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Balance control to restore the most uniform spread of stereo
sound between the speakers. Examples include unequal
output from the two channels of the phono cartridge, differ-
ent acoustical environments around the two loudspeakers,
or simply a listening position that
is
closer to one speaker
than to the other.
These controls do not affect the signals fed to the TAPE
RECording jacks.
15. TUNING DISPLAY
The digital display shows the broadcast frequency that
the receiver
is
tuned to.
FM center-tuning. The center tuning indicator, at the
bottom of the display window,
is
a bar between two triangular
pointers (arrows). When the receiver
is
slightly mistuned one
of the triangular pointers glows to show the direction
in
which
the tuning should be changed; i.e
.,
if the arrow points to the
right, the right-hand portion of the Up/Down Tuning rocker
should be tapped to increase the tuning frequency slightly.
When an
FM
station is correctly tuned, the triangular pointers
will vanish and the center-tune bar will glow.
16. STATUS INDICATORS .
The
FM
STEREO indicator illuminates when a stereo
FM
broadcast
is
received and decoded. Note that if the
MONO button
is
engaged, all broadcasts will be received
in
mono.
If an
FM
station is broadcasting only
in
mono, or if a
stereo broadcast signal is too weak for reasonably noise-free
reception
in
stereo, then the tuner will automatically switch
into the mono mode, and the
FM
STEREO light will not
illuminate. Also, if you have mis-tuned away from the center
of a station's broadcast channel, the stereo decoding circuits
may not lock onto the signal and it may be received only
in
mono.
The SOFT CLIPPING indicator illuminates when the
Soft Clipping switch (on the rear panel) is engaged.
17.
TUNING PRE-SETS
You
can store the frequencies of ten favorite stations
(5
FM
and 5 AM)
in
these pre-sets, using the ENTER button.
Then, to tune those stations from day to day, just press the
appropriate pre-set button.
The pre-sets preserve their frequency assignments
when the power
is
switched off, or when the AC line cord is
unplugged, for a period of at least two weeks. Thus you can
re-arrange your stereo system, or move the equipment from
room to room, without losing the pre-set frequencies. But if
you leave the power off for a month or more, you may have
to re-program the tuning pre-sets.
18. MEMORY ENTER
This button engages the Memory Enter mode. Use this
mode to enter the frequencies of your favorite stations in
the ten pre-sets (five pre-sets on the
FM
band and another
group of five pre-sets on
AM). The procedure is as follows.
1.
Decide which station you want to assign to each
pre-set. On each band you may arrange the stations
in
any order that you find convenient (or easy to remember):
alphabetical
(1
= WABC, 2 = WCBS, 3 =
WNYC
..
. ) , nu-
merical
(1
=
BBC1,
2 = BBC2 . . . ), or
in
order
of
increas-
ing frequency
(1
=
89.7,
2 = 90.9, 3 = 95.3, etc.). If you are
not certain of the frequencies of the stations, check the
station/frequency directory
in
a local newspaper or
broadcasting guide.
2. Select the
FM
or AM band, as appropriate. Using the
Up/Down Tuning control, manually tune to the first station on
your list. Press the ENTER button, then press Pre-set #1 to
store the first station
in
the tuner's memory.
NOTE: After you press ENTER, you will have ap-
proximately ten seconds to store a station
in
one
of
the
g
pre-sets. After that interval, the ENTER mode will auto-
matically de-activate.
3.
Tune
to the second station on your list. Press the
ENTER button and, within ten seconds, press Pre-set
#2
to store the second station.
4.
Tune
to the third station on your list, press ENTER,
and press Pre-set
#3
to store the station. Continue
in
this
manner with any other stations that you want to store
in
the
remaining pre-sets. Then switch to the other tuning band
(FM or AM) and repeat the process for the second set of
five pre-sets.
Incidentally, if you make a mistake or change your
mind, it is not necessary to re-program all five pre-sets
in
sequence.
You
can
re
-program any pre-set simply by tuning
to the desired frequency, pressing ENTER, and pressing
the pre-set that you want to re-program.
After you finish programming the pre-sets, you may wish
to post your list of stations and associated pre-set numbers
nearby for reference.
CAUTION:
In
day-to-day operation, be careful not to
press the ENTER button by accident. Doing so will activate
the ENTER mode, and if you then press any of the pre-set
buttons you will unintentionally re-program that pre-set.
You
would then have to manually re-tune to the station you
wanted, and re-ENTER it into the pre-set. If you acciden-
tally press ENTER, you can force the circuit to back out of
the ENTER mode by briefly switching to the other tuning
band
(e
.g
.,
from
FM
to AM and back), or by tapping the
Tuning rocker.
FAST SCAN. The ENTER button also serves as
an
"accelerator" for the Up/Down Tuning rocker. If you press
both the ENTER button and the Tuning rocker, the tuner will
scan up
or
down
in
frequency approximately five times faster
than normal, moving through the entire
FM
tuning band
in
a few seconds. As you approach the frequency you want,
simply take your finger off the ENTER button and the Tuning
scan will revert to its normal speed. (This use of the Tuning
rocker keeps the tuner out of the ENTER mode.)
The usual caution applies, however: if you stop the
tuning scan but continue to press the ENTER button, the
tuner will
go
into the ENTER mode. Then if you press any of
the station pre-sets within ten seconds, you will re-program
that pre-set. ·
19.
FM
/
AM
This button switches between the two tuning bands:
FM
or
medium-wave AM. The digital tuning display shows
the tuned frequency
in
MHz '(for FM) or kHz (for AM).
The tuning circuit has a "last station selected" memory.
When you switch between tuning bands, the circuit automati-
cally re-tunes the last station that you were tuned to when
you previously used that band.
20.
UP
/
DOWN
TUNING
The Up/Down Tuning control is a "rocker" switch
that allows you to tune up and down the
AM
or
FM
radio
spectrum. Depress the right-hand section of the rocker
in
order to tune to higher frequencies,
or
the left-hand section
to tune to lower frequencies.
When the Tuning rocker
is
pressed momentarily, the
tuned frequency shifts up or down by one step, unless
SEARCH has been engaged.
(If SEARCH
is
engaged,
the tuner will scan
in
a station-by-station mode rather than
in
fixed tuning steps.)
In
North America the size of this tuning step is
10
kHz on
the AM band.
In
Europe and elsewhere the tuning step is 9
kHz on AM.
In
either case the tuning step for the
FM
band is
0.05 MHz. Each time the Tuning rocker
is
tapped, the tuned
frequency will shift up
or
down by this minimum tuning
increment, as shown on the digital frequency display.
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