Roland HP109-PE Mode D'emploi page 6

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HP109-PE – Important notes
Important notes
In addition to the items listed under "Important safety instructions" and "Using the unit safely" (p. 2), please read and
observe the following:
Power Supply
• Do not connect this unit to same electrical outlet that is
being used by an electrical appliance that is controlled by
an inverter (such as a refrigerator, washing machine,
microwave oven, or air conditioner), or that contains a
motor. Depending on the way in which the electrical
appliance is used, power supply noise may cause this
unit to malfunction or may produce audible noise. If it is
not practical to use a separate electrical outlet, connect a
power supply noise filter between this unit and the elec-
trical outlet.
307
• Before connecting this unit to other devices, turn off the
power to all units. This will help prevent malfunctions
and/or damage to speakers or other devices.
308
• Although the LCD and LEDs are switched off when the
POWER switch is switched off, this does not mean that
the unit has been completely disconnected from the
source of power. If you need to turn off the power com-
pletely, first turn off the POWER switch, then unplug the
power cord from the power outlet. For this reason, the
outlet into which you choose to connect the power cord's
plug should be one that is within easy reach and readily
accessible.
Placement
• Using the unit near power amplifiers (or other equipment
containing large power transformers) may induce hum.
To alleviate the problem, change the orientation of this
unit; or move it farther away from the source of interfer-
ence.
352a
• This device may interfere with radio and television recep-
tion. Do not use this device in the vicinity of such receiv-
ers.
352b
• Noise may be produced if wireless communications
devices, such as cell phones, are operated in the vicinity
of this unit. Such noise could occur when receiving or ini-
tiating a call, or while conversing. Should you experience
such problems, you should relocate such wireless devices
so they are at a greater distance from this unit, or switch
them off.
354b
• Do not expose the unit to direct sunlight, place it near
devices that radiate heat, leave it inside an enclosed vehi-
cle, or otherwise subject it to temperature extremes. Also,
do not allow lighting devices that normally are used
while their light source is very close to the unit (such as a
piano light), or powerful spotlights to shine upon the
same area of the unit for extended periods of time. Exces-
sive heat can deform or discolor the unit.
355b
• When moved from one location to another where the
temperature and/or humidity is very different, water
droplets (condensation) may form inside the unit. Dam-
age or malfunction may result if you attempt to use the
unit in this condition. Therefore, before using the unit,
you must allow it to stand for several hours, until the
condensation has completely evaporated.
4
• Do not allow rubber, vinyl, or similar materials to remain
on the unit for long periods of time. Such objects can dis-
color or otherwise harmfully affect the finish.
358
• Do not allow objects to remain on top of the keyboard.
This can be the cause of malfunction, such as keys ceasing
to produce sound.
359
• Do not paste stickers, decals, or the like to this instru-
ment. Peeling such matter off the instrument may dam-
age the exterior finish.
Maintenance
• To clean the unit, use a dry, soft cloth; or one that is
slightly dampened. Try to wipe the entire surface using
an equal amount of strength, moving the cloth along with
the grain of the wood. Rubbing too hard in the same area
can damage the finish.
402
• Never use benzine, thinners, alcohol or solvents of any
kind, to avoid the possibility of discoloration and/or
deformation.
• The pedals of this unit are made of brass.
Brass eventually darkens as the result of the natural oxi-
dization process. If the brass becomes tarnished, polish it
using commercially available metal polisher.
Repairs and Data
• Please be aware that all data contained in the unit's mem-
ory may be lost when the unit is sent for repairs. Impor-
tant data should always be backed up in another MIDI
device (e.g., a sequencer), or written down on paper
(when possible). During repairs, due care is taken to
avoid the loss of data. However, in certain cases (such as
when circuitry related to memory itself is out of order),
we regret that it may not be possible to restore the data,
and Roland assumes no liability concerning such loss of
data.
Additional Precautions
• Please be aware that the contents of memory can be irre-
trievably lost as a result of a malfunction, or the improper
operation of the unit. To protect yourself against the risk
of loosing important data, we recommend that you peri-
odically save a backup copy of important data you have
stored in the unit's memory in another MIDI device (e.g.,
a sequencer).
552
• Unfortunately, it may be impossible to restore the con-
tents of data that was stored in the unit's memory and
another MIDI device (e.g., a sequencer) once it has been
lost. Roland Corporation assumes no liability concerning
such loss of data.
553
• Use a reasonable amount of care when using the unit's
buttons, sliders, or other controls; and when using its
jacks and connectors. Rough handling can lead to mal-
functions.

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