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PIONEER
TAPE MONITOR SWITCH
Use this to select the program source which is
being reproduced.
1:
Set here to monitor a recording or a tape
being played back on a tape deck which is
connected to the TAPE 1 jacks.
OFF:
Set here whenever you are not playing back
a tape or monitoring a recording (i.e. when
you
have
set
the
function
selector
to
PHONO
or TUNER,
or AUX
for an alter-
native program source).
2:
Set here to monitor a recording or a tape
being played back on a tape deck which is
connected to the TAPE 2 jacks.
(@ FUNCTION SELECTOR
Use this selector to select the program source.
When set, the function indicator above the meter
panel corresponding to the position of the func-
tion selector will light up.
PHONO:
Set here when playing records on a
turntable connected to the PHONO jacks.
(The PHONO function indicator lights up.)
TUNER:
Set here when listening to broadcasts
on a tuner connected to the TUNER jacks.
(The TUNER function indicator lights up.)
AUX:
Set
here
when
listening to a program
source
which
is connected
to the AUX
jacks.
(The AUX function indicator lights up.)
(2 HEADPHONE JACK
Plug the
headphones
into
this jack when
you
want to listen through your stereo headphones.
NOTE:
Set the speaker selector to OFF when listening only with
headphones.
(3) SUBSONIC FILTER SWITCH
When this switch is set to the 15Hz position, the
subsonic filter with a cut-off frequency of 15Hz is
actuated.
The subsonic filter serves to attenuate
frequencies lower than 15Hz in a 6dB/oct slope.
It is therefore effective in suppressing ultra-low-
frequency
noise
which
is generated
by record
warp and other causes. You cannot actually hear
this noise but it is a factor in the generation of
intermodulation
distortion
and
it may
damage
your speaker system. Set this switch to the 15Hz
position during record play for the best effect.
TONE SWITCH
Set this switch to ON when adjusting the bass and
treble
controls.
When
set
to
OFF,
the
tone
control
circuits
are
disengaged
and frequency
. response is flat. This function is convenient. for
checking
phono
cartridge
and
speaker
tone
quality and listening room acoustics.
(5 BASS AND TREBLE CONTROLS
Use these controls to adjust the bass and the
tréble. If you set the tone switch to ON and turn
the bass control to right from its center position,
you will be able to emphasize the sound in the
low-frequency
range.
Conversely,
turning
the
bass control to the left from the center position,
you will attenuate the sound.
You
can use the treble control
to adjust the
sound in the high-frequency range.
MUTING SWITCH
Set this switch to —20dB 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
selector to mono
(L+R, L, or R), 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 adjusting,
return the mode selector to STEREO.
MODE SELECTOR
Use this selector for selecting the performances.
REV: Reverses
left and
right channel
stereo
signals and reproduces
them stereophon-
ically.
STEREO:
Set to this position for normal stereo
reproduction.
L+R: Mixes
left and
right channel signals and
reproduces them monophonically.
L:
Left channels signal is reproduced mono-
phonically, from both speakers.
R:
Right channel signal is reproduced. mono-
phonically from both speakers.
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