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3. FRONT PANEL FACILITIES
POWER METERS-
These power meters allow you to read out the rated
power level when speakers with a nominal impedance of
8 ohms are connected to the receiver's speaker terminals.
NOTE:
These
values are
related
to
the impedance of the
speakers and they vary according to the frequency.
In order to find out the exact output level, connect an
S-ohm dummy load instead of the speakers.
PHONES JACK-
Plug the headphones into this jack when you want to
listen through your stereo headphones.
Release the all SPEAKERS buttons if you want to listen
to the sound through your headphones only. (This means
that all two buttons will be released).
-FILTER BUTTONS
15Hz
When this button Is pressed, a 6dB/oct atteiiua-
tion can be provided for frequencies b ow
15Hz. This means that you can cancel out r >ise
in the ultra-low frequencies which is gener ted
by low-pitched rumble from a turntable md
other forms of distortion. Although this r jise
cannot be heard, it can generate intermo<ula-
tion distortion and damage the speakers.
6kHz , . Press this button to provide a 6dB/oct atlc ua-
tion at frequencies above 6kHz. Set it to this
position when you find high-frequency n lise,
such as that from scratched records, unpIca; jnl.
I—
FUNCTION BUTTONS
Press the function button which corresponds to the pro¬
gram source. Turn the VOLUME control down first
before selecting a different function button while the
sound from one program source is being reproduced.
FM.Press this button for FM broadcasts.
The
FM
STEREO
indicators
light
up when the receiver is tuned into an
FM stereo broadcast.
The sound is
automatically received monophonical-
ly during FM monophonic broadcasts.
AM.Press this button for AM broadcasts.
AUX.Press this button when listening to an
audio component connected to the
AUX input jacks.
POWER SWITCH^-
Flip this switch to the ON position to supply power to the
stereo receiver. There will be a short delay when it is set
to ON, because the muting circuit has been actuated to
suppress the unpleasant noise that is sometimes generated
when the power is switched on and off.
SPEAKERS BUTTONS
Press the button corresponding to the speakers connected
to the SPEAKERS terminals (A, B) on the rear panel. You
can press two of these buttons to listen to sound from
two pairs of speaker systems at the same time,
BASS TURNOVER SWITCH
Use this switch to change over the frequency in which the
sound adjustment with the BASS control is starting to
take effect. Select 200Hz or 400Hz in accordance with
the characteristics of your listening room and of your
speakers, and with your general preference.
TONE SWITCH-
Set this switch to ON when adjusting the BASS and
TREBLE controls. In the OFF position, it causes the
amplifier to operate with a flat frequency response.
BASS AND TREBLE CONTROLS
Use these controls to adjust the bass and the trlble.
If you set the TONE switch to ON and turn the B
control to the right from its center position, you wi
able to emphasize the sound in a frequency range whilti is
lower than that selected by the BASS TURNOt
switch. Conversely, turning this control from the ctfiter
position to the left will attenuate the sound.
You can use the TREBLE control to adjust the sound
frequency higher than that selected by the TREBLE
TURNOVER
switch.
hSS
be
n a
LOUDNESS SWITCH
Set this switch to ON when listening at a low volume.
The frequency response of the human ear varies according
to the listening volume, and setting this switch to the ON
position compensates for hearing response by emphasizing
the bass and treble.
TREBLE TURNOVER SWITCH
Use this switch to change over the frequency in which the
sound adjustment with the TREBLE control is starting to
take effect. Select 2.5kHz or 5kHz in accordance with
the characteristics of your listening room and of your
speakers, and with your general preference.
PHONO 2/MIC.. Press
this button
when
playing a
record on the turntable connected to
the PHONO 2 jacks, or when using a
microphone which you have plugged
into the MIC jack.
PHONO 1.Press
this button
when playing a
record on the turntable connected to
the PHONO 1 jacks.
NOTES:
1.
Unplug the microphone from the MIC jack when you
do not intend to use the microphone otherwise you
will not be able to use the PHONO 2 jacks.
2.
Only one function button should be pressed at a
time.
MIC JACK
Plug your microphone into this jack.
The microphone signals are reproduced in mono through
the left and right speakers.
NOTE:
A high impedance (approx. 50 kilohms) dynamic type
microphone with a standard plug can be connected to
this jack.
VOLUME CONTROL
Use this control to adjust the output level to the speakers
and headphones. Turn it clockwise to increase the output
level. No sound will be heard if you set it to
The scale
is graduated in dB which indicate the attenuation when
the maximum output level is OdB.
MUTING SWITCH
Set this switch to the -20dB position to attenuate the
audio output indicated by the VOLUME control by 20dB.
There is no need to adjust'the VOLUME control if you
use this switch when turning down the audio output
temporarily and when changing over records or tapes.
BALANCE CONTROL
Use this control to balance the volume of the left and
right channels. First, however, set the MODE switch to
MONO, and adjust so that the sound appears to come
from somewhere exactly between the two speakers. If the
sound appears to be louder on the right, it means that the
volume of the right channel is higher. Turn the BALANCE
control to the left and adjust. Conversely, if the sound
appears to be louder on the left, it means that the
volume of the left channel is higher. Therefore, turn the
BALANCE control to the right and adjust. After adjust¬
ing, return the MODE switch to STEREO.
y
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