CONNECTING
AC CONNECTIONS
There are three AC outlets on the back
panel of the MA230. The black receptacles
have a maximum power rating of 350 watts
total. The power to the two black receptacles
is controlled by the front panel power switch.
Use these receptacles for accessories such
as a tuner and tape recorder. The red recep-
tacle is not switched. Use the red recep-
tacle for powering a turntable or record
changer. The red receptacle is not switched
to prevent turning off the power to the turn-
table while its idler drive is still engaged. The
turntable is protected by this arrangement
because it is necessary to turn off the turn-
table with its own control switch. The turn-
table drives will then be properly disengaged
to avoid possible damage.
Figure 23. AC CONNECTIONS
L+R OUTPUT
Both left and right channel amplifier out-
puts are combined into a monophonic signal
at the L+R output jack. Connect this jack to
an external amplifier for monophonic repro-
duction through another speaker system.
Monophonic signals can then be distributed
to other rooms without affecting the normal
stereo performance of the MA230.
GROUND CONNECTIONS
A single ground post is provided on the
MA230. The chassis ground from turntables,
record changers, tape decks, etc., should be
connected to this post. Do not connect other
ground wires to the same units. Hum is
likely to be heard in the system if more than
one ground circuit is used.
The left and right cables from each pro-
11
Summary of Contents for MA 230 - SERVICS BULLETINS
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