2
Instructions and installation
✔ ✔
✔ ✔
✔ Connecting the mixer to the mains supply.
Before connecting the amplifier to the mains socket, always make certain that:
- the electric system and mains socket have an adequate grounding, compatible with
the safety norms (if you’re uncertain, consult specialized personnel);
- the mains voltage corresponds to that shown on the rear of the unit (an allowance
of up to ±10% is accepted);
- the power cord is not damaged and has no bare wires;
- the on/off switch is in the OFF position.
Make sure the mixer is also off before disconnecting the power cord from the mains socket.
It is best to lower (or better still close) the output levels and
switch off any amplifiers connected to the
line output of the mixer before switching the mixer on or off: this avoids annoying and sometimes
dangerous (particularly for the speaker cabinets) signal peaks.
When the mixer is switched on, it’s normal for the LEDs to light up for a few moments.
✔ ✔
✔ ✔
✔ Connection and prevention or identification of possible disturbances.
First of all, check that the mixer 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 components of your sound system, watch out for the so-called “ground loops”,
which could cause hum and jeopardize the mixer’s excellent Signal-to-Noise and low distortion characteris-
tics.
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 (the so-called “star” system). In this case, the central point in sound
systems is the mixer.
✔ ✔
✔ ✔
✔ Protection and maintenance.
Do not force knobs, switches or faders: they have been designed to respond to a light touch and could
be damaged if treated with excessive force.
Take care of the connector cables. Always hold them by the connectors, avoiding pulling the wire and
avoid knots and twists when coiling them: this gives the advantage of increasing their life and reliability.
Avoid exposing the mixer to direct sun, strong heat, intense vibrations, very dusty or damp surroundings,
or even worse, rain: this will avoid eventual malfunction, deterioration or even electric shocks and fires.
Any dust on the mixer should be removed using a soft dry cloth or a brush; never use alcohol, acetone
or solvents.
✔ ✔
✔ ✔
✔ In the event of breakdown
All user-adjustable parts are external and easily accessible.
Never open the amplifier: you could run the risk of serious electric shocks.
In the event of breakdown, contact the nearest GENERALMUSIC/LEM Assistance Centre
✔ ✔
✔ ✔
✔ Conservation of documents and packing.
Keep this manual for future consultation. On this subject, remember a golden rule: equipment always
gets a better price on the secondhand market if it has all its original documentation and packing as well
as being well kept.
Instructions and installation
To Next Page
Loading...
