SoundCraft 1GB2 Mains Installation, General Precautions, Handling and Transport, Power Cable

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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.

W a r n i n g ! 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.

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GB2 User Guide

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Contents Page GB2 User Guide GB2 User GuideGB2 User Guide Contents GB2 User Guide Introduction Key Features Warranty GB2 User Guide Safety Symbol Guide InstallationImportant Safety Warnings GB2 User Guide General Precautions Mains InstallationPower Cable General Wiring ProceduresAudio Wiring Initial Wiring ConsiderationsShielding Recommended headphone impedance is 50-600 ohms Points to RememberTroubleshooting Setting Up & TroubleshootingInitial set-up Meters not showing any signal Optional External Power SupplyAudio Connector Pinouts Dimensions Block Diagrams Input Channels Master Section / Outputs GB2 User Guide Using The Console Mono Input Line Input 1/4 TRS Jack Rear ConnectorsStereo Input EQ is switched in by the EQ switchMIC Input Left and Right 3 pin female XLR GB2 User Guide Mix L, R and Mono Outputs Master SectionMonitoring & PFL/AFL Record OutputsTalkback PSU Monitor LEDsFront Panel Connectors Rear Connector PanelLamps Noise Typical SpecificationsMark Up Sheets GB2 User Guide GB2 User Guide