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5. CONSIDERATIONS
5.1. Ground loops
Be always sure that all the signal sources connected to the processor do not have their
grounds interconnected between them. The cable shielding, when connected to the chassis, can
never be interconnected between them. If after all, there is still noise, use the GROUND LINK
switch (19) so that electrical and mechanical grounds will be disconnected.
5.2. Audio connections
As a general rule, make the signal connections as short as possible and use the best
connectors and cable available. Cables and connectors are frequently undervaluated, forgetting that
a bad connection can result in a poor sound reproduction.
5.3. Background noise
The use of active circutry can yield, depending on the configuration, to a significant noise
level. The EPC6000 processed system have been designed for the least possible noise. Anyway,
the noise level will always depend on the correct use and installation of the whole system and,
specially, the mixer.
5.4. Cleaning
The control panel must not be cleaned with any dissolvent, abrasive or petroleum
derivated substance because paint and silk-printing could be damaged. Whenever cleaning should
be necessary, use a soft cloth slightly wet with water and neutral liquid soap or with a solution of
water and alcohol at 50%. Be careful that no liquid gets into the mixer. Never use sharp or erosive
objects to scratch the control panel. In case taht some liquid gets into the processor, do not use
cleaning spray and send the machine to the nearest ECLER Technical Services.
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