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GENERAL PRECAUTIONS
Avoid storing or using the mixing console in conditions of excessive heat or cold, or in positions where it is likely to be subject to vibration,
dust or moisture. Do not use any liquids to clean the fascia of the unit: a soft dry cloth is ideal.
Avoid using the console close to strong sources of electromagnetic radiation (e.g. video monitors, high-power electric cabling): this may
cause degradation of the audio quality due to induced voltages in connecting leads and chassis.
Caution! In all cases, refer servicing to qualified personnel.
Handling and Transport
The console is supplied in a strong carton. If it is necessary to move it any distance after installation it is recommended that this packing
is used to protect it. Be sure to disconnect all cabling before moving. If the console is to be regularly moved we recommend that it is
installed in a foam lined flightcase. At all times avoid applying excessive force to any knobs, switches or connectors.
Power Cable
Always use the power supply cable supplied with the mixer: the use of alternative cables may cause damage and voids the warranty.
Warning ! In the event of an electrical storm, or large mains voltage fluctuations,
immediately switch off the mixer and unplug from the mains.
Signal Levels
It is important to supply the correct input levels to the console, otherwise signal to noise ratio or distortion performance may be
degraded; and in extreme cases, damage to the internal) circuitry may result. Likewise, on all balanced inputs avoid sources with large
common mode DC, AC or RF voltages, as these will reduce the available signal range on the inputs. Note that OdBu =0.775V RMS.
Refer to the Specifications section for details of input and output levels.
MAINS INSTALLATION
General Wiring Procedures
To take full advantage of the excellent signal to noise ratio and low distortion of Soundcraft consoles, care must be taken to ensure that
incorrect installation and wiring does not degrade the performance of the desk. Hum, buzz, instability and Radio Frequency interference
can usually be traced to earth loops and inferior earthing systems. In some areas, especially heavily industrial areas, the incoming mains
earth will not be adequate and a separate technical earth for all the audio equipment must be supplied. However, check with your local
electricity supply company to ensure that safety regulations are not infringed or negated.
The successful, hum free, installation of a system requires forethought, and the establishment of a set of ground rules, which must be
consistently adhered to at all stages of installation.
INST
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INSTALLA
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The Model 1620LE is an all solid state unit, ruggedly constructed with the highest quality components. As such, it should provide years
of trouble free use with normal care. All parts used are conservatively rated for their application, and workmanship meets UREI by
Soundcraft’s rigid standard.
NO SPECIAL PREVENTIVE MAINTENANCE IS REQUIRED, AND (WITH THE
EXCEPTION OF THE MICROPHONE GAIN TRIM) THERE ARE NO INTERNAL
SERVICE ADJUSTMENTS.
