9
MA6850 Front Panel Displays
and Controls
MA6850 Front Panel Displays and Controls
METER indicate power output
of the right amplifier channel
POWER GUARD LEDs light
when the amplifier channel
Power Guard Circuit activates
METER indicate power output
of the left amplifier channel
IR (Infra Red) sensor accepts
IR signals directly from an
HR033 Remote Control
POWER
switch turns
all AC power
completely
ON or OFF
MUTE push-button
mutes audio at the
Preamp and
Speaker Outputs
STANDBY/ON
push-button turns
the MA6850 ON,
or OFF (Standby)
LOUDNESS control
(smaller inner knob)
provides adjustable fre-
quency response con-
toured to compensate
for the behavior of the
human ear at softer lis-
tening levels.
The BALANCE control
(large outter knob) al-
lows you to adjust the
relative volume balance
between channels
TREBLE control
provides 12dB
boost or cut with
a flat center posi-
tion
BASS control
provides 12dB
boost or cut with
a flat center posi-
tion
RECORD selector
selects which of the
eight input program
signal sources will
appear at the
Record Outputs
Volume control allows you
to adjust the listening level
at the Pre Amp and Speak-
ers outputs
Listen selector se-
lects which of the
eight input signal
sources will appear
at the Pre Amp and
Speakers outputs
Indicates volume
level in % from
1 to 99
Press to activate
the Listen and
Record processor
circuits
MONO push-button
combines the left
and right channels
for mono operation
at the Speakers and
Pre Amp outputs.
The Record Outputs
are not affected
Press to select either pair
of loudspeakers or both
pairs at the same time
when the optional SCR-3
Speaker Control Relay is
added
Press Rec Mon
(Record Monitor)
to listen to the sig-
nal being sent to
the Record Out-
puts
POWER GUARD LEDs light
when the amplifier channel
Power Guard Circuit activates
Stand-by On
Indicator
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