Technics SL-1900 (MC) User manual

@Technics
Direct
Drive
Automatic
Turntable
System
sL-rlgoo
OPERATING
INSTRUCTIONS
Before
operating
this
set,
please
read
these
instructions
completely.

@ Phono cables @Output
terminals
Parts
identification
It @AC
power
prus @Ground
wire
O Hinge
€)
Turntable
mat
O Turntable Platter
@Motorshaft
(CentersPindle)
@
Strobe
mark
OStrobe
illuminator/
pilot
O Strobe
dots
@
Speed
selector
we want
tothank
you
for
selecting
the
sL-1900,
Direct
Drive
Automatic
Turntable
system'
For
optimum
performance,
werecommend
that
you
read
these
instructions
carefully'
cautiont Never
connectthe Ac power plug before
the assembly
has been
completed'
Assembly
andset-up
The operating
instructions
are commonlyapplicable
to sets
with cartridge
and withoutcartridge,
so that please
refer
to the
followingnotes
for further information.
Since
the overhang
gauge isfurnished
to sets without
cartridge,
refer
to the item concerning
cartridgeinstallation
for correct
mounting.
Forsetswithout
cartridge,
the cartridge
section
ofthe specifica-
tions may be neglected'
@Balanceweight
€D
Stylus pressurering
@ Anti-skating control knob
@
Arm rest
@
Cueing lever
(D
Armclamp
@Memo-repeat
(9
Tubular
arm
@
Record
size
selector
nut
@Start/stop
lever
(D
Headshell/cartridge
@Turntable base
€l Pitch control knobs
500
hours),
sodo not
apply
too much
oil, normore
frequently
than necessary.
Never
use
any
other
type
of oil'
€)lnstallation
of the turntable
platter
1. Place
the
turntable
platter
on
the
motor
shaft
(centerspindle)'
2. Place
the
turntable
maton
the platter'
Note:
1)Therotor
isconnected
to the reverse
surface
of
theturn-
table
platter.(The
magnet
of
the motor
isattached
to the
turntable
platter.)
To
maintain
optimum
performanceas
soecified,
extra
care
should
betaken
to prevent
adhesion
of
dust
or iron
filings
to
themagnet
and
not
to damage
the
magnet
bY
droPPing
it'
2) Donot remove
the
three
screws
for securing
the magnet'
(See
Fig.
3.)
Should
the position
ol thefixed
magnet
be
altered
by
loosening
the securing
screws,
the rated
performanceof
the unit
can not
beguaranteed.
@lnstallation
of the headshell (SeeFig'a')
Insert
the plug
portion
of
the head
shellinto
thetront
end
of
thetubular
arm,
and
turn
the
locking
nutclockwise
(in
the
direction
shown
by
the arrow
"A"), with the head
shell
held
horizontally
to secure
JirmlY.
QCheck the Paris.
Turntable
unit
. ........
Turntable
Platter
.....
Turntable
mat
.....
..
Dustcover
45
r.p.m.
adaptor
Special
oi1.
.......
Balance
weight
Head
shell/cartridge
... ...
(Overhang
gauge
....1
...1
....1
...1
1
1
1
1
..1)
gApply two or three drops of oil to the molor shalt usingthe
furnished
oil container'
(See
Fig.2.)
Although
the
unit
hasbeen
lubricated
before
shipping
from
the
{actory,
apply
a few drops
ofoil
to the motor
sha{t
for assur-
ance.
After
that,
application
of
two or three
drops
o{oil once
every
2000
hours'
operation
or so is sufiicient'
The
time in-
terval
is much.
longer
than
that
of
theformer
typemotors
(200-

OAdjustmentsol the horizontal
"0" balanceand the slylus pressure
1. Insertthe
balance
weight
ontotherear
shaft
of
thetonearm.
(See
Figs.
5.)
2. Remove
the stylus
cover,
ifyour
cartridge
hasone.
3. Release
thearm
clamp
(Fig.
6)andlift
the
tonearm
from
thearm rest
to free
the
tonearm.
Nole:
lf
thetonearm
isurged
to returnto thearm rest
whenthe
tonearm
is held
in a free
statein Fig.7,
rotatethe
turntable
platter
clockwiseabout
10times.
This
is necessary
because
in rare
casesthe automatic
mechanism
mayhave
engaged
the
tonearm
gear
or moved
outof its normal
position
during
transDortation.
4, Turnthe
entire
balance
weight
clockwise
(indicated
bythe
arrow
"A") or countrerclockwise
(indicated
bythe
arrow
,,B,')
untilthetonearm
is
approximately
balancedhorizontally.
(See
Figs.
7 and
8.)
5. After
thetonearm
is
horizontally
balanced,temporarily
fixthe
tonearm
bythe
armclamp. (See
Fig.
9.)
Hold
the
balanceweight
stationary
withfingers
asshownin
Fig.
I androtate
only
the
stylus
pressure
ring
to bring
the
numeral
"0" of
the
ring
intoalignment
withthe centerline
on
the
tonearmrear
shaft.
(The
adjustment
of
the horizontal
balanceisnow
completed.)
Nole:
.1)
During
the
adjustment
ofthehorizontal
balance,
be
sure
that
the stylustip ofthe cartridge
doesnot
contact
the
turntable
mat
orturntable
base.
2) Ensurethat
the anti-skating
knob
isat ',0'.'
position.
(See
Fig.
9.)
There
arecaseswhere
the
tonearm
may
swayor flow
slightly
atthe
position
of
"0" due
tothe
highly
sensitive
rotational
part
of
the
tonearm,
but
this sideforce
is
trivial
andpresents
no inconvenience.
3) Ensure thatthe
cueinglever
is
intheloweredposition
as
shownin
Fig.
6.
4) Make
certainthatthe
speed
selector
isinthe
,,.,'
position,
the
balance
adjustment
is
easilymade
astheturntable
platter
remains
stationary.
6. After
adjusting
thehorizontal
balance,
turnthe
balance
weight
clockwise
in
the
direction
ofthe
arrow
and
alignthe
correct
stylus
pressure(.1.75
g
). (See
Fig.
10.)
Nole:
1) Asthe stylus pressure
ring
rotates
together
withthe ba_
lance
weight,
proper
stylus
pressure
can beselected
bV
directly
reading
the graduated
ring.
2) In cases
where the recording
levelof a recordis ex-
tremely
high
or the unitis usedin a room
having
low
temperature
or records are ptayed in places where
vibrations
are liable
to be transmitted
to theturntable
system,
"distortion"
of sound
or,,skipping"
of stylus
may
take
place.
In
such
cases,
setto
,,2
g" for
optimum
perf
ormance.
@Anti-skatingtorce control
Setthe anti-skating
control
knobto the
samevalue
as
that
set
for
stylus
pressure.
(See
Fig.
11.)
Olnstatlation
ol the dust cover (SeeFig.12.)
Place
the
dust
coverinto
position
fromdirecily
above,
holdingit
at both
sides.Fordetaching
the dustcover,be certaintirstto
raise
itas illustrated
before
removal.

Arm clamp
Tonarm-Arretierklammer
Dispositif de fixation du bras
Armklem
Ldrskldmma
fcirtonarm
Grapa del brazo
Note:
Opening
or closing
ofthedust
coverduring
playing
should
be
made
as
gently
as
possible,
sincethis
may
notonlycause
harmfulturntable
vibrations,butalso
resultinskipping
ofthe
styl
us.
@Placement
1.Use
the
unit
ina stable
and
horizontal
position,where
there
is
littleor no
vibration.
2. Use
theunit
as
far away
fromthe
speakers
aspossibleand
isolate
itfromsound
radiation
from
ihem.
3. Donot
place
theunit
where
itis exposed
todirect
sun,dust,
moistureor heat.
4. Keep
it in a well-ventilated
place.
@Connect
the AC PowerPlug.
Connectthe
ACpowerplug
to
theACsocket.
Makesure
that
theAClinevoltage
selector
iscorrect
to your
local
voltage
beforeconnecting
theACpower
plug.
Never
connect
to a DCsocket.
lfthe
pre-selected
voltage
isdifferent
from
your
local
voltage,
turnthe
AC line voltageselector
with
a screwdriver
to yourlocal
voltage.
(See
Fig.13.)
@ Connect
the outputlerminals.
Output
lerminals Amplifier
or Receiver
Howto play
Manual
play
OSet tnespeed
selector
to the desired record speed.
(SeeFig.
'
@ Release
thearm clamp.
O Liftthe cueinglever as indicatedby the arrow. (SeeFig. 15.)
@ Movethe tonearmover the record and lhen lower the cueing
lever.The lonearm will descendslowly onto lhe record and
play
will begin.
6When tinishedplaying,
the tonearmwill automatically
return
lo the arm rest (auto-return)with the power shutoff' and the
turntable
platter
will slop rolation'
(The
turntable
platter
will rotate
for a short timedue
to its
inertia.
)
Note:
1) When
the
tonearm
is moved
towards
the record,
the powel
is
turnedon
and
the
turntable
willstart
rotating.
lfthespeed
selector
is
positioned
at
"'", the turntable
wi
notrotate,
although
the
strobe
illuminator
is
lit.
2) lfyou play
a 45
r.p.m.
record
with a large
center
hole,use
the
iurnished
adaptor
on
thecenter
spindle.
Automatic
play
QSet the speedselector
in the same manner
as in manualplay
and releasethe arm clamp.
@Set the record size selector to the diameter of the record (7"
[17
cm], 10" [25
cm], or 12" [30
cm])you wish to play.
(SeeFig.
16.)
L (White)
R (Red) -----------*
trl Channel
+E Channel
E (SPade
lus) .-* GTID
Note:
Besure
to connect
the
ground
terminal
tothe
amplif
ier
or
receiver.
lf
this connection
is notmadeor is loose,
a power
source
"HUM"
will
result.

Hori40ntallybalancedstate
Waagrecht balancierterZustand
Condition d'6quilibrage horizontal
Horisontaal gebalanceerde
staat
Horisontellt balanserat lage
Estado de equilibrio horizontal
Styluss pressure ring "0"
Auflagedruck-Einsteltring"0"
Bague de pression d'appui
vertical en position "0"
Instelring
voor de naalddruk
,,0',
Niltrycksring "0"
Anillode la presi6n
de laaguja
en ,,0"
Anti-skating control knob "0"
Antiskating-Einsteller"0"
Bague de reglageanti-patinage
en position "0"
Dwarsdruk-compensatieknop"0"
Anti-skating kontroll "0"
Perillade antideslizaci6nen "0"
@Pull
thestart/stop
lever.
The
tonearmwill
moveaccording
tothesize
oftherecord
set,
andstart
playing
(Automatic
start).
@When
playing
hasfinished,
thetonearmwill return
to its rest
andthe unitwill shul olf automatically.
Repeat
play usingthe "memo-repeat" knob
Thisunitis
equipped
witha convenient
mechanism
of
the
"memo-repeat."
Youcanplay the record
repeatedlyfrom
oneto sixtimes
or
continuously
bysettingthis
knobto the desired
posiiion.
Setthe "memo-repeat" knobto the desirednumberyou wish
to play.
(See
Fig.17.)
"R" position
enables
you to repeat
playing
continuously.
Note:
The
"memo-repeat"
knobmay
beturned
eitherclockwise
orcounterclockwisewithout
anyinconveniences,
butcare
should
betakennotto touchit whenthetonearm
is in movements
for
automaticstart,automatic
return,
etc.
Howto suspend
playing
Pushlhe start/stoplever.
Thetonearmwill automatically
return
to the arm rest,with the
power sourceshutoff.
Ofcourse,the unitwill automatically
shutoffeven when the
tonearmis manuallyreturned
to its arm rest
directly.
Fortemporarysuspension
ol playing,
raisethe cueinglever,
and the stylus
tip ol the cartridge
will be raisedlrom lhe record.
Note:
'1) Incase
where
the "memo-repeat"
knob
is located
in position
otherthan
"0", playing
willbe
repeated
bythe
number
of
times
set,andtherefore,
besure
to keepthe ,,memo_repeat',
knob
located
atthe "0" oosition.
2) Records
having
dimensions
other
than 17,
25and
30cm (7",
10"
and12")
should
be
played
by
"Manual,'
pray.

Stylus
pressure
ring
Auflagedruck-Einstellring
Bague
depression
d'appui
verticale
enPosition
Instelring
voordenaalddruk
Niltrycksring
Anillo
de
la
presion
de
laaguia
Adiustments
QAdiustment
of tlrearm lift
height (See
Figs.
18
and 19.)
Thearm
liftheight
(distance
between
thestylus
tipand
record
surface
whencueing
leveris raised)
hasbeen
ad-
justed
at
thefactorybeforeshipping
to approximately
5
to
10mm (3/16"
Io 25/64").
Forusingdifferent
cartridgesavailableon
the
marketor when
further adjustmentsare particularly
necessary,
move the
tonearm toward the motor shaft (center
spindle),
with the
stylus
cover
put
on,
andthen
push
down
manuallyon
thearm
lift bar to expose
the adjustment
screw.
Turn the screwfor
ad
justment.
Clockwise
rotation
-distance between
the recordandstylus
tip is reduced.
Counterclockwise
rotation
-distance between
the recordand
stvlus
tip increases.
Note:
Asthe adjustingscrew
hasa hexagon
head,be sure
to make
theadjustment
whiledepressing
thearm
lijt.
gAdiustments lor automaticstartand automatic
returnpositions
(See
Fig.
20.)
Should
the
tonearmnot
f
unction
correctly,
make
adjustments
according
tothe
following
procedures.
Adjustment
for aulomatic start
position
(Remove
the rubbercap.
)
Incases
where
thestylustip descends
outsideofthe record
- Move
clockwise.
Incases
wherethestylustip descendsonto
halfwayof
a re-
cordedoiece
-Move counterclockwise.
Adjustment
for automatic
returnposition
(Remove
theturntablemat.)
Incaseswherethetonearm
tends
to returnbetore
the playing
has
finished
- Move
clockwise.
Incases
wherethetonearm
failsto return
afterthe last
groove
ofthe record
- Move
counterclockwise.
@Speedadjustment
(withpitch conlrol knobs)
(SeeFigs.
21 and
22.)
Strobe
dots are set on the rim ofthe turntableplatteraccord-
ingto the power
frequency
andthe number
of revolutions
of
the records,
Makeadiustment,
referring
to strobedot indica-
tion.
(See
Fig.21.)
45rpm
33-1/3
rpm 50Hz
60Hz
1.
j
Setthe soeedselector
to the numberof revolutionsto be
adJusted.
(See
Fig.
22.)
Releasethearmclamp
andraise
thecueing
lever.
Movethetonearm
to a sliqhtextent
towardstheturntable
Diatter.
The
strobe
illuminator/pilot
lampwillbe
litforilluminating
the strobedots.
Whileturningthe
pitch
controlknobs
either
to " +"
sideor " -" side,ad.iust
to such
an extentthatthe strobe
dotsof
theturntable
look
as if
they werestationary.

S6lecteurde tension d'alimentationC.A.
Netstroomspann ingskiezer
Ndtspdnning svdljare
Selector de voltage paracorriente alterna
The
state
underwhich
the
strobe
dots
seem
to be
stationary
represents
the correct
speed.
60Hz,
33-1/3
rpm
dots seemto be stationary.
" *" direction
This increases
the speed oJ
the turntable
rotation,
and the
strobe
dot pattern seems to flow in the same direction
as
tho irrrnt.hl6 ^l,tt6r
" -" direction
This
decreases
the
speedofthe
turntablerotation,
resulting
In
a state
opposrteto
thatinthe '+" direction.
Nole:
Strobe dot patlern
The
strobe
illuminator./pilot
lamp
of
thrs
unit
employsthe
commercrally
avaiiable
power source.The frequency
ol such
power source,
when actuallymeasured,
has a fluctuation
ol
about
0.2o,'0.As such a fluctuation
of the power source affects
the strobe illuminator,
the strobe
dot pattern
also seems to
tluctuate
to a certain
extent.But
the unit rs
not affected
by the
Iiuctuations
o{the power source,since
a D.C.motor i.s
em
p
I
oyed.
Maintenance
QExtracare
should
betakenin handling
the
turntable
platter.
The
turntable
platter
has
a rotor
(the
magnet
ofthemotor)
directly
connected
to it.
Therefore,
the
turntable
platter
should
not
beremoved
from
the
moto'r
shaftunnecessarily,
since
adhesion
of
dustor iron
{ilings
ontothe
magnetresults
in
deterioratron
of
the
performance.
Shoulditbecome
necessary
to remove
iheturntable
platter,
besureto
pullthe
AC
power
plug
outofthe
socket.
Owipe the dustcover and turntablebasewith a soft,dry cloth.
Never
useany
cleaners
containing
alcohol,benzine
or
thin-
ner.
Useofa chemical
dustcloth
andthe like
shouldalso
be
avoided.
Be
sure
that
the
dustcoveris
not
exposed
to in-
secticide
spray,as
cracks
or blursmay
result
To
remove
stubbornfinger
prints
or grease
spots,
detachthe
dust
cover
ordisconnect
the
AC
power
plug
anduse
a soft
cloth
dampedwith
a mild
soap
andwater
solution.
@Dust
and
dirtadhering
to the stylustipor the record
should
be carefullyremoved.
lf
usedwith
dustand
dirt
acihering
to
the
stylustip,the
stylus
will
not{it
intothe
sound
groove
ofthe reccrd
correctty.
This
may
not
onlyresult
inthe
deterioration
of
tone
quality,
but
causeunduewear
of
therecord
andthe
stylus
tipitself.
Usea brush
having
softtips,
movingitfrom
the
base
to
the
tip
o{
the
stylus
carefullyfor
removing
dustand
dirt.
Therecord
should
also
becarefullv
wiped
with
a record
cleaner
of
high
qualrty.

Cueing
lever
5to 10
mm(3/16"
to 25164"1 Lifthebel
5 bis 10mm Levierderelevage
5 d 10
mm Armlifthefboom
5-10mm TonarmslyftsPak
5tiff10
mm(3/16"
lill 25164"1 Palanca
de
de5 a 10mm colocaci6n
@Before
detaching
or attaching
thehead
shell,
be sure
to turn
the
volume
control
fortheamplifier
or receiverto "0" position'
or to turnolf the Power.
Detaching
or attaching
of
the
headshell.
with
thevolume
con-
trol
turned
high,
maynotonly
resultin
unpleasant
noises,
but
cause
damage
tothespeakers.
@Wipe
thehead
shell
terminals
fromtime
totime.
(See
Fig'
23')
Adhesion
of
dust
and
drrtto
theheadshellterminals
may
grve
rise
to contact
faults,
thus
resulting
in increased
"hum" noise
or non-transfer
of sound
to the speakers.
Use
a-softdry cloth
or
the
likelor
wiping
thehead
shellterminals.
@Wnen
you use other
head
shells'
becareful
about
the
head
shell
configuration.
(See
Fig 24')
When
othei
types
of head
shells
are
employed
the handle
oortion
of
the head
shell
maystrike
against
the inner
upper
surfaceofthedustcoverduringtheautomaticstartorautomatic
return
movements
ol the
tonearm.
Insuch
a case,
we recom-
mend
to play
with
thedust
cover
open.
@Replacement
ol the stylus (SeeFig'
25
)
Remove
the head
shell/cartridge
from
thetubular
arm Hold
thestylus
assembly
between
fingers
and
withdraw
it
slantwise
asshown
in Fig.25.
Align
the
newstylus
assembly
with
the
square
opening
of
the
cartridge
main
body
and
push
itinto
the
opening
positively
as
faras
it
will
go.
The
unit
isJurnished
with
adiamond
stylus.
The
liie
of
thestylus
differs
depending
on
the
conditions
for use,
but
itisrecommended
to replace
thestylus
at
the
firstsign
of
wear,
regarding
about
500
hours'
useasan
approximate
standard.
The replacement
stylusfor the unit is the EPS-270ED'
@ Repfacement
of the cartridge. (SeeFigs'26and27
')
1.
Connect
the
lead
wiresto
thecartridge
terminals.
White
(L +).
Blue
(L - )
Red
(R
+)
Green
(R -)
.........LeJt
channel
+
.........Left
channel
-
.........Ri9ht
channel+
.........Ri9ht
channel
-
2.
Install
the cartridge
to the spacer,and tighten
it with
screws
provided
with
the cartridge.
(SeeFig.26.)
Headshell
Lead wire
Shell spacer
Nut Terminal
Cartridge

Tonarmaufsetzpunkt-Justierschraube
Visde r6glage
du d6marrage
du brasdelecture
Regelschroef
voorhet
punt,
waar
denaald
op deplaat
komt
Justerskruv
fdr tonarmens
start
Tornillito
deaiuste@@@razo sonoro
Regelschroef
voorhet
punt,
waar
dearm
terugzwenkt
Justerskruv
f6rtonarmens
atergiing
Tornillito
deajuste
delretorno
del
brazo
sonoro
Overhang adjustment screw
52mm(2-3164"1
3.Loosen
overhang
adjustment
screw
andmove
the
cartridge
forward
or backward
until
thedistance
between
thestylus
tip and the plug becomes
52
mm (2-g/64")
as shown in
Fig.27.
4.
Tighten
adjustment
screw
without
moving
the
cartridge:
Features
Turntable
section
IAutomatic turntable
systemwith ,,memo-repeat"
which enables
you lo enjoy repeated
playfrom 1 to 6 times and continuously
repeated
play.
Theunit
isequipped
with"memo-repeat"
mechanism
peculiar
to Technics
which
enables
you
to enjoy
repeated
play
in addition
to the manual play,
auto-start,
auto-return
und auto-stoo.
Additionally,
inthe auto{unction,
excellent
mechanism,
design_
ing
and
craftmanship
such
asout-sert
molding,
etc.
are
con_
centrated
and in cooperation
with a greatdeal of know-how
obtained
through
actual
production
of auto-mechanism
during
the
past
many
years,
the quiet
andhighly
reliable
turntable
system
has been oresented.
!High mass heavy weightclass
designplacing particuaar
emphasis
on acouslic quality.
There
are unexpectedly
frequent
demands
for a compact
and
high
performance
turntable.
In
this
unit,
unnecessary
space
has
been
minimized
asfar as possible,
while
the heavy
weight
base
produced
through
proper
polymerization
reaction
of inorganic
matter,
resin
and
glass
fibers
is
employed
for
theunit
base
which
actseffectively
for the prevention
against
external vibrations.
Moreover,
bythe employment
ofthe isolator
inwhich
visco_
elastic
material
superior
in external
vibration
cur_off
and
absorb_
ing
properties
is
combined
withmetallic
spring,
a marked
im_
provement
has beenachieved
in the howlingpr6vention
effect.
I Molor construclion peculiarto Technics
in whichthe rotor ot
the motor is integrally
connected
to the turntable platter.
In
Technics
turntable
systemswe tookthe lead
in
theworld
by
putting
theDirect
Drive
system
onthe market
with
a marked
improvement
inthe
performance
of turntables.
Since
then,
we have
developed
numerous
turntables
of high
performance,
lurnishi.ng
new
toprcs
ofconversation
each
time.
One
of these
achievements
is
the motor
construction
of
this
unit,
unique
andsingular
in
theworld,
inwhich
therotor
of
the
motor
is
directly
connected
tothe
turntable
olatter.

Large finger lift
GroBerGriff
Souleveur manuel d grand d6gagement
Groot uitsteeksel
Stor fingerlyft
Gancho grande parael dedo
Dust cover
Staubabdeckung
Couvercle anti-poussidres
Stofkap
Plexiglashuv
Tapa de protecci6n contra el polvo
I Automatic
turntablesystemequipped
with " memo-repeat"
tunctioncapable
of repeatedly
playinga recordfrom one to six
timesor continuously
playing
a recordrepealedly.
Theunit
isequipped
witha convenient
"memo-repeat"
function,
and
you
canenjoy
manual
playing;
automatic
start,
automatlc
return,automatic
stop,
and in addition,
repeatedly
playing
a
record
fromoneto six
timesor continuously
playing
a record
repeated
I
y.
lDependable one chip
tC (SeeFig' 28.)
Firstin development
of
the lC(AN630)
of
the Back
Electromotive
ForceFrequency
Generator
system.
The
motordrive
unit,
control
unit
andvarious
additional
func-
tionsare integrated
into
the B.FG.system
which
utilizes
the
Back
Electromotive
Force
Frequency
generated
in
thedrive
winding
oftheDirect
DriveMotor.
Consequently,
superior
temperature,
dritt
and
transientchara-
cteristics
areobtained
improvingthe
overall
reliabilityot
the
turntable
system.
Theone
chiplC
(AN630)
employed
inthisunit
hasa totalof321
elements
such
as
transistors,diodes,
resistors
andcapacitors
consolidated
in a silicon
substrateapproximately
3x2.7 mm2
in
size.
We
take
pride
in
the
factthattheone
chiplC(AN630)
represents
the
world's largest
degreeof integrationas a bipolar
linear
lC.
' BackElectromotive
ForceFrequencyGenerator
IHiJidelity perlormancewith rumble (signal
to noise ratio)of
-73 dB (D1N45539B),wow and flutter
of 0.03%
(W'R'M.S.).
The
ultra-low
speed
brushless
DC
motoremployed
inthis unit
has
theextremely
lowpower
consumption,
andis
thusfree
from
vibrationsdue
to excessive
energyor heat
generation.
Thehigh
performance
of
the Direct
motorisdue
tothe eff
iciencyof
the
newlydeveloped
heavy
weight
baseand
to the utilization
of
the
one
chip
lCofthe B.FGsystem.
Tonearmsection
I Highlysensitive
universal
tonearm
Highlysensitive
universal
tonearm
ofthe gimbal
suspension
system
in which
precision
pivot
bearings
areemployed
atthe
horizontal
and
vertical
journals
of
thetonearm
hasmade
it
possible
to realize
arn'ltrictionof
7 mg.
Therefore
the
performance
ol the high-compliance
cartridge
can beJully
realized.
I Diecast
aluminum
headshell
The
headshell
integrally
formed
bystrong
diecast
alumrnum
forreduction
inweight
is
protectedfrom
harmful
headshell
resonance.
Additionally,
the
headshell
terminals
are
gold-
plated
for
prevention
of
contact
faultsat
replacement.
I Viscousdamped
cueing
To
prevent
damage
tothe
stylus
tipand
records
liable
to
take
place
duringoperation
of
the
tonearm,a cuelng
oevrce
damped
withviscousoil isadopted.
Since
thetonearm
can be raised
or loweredthrough
operatlon
(
thelever,
location
of
a desired
playing
portion
or
temporary
suspensionof
the
playing
are
convenientll'achieved.
I Anti-skatingcontrol
Prooeroutside
lorcecan
be
applied
by
such
a simple
operatior
as
aligning
theknob
with
thesame
value
as
thestyluspressur€
thus
cancelling
theskating
lorce
harmful
to
the
stylus
tip'
I Low-capacitance
phonocablesthatwill not impair the high-
frequencycharacteristics
of the cartridge

One chip lC (AN 630)
lnterior of AN 630
i__
Specifications
Turntable
section
Type
.
Drivemethod
Molor ...
Turntable
platler
Turntable
speeds
Pitch
conlrols.....
Wowand flutter
Rumble
... ..DirectDrive
Automatic
Turntable
System,
Automatic
start,
Automatic
return,Automaticshut-olf
and
memo-repeat
play,
Manual
play
.......
Direct
Orive
.......8ack
ElectromotiveForceFrequency
GeneratorservoDCmotor
employingonechiplC
.......Aluminum
die-cast,31cm (12-1l8")
....
..33-1/3
and
45r.p.m
.......lndividual
adjustment
controls,
10%
2alirreimant r2nna
... 0.03%w.R.M.s. (Jrs
c5521)
+0.042oh
Weightedzerotopeak
(DrN
45507)
-73dB
(DtN
4ss39B)
-s0 dB
(DrN
455394)
Ollset angle
Adiustable
styluspressure
range .
Carlridge
weightrange .
Headshell
weight
21.5'
0to 3g (stylus
pressure
direct
readingtype)
5.5
to 9.5
g
Cartridgesection
Type
Frequency
response
Oulputvollage .... ..
.....
Moving
magnetic
stereo
cartridge
. ..20to 25,000Hz
.....3.2mV(1
kHz,
5cm/s.zeroto
peak
Tonearm
section
Type..
Etfectivelength
Overhang
Friction......
Trackingerror angle
lateral
velocity)
(4.5
mV 1 kHz,
5 cm/s.
zero
to
peak
45' velocity)
Channel
separation
. .........25
dB at .1 kHz
Channel
balance .Within
2 dB at 1 kHz
Load
impedance
...............47
koto
100
ko
Stylus
pressure ..1.75
+0.25
g
Replacement
stylus............EPS-270ED
General
...Universal
tubulararm,static-
udrdrrucu LyPY
...230mm
(9-1/16")
...15mm
(19/32"\
..
Within
7 mg (horizontallyandvertically)
..Within
+3' f at
the
point
of1a5
I
I mm (5-45l6a")
froml
Ithe center )
Within+ 1' f at
the point
of55 'l
I mm
(2-3116")
from
I
Ithecenter )
Powersupply
Power
consumption
...
Dimensions
(H
xW xD)
Weighl
-110-120/22O-240V,50 or 60Hz
4.5
W
13.7
x 43.0 x 33.4
cm
(5-3/8
x16-15/16
x13-1/8")
7.2
kg (15.9
lbs.)
10

Matsushita
Electric
Trading
Co.,
Ltd.
PO.
Box2BB.Central
OsakaJaoan
SFNU19OXO1
s0577D1
Printed in Japan