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Hitachi PS-48 - Turntable Connection Guide; Connecting Pickup Leads and AC Power; Earth Wire for Hum Reduction

Hitachi PS-48
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FEATURES
.
Uni-torque
motor
The
newly
developed
flatten
type
non-rectification
DC
servo
direct
drive
motor
“Uni-torque
motor”,
which
is
completely
different
in
basic
structure
from
the
conventional
direct
drive
motor,
is
employed.
Torque
of
this
“uni-torque
motor”
is,
by
definition,
constant,
so
it
rotates
smoothly
and
quietly,
and
provides
high
performance
S/N
ratio
and
wow/flutter
characteristics.
2.
The
initial
high
performance
is
maintained
over
a
long
period
The
only
system
in
the
turntable-drive
which
is
in
danger
of
getting
worn,
is
the
motor
bearing
section.
However,
wear-and-tear
of
the
section
is
small
and
the
initial
high
performance
can
be
maintained.
.
Convenient
automatic
mechanism
;
An
automatic
mechanism
is
built
in
which
controls
the
rotation
resistance
of
the
tonearm
making
it
small
and
this
enables
playing
to
be
done
with
light
stylus
pressure.
When
the
record
is
finished
or
the
auto-cut
lever
is
pushed
during
play,
the
tone
arm
returns
automatically
and
the
turntable
stops.
.
Speed
adjustment
by
means
of
the
neon
lamp
and
stroboscope
Speed
adjustment
can
easily
be
done
by
means
of
a
stroboscope
and
a
neon
lamp
which
are
installed
on
the
external
edge
of
the
turntable.
.
Employment
of
the
low
center
of
gravity
tone
arm
By
employment
of
the
S
type
low
center
of
gravity
tone
arm,
the
record
groove
is
traced
out
faithfully.
Adjustment
of
stylus
pressure
done
by
a
direct
reading
system
by
units
of
0.2g.
.
Oil
damped
arm
lifter
never
damages
stylus
tip
By
using
the
oil
damped
arm
lifter
for
lifting/lowering
the
stylus,
there
is
little
danger
of
damaging
the
record
or
stylus
tip.
.
Structure
resistant
to
howling
By
employment
of
the
large
vibration-proof
legs
and
the
vibration-proof
cabinet
as
well
as
the
installation
of
the
vibration-proof
rubber
to
the
arm
installation
section,
etc.,
the
structure
is
resistant
to
howling.
.
Easily
removable
dust
cover
The
dust
cover
can
be
detached
when
using
in
a
narrow
place
such
as
on
a
shelf,
etc..
AC
line
cord
Pickup
leads
with
RCA
type
plugs
Earth
wire
%
aiSttt
eo
aD
Ground
terminal
GND
PHONO
input
terminals
1.
Pickup
leads
with
RCA
type
plugs:
Connect
the
pickup
leads
(L
and
R)
coming
from
the
rear
of
the
turntable
to
the
PHONO
input
jacks
of
your
amplifier
—
connect
the
turntable’s
red
plug
(marked
R)
to
the
R
(right
channel)
input
jack
of
your
amplifier,
and
the
turntable’s
white
plug
(marked
L)
to
the
L
(left
channel)
input
jack
of
your
amplifier.
2.
AC
line
cord:
Plug
the
AC
line
cord
coming
from
the
rear
of
the
turntable
into
a
wall
outlet
or
into
the
unswitched
AC
receptacle
of
your
amplifier.
3.
Earth
wire:
Connect
the
earth
wire
(green)
provided
between
the
earth
terminal
(GND)
of
the
turntable
and
the
earth
terminal
of
your
amplifier.
Making
this
earth
connection
reduces
or
eliminates
hum.

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