Zenith Allegro - Indicators and Filters; Speaker Jacks and Selector Switch; Connections and Selection

When
the
desired FM station
is a weak station,
adjacent
in
frequency
to a strong station,
the
AFC may pull
the tuning
into
the
stronger
station.
Under these
conditions,
leave
the
AFC switched
OFF.
Radio Dial
Scale
-
AM
Band
-
The AM scale is
calibrated
from
55
to
160. A
station
listed
as operating on
600
kHz, for
example,
will
be found
at
60 on the
dial
scale. A
station
listed at
1400 kHz
will be found at
140.
FM
Band
-
The
FM
dial
scale is
calibrated
from 88 to 108
MHz.
TUNING Meter
-
Shows proper tuning
on
AM
and
FM,
In
AM
operation,
proper tuning
is
shown
by greatest pointer
movement to
the
right. (Stronger
stations
produce
further
pointer movement.)
When
operating on FM,
you
are
properly
tuned
when the
pointer is
centered between
maximum
left and
right swings for the
station
you are tuning.
FM STEREO
Indicator Light
-
When
the FUNCTION Selector
is
set
to
FM
STEREO and
you tune to a stereo
FM broadcast,
the FM
STEREO
Light
will illuminate, indicating
the
tuner is
receiving
a stereophonic
program.
If
you
tune to
a
monaural FM
broadcast,
the FM
STEREO Light
will not
illuminate,
since the
tuner
is receiving
a monaural
program.
The Stereo
Indicator Light
will operate
only in the
FM STEREO
position
(NOT
in
the
FM position),
AFC
SWITCH
-
Automatic
Frequency
Control (Switch
located
on
front
panel)
keeps the receiver
on
the exact
station
frequency
when tuned
to
an FM
station.
See
,%
l UNING
-FM BAND" for details.
HI FILTER - Reduces
high
audio
frequencies
for
decreasing
the
noise
ordinarily
heard
with
"scratchy"
or
noisy
records
or
tapes
and
on
weak FM
stations.
LO
FILTER
-
Reduces
low
frequency
noise.
FM
MUTE
-
Cuts out
the
'hiss"
or noise
usually
heard
on the
FM
band
when tuning
between
stations.
Very
weak FM
stations
with
a high
noise
level
may
be
blanked
out
by
the
FM
MUTE
feature. If
the
station
you want
to
hear
is very
weak, simply
leave
the
FM
MUTE
Switch in the
OFF
position.
See
"TUNING-FM
Band"
for more FM
tuning
tips.
SPEAKER
JACKS
AND
SELECTOR
SWITCH
EXTENSION
SPEAKER
JACKS (Fig.
2A)
-
If your
room
will ac-
commodate
additional
speakers,
or if
you decide to
place
extension
speakers
in another
room,
Zenith
extension
speakers
Models
JIOOO,
J2000, or J3000
(8
ohm im-
pedance)
may
be
purchased
from
your dealer.
These
speakers
are
connected to the
Jacks
marked
EXT.
SPKR.
on the
back
of the stereo
cabinet.
HEADPHONE
JACK
(Fig.
2B)
-
Located
on inside
back
of
cabinet.
Plug in
headphones
here
for
private
listening.
See
section
on Speaker
Selector
Switch
for
details.
SPEAKER
SELECTOR
SWITCH
(Fig.
2B)
-
This
switch
located on
inside
back
of cabinet
controls
operation
of the built-in
speakers
and any
external
speakers
connected
to
your unit.
It
also
controls
headphone
operation.