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Precautions
DN530
viii Operator Manual
Installation
Before installing the equipment:
• Power plugs must be inserted in socket
outlets provided with protective earth
contacts. The electrical supply at the
socket outlets must provide appropriate
over-current protection.
• Both the mains supply and the quality of
earthing must be adequate for the
equipment.
• Before connecting up the equipment, check
that the mains power supply voltage rating
corresponds with the local mains power
supply. The rating of the mains power
supply voltage is printed on the equipment.
Location
• Ideally a cool area is preferred, away from
power distribution equipment or other
potential sources of interference.
• Do not install the equipment in places of
poor ventilation.
• Do not install this equipment in a location
subjected to excessive heat, dust or
mechanical vibration. Allow for adequate
ventilation around the equipment, making
sure that its vents are not obstructed. To
prevent excessive heating of the
equipment, avoid mounting it directly
above power amplifiers or other devices
that radiate significant amounts of heat,
such as radiators and heaters. Keep the
equipment out of direct sunlight.
• Make sure that the mains voltage and fuse
rating information of the equipment will be
visible after installation.
Audio connections
To ensure the correct and reliable operation of
the equipment, only high quality balanced,
screened, twisted pair audio cable should be
used.
XLR connector shells should be of metal
construction so that they provide a screen
when connected to the console and, where
appropriate, they should have Pin 1 connected
to the cable screen.
In the event of ground loop problems,
disconnect the signal screen at one end of the
connecting cables. Note that this can only be
done when the equipment is used within a
balanced system.
Radio frequency
interference
Class B device
This equipment has been tested and found to
comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide
reasonable protection against harmful
interference in a residential installation. This
equipment generates, uses, and can radiate
radio frequency energy and, if not installed
and used in accordance with the instructions,
may cause harmful interference to radio
communications. However, there is no
guarantee that interference will not occur in a
particular installation. If this equipment does
cause harmful interference to radio or
television reception, which can be determined
by turning the equipment off and on, the user
is encouraged to try to correct the interference
by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the
equipment and receiver.
• Connect the equipment into an outlet on a
circuit different from that to which the
receiver is connected.
• Consult the dealer or an experienced radio
TV technician for help.
Electric fields
Caution:
In accordance with Part 15 of the FCC
Rules & Regulations, “… changes or
modifications not expressly approved by
the party responsible for compliance
could void the user's authority to operate
the equipment.”
Should this product be used in an
electromagnetic field that is amplitude
modulated by an audio frequency signal (20Hz
to 20kHz), the signal to noise ratio may be
degraded. Degradation of up to 60dB at a
frequency corresponding to the modulation
signal may be experienced under extreme
conditions (3V/m, 90% modulation).
Operation
To avoid electrical shock, never operate the
equipment with the covers removed.