11
How to Operate the MA6850 cont
How to Read the Power Output Meters
Figure 2
How To Make A Tape Recording
The separate RECORD and LISTEN switches allow you to
make a tape recording from one program source while lis-
tening to another. You can also listen (monitor) to the re-
corded signal off the tape, a fraction of a second later, dur-
ing recording when a three head tape recorder is used. Re-
fer to Figure 2
1. Select the desired program source to record with the
front panel RECORD selector switch.
2. If a signal processor is connected for use in the record
channels, press the Rec Proc push-button to select the
record processor.
3
.
Adjust the record level using the tape recorder volume
control.
4. To listen to the tape playback of the program source just
recorded, turn the LISTEN switch to the desired input.
5. Press the Rec Mon (Record Monitor) at any time to lis-
ten to the program signals that are being sent to the
Record Outputs.
NOTE: The MA6850 RECORD OUTPUTS are not affected by
the VOLUME or BALANCE controls. To listen to a
different program source while recording, turn the
LISTEN switch to the desired source. The recording
process will not be affected and will continue.
Speakers 1 and 2
With the optional SCR-3 Speaker Control Relay
connected, select either one of two pairs of loud-
speakers or both pairs at the same time.
Reset of Microprocessors
In the event that the controls of the MA6850 stop
functioning push the POWER switch OFF and wait
about two minutes, then push the POWER switch
ON followed by pushing the STANDBY/ON push
button. This will reset the MA6850 microproces-
sors and the Amplifier should be functioning nor-
mally.
NOTE: The above condition is usually caused by either
interruptions in AC power and/or major
changes in voltage.
Meter Reading
Actual Power Output
Meter Reading
Actual Power Output
150
150 Watts
.15
0.15 Watts
-
60 Watts
-
0.06 Watts
-
30 Watts
-
0.03 Watts
15
15 Watts
15mw
15 Milliwatts
-
6 Watts
-
6 Milliwatts
-
3 Watts
-
3 Milliwatts
1.5
1.5 Watts
1.5mw
1.5 Milliwatts
-
0.6 Watts
-
0.6 Milliwatts
-
0.3 Watts
-
0.3 Milliwatts
The MA6850 Power Output meters are peak responding
and accurately indicate the actual wattage delivered to the
loudspeakers by responding to the combination of current
and voltage output. The power outputs for the meter scale
indications between the numerical markings (high-lighted
in gray) are shown below.
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