SEP. 24. 26PM

NO. 882

audio research

H I G HOE FIN I. TID N'"
5740 GREEN CIAClEORlVE I MINNETONKA. MINNESOTA55343-4424 I PHONE6121939.Q600 FAX6121939.QS04

lS22 PREAMPLIFIER

SCHEMATIC

AND _PARTS LIST

6-23-95

5 POSmON SElECTOR SWITCH

------- I

3\-'-121 3\-1-121

R9 15K

R21 15K

RVI 1001( S GAIN

.k2lviJ~~

,] V5(6) V1(O) R17 lK

~R23 1K

R2. 200

RoAliB : ?

, +D2V

5.0 5.0

I A13 I 15K

R16 '75K

Rl9A/lS, 2UiK I I

'1<25

C9.115V

R27 lMEG

RY5 MUTE

I I:I I 1

TRVI lOOK GIUN

RGAjj SOC I I C49

Rl' '75K

Rl6AUBI

21.5 I

18 I I

R25 lMEG CtO.01

J15 ;)

I.115V

I I I 81

RY. MUTE RELAY.

3\:b] 2 1

iH I I

RYI TAPE MON RELAY

Jl' RY> TAPEMON REUlY

15K R8l -BOY

R16 1K 7 RID lK

~ 5.0 200

-BOV R7AlIsl 7.aK

LS22 PREAMPLIFIER

PAGE 1 OF 3 6-23-95
AUDIO RESEARCH CORPORATION
51.a GAEF-Ii CIRCLE DRIVE
MINNETONKA, MINNESOTA S~~
PROPflfETARY NOTICE.: 11115 ORAWJHG CONTAINS PATIflEO, PATENT APPLlEO FOR, ANDIORClTHEfI CIRCUITRY CONSI[JE~EO pnOPAli;TARY 8'1' AUOIO RESEARCH CORPOFIA TlON AHO IS FURK1Sl-tEO ON A
CONFIOENT"-!. OASIS FOflIOl:lmFICATlON PURPOSES ONLY.

Page 1 of 1

R33 R30 ~ 76.8K

U2 NESSS 3 1

L E I ' D2 R37 lN916 lK R38 3.16K

RY4.5 MUTE RELAYS

R32 76.8K

237 J=)=:;3 I R36~

BALISE RELAYS

SWl BALI R3D lK

MONITOR

SOURCE C16.L.

R47 lK

D6 lN916 R5l

R42 lK

.22~46 2N44ll3 as

R45 5.11K

04 2N_,

D4 lH916

IC181~

RV1,2 SOURCE! MONITOR RELAYS

-~2:W3

MUTE SW3

C21.22 A49 lOOK

LS~~~~Nn~~~~~~ER

;; R41

R44 <,5.nK

t!-C15

+ D6 ~lN915

07 2N4401

I AUDI~7~;;:~;c~~;~RAllON
PROPRIETARY NOnCE: THLS DRAWING CONTAINS PATENTED.
PATEm- APPLIED FOR, ANQQA ornE;A CIRCUITRY CONSIDERED
PROPRIETARY BY AUDIO RF.5EAACI-f COAPORATION AND IS FURNISHED ON A CONFlDENTAJ. BAtS1S, FOR IDENTIFICATION
http://www.arcdb.ws/LS22/ARC_LS22_schematic2.gif

10/14/2007

ZD3,4 LM329

'1N5359A

012 1N916B

C30 2.0

.-240Y

lNSS35A C2S.01

19.6K RSSAIIS 37.SK R61AIIS

R62 332

155.5k

C29.01

208,9 LM:l2D

1N5359A

R71 12.7K

4.99K)

~13 ;l;

lN916B

"'. 1NSS3SA

19.61<

~ R69AIIS
fn """,I'~

---n1T

lN9166

C40 T2.0

C39~ 1,0

+12.GV

C43.22

C42 2.37K

R7B 267

SU<

GRN CHASSIS
POWER SUPPLY PAGE 3 OF 3 6-23-95

5140 GRECN CIRCLE

PROPRIETARY NOTICE: TlilS DRAWINQ CONTAINS PATENITO.
PATENT Af>PUEO "OR, AND/OR OTHER C!I=lCUITRY CONSIDERED
PROPRIETARY ElY AUDIO RESEARCH CORPORAllONAND IS

DRIVE:

MINNETONKA, MN ~-442"

FURNISHED ON

ACONf'lD~AlOASLS

FOR IDENilFlCATJON

PURPOSES ONLY.

SEP. 24.2007 12: 26PM

R41,44,46,48,52

RS3,54,64.85,75,78

A57,68

R58A,68B

R55,70

R62,73

R63,74

RV CONTROLS 1 RY RELAYS 4

45100537

QUAD lCOKQ MOTORIZED GAIN POT.

RYl,2.3

RY4,5

SWITCHES

64101600 64101000
RELAY, LS3 REl.AY,12VREEDS1P 1200 OHM

SWl,2,3

T TRANSFORMERS

24100430 24100730

TOGGLE SWITCH GOlO, SATIN TOGGLE SWITCH SILVER, SATIN

U Ul,2

INTEGRATED CIRCUITS

60012920

XFR. LS22 l2OV.

31004000

NE555N TIMER OPI76GP ADJ. O.P. VLTG. REG.

~UDIO RESE~RCH

763_577_0323

As ot JUN 23 95

PARTS LIST PRODUCT; LS22 NOTES:

Quantity

ARC Part #

VACUl,!M TUBES

ZENER DIODES

32001150

VAC.TUBE 69ZZ RUSSIAN

ZDI.6 ZD2.7

Zos, 10

ZD3.4.8.9

30500300

IN4740A

30504210

31000705 30503500

INS535A (KNOX OWLY)

lM329DZ GREEN

IN5359B

DIFFUSORI Altec Fifteen Apertura Kalibrator Audio Note ANSP Avalon Ascent II BE Yamamura 3 vie triamplific. Chario Iper 3 Harbeth Monitor Harbeth LS5/12 BBC rosew. Infinity 7K I Dahlquist DQ10 Diapason Adamantes Limited Linn Unik Biache Linn Afekt Magneplanar 2.5 Rybon Martin Logan Quest Z ProAc Studio 250 Spendor SP 7/1 Thiel MCS1 + Target Wilson Wat + Puppy V Wilson Benesch PREAMPLIFICATORI Audio Research SP11 Mk II Audio Research SP10 Audio Research LS22 telef. telef. telef. telef. telef. telef. 600,00 telef. telef. telef. telef. telef. telef. telef. telef. telef. telef. telef. telef. telef. telef. telef. telef. Audio Research LS1 Audio Research PH2 Audio Note M2 SIG PH Benz PH PP1 Cello Etude Goldmund SRP2 Mark Levinson 380S Qed C300 Fase Phonodrive 1.0 Spectral DMC12 Spectral DMC20 AMPLI FINALI ED INTEGRATI Alberry PP1 Audio Note P4 Audioanalog Donizetti Audio Research D90 Audio Research V70 Audio Research VT60 Audio Research VT 130 Briston 2B Cello Performance Class Audio VHC Jadis JA200 Klimo Kent Krell FPB 200C telef. telef. telef. telef. telef. telef. telef. 200,00 300,00 telef. telef. telef. telef. telef. telef. telef. telef. telef. telef. telef. telef. telef. telef. telef. Lavardin IF Ref. Lector VFI 70 Leak TL10 Point One + pre Luxman LV-103 Mark Levinson ML333 Mark Levinson 332 Mark Levinson ML 23 Pathos TT Parasound HCA2200 II Syntesis ST1 Wod Spectral DMA150 Spectral DMA 90 telef. 460,00 telef. telef. telef. telef. telef. telef. 1000,00 telef. telef. telef. Sonic Frontiers SFDI MK II WADIA 2000 SINTONIZZATORI McIntosh MR67 McIntosh MR65 McIntosh MR78 telef. telef. telef. telef. telef.
LETTORI CD MECCANICHE CONVERTITORI Accuphase DP55 telef. Antem CD1 1500,00 Arcam Alpha 9 HDCD telef. Einstein CDP demo telef. Jolida JD100 telef. Lector DVD SCM1100 telef. Lector Digicode 2.20 telef. Linn Klassik Movie Sistem telef. Meridian 508/24 telef. Meridian 200 telef. North Star 3 telef. Resolution Audio CD50 telef.
GIRADISCHI TESTINE Brinkmann Balance telef. Cleraudio Reference telef. Merril + Eminent ET2 telef. Pierre Lourn J1 telef. Rega 25 telef. Vyger Indian telef. Benz Glider MC nuove 590,00 Benz Ruby 1394,00 Cardas nuove 30% di sconto telef. Cleraudio Insider Ref. telef. Immutable Music Transfiguration telef. Thorens TD 16O telef. Thorens 125 telef. Filtri di rete Angstrom telef.