M455 — Auxiliary Module

8-109 AMPLIFIER SERIES . The 8-109 series 0 f amp]ifiers are utilized as an interna] component within various WBS series 0 f audi 0 conso ]e modules . Each 8-109 amplifier mounts a$ plug-in assembly onto the mo dule motherboard _ 3 The 8-109 amp]i fier provides an actively balanced output :. with +30 dBm capability It is employed as an output or booster amp]ifier with either balanced or an unbalanced input 7.

^ The fo]lowing specifications apply to the 8-109 series 0 f : amp]ifiers _ Unit Input Gain ' . : 8-109 / : 8-1094 8-109B . . 8-109€ ` . 8-1090 8-109E 8-109F 8-1096 Ba Tanced Unbalanced Ba]anced` Ba ]anced . Unbalanced Ba lanced Ba lanced Ba lanced 15 dB 7 18 39 3 29 29 33 dB 23 dB 3 < 4.

| { ' F . Frequency Response: +0 . 2 dB from 20 Hz to 20 kHz ' . ` Noise: ' . Harmonic Distortion: -108 dBm EIn from 20 Hz to 20 kHz. Less than 0 . 1% THD from 20 Hz to 20 kHz at +30 dBm output (typically Tess than 0 . 02% at mid-band) . 600 ohms or less , balanced or unba lanced_ Source Impedance: Input Impedances ModeIs with balanced input: minimum 8-109A: 30k ohms 8-109D: 4700 ohms 5k ohms 7 ^ e .

, ` Input Levels Depending on gain 0 f particular mode1 6. and system operating Tevels (Refer to . 4^ . ^ J{ gain specifications above . ) ' . > ` 8-109-1-1

MFG MEG_PART_NUMBER 2222-638-09478 c6 C1l Capacitor 4.3 PF Philips R15 Resistor @W 5% 2k4 WBS recommends the us e of replacement parts made by the specified manufacturers for continued opt mum equipment performance 8 - 109-2-5

M455 AUXILIARY MODULE Ga in: 33 dB +0 .5 dB _ Frequency Response: Noise: +0.25 dB from 20 Hz to 20 kHz . 85 dB be]ow +8 dBm nomina] output Teve1 (20 Hz to 20 kHz ) Harmonic Distortion: Less than 0 .25% THD from 20 Hz to 20 kHz at +24 dBm output or Tess Less than 0 .

1% at kHz at +24 dbm output Source Impedances : 600 ohm or Tess , ba lanced Input Impedances : Auxiliary Input: Talkback Input: Meter Input: 600 ohm ba lanced 24 000 ohm , ba lanced _ 7,500 ohm , ba lanced . Input Leve]s : Auxiliary Input: Talkback Input: Meter Input: -10 dBm nomina ] +30 dBm maximum. +8 dBm nomina ] +8 dBm for 0 vu reading .

Output Impedances : 600 ohm , balanced _ Load Impedances 600 ohm , ba Ianced _ Output Leve1 Power Requirements : +8 dBm nomina] +24 dBm maximum . +25 volts dc , 20 mA nomina] , 75 ma maximum. Ambient Temperature: Dimensions : 0 to 60 degrees Celsius _ 1.6" wide X 7" high X 6 . 5" deep .

(41 mm X 178 mm X 165 mm) 1-1

M455_AUXILIARY_MODULE Ga in: 33 dB +0.5 dB _ +0.25 dB from 20 Hz to 20 kHz _ Frequency Response: Noise: 85 dB be ow +8 dBm nomina] output Ieve1 (20 Hz to 20 kHz) Harmonic Distortion: Less than 0.258 THD from 20 Hz to 20 kHz +24 dBm output or less . Less than 0 .1% at 1 kHz at +24 dbm output Source Impedances 600 ohm or less , balanced_ Input Impedances Auxi Kback Inputz Input Ta ] Meter Input 600 ohm, ba Tanced 24,000 ohm, balanced 7,500 ohm, ba anced Input LeveIs: Ayxikback Input: Ta Input Meter Input: Output Impedances: Load Impedances : 10 dBm nominal , +30 dBm maximum.

+8 dBm nomina +8 dBm for vu reading . 600 ohm, ba lanced _ 600 ohm, balanced _ +8 dBm nominal , +24 dBm maximum +25_ volts dc, 20 MA nomina] 75 mA maximum Output LeveI Power Requirements Ambient Temperature Dimens ons to 60 degrees Celsius _ 6 " wide 7" high 165 6m5" deep . {45 MM X 178 mm X 1

""55 AUXI LIARY MODULE

PART DESCRI PTI ON MFG PART NUMBER

ci '" ca CJ C4

CR I OiOd ~ Motorola CR2 CR3 CR4 OS! li gh t Bu l b . 2B Y 387 Mete r , YU Bach - Si llps on " QI Trans istor National 15 4211-2 1(132- 6

PNJ569 Q2 PI0 6 4 5 Q' Te ~as Tl P298 Q' TlP JOB QG National PNJ569

Q' PN3645

:H Pote ntiometer A/ 8 WBS 10 -0 12

RJ to RB Res istor ,",W 51 delete

:~ ~ " RID Rl l, 12 dele te Ph! 11 p s

Rl3 1<2 RI. delet e RIG 22 0 a

'16 220 .c

Rl7 12K ps

Rl8 12K BS

RI9 to W

R26 delet e :// tp ht

'-I

WA~ O -B ECK S YSTEM S LT O

14455 AUX I LIARY MODULE

PART DESCR IPTION 0" HFG PART NUMBER

:~~ Resi ~t or lrll 5S JOO JOO

'" RJO R31,3Z JOO 300 delete RJ3 'J< ." R35 '" 910

'" R37 Trf . Pot Resistor lrW 51 150 Pi her Phil1ps PT lOY 5K

RJ8 delete RJ' 4701' "0 "1 15K 15K 5.' '" "3 5.' 5.' '" "5 5.' Sill) S1l2) Swit ch Sch adow IlBS 11-05 1

SIl3 to SO, delete S.7 Pendar SB23 10 a

WBS r e c ommen ds th e use of reph celne nt part s ma de by t he .c

s pecf ffe d manufact urers fo r c ont in ued op t fmum e quipme nt ps

per forma nce . BS W :// tp ht

3-'

W AR C - B E CK SYS T EMS LTC ,

8- 109 AMPLI FI ER SERIES

a .c ps BS W :// tp ht

8 - 109

W A Fl O - B E CI< S VSTEMS LTD .

8- 10 9 AMPL IFI ER SERI ES

The 8-109 ser ies o f amQllfie..... are utili zed as an inte"" a l componen t w l l h in var iou s was ser ie s of aud io console modules . Each 8-109 amplifier moun l s as a plug _ in assembly onto the modu le molhe~rd.

The 8-109 ampl ifier prov ides an actively balanced ou tp UI with a .JO d Bm cap ability. I I i s emp loyed as an outpu l Or e b oo s le r amplifier w 'th ei lher a balanced o r an unbalanced i npu t.

The follow in g s peci f iclH io ns a pp ly to I h e 8-1 09 se r ies of a mp li f ie rs .

8 - 109 Ba lanced 15 ea 8 _I09A Unbalanced r ee 8_I09B Balanced 18 dB 8_ 109C Balanced 39 dB 8_1090 Unba la tlced 29 dB e-rose Balanced 2 9 dB 8- I09F Balanced 33 d B 8 - 10% Balanced 23 dB F req ue n c y Re s p on s e : . ;- 0 . 2 d B from 20 Hz to 20 kH z.

- 108 d Bm E I N from 20 Hz 10 20 k Hz .

Hal'mOnk Oi st or l ion: Le s s than 0 .1 1 THO from 20 Hz to 20 k Hz a l .JO dBm outpUI

M455 AUXILIARY MODULE PART DESCRIPTIOn MFG MFG PART NUMBER R27 Resistor #W 5 % 300 R28 300 R29 300 R30 300 R31,32 delete Philips R33 R34 R35 R36 R37 910 8K2 910 Trim Pot Resistor AW 5 % 150 Piher Philips PT 10V 5K R38 R39 R40 R4 1 R42 delete 470k 15K 15k 5 , 6 R43 R44 R45 5 5 _ 6 5 6 SW1) SW2 Switch Schadow WBS 11-051 SW3 to SW6 delete SW7 Pendar SB2310 WBS recommends the use of replacement parts ma de by the specified manufacturers for continued optimum equipment performance _ 3-2

8-109 AMPLIFIER SERIES 8-109F A11 parts as per 8-109 except as noted be low PART