Audio technica 90 owners manual

Page 1

audio-technicé

DUAL MAGNET PHONOGRAPH CARTRIDGES

INTRODUCTION

Vour new Audio-Tachnica cartridp it a significant achievement in
mcitlon mwuiacturinn. Complatelv hand assembled. tolerances are
held to in thouundths 0' an inch. Audio-Technice hes we ' red
in matron transducers for over a decade, building an intarnatiortal
reputation tor accuracy and unitormity. The Dual Magnet seriet oi
phono artridoes is the latest refinement at this tradition ot cralts-
rnentnip tntt odvanad design.

PRELIMINARY INSTALLATION

oatore mounting the urtridge, the stylut ensemblv should be ra-
moved rot alflkecpinn. Hold the cartridge in one hand, creep the
allelic nndll flouting with thumb and forefinger, and pull directly
away iron the cartridge. The stylus assembly comes away at a rlight
rearward ande. ll indlcnted bv the itrdw in Figure I. Place the stvllfl
assembly out of harm't way until tnttalletiorl is completed.

Using the mounting hardware supvlied either with the carttldw or
with the turntable. mount the ccrtridoe according to the recommendav
tiarrl oi the turntable manullcturer. Hardware should be tightened
down Slimflv, ID Ihlt the CUM Dmition does not cheap. but wold
exassive tore! which mlv Strip Dilltil: threads or warn tklicate parts
out or position. Alter the urtrtdge it mounted, replace the ttylus
assembly briefly. The stylus assembly should dick rnto plau when
tully seated on the cartridge. Cheek visually to make :ure thu there is
no mmlniul tnterferenu with mounting hlrdwars. Again remove
the ttvlue assembly for teiekeeoing llrltil electrical connectlons are
completed.

r5, . F
/ \ i
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Am ATQI ATM AT93 ATSSE

ELECTRICAL CONNECTIONS

Four terminals are provided at the rear of the cartridge - an out-
put and ground connection tor each stereo channel. For proper per-
lorrrlanoe of your tystern, the correct wiring must be carried through
to the lrnplitier inputs. Connect the mrntable wiring to the at idm.
chewing the lead designation furnkhed with the turntable. The

. certrldol pin. are color coded. lfllnv a wellamotisned Itisndlrd in the
turntable rndultry, DO NOT SOLDEP TO THE CARTRIDGE
TERMINALS. USE SLIP-ON LUGS TO WHICH TONE ARM WIRES
HAVE BEEN SOLDERED BEFORE PLACING ON CARTRIDGE
TERMINALS, Hlat applied directly to the cartridge tetmirlils will
damage the internu cartridge cortnactiorlt.

Lllt
orma
IBuI/Ilackl

For monaurel (so-ration, the lelt end
nant riunet terminal: thnuld a.
connected to the mortaurll signal load.
and the leltand rloht around terminals
Ihould be connected to the around lend.
With these connections, vertical outout
from the cartridp is cancelled. thut

. . . . _ Wr'llfilound
reductno record noise Whld ll pnmartly .60". mm OVIWI
in the vertical direction. WI

Lllt Duvut
[Mthl

Fig.1

FINAL INSTALLATION

HI-Initl stylus anembly. Following the vrooedure recommended
by thl turntable or tone arm menutocturer. unlullv set tracking
toroe within the appropriate ramp thown In the specification table.
This Is o crltlul adiustmnnt. linfl tracking force hldter or lower than
rammendeo. wlll result in increased distortion and decreased record
It Similarly. the tone arms adiuttments. ll arty, tor stylus mourn-nu
end antlalutino must be at properly it maxlrtlum benefit is to be
obtained trom your artriage,

Alter all tone arm adiuetments hove been made, the ttylua may
remain inttatled in the untidy. However, the plum: itviu! word
should be used to protect walntt acdthntal damage, at at any time
when the turntable it not in use.

REPLACEMENT STYLI

Audio-Tldlnlca grain-oriented diamond ttyli ere caraItu selected
and polished for minimum wear to themselves and to your records.
However, alter an extended period oi play, oven the finest diamond
atvltu become: worn. For this reason. it it best to have the ttylut
inspected annually, or whenever it appears that wear or damage may
be a problem. The dealer Irom Mom you Wrcheied this cartridge
is equipped and competent to intoect and evaluate the stylus.

Should a repleorrnent nylut I: required, accept only a pnulne
Audio-Tedmica replacement stylus. Only perruine Audio-Teohniea
styli with the mnuine A-T circle monogram, as on your original stylus,
will provide the some level of performance found In the original mt-
tridp stylus,

FULL ONE-VEA}! WARRANTV

Audio-Tachrtica cartridw and ttyli rte war-titted tor one yeer Irorn am at purchase
to be lrea ol detect: in nuteritlt and worktrumtlian event or my delectmrodvet will
be lepaired without charge or. at our option, reolxtd with a new product w- my
extludu normal tlylur west or raritrre due to improper use with content. r a mist.
For instruction! on return lot revitr or Mio-Tecnrrlc: products, trluta contact your
local Audio-Tethntu retlllfl

CELLULES PHONOLECTRICES A DOUBLE AIMANT
IDUAL MAGNET)

INTRODUCTION

Cam nauvelle mllule Audio-Tedrnica marque line ltlpe dart! It!
domaine de la fabrication de precision. Entierement month a la main,
tes tolerances sont de l'otdre do melques centiernes de millimetre.
DBDuiI Dlut do dix ens, les ttlmdllcteurl GE precliion sum in sped-lit!
dAudio-Techrtice out a ainti acquis une reputation international: pour
la precision et la abilite de ser produrts. Let cellules a double almant
reorésentent le reltirrement le glut recent de eette tradition dartitlsrtat
et de conception davanlwrde,

MISE EN PLACE DE LA CELLULE
OPERATIONS PRELIMINAIRES

Aunt da rrlattre ert place la allule. anlevlr I'ensembte de ttyle
pour éviter ou'il rte wit lbllné. Mainunir II oellule dtme main el
titer dl I'Uutre in! II boltihr du style comme indiqué i la ligure I.
Wm! lemmble de xtvle I I'Ibri lnqu'.u mm! de son montlw,

A l'lida det pineal de fixation lourniu wit Mt: Ia oallula suit avec
la tabla de lecture. montar la oalltste err sulvant let indications dam-liar
dlnl le manual accomoaylant Ia table de lecture. Lat Dillon de tixation
devront ltra eerreax Idflrement. uulament pour due la petition de la
cellula rte many pat, car aerrer tron ritotra dernouster Ies tiletenes
en plastioues Mr de aueser les pitch les pitta delicatet. Una loit que
la oellule ett rnise an place. reotacer Iensemole do style pour t'assurer
due les pieces de titration rte fluent Bl. ILe bloc de ttyla doit sen-
clendlar stout la callulel. Enlever I nouvaau Ianeemole do styla at la
umttre i l'abri.

lwal

ATS 3 ATSSE

AT90 ATQI A1945

CONNEXIONS ELECTRIOUES

A l'arriere de atte celluie se trowent quatre bornes- une borne

de tortia et une borne de terre pour cheque canal. Pour due no tystErne
ionnionna eorrecternent, it taut ellectuat oortecternent let branche-
mant: lutou'arrx entrees de l'mpiiticateur. Relier les tilt de In table
do lecture i la oellule err ohsarvant les instructions concernant let tilt
conducteun uni figment dart: le manuel de la treble 6! lecture. L85
couleurs de! time: de II oellule correxpmlbnt 6 un code largement
err utap darts l'industrie de l'eudio. NE PAS SOUDER SUR LES
BORNES DE LA CELLULE. SE SERVIR DE COSSES DE BRANv
CHEMENT SUR LESOUELLES AURONT ETE SOUDES LES FILS
DU ERAS DE LECTURE AVANT OU'ILS NE SOIENT BRANCHES
SUR LES BOHNES. En all-t, apsliquar tirectementda II didauruux
borne: de la cellule endommagera set connexion! intirieures.
Pour lute utilitation en mono, let oomat
de signal droita et gimme dewnnt etre
relieet lu conducteur de tigrtal mono
er Ies hornet de terre droite et gauche
dewont etre relKes :u conducteur oe
mine i la tents. Aver: as connexion.
Ies sortie: Vettiulln de la cellule lot
xuoorimees, ca out redult let bruit: Mm Bruise t..."
9.15" D'ovlntnt pllnlunflemerlt do I:
vertirale.

OPERATIONS FINALES

fiemonter l'eneemble de ltvle. Suivre. your (2 hire, la pmtfidm
recnmrnenoee par le lebrieartt de la table ou du bras tie lecture, mig-
neuserrrent renter la toroe d'apoui i l'una des valeuu indiquees darts
let cemeterittiquet cl-iolntat. (e reyaoe est important, ne one tegler
err decl on In deli des valeun indiouees ti l'on vellt lviler In! distor-
tions et prolonwr la dude da servim des tfisqlms. De meme. il est
important do renter correcternent le surplornb du ttyla at Ia compen-
sation da pouttea laflrale du bras delecture lantithingl pour obtenrr
on cette oellula lat rnallleurt result-ts poulblas.

Mna amen I-lu

sort-r Gulch-
tunnel

rim 1
tons. prot- tnupl

Une tots eilectues tout let red-oer du bras dc lecture. Iaisser le
style at." In oellula. Dependant, qulnd on n'utillte Pl! ll table do