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The Nº390S is designed for continuous operation—hence the
standby button on the front panel rather than a power button.
However, a rear panel power switch is provided for your convenience
should you want to disconnect the unit from the AC mains (as
when taking a vacation, for example).
Drawings are included in this manual to facilitate special
installations and custom cabinetry (see Dimensions on page 61).
Operating Voltage &
Frequency
The Nº390S CD Processor is set at the factory (internally) for 100V,
120V, 200V, 220V, or 240V AC mains operation as appropriate for
the country in which it is to be sold. Make sure that the label on
the rear of the Nº390S (adjacent to the power cord) indicates the
correct AC operating voltage for your location, as attempting to
operate the Nº390S at an incorrect voltage can damage the unit.
The Nº390S CD Processor is also set at the factory for operation
on either 50 or 60 Hz AC line frequencies, as appropriate for the
country in which it is to be sold. It will not operate if it senses an
incorrect line frequency.
Warning! Neither the voltage nor the line frequency setting may be
changed by the user. There are no user serviceable parts inside
the Nº390S. Only qualified, authorized service personnel may
open the Nº390S CD Processor, as hazardous voltages exist
within the unit.
If the AC mains voltage or frequency indicated on your Nº390S is
incorrect, please contact your local, authorized Mark Levinson
dealer or distributor.
The Nº390S can easily be powered by a normal 15-ampere AC
mains line. If other devices are also powered from the same AC
line, their additional power consumption should be taken into
account.