Fold out the photographs on the inside of the back
cover. They will assist you in connecting the MR 7083
to your system. The numbers on the photographs refer
to the paragraphs that follow.
Before operating your MR 7083 AM/FM Tuner,
familiarize yourself with the controls and what they
do. The lower half of the front panel is the operating
control center. The field of 6 touchbuttons provides
control of AC power, AM or FM, and audio
processing for stereo, mono, or spatial operation.
The 8 touchbutton field controls the 8 AM and 8 FM
preset stations. The remaining 4 touchbuttons
provide search, enter, and scan up and down. The
knob is the manual tuning control.
The upper half of the front panel is the display
area. It shows the operating status, digitally displays
the station frequency and indicates precise tuning as
well as station signal strength.
A. SIGNAL (STRENGTH) INDICATOR
The SIGNAL indicator is at the right of the
station display area. The horizontal row of nine
LED bar indicators, shows the relative strength of
an FM or AM station being received. The greater
the number of bars illuminated, the greater the
received station's signal strength.
B. TUNING INDICATOR
Three LEDs , two horizontal arrows and
a center dot, located above the SIGNAL indicator,
make up the TUNING indicator. A station is
precisely center channel tuned when the center
dot LED, only, illuminates.
All FM stereo broadcasts will cause the FM MPX
bar indicator to illuminate. It is located to the left
of the SIGNAL and TUNING indicators.
C. STATION FREQUENCY DISPLAY
The ¾" high LED digital display of station fre-
quency on both FM and AM provides a high
degree of accuracy and is easy to read. The
MR 7083 tunes and displays all FM frequencies
88.0 to 108.0 MHz and all AM frequencies 520 to
1710 kHz.
D. POWER ON
The red touchbutton turns the AC power on or
off. When the power is turned on all indicators
illuminate and the tuner returns to the last tuned
station which has been retained in the tuner's
electronic memory.
E. MONO
The MONO touchbutton switches the audio
output of the tuner to MONO and lights the
MONO indicator in the display area. When in FM
and tuned to a stereo broadcast, the program will
be heard as mono and the FM MPX indicator will
be off.
F. SPATIAL
The SPATIAL touchbutton connects a Mclntosh
audio processor which influences both frequency
distribution and phase relationships to provide
enhanced special sound distribution. You will
hear an enhanced sound in both AM and FM. It
operates in both mono and stereo. When in
SPATIAL the LED under the title illuminates.
G. STEREO
The STEREO touchbutton provides automatic,
FM station activated, stereo/mono operation and
lights the LED under the STEREO indicator in the
display area.
H. AM
The AM touchbutton switches to the AM
circuits of the tuner. The station display area will
show the AM station frequency in kilohertz.
I. FM
The FM touchbutton switches to the FM circuits
of the tuner. The station display area will show
the FM station frequency in megahertz.
J. SEARCH
The SEARCH touchbutton causes the stations
held in the memory for touchbuttons 1 thru 8 to
be previewed for 5 seconds each. A second touch
stops SEARCH.
K. PRESET STATION SELECTING TOUCHBUTTONS
A momentary press on one of the touchbuttons
marked 1 thru 8 will recall from the electronic
memory the preset FM or AM station assigned to
that touchbutton. The corresponding green
indicator above the numbered touchbutton will
light.
L. ENTER
The ENTER touchbutton and any one of the
eight momentary touchbuttons is used to insert a
station into the electronic memory. Eight FM and
eight AM stations can be preset.
To enter a station in the memory, tune to the
FRONT PANEL CONTROLS 9
Содержание MR 7083
Страница 1: ......
Страница 17: ...MR 7083 BLOCK DIAGRAM 15...
Страница 18: ...THE LOCATION OF CONTROLS The numbers and letters correspond to the paragraphs on pages 6 7 9 and 10...
Страница 19: ......
Страница 20: ......