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@) Volume control (LEVEL ATTENUATOR)
Use this to adjust the sound volume.
It is con-
figured
as a 32-contact
attenuator,
and
the
'0'
position
indicates
the
maximum
output
power.
Attenuation
can
be provided
in 1 dB
steps
between
O and
10dB,
in 2dB
steps
between
10 and 22dB,
in 3dB steps between
22 and
46 dB, and in 4dB
steps between
46
and
70d8.
The
attenuator
system guarantees
accurate sound volume adjustments.
@ MUTING switch
This switch
is set to ON when depressed, and
an
attenuation
of 20dB
is provided.
Use this
switch when lowering the sound volume tempo-
rarily
or
when
finely
adjusting
the
level
to
listen to the sound at a low volume.
Note: High-output signals will be applied to the
speakers when the MUTING
switch is set
to
OFF,
and
they
may
be damaged.
Therefore,
always check
the position of
the volume control, or set the control to
its minimum
position
(%) if you are not
sure of the strength of the sound, before
setting the MUTING
switch to OFF.
(9 FUNCTION switch
This selects the program source.
PHONO-1
...
For
hearing
a record
on
the
turntable
connected
to
the
PHONO
1 input terminals 1%.
PHONO-2
...
For
hearing
a record
on
the
turntable
connected
to
the
PHONO
2 input terminals 18.
TUNER
....
For listening to a broadcast on
a
tuner
connected
to
the
TUNER
input terminals 79.
AUX
......
For
listening
to
a
program
source
On
a component
con-
nected
to the AUX
input ter-
minals 2.
4) TAPE switch
(See page 5 for further details)
Select
the switch
positions as outlined below
when playing back a tape, when monitoring the
recording state during tape recording, and when
dubbing tapes.
SOURCE
...
For recording
a sound
source
selected
by
the
FUNCTION
switch.
TAPE 1. ....
For
monitoring
the
playback
or recording
of a tape
in tape
deck
1 which
is connected
to
the TAPE
1 terminals.
TAPE 2 ....
For
monitoring
the
playback
or recording
of a tape in tape
deck
2 which
is connected
to
the TAPE 2 terminals.
The following
two
positions are used for tape
dubbing.
COPY
12...
For playing back a tape in tape
deck
1 which
is connected
to
the TAPE
1 terminals and re-
cording
the contents
of that
tape onto a tape in tape deck 2
which
is
connected
to
the
TAPE
2 terminals
(this pro-
cess is called dubbing).
At
position
1 the reproduced
sound of the tape in tape deck
1 can be heard, and at position
2 it is possible to monitor the
recording
state
of the tape in
tape deck 2.
COPY 2 D1...
For playing back a tape in tape
deck
2 which
is connected
to
the TAPE
2 terminals and re-
cording
the contents
of that
tape onto a tape in tape deck 1
which
is
connected
to
the
TAPE
1 terminals (this process
is called dubbing).
At position
2 the reproduced
sound of the tape in tape deck
2 can be heard, and at position
1 it is possible to monitor the
recording
state of the tape in
tape deck 1.
42 TREBLE control
Operate
this control
after setting the TONE
switch 44 to ON. Turning this control
to the
right from
"0
position
increases
the treble
and conversely, turning it to the left decreases
the treble.
The treble can be adjusted +10 dB at 10 kHz
when
the TURNOVER
switch
(TREBLE)
4
is set t0 3 kHz, and £10 dB at 20 kHz when the
same switch is set to the 6 kHz position.
(3 TURNOVER
switches (BASS, TREBLE)
Use these switches to compensate for the acous-
tics of the listening room or the characteristics
of the cartridge. The bass turnover frequencies
are 150 Hz and 300 Hz, while the treble turn-
over frequencies are 3 kHz and 6 kHz. The con-
trol range is shown in the following figure.
aCe.
ay ot
H
ip aueaee!
Ah
-
aC
i
ane wen
A
\ or Bass and
Treble controls
in center position
\
Frequency
response
{dB]
Frequency [Hz]
(4 TONE switch
Set this switch
to ON when you want to con-
trol the tone characteristics, and then proceed
with the bass and treble controls. Setting this
switch
to the DEFEAT
position yields a flat
frequency response irrespective of the BASS @
and TREBLE 42 controls.
(5) BASS control
Operate
this control
after setting the TONE
switch 4 to ON. Turning the BASS contro! to
the right increases the bass, and turning
it to
the
left decreases
the bass. When
the TURN-
OVER
switch (BASS) @ is set to 300 Hz, you
can adjust the bass +10 dB at 100 Hz and when
it is set to 150 Hz, you can adjust the bass +10
dB at 50 Hz.
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