Soundcraft LX7ii-24 — общие рекомендации по безопасности и эксплуатации микшера [11/32]
![Soundcraft LX7ii-24 [11/32] 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](/views2/1990472/page11/bgb.png)
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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 InstallationMains Installation
Mains InstallationMains Installation
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.
Содержание
- Important please read this manual carefully before using your mixer for the first time p.2
- Introduction introduction introduction introduction introduction 55555 p.3
- Inst inst inst inst installa alla alla alla allation tion tion tion tion 99999 p.3
- Contents contents contents contents contents p.3
- Block diagram block diagram block diagram block diagram block diagram 19 19 19 19 19 p.3
- Using the console using the console using the console using the console using the console 21 21 21 21 21 p.3
- Specifica specifica specifica specifica specifications tions tions tions tions 31 31 31 31 31 p.3
- Featur featur featur featur features es es es es p.6
- W w w w war ar ar ar arranty ranty ranty ranty ranty p.7
- W w w w warning arning arning arning arning p.10
- Under no circumstances should the mains earth be disconnected from the mains lead p.10
- To avoid the risk of fire replace the mains fuse only with the correct value fuse as marked on the rear panel p.10
- This unit must be earthed p.10
- The internal power supply unit contains no user serviceable parts refer all servicing to a qualified service engineer through the appropriate soundcraft dealer p.10
- Pr pr pr pr precautions and safety instr ecautions and safety instr ecautions and safety instr ecautions and safety instr ecautions and safety instructions uctions uctions uctions uctions p.11
- Power cable p.11
- Mains installation mains installation mains installation mains installation mains installation p.11
- Handling and transport p.11
- General wiring procedures p.11
- General precautions p.11
- Caution in all cases refer servicing to qualified personnel p.11
- 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 p.11
- Signal levels p.11
- Shielding p.12
- Initial wiring considerations p.12
- Audio wiring p.12
- Points to remember p.13
- Troubleshooting p.14
- Setting up t setting up t setting up t setting up t setting up trrrrroubleshooting oubleshooting oubleshooting oubleshooting oubleshooting p.14
- Nnnnno p o p o p o p o pooooowwwwwer er er er er p.14
- Initial set up p.14
- Condenser mic n condenser mic n condenser mic n condenser mic n condenser mic nooooot w t w t w t w t wor or or or orking king king king king p.14
- Take care when using unbalanced sources which may be damaged by the phantom power voltage on pins 2 3 of the xlr connector p.23
- Only connect condenser microphones with the 48v powering off switch up and only turn the 48v powering on or off with all output faders down to prevent damage to the mixer or external devices p.23
- Mono input channel p.23
- Mics should always be plugged in and all output faders set to minimum before switching 48v on to avoid damage to external equipment p.23
- Do not use unbalanced mics with 48v switched on as they may be damaged by the phantom power voltage balanced dynamic mics and leads can normally be used with 48v switched on contact your microphone manufacturer for guidance p.23
- Stereo input channel p.27
- Master section p.28
- Caution pressing this switch cuts off the normal mix l r signal and it should therefore not be used during live performance or recording p.29
- Specifica specifica specifica specifica specifications tions tions tions tions p.31
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