Technics SA-5570

CONTROLS AND THEIR FUNCTIONS:
Power pushbutton (POWER)
Upon pushing this button, the tuning dial, the signal-
strength meter and the FM center-tuning meter will iilumi-
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,
(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 fs 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. J
fara Ane aca Se
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 controt 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 +13 dB to —13 dB for the bass at 50 Hz, and
within a range of +12 dB to — 12 dB for the treble at 10 kHz.
The characteristics are ‘flat’ at the “0” position, and are
increased by turning the control to the right from the “0”
position, or decreased by turning it to the left.
(tow filter pushbutton {LOW FILT) ‘)
It this pushbutton is pressed to the‘ ON" position, bass sound
which is lower than 100 Hz is decreased with a sharp curve
characteristic of —6 dB/oct,
This pushbutton is especially useful when there is unwant-
ed noise in the low range bacause of record warp, motor
rumble, poor performance by the cone of the woofer, etc.
High filter pushbutton (HIGH FILT) =)
If this pushbutton is. pressed to the “ON” position, treble
sound which is higher than 7 kHz is decreased with a sharp
curve characteristic of -6 dB/oct..
This pushbutton is especially useful if there is a great a-
mount of record ‘scratch’ noise, tape hiss, or if the tone
quality is unsatisfactory because there is much distortion
in the treble sound of the program source.
a
(Volume controt (VOLUME)
This control is for adjustment of the volume level.
Turning the control clockwise (maximum position is ‘10”)
increases the volume, Always set the valume control at “0”
before turning on the unit.
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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 controf 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, at the “RIGHT” position (at which it is completely
pletely 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.
FM center-tuning meter (TUNING) +)
For FM broadcasts, tune approximately by referring to the
sigrial-strength meter. Pinpoint the best, least distorted
position with the FM center-tuning meter.
The,needle of the meter fs in the center if no broadcast Is
beirig received. During tuning, the needle fluctuates to the
left and right. When the station is locked in, the needie re-
turn$ to the center. If the tuning control is re-adjusted, the
neetie will fluctuate again to the left and right, and when
the broadrast is completely detuned, the needle returns to
(the center.
Signal-strength meter (SIGNAL)
Tune the receiver to the approximate frequency of the
desired station.
Observing the signal-strength meter, tune until its indicator
movgs to the maximum position, which indicates the posi-
tion of best tuning.
Stereo indicator (FM STEREO)
The stereo indicator illuminates in orange when the
receiver is tuned to a station broadcasting in FM multiplex
stereo,
If thé mode pushbutton is pressed to the “MONO” position,
the 'stereo indicator will not Illuminate even though the
\ broadcast is in stereo, =
Loudness control pushbutton (LOUDNESS)
The loudness control compensates for “thinning out” of the
sound. Human ears cannot perceive the low-frequency
tange at low volumes, but this control compensates for
this, boosting the bass as the volume decreases. Note,
however, that if the volume control is set to a position
(higher than the “5” indication, the efficiency becomes less.
(Fm muting-off pushbutton (FM MUTING)
This muting-off pushbutton should be kept in its normal
position (released, muting-on position) to eliminate annoy-
ing between-station noise or extremely weak stations on
the FM band. Because weak-signal stations aré difficult to
tune, nearly impossibie to listen to in stereo, and will not
possess the noise-free reception characteristics of strong-
signal stations, it is recommended that you keep the mut-
ing-off pushbutton at the normal (released) position.
Should you wish to search for or tisten to weak-signal
stations, press the pushbutton (muting off}.
Xx
‘Mode pushbutton (MODE)
The'mode pushbutton is used to select the playback mode
of the program source.
This pushbutton has two positions, “STEREO” (released)
endl MOO" (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,
Mixed inputs of both left and right are reproduced
from both speakers as monaural sound.
MPX hi-blend pushbutton (FM HI-BLEND)
This pushbutton is effective only for FM stereo reception.
This button, when pressed, blends an exact measure of the
high frequency tones of the left and right audio channels
to eliminate annoying background noise and hiss from very
{wear stereo stations. J
(Tuning control (TUNING)
Turn the tuning contro! 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 ciear, undistorted reception, minimum
interference from adjacent stations, and maximum left-
right channel separation during FM stereo broadcasts.
The vaiue 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.
Le se D
Input selector (SELECTOR) ~)
For selection of the input sound source.
PHONO For record player operation,
FM AUTO Use this position to listen to radio programs on
the FM broadcast band. Many of the broadcasts
on this band may be stereophonic.
The “FM AUTO" position automatically provides
stereo/mono switching for stereo or monaural
broadcasting.
AM Use this position to listen to radio programs on
the AM broadcast band.
AUX For playback of the sounds from equipment con-
H nected 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. }
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Tape monitor pushbuttons (TAPE MONITOR)
When playing back from a tape deck, set the pushbutton to
the “TAPE 1” (pressed) or “TAPE 2" (pressed) position.
When playing back from the source designated by the input
selector, set it to the “SOURCE” (released) position.
When using a 3-head tape deck, the. sound which has just
been recorded can be monitored by setting the pushbutton
to the pressed (“TAPE 1” or “TAPE 2") position, The sound
just prior to recording can be monitored by setting the push-
button to the “SOURCE” (released) position.
in addition, the recording condition can be checked during
recording by setting the pushbutton alternately to the
“TAPE 1” (“TAPE 2”)/"SOURCE” position.
TAPE-1 pushbutton: For monitoring tape deck 1 sound.
TAPE-2 pushbutton: For monitoring tape deck 2 sound.
NOTE:
When monitoring with the tape-t pushbutton, be sure to set
the tape-2 pushbutton to the “SOURCE” position. When
monitoring with the tape-2 pushbutton, be sure to set the
tape-1 pushbutton to the “SOURCE” position.
Both sources, tape deck 1 (“TAPE 1") and tape deck 2
(“TAPE 2”), cannot be played back simultaneously, the
unit,being designed so that tape deck 2 will have prior
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