McIntosh M85 - Manual (Page 13)

13
How to Operate
Enter Mode
The ENTER Push-button is used to enter into memory, de-
sired AM or FM radio stations and any custom naming you
might wish. A station Preset and its custom name may also
be cleared from memory using the ENTER Push-button.
The LED above the ENTER Push-button will light when in
the Preset Enter Mode.
Display Modes
The DISPLAY Push-button allows for adjustment of the
Front Panel Alphanumeric Display Brightness from Off (0)
to Bright (31) and for Custom Naming Station Presets with
the name of your choice. Refer to figure 3.
Spatial Enhancement
Press the Spatial push-button to add Audio Enhancement to
either an AM or FM signal. For example, AM Stations with
monaural signals will have a simulated stereo effect. The
LED above the SPATIAL Push-button will light when in
the Spatial Mode.
Note: The Spatial Enhancement function is for the Tuner 1
only.
Mono Mode
Press the MONO Push-button to combine left and right ste-
reo signals to monaural. This is useful when the MR85
Tuner is receiving a very weak Stereo Signal that might be
accompanied with a high degree of background noise. By
switching to MONO Mode, most of the background noise
will disappear, thus making the station more listenable. The
LED above the MONO Push-button will light when in the
MONO Mode.
Note: When the tuned to an AM Radio Station the tuner will
automatically switch to the MONO Mode.
Tuner Selector
The Tuner Selector selects between the default Tuner 1 and
the optional secondary Tuner 2 Module, if installed. Once
the desired tuner is selected, the Front Panel Controls in-
cluding Station Selection and Preset Assignment may be
performed. The Number 1 LED above the TUNER Push-
button will light, indicating when Tuner 1 has been se-
lected and the Number 2 LED above the TUNER Push-but-
ton will light when Tuner 2 Module is selected.
Note: If the optional secondary Tuner 2 Module is not
installed, the TUNER Selector will stay on the TUNER 1
selection.
AM/FM Band Selector
Select the AM or FM Broadcast Band by pressing the AM/
FM push-button.
Note: When the Front Panel Alphanumeric Display is
displaying the radio station frequency (default), the
letters AM or FM will appear to the right of the tuned
stations frequency to indicate the broadcast band.
SEEK p and q
Press and release the Front Panel SEEK p (Up) and q
(Down) Push-button(s), to move from one station to the
next. Press and hold the SEEK Push-button to move
continuously up or down the broadcast band.
Automute Function
When manually tuning through the band, the outputs will
unmute only when a strong radio station is sensed and re-
ceived. Sometimes it is desirable to search for a very weak
station and the AUTOMUTE Function can be switched
OFF. This will allow all stations to be heard as well as
noise and interference normally found in-between stations.
The LED above the AUTOMUTE Push-button will light
when the Automute Function is active.
Note: The AUTOMUTE Function can only be switched OFF
when manually tuning to a station using the TUNING
Knob. When using SEEK p (Up) and q (Down) Push-
button(s), the AUTOMUTE Function will always be
engaged.
Output Level Control (Rear Panel)
There are both FIXED OUTPUTS and VARIABLE OUT-
PUTS on the MR85 Rear Panel for Tuner 1 and optional
secondary Tuner 2 Module. For most applications, the vol-
ume level at the FIXED OUTPUTS will match other
sources connected to the McIntosh Control Center or
Preamplifier. If the volume level from the tuner is higher
than from other sources, the VARIABLE OUTPUTS to-
gether with the OUTPUT LEVEL Control may be used to
reduce the tuner volume level.
Reset of Microprocessor
In the event that the controls of the MR85 stop functioning,
there is a built-in user reset function. Press the POWER
switch to the OFF position and wait for two minutes. Then
press the POWER switch to ON; the Red LED above the
Figure 3