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You
are
now the proud owner
of
a
Pioneer
4-
channel stereo display, model SD-1100. This
unit
is a
multipurpose instrument
for
observing
and
measuring various performance characteristics
of
your
4-channel
or
2-channel stereo system and
its
individual components. Incorporated
in
this
versa-
tile
units are
a
four-pole
oscilloscope, LEVEL
FEATURES
DISPLAY OF 4.CHANNEL STEREO SIGNALS
ln
addition
to
normal
2-channel stereo signals,
the
oscillo-
scope
can
be
used
to
show
all four
signals
of
a 4-channel
system simultaneously,
permitting accurate
balance
and
phase
checks.
DISTINCT, CLEARLY READABLE OSCILLO-
SCOPE
IMAGE
The 75mm (3in.)
screen
shows
a
clearly
def
ined
image
even
of
quickly
changing signals,
and
the practical
scale
on
the
screen makes
various adjustments and
readings
easy.
For extra
protection
of
the
screen, a special
circuit
automa-
tically
dims
the
beam
when
only a spot is
displayed,
to
prevent burning
of
the
phosphorescent layer.
EASY.TO
READ LEVEL
METERS
The
large,
clearly
readable level meters
on
the
front
panel
permit
easy
readout
of
various level
measurements. The
meter
range
is
adjustable
in
10dB
steps
from 20V
full
scale
(+20d8)
to
20mV (-40dB) in
accordance
with
the
various
input
terminals
of different
sensitivity.
BUILT-IN AUDIO SIGNAL
GENERATOR
For
frequency
response measurements
to
amplif iers etc., the
SD-1
100 contains
an
audio
signal
oscillator
with
frequencies
freely
adjustable
from
2OHz
Lo
2OkHz.
Set at
SWEEP
AUTO,
the
oscillator
will
automatically
sweep
over
the
whole 20Hz
to
20kHz
band
in
a cycle
of
approximately
25
seconds.
meters,
an audio,signal generator
with
sweep
capa-
bility,
and
a
sweep
generator.
As this
unit is
rather more
complicated
in
its
design
and
operation than other audiocomponents,
please
study the following instructions very
care-
fully
and
keep
the manual at hand for reference.
AUDIO
SWEEP
FACILITY
FOR DIRECT
OBSERVATION
OF
FREOUENCY
RESPONSE
The
frequency
characteristics
of
tone
controls,
filters,
crossover
networks,
loudspeakers,
etc. can be
observed on
the
scope,
and
peaks
and dips
can be
detected.
This
is
possible
by
utilizing
the audio
oscillator
sweep
for
hori-
zontal
scope
beam
deflection.
VERSATILE, EASILY SWITCHABLE
INPUTS
High level inputs
accept
comparatively
strong
signals
(as
from
amplifier's
speaker
outputs),
while low level
inputs
are provided
on
the
front
and rear
for
low
level
signals
(PRE-AMP
out, etc.). lnputs
are selected
by
simple
push-
button
switches.
MULTIPLE
APPLICATIONS
With
the built-in
signal generator
and
a
good microphone,
the
overall frequency
characteristics
of your
stereo
system
and listening room can be
measured
and tone controls
etc.
adjusted
accordingly
for optimum
sound.
With the
Lissajous
display
facility,
phase
relations
in
a
2-channel
or
4-channel
system
can
be observed
and,
if
necessary,
corrected.
Accu-
rate balancing
is
possible
with the
LEVEL
meters.
With
a
test record
or
test
tape,
frequency
and
other
characteristics
of
phono
cartridges and tape
equipment
can
be
checked the
SD
1
100
provides
a
multitude
of
uses
for
scientif
ically
accurate system
checks.
FM MULTIPATH DETECTION
POSSIBLE
FM multipath
reception,
the
greatest
enemy
of
distortion-
free
FM
sound, can
be
detected, thanks
to
the
special
FM
multipath
input
provided. (The
tuner must
be
equipped
with
a
special
output.) Thus, the
antenna
can be
precisely
positioned
for
optimum
reception.
o
On
or near
a
power amplifier or transformet,
and
especially
on
a
vacuum tube
type
amplifier.
o
Moist and dusty
places.
o
The
vicinity
of
strong magnets, motors,
trans-
formers,
etc.
WHERE TO PLACE
THE SD.llOO
As the
SD-1100
is fully
equipped
with
silicon
transistors (except
in
the
cathode-ray
tube), it
poses
no
great problems
in
regard
to
heat
dissipa-
tion.
However, avoid the following kinds of
places:
o
Direct sunlight
and
the vicinity
of
heat
sources'
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