Harman Kardon 75+ - Front Panel Switches and Functions

HEADPHONE JACKS
The stereo or 4-CH headphone receptacles located on the front panel of
your
75+
receiver
will
accept
any
type
of
headphone.
Stereo
phones
come
with
a
single
plug
which
should
be
connected
to
the
FRONT
receptacle.
4-CH
phones
come
with
two
plugs.
Connect
the
front
plug
to
the
FRONT
receptacle
and
the
back
plug
to
the
BACK
receptacle.
The
headphone
receptacles
are
“ON” at all times. To listen only to your phones without having your speakers
on, merely set the SPEAKER switches on the front row of pushbuttons to ‘‘OFF”’.
MAIN SPEAKER SWITCH
In order to hear any or all of the speakers connected fo your main system,
this switch must be depressed.
When in the ‘‘'ON”’ position all speakers connected to the main system are
“ON”. Should you desire to listen to stereo or 4-CH headphones alone, the
speakers can be turned off at your discretion.
REMOTE SPEAKER SWITCH
In
order
to
hear
any
or
all
of
the
speakers
connected
to
your
remote
system,
this
switch
must
be
depressed.
When in the ““ON” position all speakers connected to the remote system
are ‘'ON”. Should you desire to listen to stereo or 4-CH headphones alone, the
speakers can be turned off at your discretion.
EXT DOLBY NR/TAPE MON 2 SWITCH
When
an
FM
station
broadcasts
a
Dolby
encoded
program,
it
may
be
decoded
by
use
of
an
external
Dolby
processor,
If
you
use
an
external
proces-
sor,
the
Dolby
switch
when
depressed,
will
decode
an
encoded
program.
lf
the
Dolby
button
is
depressed
without
an
external
processor
connected,
you
will
get
zero
output
from
your
speaker
system.
Dolby IN receptacles may be used as a 2-channel Tape Monitor provided
you are not using the Dolby Function.
TAPE MON SWITCH
If
your
4-CH
tape
recorder
has
a
special
monitoring
feature,
depressing
this
switch
“IN”
will
permit
you
to
monitor
your
tapes
a
split
second
after
they
are
recorded,
When
not
in
use
this
switch
must
be
in
the
‘‘'OUT’’
position,
otherwise
it
will
defeat
the
output
of
the
receiver.
This
switch
and
associated
rear
panel
receptacles
can
also
be
used
as
an
additional
set
of
stereo
or
4-CH
high
level
inputs.
CONTOUR SWITCH
One
of
the
limitations
of
human
hearing
is
its
tendency
to
lose
sensitivity
to
the
very
low
pitched
sounds
as
the
program
sound
level
is
reduced,
It
is
this
characteristic
(known
as
the
Fletcher-Munson
effect)
which
causes
one
to
play
music
programs
at
high
listening
levels
in
order
to
experience
the
full
rich
tone
available
from
fine
modern
recordings.
The
Harman/Kardon
CONTOUR
switch
compensates
for
this
effect,
thereby
eliminating
high
listening
levels
as
a
requisite
for
full
enjoyment
of
reproduced
music.
For
warm,
full-bodied
reproduction
at
low
listening
levels,
throw
the
CONTOUR
switch
to
the
IN
position.
At
high
levels,
the
CONTOUR
switch
has
no
effect.
FM MUTING SWITCH
The
purpose
of
the
muting
circuit
is
to
reduce
audible
noise
when
tuning
from
station
to
station.
Since
very
weak
signals
may
be
muted
at
the
same
time,
the
front
panel
FM
MUTING
switch
may
be
used
to
defeat
the
muting
circuit
on
weak
signals.
To
reduce
interstation
noise,
throw
the
MUTING
switch
'‘ON’’.
To
defeat
the
circuit,
throw
the
switch
‘‘OFF’’.
HIGH CUT SWITCH
The
HIGH
CUT
filter
has
been
designed
to
reduce
the
high
frequency
response
of
your
receiver,
This
will
reduce
annoying
record
scratch,
tape
hiss,
FM
background
noise,
etc.
LOW CUT SWITCH
At
times,
record
changers,
turntables
and
even
some
FM
stations
produce
an
objectionable
low
frequency
signal
that
is
strong
enough
to
be
introduced
into
the
playback
system.
This
is
known
as
rumble
and
can
be
cancelled
out
by
the
special
low
frequency
cut
off
filter
network
included
in
this
receiver.
When-
ever
rumble
is
present
depress
the
LOW
CUT
switch.
FUNCTION SWITCH
This
switch
selects
the
desired
program
source
to
be
heard
through
your
music
system.
PHONO
Use
these
positions
for
all
mono,
stereo
or
SQ
matrix
records.
Any
standard
stereo
record
player
can
play
SQ
matrix
discs
without
special
modifications.
The
SQ
disc
is
completely
compatible
with
stereo
systems
and
can
be
played
on
any
quality
record
changer
or
manual
turntable
using
a
high
compliance
magnetic
pickup.
Your
existing
record
player
connected
to
the
LEFT
and
RIGHT,
PHONO
input
receptacles
will
play
your
mono,
stereo
and
SQ
records.
In
order
to
play
SQ
discs
in
4-CH
the
mode
switch
must
be
placed
in
either
the
SQ
matrix
1
or
SQ
matrix
2
positions.