Marantz PM-80 - Operating Procedures

MONITOR SWITCHES
Press one of the switches to monitor or play one of the tape
decks connected to this unit. The indicator above the
pressed switch lights up.
When the tape decks are not to be monitored or played,
press the SOURCE switch.
(5) SOURCE DIRECT SWITCH
When this switch is pressed, the indicator above it lights,
and the audio signal bypasses the tone circuitry (BASS,
TREBLE) and balance control circuitry so that it can be
reproduced with a higher quality. To cancel the Source
Direct operation, press the switch again.
INPUT SELECTOR
Selects the program source to be recorded or played from
the PHONO, CD, TUNER, AUX 1, and AUX 2.
G2) VOLUME CONTROL
Adjusts the volume level. Turn the knob clockwise to
increase the volume.
MUTING SWITCH
When this switch is pressed, the audio signal is muted to
—oo dB. Use this switch when it is required to eliminate the
sound temporarily. The indicator lights when the switch is
pressed.
NOTE:
Be sure to check the VOLUME control setting before
pressing this switch to cancel muting. If the muting is
canceled while the volume setting is high, the speakers
could be damaged.
BALANCE CONTROL
Turn the knob to correct an unbalanced program source
such as stereo broadcast or to vary the output level of the
left or right channel. Note that, if the BALANCE control is
turned fully in one direction, the sound will not be heard
from the speaker on the other side.
REC SELECTOR SWITCH
Selects the tape dubbing mode between tape decks or the
signal output at the REC OUT jacks.
@i) MM/MC SELECTOR SWITCH
When the INPUT SELECTOR is set to PHONO, the type
of cartridge used on the turntable can be selected between
MM (Moving Magnet) and MC (Moving Coil) using this
switch.
Set this switch according to the cartridge used on the
turntable.
MC is selected when the switch is set to the low position.
@2) MONO SWITCH
When this switch is pressed to the low position, the left and
right channel sounds are mixed and the same sound is
produced from both speakers. Usually, set this switch to
the high position.
@3) PROCESSOR SWITCH
Press this switch to the low position when an analog audio
processor connected to this unit, such as a graphic
equalizer, is to be used.
NOTE:
If this switch is pressed while an analog processor or like is
not connected to this unit, the sound will not be heard
because the signal paths are switched. Therefore, be sure
to set this switch to the off (not pressed) position in normal
use.
BASS AND TREBLE TONE CONTROLS
Adjusts the tone by controlling the levels of two frequency
bands. Turn each control toward (+) to enhance the
corresponding frequency band, or toward (—) to attenuate
it.
TREBLE: Adjusts the high frequency level.
BASS: Adjusts the low frequency level.
@5) CLASS A SWITCH
Switches the amplifier operation mode between Class A
(25 W, 8-ohm) and Class AB (100 W, 8-ohm).
The CLASS A indicator lights when the Class A operation
is set.
This switch must be pressed while the power is OFF.
The initial setting of this switch is for Class AB operation.
NOTE:
The temperature of the top cover of the unit may rise during
Class A operation, but this is not a malfunction. Do not
place any object on the unit for this may block the
ventilation and cause damage or malfunction.
SPEAKERS 1/2 SWITCHES
These switches are used to select the speaker system(s)
connected to the SPEAKER SYSTEM 1/2 terminals on
the rear panel. If both the 1 and 2 switches are pressed to
the low positions, two speaker systems can be used at the
same time.
When headphones are used for listening, set both switches
1 and 2 to OFF (high positions).
@?) PHONES JACK
Insert the standard phone plug of the headphones into this
jack.