Magnum Dynalab MD-108T - Manual (Page 5)

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CONTROL FUNCTIONS
The front panel controls consist of the following functions (Each function is clearly
displayed on the
Front Panel Display illustration on the following page):
A. POWER: Controls the power to all display functions. All functions are kept in
stand-by mode. Any LEDs on the front that are lit will stay lit.
B. MUTE: Controls the elimination of inter-station noise. It is recommended that,
when receiving marginal signals, the mute be set to off. This will eliminate
intermittent loss of signals that fall below a specific signal value. The LED
located above the station selector knob indicates when the mute is activated.
C. STEREO: Controls whether the tuner is operating in Stereo or Mono mode.
The LED located above the station selector knob indicates when the tuner is
operating in stereo.
D. BW1: Controls the IF super narrow setting. This setting should only be used in
extreme reception conditions of adjacent channel problems.
E. BW2: This setting combines excellent frequency response with high adjacent
channel selectivity.
F. BW3: Controls the ultra wide IF setting and offers the best frequency
response. Note: One of the BW switches must be on for the tuner to operate.
G. BLEND: In the “ON” mode, the stereo signal strength is sampled continuously
in the Blend monitor circuit. Should the signal strength fall below the level
required for full quieting with maximum stereo separation, the blend circuit will
automatically narrow the stereo separation proportionately to minimize the
noise that might otherwise be generated in the multiplex circuit.
H. DIM: Used to extend the life of all display components especially the magic eye
by reducing their intensity.
I. TUNING KNOB: Rotating this control drives a precision ten turn potentiometer
that selects the desired frequency.
J. METERS: The left hand meter displays multi-path, see the section on
Reception
Aids. The right hand meter displays signal strength. The higher the reading,
the better the reception.
K. CENTER TUNE MAGIC EYE: Provides a visual display for fine tuning the
frequency to maximize stereo separation and minimize noise. Tune the unit to