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CONTROLS
AND
THEIR
FUNCTIONS
Function indication lamps
Overload alarm-indication lamp
(OVER LOAD ALARM)
Power pushbutton
(POWER)
Stereo indicator (FM STEREO)
FM center-tuning meter (TUNING)
Signal-strength meter (SIGNAL)
Tuning control (TUNING)
& Technics
Headphones
jack (PHONES)
Speaker selection
pushbuttons (SPEAKERS)
Tone control (BASS)
Turnover pushbutton (TURNOVER)
Tone pushbutton (TONE)
Turnover pushbutton (TURNOVER)
Tone control (TREBLE)
Low-filter pushbutton (LOW FILT)
High-filter pushbutton (HIGH FILT)
Balance control (BALANCE)
Power pushbutton (POWER)
Upon
pushing
this
button,
the
tuning
dial,
the signal-
strength meter and the FM center-tuning meter will illumi-
nate, indicating that the receiver is on.
To turn the receiver off, push the button again; the lights of
the tuning dial, signal-strength
meter
and the FM center-
tuning meter will go off.
This pushbutton also controls the power to the "switched"
outlet on the rear panel of the receiver.
Speaker selection pushbuttons (SPEAKERS)
Pushbutton
speaker selection
system.
The speakers are selected by pushing one or both buttons,
and are turned
off by repushing.
Only the speaker system
which
is switched
on operates.
It is possible to operate both speaker systems by pushing
both buttons.
In addition,
sound
reproduction
can
be enjoyed
by using
only the headphones, even when both speakers systems are
switched off.
(PHONO IMPEDANCE)
Tape monitor selector
(TAPE MONITOR)
Mode pushbutton (MODE)
Delay time pushbutton (DELAY TIME)
—-FM muting-off pushbutton (FM MUTING)
Muting pushbutton (MUTING)
Loudness control pushbutton (LOUDNESS)
Volume control (VOLUME)
Input selector (SELECTOR)
For selection of the input sound source.
PHONO 1. 2: For record player operation.
FM AUTO:
Use this position to listen to radio programs
on the FM broadcast band. Many of the broad-
casts on this band may be stereophonic.
The "FM AUTO"
position automatically pro-
vides
stereo/mono
switching
for stereo
or
monaural
broadcasting.
AM:
Use this position ot listen to radio programs
on the AM broadcast band.
AUX:
For playback of the sounds
from equipment
connected
to the auxiliary input terminals.
NOTE:
:
If the input levels of each program source are not matched
and
the input selector
is inadvertently
switched,
a large
sound
output
may
be
applied
to the
speakers,
causing
damage to them.
To avoid this, make sure, when
switching inputs, either
that the input levels are
matched,
or that the volume
is
reduced
before switching.
whe
Input impedance selector
Input selector (SELECTOR)
Function indication lamps
One of these indication
lamps automatically illuminates to
indicate which program source has been selected by the
input selector.
If, for example, the input selector is-set to the "FM AUTO"
position, the indication
lamp
marked
"FM
AUTO"
illumi-
nates. If the input selector is set to the ''PHONO 1" position,
likewise the indication
lamp
marked
"PHONO
1" illumi-
nates.
Tape-monitor selector (TAPE MONITOR)
TAPE 1:
For playback from the tape deck connected to
the tape 1 terminals.
TAPE 2:
For playback from the tape deck connected to
the tape 2 terminals.
SOURCE:
For reproduction of the sound from the sound
i
sources selected by the input selector.
TAPE 12:
For recording
(dubbing)
from
tape deck
1 to
tape deck 2.
TAPE 21:
For recording (dubbing) from tape deck 2 to
tape deck 1.
Tuning control (TUNING)
Turn
the
tuning
control
slowly
until
the
dial
indicator
indicates
the
desired
FM
or AM
broadcast
frequency.
Always: tune for the highest possible signal-strength
meter
reading,
which
indicates
the optimum
receiving
position.
This
will
assure
clear,
undistorted
reception,
minimum
interference
from
adjacent
stations,
and
maximum
left-
right
channel
separation
during
FM
stereo
broadcasts.
The value of the signal-strength meter reading will depend
on the signal-strength of that particular station.
When
the FM center-tuning
meter needle
is at the center,
reception is optimum. Turn the tuning control slowly to left
and right until the FM center-tuning meter needle points to
the center position.
Signal-strength meter (SIGNAL)
Tune the receiver to the approximate
frequency
of the
desired station.
Observing the signal-strength meter, tune until its indicator
moves to the maximum
position, which
indicates the posi-
tion of best tuning.
FM center-tuning meter (TUNING)
For FM broadcasts, tune approximately by referring to the
signal-strength
meter.
Pinpoint
the
best,
least
distorted
position with the FM center-tuning meter.
The needle of the meter is in the center if no broadcast
is
being received. During tuning, the needle fluctuates to the
left and right. When the station is locked in, the needle re-
turns to the center. If the tuning control is re-adjusted, the
needle will fluctuate again to the left and right, and when
the broadcast is completely detuned, the needle returns to
the center.
Stereo indicator (FM STEREO)
The
stereo
indicator
illuminates
in
orange
when
the
receiver is tuned to a station broadcasting in FM multiplex
stereo.
If the mode pushbutton is pressed to the ""MONO" position,
the stereo indicator will not illuminate
even
though
the
broadcast is in stereo.
Mode pushbutton (MODE)
The mode pushbutton
is used to select the playback mode
of the program source.
This pushbutton has two positions, ''STEREO"
(released)
and ''MONO"' (pressed).
STEREO: For reproduction
in stereo.
The left input is reproduced from the left speaker,
and the right input is reproduced from the right
speaker.
MONO:
Mixed inputs of both left and right are reproduced
from both speakers
as monaural
sound.
Volume control (VOLUME)
This control is for adjustment of the volume
level.
The volume level is increased by turning the control to the
right, and decreased
by turning it to the left.
The contro!
is graduated,
between
0 dB
and
— 40 dB, in
2-dB steps, for volume attenuation. For reproduction at a
level lower than
—40 dB, it is convenient to set the muting
pushbutton
to the ''—20 dB"
position.
Note, however, that
the volume
will be suddenly increased
if the muting push-
button is released to the ''O0 dB" position during operation.
Muting pushbutton (MUTING)
If this pushbutton is pressed to the ''—20dB"' position, the
volume is decreased
by 20 dB without changing the setting
of the volume control.
This pushbutton is convenient for use when changing a disc,
or for decreasing
the volume
because
of, for instance,
the arrival of an unexpected caller or a telephone call.
Balance control (BALANCE)
The left and right volume balance is influenced by the dif-
ference, if any, between the efficiency of the left and right
speakers,
and by the placement
of the furniture
in, the
listening room.
In addition,
the
left and
right volume
of some
program
sources is not well balanced. If the control is turned further
to the left, beyond the ''0"' position, the right sound becomes
lower. At the "LEFT" position (at which the control is com-
ly turned to the left), the right sound cannot be heard at all,
and only the left sound
is emitted.
If the control is turned to the right, the left sound
becomes
lower and, atthe "RIGHT" position (at which it is completely
turned to the right), the left sound cannot
be heard
at all,
and only the right sound is emitted.
In order to adjust the balance
between
the
left and
right
volumes,
push the mode
pushbutton to the ''MONO"
posi-
tion, so that the sound is heard from a position at the center
between
the left and right speakers.
After the balance is satisfactorily adjusted, push the mode
pushbutton
once
again
to
release
it
outward
to
the
"STEREO"
position.
Tone controls (BASS, TREBLE)
These controls are used to make adjustments of the tone
quality which may become necessary as a result of speaker
characteristics
or listening
room
characteristics,
making
it possible to adjust the tonal quality to that most agreeable
to the listener's preference.
The
bass
control
is for adjustment
of the tone
quality of
the
low
sound
range,
and
the treble
control
is for the
high sound range. The characteristics can be changed with-
in a range of +12 dB to —12 dB for the bass at 50 Hz, and
within a range of +10 dB to — 10 dB for the treble at 10 kHz.
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