Technics SL-1200 User Manual

Fig. 1
Abb.1
(TONEARM SECTION)
@HEAD SHELL (See Fig.4- @ , Fig.5)
Insert the head shell in the end of the tonearm, and secure firmly by
turning the locking nut of the tonearm in the direction of the arrow, as
shown in the picture, Be sure to connect the lead wires to the cartridge
terminals
according
to
the
instructions
included
with
the
cartridge.
‘The cartridge should be inserted in the head shell so that the spacing
between the stylus tip and the plug is 2 mm (2-1/16") as shown
the
@LOCKING
NUT
(See
Fig.4-
@
)
@ANTI-SKATING
FORCE
DEVICE
(See
Fig.4-
®)
Skating force is the frictional force caused by contact between the tip
of the stylus and the record groove, and is applied to the stylus as
a side pressure depending upon the relationship of the geometrical
position of the tonearm.
This force results in an unbalance of the contact pressure between the
stylus tip and each groove wall of the record, an increase of distortion,
a
deterioration
of
the
performance,
a
decrease
of
separation
character-
istics and abnormal wear of the stylus tip and the record grooves.
For this reason, it is necessary to compensate this skating force.
The anti-skating force mechanism performs this compensation function.
‘The quantity of anti-skating force is in proportion to the stylus pressure
and, therefore, it should be adjusted according to the stylus pressure.
Turn the adjustment knob to the same number as stylus pressure scale
indicates,
@BALANCE
WEIGHT
(See
Fig.4-
@
,
Fig.6)
This
balance
weight
is especially
designed
for
easy
adjustment
of
zero
balance,
Install
the
balance
weight,
packed
in
the
parts
box
on
the
rear
of
the
tonearm.
By
turning
the
stylus
pressure
knob
to
the
arrow,
as
shown
in
the
picture,
adjust
the
zero
balance.
(that
is,
floating
the
tonearm
free).
After adjustment pull the outside of the stylus pressure knob in the
direction of the arrow, then the scale will be reset automatically to the
zero position.
Adjust the stylus pressure by turning the stylus pressure knob to the
arrow in the picture according to the stylus pressure of the cartridge
which you use.
This tonearm accepts any cartridge whose weight is from 4.5 to 11.59.
@®ARM BASE (See Fig.4- ® )
@ARM HEIGHT ADJUSTMENT SCREW
(See
Fig.4-
@
,
Fig.7)
If
it
is
necessary
to
adjust
the
height
of
the
tonearm,
loosen
screw
and
move
the
tonearm
up
or
down,
@CUEING LEVER (See Fig.4-@ , Fig.7)
After separating the tonearm from the arm rest, and then moving the
cueing lever toward @ position (as shown in the picture), the tonearm
will raise. Hold the tonearm and place the tip of the stylus above
the groove of the record from which you desire to play. When the
cueing lever is moved to the @ position, the tonearm will descend
slowly and the performance will begin.
@FINE ADJUSTMENT SCREW (See Fig.4-@, Fig.7,8)
Adjust the fine adjustment screw, so that the interval between the
stylus tip and record surface is from 6 to 10 mm (15/64" to 25/64")
@ARM LIFT ADJUSTMENT SCREW (See Fig.4-@, Fig.8)
If, for any reason, the adjustment cannot be successfully made by the
fine adjustment screw, adjust the height of the arm lift by turning this
screw.
@ARM REST (See
Adjust so that the tonearm is parallel to the record when the height of
the tonearm has been adjusted.

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