 15 pF 2222-638-10159 C8 3.3 pF 2222-638-09338 C9 .. .. CI0 10 uF/25 V Kemet T390CI06M025AS C11 C12 33 uF/lO V T390D336MOI0AS C13 1500 pF Aselco CQ92-MC-152M C14 220 pF Philips 2222-630-03221 C15 33 pF .. 2222-638-58339 C16 10 pF 2222-638-10109 C17 4.7 pF 2222-638-094 78 C18 33 uF/lO V Kemet

M463J SUBMASTER MODULE The M463J is designed to accept combined or mixed feeds from4 previously ass igned mixing channe] inputs _ The ass igned mixing channel inputs are amp] fied and routed to the appropriate u 9ht points within the console system_ Uif 2417 76 bsbfvo 9 bazk9too bfwox T0 J63 'WJtaom J0bd6 enfadom 70 Input and Summing Amplifier 710 2td} 70 eotbso!

JJn Jze? 0} n94s} The signa ] originating from the externa1 mixing network 1s 121254 app ied to the summing current nodes 0 f the input amp]ifier via edge connector pins 1/A.^ 9T6 J0qaw0 J3T2AM ret? 00; 78 ` . 079 3n 4af6w2 Wa9: 6tv bsjvoy 976 taat Tsnet? Juqfug Q1 through Q8 form a summing amp]ifier comprising a ba lanced 217 input and an unba lanced output _ To correct for sma 11 system 6w2 Ieve variations , trim pot R7 is incorporated as part 0 f the 4fv0 preamp]ifier- The differentia] ba lance adjustment contro] R6 JW serves to minimize common mode type signa ] s originating ahead 0 f the amp]ifier_ C12 couples the output 0 f the summing Aa_ amp]ifier to a 1ow-pass filter cons isting 0 f R22 R23 , R24 , C13 , C14 C15 and 21_ The 3 dB roll-off point is ocated at 40 evtjoa[92 approximately kHz MTnqms 420[ Xj ectfsniefy0 2b99} 20 The output 0 f 21 is coupled through C18 to the output amplifier 8-109A _ Oiiio) [9velbo 2252k42 30+2al22,1204384 8-109A Qutput Amplifier and INSERT 0f) T0 0onjjsts2 7204.1399 aw0 39.23 bn & Zw?

SW? 29nojtw? %d The 8-109A amp] ifier_ raises the nomina 1 s igna ] Ievel to 0 dBm . %d The output is actively ba lanced and fed to the "insert point" 1os at pins 15/S . 26mi 29doffke fnemnet22s 9d$ ee+woffot 2sfJf}w2 1297 23200 Jp x(a g0 G9E ~7*0; 01 b9: Pins 15/5 are usua ly connected to a norma ] led set 0 f insert jacks , with the output s ide connected to the submaster fader .0 The fader output is returned to the modu le on pins 9/K .

The Pb feed for the PREFADE outputs is normally picked up at the 7944+9 mixing fader input and is returned to the module via pins 14/R. 8-109F Booster Amplifier Eu[9402@ L41u? 19*09 nA This amp] ifier operates with a ga in 0f 33 dB It recovers the Mf 15 dB "in-hand" Ioss incurred by the fader and provides OV: fTov additiona ] ga in to produce a nomina ] Ieve] 0 f +8 dBm at its 9Ytu) output_ T03 Yn} svntbysvo 7974ffgm& "0 97uTFoT f0900qm0) mo7t 36 b9 ftm}f 9& [Mw $IQ 66- [fp deuo;dt eafwe[$ 2 -1

M463J SUBMASTER MODULE DIRECT Output and MONITOR Qutput Q9j30 3J baretzab 2 ( 6v2ak: 9m: 90 Uan 30ixtm nef226 {K2won970 The DIRECT output appears at_Pins 16/T _ An additiona ] isolated output is provided at pins 17/U . The Iatter output may be 40n04 utilized a $ a metering and/or monitor takeoff _ Care should be taken to restrict loading 0 f this output to 5k ohms or higher.

Master Qutputs and PAN Control {0 31} #03{ emhisn?}70 api: Mt 9 1076 { 0 29b0q 0yiu? p ; ' A73 03n413 A Teft and a right MASTER output are a ] s0 being fed by the 8- 109F output signa ] _ They are routed via PAN switch SW1 and PAN contro] R29 to R32 , fo]owed by two MASTER ASSIGNMENT SWITCHES Sw5 and Sw6 .

The ma ster outputs are connected to the appropriate module output termina )s via summing network resistors to be combined ? with feeds from other submaster mixing channels . [40eetc 70 T6nef2 SG11 9bo0 Qonmo: SV0ta Fw 07 29v0} Auxiliary Qutputs sotno 90 23[909J Sij %8n 90 6 In addition, a SOLO output is ava i Tab ]e via Sw7 to a ] ow selective monitoring 0 f the particular submaster channel Other feeds originating from the 8-109F amp] ifier are supp] ied to the POSTFADE RS_ FB and PA channels oin: b0fqu03 N #9f00 8" PRE Post and KvW & Selector Switches Level Controls PRE/POST selection 0 f the RS , FB and PA channels is facilitated by switches Sw2 Sw3 and SW4 respectively; each switch is fo]lowed by its associated Ievel contro] _ The outputs 0f the Ieve] 90 contro]s are fed to the summing outputs via individua] assignment switches _ Fo]lowing the ass ignment switches .

these outputs are fed to their appropriate mixing buses via summing resistors _ MS'0 O7 09729n0) AC Control Functions #m} 03 #0joQmo? 062 JWofno 81 66 A dc contro] contact closure is provided through operation 0 f Tt either one 0 f the MASTER ASSIGNMENT switches SW5 or Sw6 A Bes1 further contro] contact is ava i Tab ]e on the SOLO switch Sw7 TXM Power Supply Decoupling Lgl_1ez2008 3244- An active power supply decoup] ing network consisting 0 f Q9 through Q14 provides isolation between the module and the +25 at volt supply ra i]s _ Transistors Q13 and Q14 monitor the supply current.

In the event 0 f excessive power supply demands such 60 a $ from component failure or amp] ifier overdrive, the current 00 flowing through Q11 and Q12 wi1] be imited_ 2-2

8-109 AMPLIFIER SERIES

PART DESCRI PTION MFG MFG PART NUMBER R36 R37 R38 . Resistor '4W ·5% 4L<7 4K7 delete Philips "

Zl Z2 Inte9rated Circuit " National " . LF356N

All parts as per 8-109 except as noted below PART DESCRI PTION MFG MFG PART NUMBER C6 Capacitor 4.7 pF Philips 2222-638-09478 Cll " " " " C17 4700 pF Aselco CQ92-MC-472M

R3 Resistor (deleted) R4 " " R5 Resistor '4W 5% 30K Philips R6 " " 18K " R7 470 R8 470 R9 33K R38 620K

All parts as per 8-109 except as noted below a .c

PART

8-109 AMPLIFIER SERIES 8-109F A11 parts as per 8-109 except as noted be ]ow PART DESCRIPIION MFG MFG PART NUMBER c6 C11 Capacitor 4.7 pF Philips 2222-638-09478 R15 Resistor Sw 5% 510 8-109G A11 parts as per 8- 109 except as noted be low PART

8-109 AMPLIFIER SERIES 8-109C 2a62 A11 parts as per 8-109 except as noted below WGL.42ae 4949 PART