Care And Maintenance; Connection To Mains Supply - Montarbo MCR Serie Manual De Instrucciones

Important !!!

CARE AND MAINTENANCE

• This device has been designed for operation in tropical and very hot
climates.
• Never place burning candles or other sources of open flames on top
of the mixer.
• Never expose the mixer to heat sources such as radiators or other
products that produce heat.
• Never expose the mixer to direct sunlight, excessive vibrations or
mechanical shocks.
• Avoid operating and storing the mixer in damp or dusty places:
this will avoid malfunctions and premature degrading of specifications.
• When setting up the system outdoors, make sure to protect it
against rain.
• Avoid using the mixer close to strong sources of electromagnetic
interferences (e.g. video monitors, high power electrical cabling).
This may lead to degradation of audio quality.
• Care should be taken so that objects do not fall and liquids are not
spilled into the mixer. In public events take special care in selecting the
mixer location, and don't let people, musicians, technicians or anyone
put glasses, cups, food or drinks containers, ashtrays and lighted
cigarettes on the mixer.
• Take care of the connectors cables, always coil them avoiding knots
and twists.
• Never apply excessive force to the controls (knobs, sliders, pushbuttons).
• Use a soft brush or a jet of air to clean the panel. Do not use alcohol,
solvents or detergents
• Before making any connection to the mixer, make sure that the mains
switch is in the "O" (off) position.
• As long as it is plugged in, dangerous electrical potentials may be
present inside the device, so, before undertaking any sort of mainte-
nance work etc., always make sure it has been unplugged from the
mains socket.
• If service is needed, refer to qualified service personnel only or to the
Montarbo distributor in your country.

CONNECTION TO MAINS SUPPLY

• Make sure that the mains switch is in it's '0' (off) position.
• Check that mains voltage corresponds to the voltage indicated on
the panel.
• Use only the factory supplied mains cable or, if a different plug style
plug is needed, a suitable cable with a ground connection and marked
with the safety approvals valid in the country of use.
Always connect it to a grounded outlet.
• Leave enough room to get to the mains power socket and the mains
connector on the back panel. As long as it is plugged in, dangerous
electrical potentials may be present inside the device, even when the
mains switch is in the '0' (off) position and the power indicator is off,
so, before undertaking any sort of maintenance work etc., always
make sure it has been unplugged from the mains socket.
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ENGLISH
INSTALLATION AND FIRST OPERATION
• Always use quality cables and connectors.
• Use shielded cables for your connections to the micro and line
inputs, to the send/return sockets, to the effect send and monitor
outputs, to the tape in/out and to the Control Room outputs.
• For model MCR12FX/MCR16FX mixers. Use shielded cables for
connection of active speakers to the master L and R outputs.
• For model MCR12FXP/MCR16FXP powered mixers.
Use unshielded cables with adequate copper section (2.5 mm
for connection of passive speakers to the master L and R outputs.
Never use the internal amplifiers with loads lower than 4 ohm each
channel.
• Before switching on or off the mixer turn off or disconnect the
speaker enclosures connected to the mixing console. This will avoid
switching noises that may cause damages to loudspeakers.
PRELIMINARY CONNECTIONS AND SETTINGS
• Connect the speaker enclosures
• Connect the microphones to the XLR sockets, the line level sources
and the instruments to the jack sockets.
Do not connect microphones to LINE inputs.
• Before turning on the mixer, set the channel volume faders and the
master volume faders to their lowest settings.
• Switch on the unit and turn the gain controls to their lowest settings,
the tone controls and pan pots to the middle position, and the auxiliary
and effect sends anti-clockwise to their lowest settings.
• To optimize dynamics of each channel according to the various signal
sources, proceed as follows:
- using a microphone (connected to the XLR mic input) in conditions
typical of the intended use, set the GAIN control so as to cause the PK
LED to illuminate;
- now reduce the GAIN just enough until the PK LED switches off and
adjust the volume.
• The channel's peak LED is affected only by the GAIN control and the
TONE controls.
Note: Repeat the above procedure for all the channels, one at a time,
using the signal source assigned to that channel and simulating real
operating conditions as closely as possible.
• Set the volume faders of the L/R master outputs and of the internal
effects near to the '0' setting and the faders of the monitor volume
controls to the middle position, now adjust the volume and the monitor
sends of each channel according to your requirements.
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