Pioneer SX-770 Installation, Operating And Service Manual page 5

KNOtsS AND
SWITCHES
ON
FRONT
PANEL
1.
SPEAKERS (POWER SUPPLY AND
LOUDSPEAKER)
SWITCH
This knob turns
off
the power supply, and
selects
the
loud-
speaker
output terminals. The function at
each
position of
the
knob
is as
follows:
POWER
OFF
Model
SX-770
is deenergized.
SPKR'S
A
Loudspeaker
output
terminals
A
are operative.
SPKR'S
OFF
Both
loudspeaker
output
terminals
A
and
B
are
inoperative. This
position
is selected when
using a stereo headphone.
SPKR'S
B
Loudspeaker
output
terminals B are operative.
SPKR'S
A
+ B
Both
loudspeaker
output
terminals
A
and
B
are operative.
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2.
TUNING
INDICATOR
Fig. 5
When tuning
the
radio
receiver
to
an FM
or AM
broadcast
station, the TUNING
KNOB
(4)
is adjusted so
that the
pointer
of
this
meter may deflect
to the
maximum.
3.
FM STEREO
INDICATOR
When
the
receiver
receives
an FM
stereo program, this
lamp
I
ights,
4.
TUNII\G
KNOB
An AM
or
FM
broadcasting
station
is
tuned
in.
While observing
the pointer of
the
TUNING tNDICATOR (2),
set
the knob
for
the
best receiving condition.
5.
SELECTOR
SWITCH
This wnitch
is
used
to
select a broadcast reception
mode
or
the
record
playing
mode:
AM
For
reception
of
an
AM (medium
wave) broad-
cast program.
FM
MONO
For
reception
of a monophonic
FM
broadcast
program.
FM
AUTO
For
reception
of
an FM
broadcast program,
automatically
s1^ritching
the
receiver
for
stereo
or
monophonic
mode.
PHONO/MIC
Sets the
equipment
for
playing a disc
record
and
microphone.
AUX
Sets
the
equipment
for
reproducing
the
aux-
iliary inpul
signal.
When
the SELECTOR
srivitch
is
operatd, the program
indicator
lamp corresponding
to
the
selected source lights.
6.
PHONES
Cord plug
of
a stereo
headphone is insened here for
enjoying
stereo
play without
disturbing other people around.
Loud-
speakers
stop emitting
sound
then.
For the
stereo
headphone,
PIONEER's Model
SE-2P, SE-20, SE-30
or
SE-SO
is
recom-
mended.
o
When a longer cord
is required
for
the
stereo headphone,
use
PIONEER's Model JB-23
extension cord
separately
available.
o
When
desiring
to
connect two
stereo
headphones,
use
PIONEER's Model JB-22
"Y"
cord separately arailable.
7.
BASS CONTROL
As
this knob
is turned clockwise,
bass
is
boosted;
as
turned
counterclockwise, attenuated. The control
is
designed
to
give
a
flat
characteristic curve when
the
knob
is set
to
the
middle of
the rotation
range.
o
This knob
controls
the
tone
quality of
both right and
left
channels
simu ltaneously.
8.
TREBLE
CONTROL
Use
of
this treble control knob is
similar
to that of
the
BASS
CONTROL
KNOB (7}.
9.
HIGH FILTER
SWITCH
When
this
snritch is turned
on,
hiEh-frequency noise, such
as
scratch noise,
will
be
cut off.
10.
FM MUTING
SWITCH
Turn
on
this
wvitch when desiring
to eliminate the
noise
betwep^
stations
while tuning in
an FM broadcast
program.
Keep
1-
switch turned
off
when tuning in a remote
station.
Y2
11. AFC
SWITCH
Keep
this
wvitch turned on when listening
to
an FM
broadcast
program. To tune
in
the
FM broadcast
station more accurately,
turn off this
switch,
tune in the station, then
turn
on
the
switch
when
the
station
has
been
tuned
in.
12. BALANCE
CONTROL
When
the
knob
is turned toward RIGHT, the
center
of
loud-
speaker sound
moves
rightward; when turned
toward
LEFT,
leftward.
13. TAPE MONITOR
SWITCH
For
ordinary record play or
radio reception,
keep this switch
in
the
"oFF"
position.
Set the
s1^,itch
to "ON"
only when playing
back
a
tape by
using
a
tape
recorder
(or
tape
deck)
or
monitoring the
recording
condition
of
such equipment.
lf
the
sruitch is set
to the,,ON"
position when conducting
disk
record
play or
radio reception,
loudspeakers do not sound.
Be careful in this
respect.
14. MODE
SWITCH
When
playing
a disk record or
tape,
or
receiving a
broadcast
prcgram, keep
this
sruitch
in
the
,,STEREO,,
position.
Set the
sv\ritch
to
"MONO" only when
using
a 66n6phonic
turntable
or
tape
recorder,
or
reproducing
a
tape
on
which
monophonic
recording
is
made.
15.
LOUDNESS CONTOUR SWITCH
When the switch
is set
to
the
"ON"
position while the
receiver
is
operated
at a
low
sound volume, both
bass
and treble -
boosted
for
easy
listening.
When
the equipment
is
operated -
-
high
sound volume,
it
isiecommended to
keep the
suitch
inli6
"OFF" position.