Technics SL-1900 User Manual

OAdjustments
ol the
horizontal
"0" balance
and the
slylus
pressure
1.
Insert the
balance
weight
onto the rear
shaft
of
the tonearm.
(See
Figs.
5.)
2.
Remove
the
stylus
cover,
if
your
cartridge
has one.
3.
Release
the
arm
clamp
(Fig.
6) and lift
the
tonearm
from
the
arm rest
to free
the
tonearm.
Nole:
lf
the tonearm
is urged
to
return to
the
arm rest
when the
tonearm
is held
in a free
state in
Fig. 7,
rotate the
turntable
platter
clockwise about
10 times.
This
is necessary
because
in rare
cases the
automatic
mechanism
may have
engaged
the
tonearm
gear
or moved
out of its
normal
position
during
transDortation.
4,
Turn the
entire
balance
weight
clockwise
(indicated
by the
arrow
"A")
or countrerclockwise
(indicated
by the
arrow
,,B,')
until the tonearm
is
approximately
balanced horizontally.
(See
Figs.
7 and
8.)
5. After
the tonearm
is
horizontally
balanced, temporarily
f ix the
tonearm
by the
arm clamp.
(See
Fig.
9.)
Hold
the
balance weight
stationary
with f ingers
as shown in
Fig.
I
and rotate
only
the
stylus
pressure
ring
to bring
the
numeral
"0"
of
the
ring
into alignment
with the
center line
on
the
tonearm rear
shaft.
(The
adjustment
of
the
horizontal
balance is now
completed.)
Nole:
.1)
During
the
adjustment
of the horizontal
balance,
be
sure
that
the
stylus tip
of the
cartridge
does not
contact
the
turntable
mat
or turntable
base.
2)
Ensure that
the
anti-skating
knob
is at
',0'.'
position.
(See
Fig.
9.)
There
are
cases where
the
tonearm
may
sway or f low
slightly
at the
position
of
"0"
due
to the
highly
sensitive
rotational
part
of
the
tonearm,
but
this
side force
is
trivial
and
presents
no inconvenience.
3)
Ensure
thatthe
cueing lever
is
in the lowered position
as
shown in
Fig.
6.
4)
Make
certain thatthe
speed
selector
is in the
,,.,'
position,
the
balance
adjustment
is
easily made
as the turntable
platter
remains
stationary.
6. After
adjusting
the horizontal
balance,
turn the
balance
weight
clockwise
in
the
direction
of the
arrow
and
align the
correct
stylus
pressure (.1.75
g
).
(See
Fig.
10.)
Nole:
1)
As the
stylus
pressure
ring
rotates
together
with the
ba_
lance
weight,
proper
stylus
pressure
can
be selected
bV
directly
reading
the
graduated
ring.
2)
In
cases
where
the
recording
level
of
a
record
is ex-
tremely
high
or the
unit is
used in
a room
having
low
temperature
or records
are
ptayed
in
places
where
vibrations
are liable
to be transmitted
to
the turntable
system,
"distortion"
of sound
or,,skipping"
of stylus
may
take
place.
In
such
cases,
set to
,,2
g"
for
optimum
perf
ormance.
@Anti-skating torce
control
Set the
anti-skating
control
knob to the
same value
as
that
set
for
stylus
pressure.
(See
Fig.
11.)
Olnstatlation
ol the
dust
cover
(See
Fig.
12.)
Place
the
dust
cover into
position
from
direcily
above,
holding it
at
both
sides. For
detaching
the dust
cover, be
certain tirst
to
raise
it
as illustrated
before
removal.

Technics SL-1900 Specifications

General

Brand	Technics
Model	SL-1900
Category	Turntable
Language	English