LEM FX22, Owner'S Manual

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2
FX
22
Warnings & installation
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Connection to the mains supply
The unit is supplied with an external power supply. Before switching on the unit, make certain that the
mains voltage matches that shown on the rear (a tolerance of up to ±10% is acceptable).
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Switching on and off
CAUTION: before switching on or off, make certain the sound system’s amplifiers are off: this will avoid
signal peaks, which are annoying and sometimes dangerous (particularly for speaker enclosures).
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Connecting and preventing or identifying interference
First of all, check that the apparatus is installed in a place free from industrial or RF (radio frequency)
interference. Avoid installing your equipment very near radio or TV sets, mobile phones, etc., as these
can cause noisy interference.
When connecting the other parts of your sound system, watch out for the so-called “ground loops”, which
could cause hum and jeopardize the products’s excellent Sound-to-Noise and low distortion characteristics.
The best way (even if not always feasible) to avoid ground loops is to connect the electric ground of all
the equipment to a single central point (“star” system). In this case, the central point can be the mixer.
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Protection and maintenance
Don’t force knobs, switches or faders: these are designed and manufactured to respond to light pressure
and could be damaged if used with excessive force.
Take care of your connector cables, a very frequent cause of small/big problems. Always grip them by
the connector, avoid pulling them forcefully and wind them without forming knots or sharp bends: they’ll
last longer this way, and be more reliable, which is a definite advantage.
Avoid exposing the product to strong direct sunlight, high temperatures or intense vibrations, in very dusty
or particularly damp surroundings or, even worse, in the rain: this will help to avoid the risk of faulty
operation, deterioration or even electric shocks and fires.
The product is built in shock-resistant material. Nevertheless, protect it during transport with a flight-case
to avoid the risk of any casual accidents.
When you’ve finished using the apparatus, it’s always advisable to protect it from dust, but any dust that
does form should be removed using a cloth or a soft brush. Never use alcohol, acetone or any solvents.
The effect does not require any other maintenance.
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In the event of breakdown
All user-adjustable parts are external and easily accessed.
In the event of a breakdown, do not open the apparatus, but contact the nearest Generalmusic/Lem
Service Centre.
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Keeping the documentation
Keep this user’s manual for future consultation. Also remember that the effect will get a better price on
the secondhand market if (as well as being in good condition) it has its original documentation and
packaging.
Warnings & installation