Technics SL-1200 User Manual

We
want
to
thank
you
for
selecting
the
SL-1200,
DIRECT
DRIVE
PLAYER
SYSTEM.
To
receive
optimum
performance
from
this
DIRECT
DRIVE
PLAYER
SYSTEM,
we
recommend
that
you
read
these
operating
instructions
carefully.
PARTS IDENTIFICATION
OPERATION
AND
FUNCTION
OF
CONTROL:
(TURNTABLE SECTION)
AC LINE VOLTAGE (Fig. 2)
Make
sure
that
the
AC
line
voltage
selector
is
correct
to
your
local
volt
‘age before
connecting
the AC power
cord.
CAUTION
If your local voltage is different, please turn the AC line voltage selector
to your local voltage
@ROTOR (See Fig.1-@)
This
unit
uses
a
direct
drive
motor.
Therefore,
the
rotor,
which
is
the
rotating
part
of
the
motor,
is
connected
directly
to
the
turntable
platter.
The
spindle
of
the
motor
and
the
shaft
of
the
turntable
platter
are
the
same.
For
this
reason,
to
maintain
the
high
performance
described
in
the
specifications,
it
is
not
desirable
to
apply
a
large
amount
of
external
force
to the
rotor
and
the
spindle
of the
motor.
The
rotor
is, therefore,
clamped
securely
to
protect
the
delicate
and
important
parts
during
transportation,
Be
sure
to
remove
these
fittings
@
carefully,
and
save
them
for
future
use,
as
when,
for
example,
the
player
must
again
be
transported.
CAUTION
The
rotor
of
the
motor
is
constructed
so
that
it
cannot
be
removed,
in
order to maintain
its high performance
for a long time,
Do
not
attempt
to
remove
the
removal
prevention
fitting
@
for
the
rotor.
@POWER
SWITCH/SPEED
SELECTOR
(See
Fig.1-@)
Set
the
“speed
selector”
to
the
desired
position
(33
or
45,
depending
upon
the
speed
of
the
record
to
be
played).
The
strobo
illuminator
Will Be anes,
anid wie tuiatebe
ctininc
Wil (chem
@STROBO ILLUMINATOR (See Fig.1-@)
When
the
power
switch/speed
selector
is
on,
the
strobo
illuminator
is
lit,
VARIABLE
PITCH
CONTROLS
(See
Fig.1-
@
)
Adjust
the
“variable
pitch
controls”
if
necessary.
These
are
designed
to
provide
adjustment
of
the
selected
speed
by
10%
"ange
Select
the
speed
of
the
turntable
platter
by
setting
the
“power
switch/
speed
selector”
to
the
desired
position.
The
rotating
turntable
platter,
when
illuminated
by
strobo
illuminator,
may
show
movement
of
the
marks
on
the
strobo
disc.
Adjust
the
“variable
pitch
controls”
until
the strobo
marks are stationary.
After
the
necessary
adjustment
has
been
made,
the
speed
will
not
change
and
re-adjustment
will
not
be
necessary.
‘The
strobo
marks
molded
around
the
turntable
platter
are
used
to
check
the
correct
speed
of
rotation
for
50
Hz
(European),
and
60 Hz
(U.S.A.)
Adjust
its
rotation
according
to
the
strobo
label.
@SPEED ADJUSTMENT SCREWS (See Fig.1- © )
If,
for
any
reason,
the
adjustment
cannot
be
successfully
made,
use
a
(A)
tip
screwdriver
to
adjust
the
appropriate
speed
adjustment
screw
(33
of
45)
located
beneath
the
turntable
platter.
Turning
the
speed
adjustment
screws
to
the
right
or
left
will
increase
or decrease the speed respectively.
@STROBO MARKS (See Fig.1- @ )
@STROBO
LABEL
(See
Fig.1-
@
)

Technics SL-1200 Specifications

Turntable Section

type	Direct drive player system
turntable platter diameter	33 cm
inertial moment	310 kg-cm
turntable speeds	33.1/3 and 45 r.p.m.
motor	20 poles (rotor), 15 poles (stator) ultra low-speed brushless DC motor
power supply	AC 120V, 60Hz
wow and flutter	0.03% WRMS
rumble	-50 dB (DIN A) -70 dB (DIN B)
build-up time	1/2 rotation at 3-1/3 r.p.m.

Tonearm Section

type	EPA-120 Direct reading stylus pressure adjustment
effective length	220 mm
overhang	14 mm

Weight and Dimensions

weight	10 kg
dimensions (w x d x h)	45.3 x 36.6 x 18.0 cm