Klark Teknik DN540 Manual Do Utilizador

viii

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.

• 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.

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 a 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.

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.

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).

To avoid electrical shock, never operate the 
equipment with the covers removed.